:root {
    --font-family-body: 'Inter', sans-serif;
    --font-family-heading: 'Outfit', sans-serif;

    /* Standard Light Mode Variables */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-sidebar-bg: rgba(255, 255, 255, 0.75);
    --color-bg-tertiary: #f1f5f9;
    --color-border: rgba(226, 232, 240, 0.8);

    --color-text-primary: #0f172a;
    --color-text-secondary: #475569;
    --color-text-accent: #059669;

    --color-accent: #10b981;
    --color-accent-hover: #047857;
    --color-prose: #334155;

    --glass-blur: blur(20px);
    --chat-font-size: 0.875rem;

    /* Mesh Gradient Colors — Enhanced for Fluidity */
    --mesh-1: #ecfdf5;
    --mesh-2: #f0fdf4;
    --mesh-3: #eff6ff;
    --mesh-4: #fff7ed;
    --mesh-5: #fdf2f8;
    /* Pink tint */
    --mesh-6: #f0f9ff;
    /* Blue tint */
}

.hidden {
    display: none !important;
}

/* ===== DARK MODE (Premium Obsidian/Emerald) ===== */
:root.dark {
    --color-bg-primary: #0B0E14;
    --color-bg-secondary: #0F1318;
    --color-bg-tertiary: #171C26;
    --color-sidebar-bg: rgba(11, 14, 20, 0.92);
    --color-border: rgba(255, 255, 255, 0.08);

    --color-text-primary: #E2E8F0;
    --color-text-secondary: #94A3B8;
    --color-text-accent: #34D399;

    --color-accent: #34D399;
    --color-accent-hover: #10B981;
    --color-prose: #CBD5E1;

    --mesh-1: rgba(16, 185, 129, 0.05);
    --mesh-2: rgba(99, 102, 241, 0.05);
    --mesh-3: rgba(16, 185, 129, 0.04);
    --mesh-4: rgba(99, 102, 241, 0.04);
    --mesh-5: rgba(139, 92, 246, 0.03);
    --mesh-6: rgba(20, 184, 166, 0.03);
}

body {
    background-color: var(--color-bg-primary);
    background-image: radial-gradient(at 0% 0%, hsla(152, 80%, 15%, 0.1) 0, transparent 50%),
        radial-gradient(at 100% 100%, hsla(210, 80%, 15%, 0.1) 0, transparent 50%);
    color: var(--color-text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

:root.dark body {
    background-image: radial-gradient(at 0% 0%, hsla(152, 80%, 15%, 0.15) 0, transparent 50%),
        radial-gradient(at 100% 100%, hsla(210, 80%, 15%, 0.2) 0, transparent 50%);
}





/* ===== FONT SIZE ===== */
:root.font-small {
    --chat-font-size: 0.8rem;
}

:root.font-medium {
    --chat-font-size: 0.875rem;
}

:root.font-large {
    --chat-font-size: 1rem;
}

/* ===== Settings Tabs ===== */
.settings-tab {
    color: var(--color-text-secondary);
}

.settings-tab:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.settings-tab.active {
    background-color: var(--color-accent);
    color: white;
}

/* Settings option buttons (theme-mode, font-size, accent-color etc) */
.theme-mode-btn,
.font-size-btn,
.response-style-btn,
.chart-style-btn {
    border-color: var(--color-border);
    color: var(--color-text-secondary);
    background-color: var(--color-bg-secondary);
}

.theme-mode-btn:hover,
.font-size-btn:hover,
.response-style-btn:hover,
.chart-style-btn:hover {
    border-color: var(--color-accent);
    color: var(--color-text-primary);
}

.theme-mode-btn.active,
.font-size-btn.active,
.response-style-btn.active,
.chart-style-btn.active {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

/* Toggle switch uses accent color */
.peer:checked~div[style*="--accent-toggle"] {
    background-color: var(--color-accent) !important;
}

/* ===== LAYOUT & SIDEBAR ===== */
.sidebar {
    position: relative;
    width: 320px;
    height: 100vh;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 50;
    flex-shrink: 0;
}



/* Mobile Sidebar (Fixed Overlay) */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: 280px;
        z-index: 100;
        transform: translateX(0);
        box-shadow: 20px 0 50px rgba(0, 0, 0, 0.1);
    }

    .sidebar.is-collapsed {
        transform: translateX(-100%);
        width: 280px;
        /* Keep width same for animation */
        opacity: 1;
        /* Keep visible during slide */
        margin-left: 0;
        pointer-events: none;
    }

    /* Fixed header spacer for mobile */
    main {
        padding-top: 64px;
    }
}

#mobile-backdrop {
    transition: opacity 0.3s ease;
}

#mobile-backdrop.opacity-100 {
    opacity: 1;
}

#mobile-backdrop.hidden {
    display: none;
}

.color-theme-btn {
    color: var(--color-text-primary);
}

/* ===== SIDEBAR ACTION BUTTONS ===== */
.sidebar-action-btn {
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.sidebar-action-btn:not(:disabled):hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18) !important;
    z-index: 10;
}

.sidebar-action-btn:not(:disabled):active {
    transform: translateY(0) scale(0.97);
}

/* Shimmer effect on New Chat button */
#new-chat-btn:not(:disabled)::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transition: left 0.5s ease;
}

#new-chat-btn:not(:disabled):hover::after {
    left: 100%;
}

/* Dashboard button hover accent border */
#new-dashboard-btn:not(:disabled):hover {
    border-color: var(--color-accent) !important;
    color: var(--color-accent) !important;
}

/* ===== WELCOME SCREEN ===== */
.welcome-container {
    position: relative;
    max-width: 640px;
    animation: welcomeFadeIn 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes welcomeFadeIn {
    0% {
        opacity: 0;
        transform: translateY(24px) scale(0.97);
    }

    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.welcome-mesh-bg {
    position: fixed;
    top: -50%;
    left: -50%;
    right: -50%;
    bottom: -50%;
    width: 200%;
    height: 200%;
    z-index: -1;
    background-color: var(--color-bg-primary);
    background-image:
        radial-gradient(at 10% 20%, var(--mesh-1) 0px, transparent 50%),
        radial-gradient(at 80% 10%, var(--mesh-2) 0px, transparent 50%),
        radial-gradient(at 90% 90%, var(--mesh-3) 0px, transparent 50%),
        radial-gradient(at 20% 80%, var(--mesh-4) 0px, transparent 50%),
        radial-gradient(at 50% 50%, var(--mesh-5) 0px, transparent 50%),
        radial-gradient(at 0% 100%, var(--mesh-6) 0px, transparent 50%);
    filter: blur(100px);
    opacity: 0.7;
    animation: fluidMesh 40s ease-in-out infinite alternate;
}

@keyframes fluidMesh {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }

    33% {
        transform: translate(-5%, 5%) rotate(2deg);
    }

    66% {
        transform: translate(5%, -5%) rotate(-2deg);
    }

    100% {
        transform: translate(0, 0) rotate(0deg);
    }
}

.welcome-glow {
    position: absolute;
    top: -60px;
    left: 50%;
    transform: translateX(-50%);
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--color-accent) 0%, transparent 70%);
    opacity: 0.08;
    filter: blur(60px);
    pointer-events: none;
    animation: welcomePulse 4s ease-in-out infinite alternate;
}

@keyframes welcomePulse {
    0% {
        opacity: 0.06;
        transform: translateX(-50%) scale(0.9);
    }

    100% {
        opacity: 0.12;
        transform: translateX(-50%) scale(1.1);
    }
}

.welcome-title {
    font-family: var(--font-family-heading);
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.welcome-gradient-text {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover), #6366f1, var(--color-accent));
    background-size: 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: welcomeGradient 6s ease infinite;
}

@keyframes welcomeGradient {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

.welcome-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    max-width: 480px;
    margin: 0 auto 28px;
    line-height: 1.6;
}

.welcome-chips {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 24px;
}

.welcome-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
    transition: all 0.2s ease;
    animation: chipSlideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.welcome-chip:nth-child(1) {
    animation-delay: 0.15s;
}

.welcome-chip:nth-child(2) {
    animation-delay: 0.25s;
}

.welcome-chip:nth-child(3) {
    animation-delay: 0.35s;
}

.welcome-chip:nth-child(4) {
    animation-delay: 0.45s;
}

.welcome-chip:nth-child(5) {
    animation-delay: 0.55s;
}

.welcome-chip:nth-child(6) {
    animation-delay: 0.65s;
}

@keyframes chipSlideUp {
    0% {
        opacity: 0;
        transform: translateY(12px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.welcome-chip-icon {
    font-size: 1.1rem;
}

.welcome-chip-clickable {
    cursor: pointer;
}

.welcome-chip-clickable:hover {
    border-color: var(--color-accent);
    background-color: var(--color-bg-secondary);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.welcome-chip-clickable:active {
    transform: translateY(0) scale(0.97);
}

.welcome-cta {
    font-size: 0.9rem;
    font-weight: 500;
    margin-top: 8px;
    animation: welcomeFadeIn 1s 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@media (max-width: 768px) {
    .welcome-title {
        font-size: 2rem;
    }

    .welcome-subtitle {
        font-size: 0.95rem;
    }

    .welcome-chip {
        padding: 8px 14px;
        font-size: 0.8rem;
    }
}

body {
    font-family: var(--font-family-body);
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    background-image: radial-gradient(at 0% 0%, hsla(152, 100%, 93%, 0.4) 0, transparent 50%), radial-gradient(at 100% 100%, hsla(210, 100%, 95%, 0.5) 0, transparent 50%);
    background-attachment: fixed;
}

h1,
h2,
h3,
h4,
h5,
h6,
.font-semibold,
.font-bold {
    font-family: var(--font-family-heading) !important;
}

/* Glassmorphism elements — Enhanced */
.glass-panel {
    background: var(--color-sidebar-bg);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-right: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 1px 0 30px rgba(0, 0, 0, 0.04), inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

:root.dark .glass-panel {
    border-right-color: rgba(255, 255, 255, 0.06);
    box-shadow: 1px 0 30px rgba(0, 0, 0, 0.3), inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.glass-header {
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
}

:root.dark .glass-header {
    background: rgba(11, 14, 20, 0.85);
}

/* Premium Ovlera Pulsar Loader */
.ovlera-pulsar {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
    padding: 1rem 0;
    gap: 1rem;
    width: 100%;
}

.pulsar-ring {
    width: 24px;
    height: 24px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pulsar-ring::before,
.pulsar-ring::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid var(--color-accent);
    opacity: 0.8;
    animation: pulsar-ring-pulse 2s cubic-bezier(0.455, 0.03, 0.515, 0.955) infinite;
}


.pulsar-ring::after {
    animation-delay: -0.5s;
}

/* New Animated Logo Loader */
.ovlera-logo-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.ovlera-logo-loader .bar {
    animation: ovlera-bar-animation 1.4s ease-in-out infinite;
    transform-origin: center;
    transition: fill 0.3s ease;
}

/* Staggered animation delays for wave effect */
.ovlera-logo-loader .bar:nth-child(1) {
    animation-delay: -0.8s;
}

.ovlera-logo-loader .bar:nth-child(2) {
    animation-delay: -0.7s;
}

.ovlera-logo-loader .bar:nth-child(3) {
    animation-delay: -0.6s;
}

.ovlera-logo-loader .bar:nth-child(4) {
    animation-delay: -0.5s;
}

.ovlera-logo-loader .bar:nth-child(5) {
    animation-delay: -0.4s;
}

@keyframes ovlera-bar-animation {

    0%,
    100% {
        transform: scaleY(0.4);
        fill: var(--color-accent);
    }

    50% {
        transform: scaleY(1);
        fill: #6366f1;
        /* Premium Indigo */
    }
}

@keyframes pulsar-ring-pulse {
    0% {
        transform: scale(0.1);
        opacity: 0;
    }

    50% {
        opacity: 0.8;
    }

    100% {
        transform: scale(1.2);
        opacity: 0;
    }
}

.pulsar-text {
    font-family: var(--font-family-heading);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    letter-spacing: 0.02em;
    animation: pulsar-text-fade 2s ease-in-out infinite;
}


@keyframes pulsar-heartbeat {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.15);
    }
}

@keyframes pulsar-glow {

    0%,
    100% {
        opacity: 0.2;
        transform: translate(-50%, -50%) scale(0.8);
    }

    50% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1.3);
    }
}

@keyframes pulsar-text-fade {

    0%,
    100% {
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }
}

/* Bot Message Cards — Premium AI Feel */
.bot-message-card {
    background-color: transparent;
    border: none;
    border-radius: 0;
    padding: 0.5rem 0;
    max-width: 100%;
    color: var(--color-text-primary);
    transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.bot-message-card.is-loading {
    border: none;
    background-color: transparent;
    box-shadow: none;
    padding-left: 0.5rem;
    animation: bot-card-breath 2.5s ease-in-out infinite;
}

@keyframes bot-card-breath {

    0%,
    100% {
        transform: scale(1);
        filter: drop-shadow(0 0 10px rgba(0, 0, 0, 0.05));
    }

    50% {
        transform: scale(1.02);
        filter: drop-shadow(0 0 25px rgba(0, 0, 0, 0.08));
    }
}

/* Skeleton Loaders — Premium Shimmer */
.skeleton {
    background: linear-gradient(105deg,
            rgba(226, 232, 240, 0.3) 0%,
            rgba(226, 232, 240, 0.3) 40%,
            rgba(255, 255, 255, 0.8) 50%,
            rgba(226, 232, 240, 0.3) 60%,
            rgba(226, 232, 240, 0.3) 100%);
    background-size: 300% 100%;
    animation: skeleton-shimmer 1.8s ease-in-out infinite;
    border-radius: 8px;
}

@keyframes skeleton-shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

:root.dark .skeleton {
    background: linear-gradient(105deg,
            rgba(23, 28, 38, 0.6) 0%,
            rgba(23, 28, 38, 0.6) 40%,
            rgba(51, 65, 85, 0.5) 50%,
            rgba(23, 28, 38, 0.6) 60%,
            rgba(23, 28, 38, 0.6) 100%);
    background-size: 300% 100%;
}

.skeleton-text {
    height: 12px;
    margin-bottom: 8px;
    width: 100%;
}

.skeleton-text.short {
    width: 60%;
}

.skeleton-chart {
    height: 200px;
    width: 100%;
    border-radius: 12px;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    padding: 12px 20px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    pointer-events: auto;
    animation: toastSlideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    transition: all 0.3s ease;
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateX(20px) scale(0.9);
    }

    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

.toast.fade-out {
    opacity: 0;
    transform: translateY(-10px);
}

.toast-icon {
    font-size: 1.1rem;
}

/* Animations */
@keyframes bounce-slow {

    0%,
    100% {
        transform: translateY(-5%);
        animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
    }

    50% {
        transform: translateY(0);
        animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
    }
}

.animate-bounce-slow {
    animation: bounce-slow 3s infinite;
}

@keyframes messageBoxIn {
    0% {
        opacity: 0;
        transform: translateY(24px) scale(0.96);
    }

    60% {
        opacity: 1;
        transform: translateY(-4px) scale(1.01);
    }

    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.message-item {
    opacity: 1;
    width: 100%;
    max-width: 800px;
    /* Modern centered column */
    margin: 0 auto;
    padding-left: 1rem;
    /* Default spacing */
    padding-right: 1rem;
}

@media (max-width: 768px) {
    .message-item {
        padding-left: 24px;
        /* Gemini-style side corners */
        padding-right: 24px;
    }
}

/* Only animate NEW messages, not history */
.message-item.animate {
    opacity: 0;
    animation: messageBoxIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* --- Modern Bottom Dock (Gemini/ChatGPT Style) --- */
#chat-window {
    position: relative;
    /* Scope absolute children (like the dock) */
}

#input-area {
    position: absolute;
    bottom: 0px;
    left: 0;
    right: 0;
    z-index: 50;
    pointer-events: none;
    /* Let background clicks pass through */
    display: flex;
    flex-direction: column;
    align-items: center;
}

.input-dock-gradient {
    display: none;
    /* User prefers clean bottom without blur */
}

.input-pill-wrapper {
    pointer-events: auto;
    /* Enable input */
    width: 100%;
    max-width: 800px;
    padding: 0 1rem 1rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.input-container-modern {
    width: 100%;
    background-color: var(--color-bg-primary);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    /* Smooth pill */
    padding: 0.5rem 0.5rem;
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

:root.dark .input-container-modern {
    background-color: rgba(15, 19, 24, 0.98);
    /* Solid enough to hide text */
}

/* For Light Mode */
.input-container-modern {
    background-color: rgba(255, 255, 255, 0.98);
}

.input-container-modern:focus-within {
    box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
    border-color: var(--color-accent);
}

.chat-disclaimer {
    margin-top: 8px;
    text-align: center;
    font-size: 11px;
    opacity: 0.6;
    font-weight: 500;
    color: var(--color-text-secondary);
    letter-spacing: 0.01em;
}

@keyframes scaleIn {
    0% {
        opacity: 0;
        transform: scale(0.95);
    }

    100% {
        opacity: 1;
        transform: scale(1);
    }
}

.floating-input {
    animation: scaleIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

button {
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform;
}

button:active:not(:disabled) {
    transform: scale(0.95);
}

.scroll-container::-webkit-scrollbar {
    width: 6px;
}

.scroll-container::-webkit-scrollbar-track {
    background-color: transparent;
}

.scroll-container::-webkit-scrollbar-thumb {
    background-color: rgba(148, 163, 184, 0.3);
    border-radius: 10px;
}

.scroll-container::-webkit-scrollbar-thumb:hover {
    background-color: rgba(148, 163, 184, 0.6);
}

.blinking-cursor {
    display: inline-block;
    width: 8px;
    height: 1.2rem;
    background-color: var(--color-text-secondary);
    animation: blink 1s step-start infinite;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

/* Ovlera thinking dots loader */
.ovlera-loader {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 0;
}

.ovlera-loader span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-accent);
    animation: ovlera-bounce 1.4s infinite ease-in-out both;
}

.ovlera-loader span:nth-child(1) {
    animation-delay: -0.32s;
}

.ovlera-loader span:nth-child(2) {
    animation-delay: -0.16s;
}

.ovlera-loader span:nth-child(3) {
    animation-delay: 0s;
}

@keyframes ovlera-bounce {

    0%,
    80%,
    100% {
        transform: scale(0.4);
        opacity: 0.4;
    }

    40% {
        transform: scale(1);
        opacity: 1;
    }
}

pre {
    background-color: var(--color-bg-primary) !important;
    border-radius: 0.5rem;
    padding: 1rem;
    overflow-x: auto;
    color: var(--color-prose);
    font-size: 0.9rem;
}

.chart-image {
    border-radius: 0.5rem;
    max-width: 100%;
    height: auto;
    margin-top: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.chart-wrapper {
    position: relative;
    display: inline-block;
    margin-top: 1rem;
    max-width: 100%;
}

.download-chart-btn,
.pin-chart-btn {
    background: rgba(0, 0, 0, 0.65);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 6px 12px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 5px;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.chart-actions {
    position: absolute;
    top: 8px;
    right: 8px;
    display: flex;
    gap: 4px;
}

.chart-wrapper:hover .download-chart-btn,
.chart-wrapper:hover .pin-chart-btn {
    opacity: 1;
}

.download-chart-btn:hover,
.pin-chart-btn:hover {
    background: rgba(0, 0, 0, 0.85);
}

/* --- Dashboard: Multi-Sheet --- */
.sheet-wrapper {
    margin-bottom: 24px;
}

.sheet-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-bottom: none;
}

.sheet-header-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sheet-counter {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-accent);
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    padding: 1px 6px;
    letter-spacing: 0.5px;
}

.sheet-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text-primary);
    outline: none;
    padding: 2px 4px;
}

.sheet-name[contenteditable="true"] {
    background: var(--color-bg-primary);
    border-bottom: 2px solid var(--color-accent);
}

.sheet-actions {
    display: flex;
    gap: 4px;
    opacity: 0;
    transition: opacity 0.2s;
}

.sheet-wrapper:hover .sheet-actions {
    opacity: 1;
}

.sheet-actions button {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 14px;
    padding: 2px 4px;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.sheet-actions button:hover {
    opacity: 1;
}

.sheet-canvas {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    position: relative;
}

.grid-stack {
    min-height: 0 !important;
}

.grid-stack-item-content {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}

:root.dark .grid-stack-item-content {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
}

.grid-stack-item:hover .grid-stack-item-content {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.dashboard-widget {
    width: 100%;
    height: 100%;
    position: relative;
    display: flex;
    flex-direction: column;
}

.dashboard-widget img {
    flex: 1;
    object-fit: contain;
    min-height: 0;
}

.widget-remove-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 22px;
    height: 22px;
    background: rgba(239, 68, 68, 0.85);
    color: white;
    border: none;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 10;
}

.grid-stack-item:hover .widget-remove-btn {
    opacity: 1;
}

.widget-remove-btn:hover {
    background: rgba(220, 38, 38, 1);
}

.dashboard-empty-state {
    text-align: center;
    pointer-events: none;
}

.add-sheet-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 1280px;
    padding: 12px;
    border: 2px dashed var(--color-border);
    background: transparent;
    color: var(--color-text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.add-sheet-btn:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.dashboard-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-primary);
}

.dashboard-toolbar button {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.dashboard-toolbar button:hover {
    background: var(--color-bg-tertiary);
}

.dashboard-toolbar button.active {
    background: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
}

.download-file-wrapper {
    margin-top: 0.75rem;
}

.download-file-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background-color: var(--color-accent);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.download-file-btn:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-1px);
}

.download-file-btn:active {
    transform: translateY(0);
}

.prose {
    color: var(--color-prose);
    font-size: var(--chat-font-size);
}

.prose h1,
.prose h2,
.prose h3,
.prose strong {
    color: var(--color-text-primary);
}

.code-block-container {
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    margin-top: 1rem;
}

.code-block-header {
    padding: 0.5rem 1rem;
    cursor: pointer;
    user-select: none;
    font-weight: 500;
    font-size: 0.875rem;
    background-color: var(--color-bg-primary);
    border-top-left-radius: 0.5rem;
    border-top-right-radius: 0.5rem;
}

.code-block-content {
    display: none;
}

/* FIX #5: Moved from chat.js renderHistory() where it was injected as a
   <style> tag on every render, accumulating indefinitely in <head>. */
.hover-bg:hover {
    background-color: var(--color-bg-secondary);
}

/* ===== SIDEBAR SEARCH ===== */
.sidebar-search-input {
    width: calc(100% - 8px);
    padding: 6px 10px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-size: 0.75rem;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.sidebar-search-input::placeholder {
    color: var(--color-text-secondary);
    opacity: 0.5;
}

.sidebar-search-input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--color-accent) 10%, transparent);
}

/* Search toggle icon button */
.sidebar-search-toggle {
    padding: 3px;
    border-radius: 5px;
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    opacity: 0.4;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-search-toggle:hover {
    opacity: 1;
    background-color: var(--color-bg-tertiary);
    color: var(--color-accent);
}

.sidebar-search-toggle.active {
    opacity: 1;
    color: var(--color-accent);
}

/* ===== HISTORY TIMESTAMPS ===== */
.history-timestamp {
    display: block;
    font-size: 0.65rem;
    color: var(--color-text-secondary);
    opacity: 0.6;
    margin-top: 1px;
    line-height: 1;
}

.history-item:hover .history-timestamp,
.history-item[style*="var(--color-accent)"] .history-timestamp {
    opacity: 0.8;
}

/* ===== SKELETON → CONTENT FADE-IN ===== */
.bot-response.fade-in {
    animation: botFadeIn 0.4s ease-out;
}

@keyframes botFadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== RETRY BUTTON ===== */
.retry-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    padding: 8px 18px;
    border-radius: 10px;
    border: 1px solid var(--color-accent);
    background-color: transparent;
    color: var(--color-accent);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.retry-btn:hover {
    background-color: var(--color-accent);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px color-mix(in srgb, var(--color-accent) 30%, transparent);
}

.retry-btn:active {
    transform: translateY(0) scale(0.97);
}

/* ===== RATE LIMIT NOTICE ===== */
.rate-limit-notice {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-radius: 12px;
    background-color: #fef3c7;
    border: 1px solid #fcd34d;
    color: #92400e;
    font-size: 0.85rem;
    font-weight: 500;
    margin-top: 8px;
}

:root.dark .rate-limit-notice {
    background-color: rgba(252, 211, 77, 0.1);
    border-color: rgba(252, 211, 77, 0.3);
    color: #fcd34d;
}

.rate-limit-countdown {
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.suggestion-btn {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-accent);
    border: 1px solid var(--color-border);
}

.suggestion-btn:hover {
    background-color: var(--color-bg-primary);
}

#resizer {
    width: 5px;
    cursor: col-resize;
    background-color: var(--color-border);
    transition: background-color 0.2s;
    flex-shrink: 0;
}

#resizer:hover {
    background-color: var(--color-accent);
}

aside {
    flex-shrink: 0;
    overflow-x: hidden;
}

aside {
    transition: width 0.35s cubic-bezier(0.16, 1, 0.3, 1), padding 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    white-space: nowrap;
    overflow-x: hidden;
    position: relative;
}

/* ===== SIDEBAR TEXT TRANSITION ===== */
aside .sidebar-text {
    display: inline;
    opacity: 1;
    transition: opacity 0.2s ease;
    white-space: nowrap;
}

/* ===== CHEVRON TOGGLE ANIMATION ===== */
.sidebar-chevron {
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.sidebar-toggle-btn {
    transition: all 0.2s ease;
}

.sidebar-toggle-btn:hover .sidebar-chevron {
    color: var(--color-accent) !important;
}

/* ===== COLLAPSED STATE ===== */
aside.is-collapsed {
    width: 70px !important;
    padding: 1.5rem 0.75rem;
}

/* Rotate chevrons 180° */
aside.is-collapsed .sidebar-chevron {
    transform: rotate(180deg);
}

/* Fade out & hide text */
aside.is-collapsed .sidebar-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
    display: none;
}

/* Center the header row and stack vertically in collapsed mode */
aside.is-collapsed .flex.items-center.justify-between {
    flex-direction: column-reverse;
    gap: 1rem;
    justify-content: center;
}

/* Hide logo text, keep icon */
aside.is-collapsed #home-btn {
    justify-content: center;
    padding: 0;
}

/* Ensure toggle button stays in flow when collapsed */
aside.is-collapsed #toggle-sidebar-btn {
    position: static;
}

/* Stack action buttons vertically */
aside.is-collapsed .flex.gap-2.mb-3 {
    flex-direction: column;
    gap: 0.5rem;
    align-items: center;
}

aside.is-collapsed #new-chat-btn,
aside.is-collapsed #new-dashboard-btn {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 12px;
    flex: none;
}

/* Hide sections completely when collapsed */
aside.is-collapsed .sidebar-collapsible {
    display: none;
}

/* Explicitly hide the logo icon */
aside.is-collapsed .sidebar-icon {
    display: none;
}

/* Avatar: center in collapsed sidebar */
aside.is-collapsed #user-profile {
    display: flex;
    justify-content: center;
    border-top: none;
    padding-top: 0;
    margin-top: auto;
}

aside.is-collapsed #avatar-btn {
    margin: 0 auto;
}

/* Hide dropdown and email text when collapsed */
aside.is-collapsed #avatar-dropdown {
    display: none;
}

/* Hide login prompt when collapsed */
aside.is-collapsed #logged-out-view {
    display: none;
}

/* --- Mobile Responsive Styles --- */

/* 1. Ensure transition covers 'transform' for the sliding effect */
aside {
    transition: width 0.3s ease-in-out, transform 0.3s ease-in-out !important;
}

/* --- Mobile "Gemini-Style" Drawer --- */
/* --- Paste this at the VERY BOTTOM of style.css --- */
@media (max-width: 768px) {

    /* 1. Sidebar: Force full stretch */
    aside {
        position: fixed !important;
        top: 0;
        left: 0;
        bottom: 0 !important;
        /* Anchors to bottom */
        height: auto !important;
        /* Let top/bottom handle height */

        width: 85% !important;
        /* Mobile width */
        max-width: 320px;

        z-index: 50;
        background-color: var(--color-sidebar-bg);
        transform: translateX(0);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 10px 0 30px -10px rgba(0, 0, 0, 0.2);
    }

    /* Closed State */
    aside.is-collapsed {
        transform: translateX(-100%);
    }

    /* Force Sidebar Text & Icons to appear (but let JS handle the Login buttons) */
    aside:not(.is-collapsed) .sidebar-text,
    aside:not(.is-collapsed) .sidebar-icon {
        display: flex !important;
    }

    /* Hide Desktop toggle */
    #toggle-sidebar-btn {
        display: none !important;
    }

    /* 2. Main Layout Fixes */
    main {
        padding-top: 64px;
        /* Header space */
        height: 100dvh !important;
        /* Dynamic height */
        overflow: hidden;
        /* Stop main scroll, let chat container scroll */
    }

    /* 3. Input Area: STICK TO BOTTOM (True Full-Width Dock - Gemini Style) */
    #input-area {
        position: fixed !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100% !important;
        z-index: 70 !important;
        background-color: rgba(255, 255, 255, 0.82) !important;
        backdrop-filter: blur(24px) saturate(180%) !important;
        -webkit-backdrop-filter: blur(24px) saturate(180%) !important;
        border-top: 1px solid rgba(0, 0, 0, 0.08) !important;
        border-top-left-radius: 28px !important;
        border-top-right-radius: 28px !important;
        padding: 0 !important;
        margin: 0 !important;
        box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.03) !important;
    }

    :root.dark #input-area {
        background-color: rgba(15, 19, 24, 0.85) !important;
        border-top: 1px solid rgba(255, 255, 255, 0.06) !important;
        box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.2) !important;
    }

    .input-pill-wrapper {
        max-width: 100% !important;
        width: 100% !important;
        border-radius: 0 !important;
        padding: 0 !important;
    }

    .input-container-modern {
        border-radius: 0 !important;
        border: none !important;
        box-shadow: none !important;
        background-color: transparent !important;
        max-width: 100% !important;
        padding: 0.5rem 0.75rem calc(0.5rem + env(safe-area-inset-bottom, 12px)) 0.75rem !important;
        /* Bottom clearance */
    }

    /* 4. Chat Container: prevent hiding behind input */
    #chat-container {
        padding-bottom: 300px !important;
        /* Extra space for input bar and scroll button */
        height: calc(100dvh - 140px);
        /* Adjust scrollable area */
    }

    /* Optional: Add safe area padding for iPhone 'Home' bar */
    #input-area {
        padding-bottom: env(safe-area-inset-bottom, 20px);
    }

    /* 1. Force charts to fit the screen width */
    .js-plotly-plot,
    .plotly-graph-div,
    .chart-container {
        width: 100% !important;
        max-width: 100% !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }

    /* 2. Ensure the message bubble handles overflow gracefully */
    .prose {
        max-width: 100% !important;
        width: 100% !important;
    }

    /* 3. Fix main width to prevent horizontal scrollbar triggers */
    main {
        width: 100% !important;
        /* changed from 100vw to 100% */
        overflow-x: hidden !important;
    }

    /* 4. Hide duplicate "Ovlera" chat header title on mobile */
    #header-title {
        display: none !important;
    }

    /* 5. Prevent horizontal scrolling in chat messages */
    #chat-container {
        overflow-x: hidden !important;
    }

    .bot-response,
    .prose {
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        word-break: break-word !important;
        max-width: 100% !important;
    }

    /* 6. Code blocks scroll internally instead of overflowing page */
    .code-block-container {
        max-width: 100% !important;
        overflow-x: auto !important;
    }

    .code-block-content pre {
        white-space: pre-wrap !important;
        word-break: break-all !important;
        max-width: 100% !important;
    }

    /* 7. Tables scroll horizontally within container */
    table {
        display: block;
        overflow-x: auto;
        max-width: 100%;
    }

    /* 8. Chat header: stack items vertically on mobile */
    #chat-header {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    /* 10. Refine Scroll Button Offset */
    #scroll-to-bottom-btn {
        bottom: calc(100% + 20px) !important;
        /* Positioned exactly relative to the top of the input area, so it moves up as text grows */
        z-index: 200 !important;
        width: 44px;
        height: 44px;
    }

    .input-dock-gradient {
        height: 120px !important;
        /* Lower height on mobile */
        opacity: 0.8 !important;
    }

    .chat-disclaimer {
        display: none !important;
    }
}

/* ============================================
   FILES PANEL
   ============================================ */
.files-panel {
    display: none;
    /* Controlled by show/hide logic */
}

.files-panel-inner {
    padding: 12px 16px;
}

/* Asset Tabs Styling */
.asset-tab {
    color: var(--color-text-secondary);
    background: transparent;
    border: none;
    cursor: pointer;
}

.asset-tab:hover {
    color: var(--color-text-primary);
    background: rgba(0, 0, 0, 0.05);
}

.dark .asset-tab:hover {
    background: rgba(255, 255, 255, 0.05);
}

.asset-tab.active {
    background: var(--color-accent) !important;
    color: white !important;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}

.asset-tab-panel.hidden {
    display: none;
}

.files-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.file-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-radius: 12px;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    transition: all 0.2s ease;
}

.file-row:hover {
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

.file-row-info {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 0;
}

.file-row-icon {
    font-size: 1rem;
    flex-shrink: 0;
}

.file-row-name {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-row-meta {
    font-size: 0.7rem;
    color: var(--color-text-secondary);
    flex-shrink: 0;
    margin-left: 8px;
}

.file-row-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: 8px;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.file-row:hover .file-row-actions {
    opacity: 1;
}

.file-action-btn {
    padding: 4px 8px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 0.7rem;
    font-weight: 600;
    transition: background-color 0.15s ease;
    display: flex;
    align-items: center;
    gap: 3px;
    color: var(--color-text-accent);
    background-color: var(--color-bg-tertiary);
}

.file-action-btn:hover {
    background-color: var(--color-accent);
    color: white;
}

.file-action-btn.remove {
    color: #dc2626;
    background-color: #fef2f2;
}

.file-action-btn.remove:hover {
    background-color: #dc2626;
    color: white;
}



.files-section+.files-section {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--color-border);
}

.files-empty {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    font-style: italic;
    padding: 4px 0;
}

#chat-window {
    background-color: var(--color-bg-secondary);
}

/* ===== MODERN CHAT HEADER ===== */
.chat-header-modern {
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: none;
    box-shadow: 0 1px 0 var(--color-border), 0 4px 12px rgba(0, 0, 0, 0.03);
}

:root.dark .chat-header-modern {
    background: rgba(11, 14, 20, 0.85);
    box-shadow: 0 1px 0 var(--color-border), 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* ===== MODAL GLASSMORPHISM ===== */
#settings-modal>div,
#auth-modal>div,
#delete-modal>div,
#summary-modal>div,
#pin-modal>div {
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

:root.dark #settings-modal>div,
:root.dark #auth-modal>div,
:root.dark #delete-modal>div,
:root.dark #summary-modal>div,
:root.dark #pin-modal>div {
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.04);
}

/* Modal backdrop overlay */
#settings-modal,
#auth-modal,
#delete-modal,
#summary-modal,
#pin-modal {
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

:root.dark #settings-modal,
:root.dark #auth-modal,
:root.dark #delete-modal,
:root.dark #summary-modal,
:root.dark #pin-modal {
    background: rgba(0, 0, 0, 0.6);
}

.header-action-btn {
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.header-action-btn:hover {
    border-color: var(--color-accent) !important;
    background-color: var(--color-bg-secondary) !important;
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.08);
}

.header-action-btn:active {
    transform: translateY(0) scale(0.97);
}

#chat-header {
    z-index: 10;
}

#input-area {
    background-color: transparent !important;
    padding: 0px 24px 10px 24px;
    /* Tight top padding, floating effect */
}

.chat-disclaimer {
    color: #6b7280;
    /* Subtle slate gray matching ChatGPT style */
    margin-top: 12px;
    font-size: 0.75rem;
    font-weight: 400;
    text-align: center;
    width: 100%;
}

:root.dark .chat-disclaimer {
    color: #9ca3af;
}

/* --- Chat Input Area Refinements --- */
#add-data-label {
    display: none;
    /* Controlled by JS .hidden class */
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background-color 0.2s ease, transform 0.1s ease;
    flex-shrink: 0;
}

#add-data-label:not(.hidden) {
    display: flex;
    align-items: center;
    justify-content: center;
}

#add-data-label:hover {
    background-color: var(--color-bg-tertiary);
    transform: scale(1.05);
}

#add-data-label:active {
    transform: scale(0.95);
}

#add-data-label svg {
    color: var(--color-text-accent);
}

/* ===== MODERN CHAT INPUT ===== */
.input-container-modern {
    display: flex;
    flex-direction: column;
    position: relative;
    border-radius: 1.5rem;
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-accent);
    padding: 0.5rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    max-width: 850px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
    min-height: 56px;
}

.input-container-modern:focus-within {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08), 0 0 0 2px color-mix(in srgb, var(--color-accent) 10%, transparent);
    border-color: var(--color-accent);
}

:root.dark .input-container-modern {
    background-color: var(--color-bg-secondary);
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.25);
    border: 1px solid color-mix(in srgb, var(--color-accent) 45%, transparent);
}

:root.dark .input-container-modern:focus-within {
    border-color: var(--color-accent);
    box-shadow: 0 0 20px color-mix(in srgb, var(--color-accent) 12%, transparent), 0 0 0 1px color-mix(in srgb, var(--color-accent) 25%, transparent);
}

/* === DARK MODE: Premium glow for active chat items === */
.history-item.is-active {
    background-color: var(--color-accent) !important;
    color: white !important;
}

:root.dark .history-item.is-active {
    background-color: color-mix(in srgb, var(--color-accent) 12%, transparent) !important;
    color: var(--color-text-primary) !important;
    border: 1px solid color-mix(in srgb, var(--color-accent) 40%, transparent);
    box-shadow: 0 0 15px color-mix(in srgb, var(--color-accent) 10%, transparent);
}

.history-item.hover-bg:hover {
    background-color: var(--color-bg-tertiary) !important;
}

:root.dark .history-item.hover-bg:hover {
    background-color: color-mix(in srgb, var(--color-accent) 5%, transparent) !important;
    border: 1px solid color-mix(in srgb, var(--color-accent) 15%, transparent);
}

/* === DARK MODE: Premium glow for user message bubbles === */
.user-message-bubble {
    background-color: var(--color-accent) !important;
    color: white !important;
}

:root.dark .user-message-bubble {
    background: linear-gradient(135deg, color-mix(in srgb, var(--color-accent) 12%, transparent), color-mix(in srgb, var(--color-accent) 6%, transparent)) !important;
    border: 1px solid color-mix(in srgb, var(--color-accent) 30%, transparent);
    box-shadow: 0 0 16px color-mix(in srgb, var(--color-accent) 6%, transparent);
    color: var(--color-text-primary) !important;
}

.main-input-field {
    color: var(--color-text-primary);
}

.main-input-field::placeholder {
    color: var(--color-text-secondary);
    opacity: 0.5;
}

.input-action-btn {
    color: var(--color-text-secondary);
    transition: all 0.2s ease;
}

.input-action-btn:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-accent);
    transform: scale(1.05);
}

/* Google Sheets Import UI */
.gsheets-popover {
    position: absolute;
    bottom: calc(100% + 12px);
    left: 0;
    width: 280px;
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 1rem;
    padding: 1rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    z-index: 100;
    animation: gsheetsPopIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

:root.dark .gsheets-popover {
    background-color: var(--color-bg-secondary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.gsheets-popover-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    margin-bottom: 4px;
    font-size: 0.875rem;
    color: var(--color-text-primary);
}

.gsheets-popover-hint {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-bottom: 12px;
}

.gsheets-popover-input-row {
    display: flex;
    gap: 8px;
}

#gsheets-url-input {
    flex: 1;
    min-width: 0;
    font-size: 0.75rem;
    padding: 8px 12px;
    border-radius: 0.75rem;
    border: 1px solid var(--color-border);
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

#gsheets-url-input:focus {
    outline: none;
    border-color: var(--color-accent);
}

#gsheets-import-btn {
    background-color: var(--color-accent);
    color: white;
    padding: 8px;
    border-radius: 0.75rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

#gsheets-import-btn:hover {
    background-color: var(--color-accent-hover);
    transform: translateY(-1px);
}

.gsheets-status {
    margin-top: 8px;
    font-size: 0.7rem;
    font-weight: 600;
}

.gsheets-status.error {
    color: #ef4444;
}

.gsheets-status.success {
    color: var(--color-accent);
}

@keyframes gsheetsPopIn {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}


.send-btn-modern {
    background-color: var(--color-accent);
    color: white;
    padding: 0.6rem;
    border-radius: 1rem;
    margin-left: 0.5rem;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 2px 8px color-mix(in srgb, var(--color-accent) 30%, transparent);
}

.send-btn-modern:hover:not(:disabled) {
    background-color: var(--color-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px color-mix(in srgb, var(--color-accent) 40%, transparent);
}

.send-btn-modern:active:not(:disabled) {
    transform: scale(0.95);
}

#user-input {
    max-height: 200px;
    padding: 8px 12px 4px 12px;
    line-height: 1.5;
    transition: none;
    /* Instant height change */
    width: 100%;
}

#input-char-count {
    transition: all 0.2s ease;
    background-color: var(--color-bg-primary);
    padding: 2px 6px;
    border-radius: 4px;
}

#input-char-count.limit-reached {
    color: #ef4444 !important;
    opacity: 1 !important;
    background-color: #fee2e2;
}

.send-btn-modern:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    box-shadow: none;
}

/* Settings Tab Modernization */
/* New themed hover and responsive settings */
#dropdown-settings-btn:hover {
    background-color: var(--color-bg-tertiary) !important;
}

#logout-btn:hover {
    background-color: #fef2f2 !important;
}

:root.dark #logout-btn:hover {
    background-color: rgba(220, 38, 38, 0.1) !important;
}

/* Settings Modal Responsive Styles */
@media (max-width: 768px) {
    #settings-modal>div {
        flex-direction: column !important;
        max-height: 90vh !important;
        width: 95vw !important;
    }

    #settings-modal .shrink-0 {
        width: 100% !important;
        border-right: none !important;
        border-bottom: 1px solid var(--color-border);
        padding: 0.75rem !important;
    }

    #settings-modal h3 {
        margin-bottom: 0.75rem !important;
        font-size: 1rem !important;
    }

    #settings-modal nav {
        flex-direction: row !important;
        overflow-x: auto;
        padding-bottom: 0.5rem;
        gap: 0.5rem !important;
        scrollbar-width: none;
    }

    #settings-modal nav::-webkit-scrollbar {
        display: none;
    }

    .settings-tab {
        white-space: nowrap !important;
        flex-shrink: 0 !important;
        padding: 0.5rem 0.75rem !important;
        font-size: 0.75rem !important;
    }

    #settings-modal .flex-1.p-6 {
        padding: 1.25rem !important;
        overflow-y: auto !important;
    }

    .settings-panel h4 {
        font-size: 0.9rem !important;
    }
}

.settings-tab-btn {
    transition: all 0.2s ease;
}

.settings-tab-btn:hover {
    background-color: var(--color-bg-tertiary) !important;
}

.settings-tab-btn.active,
.settings-tab-btn[aria-selected="true"] {
    background-color: var(--color-bg-tertiary) !important;
    color: var(--color-accent) !important;
}

.settings-tab-btn.active svg,
.settings-tab-btn[aria-selected="true"] svg {
    color: var(--color-accent) !important;
}

/* Glassmorphism utility */
.glass-input {
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

/* Sidebar Profile Improvements */
#sidebar-profile-card {
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

#sidebar-profile-card:hover {
    background-color: var(--color-bg-tertiary);
}

#user-tier-badge {
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    transition: all 0.2s ease;
}

#sidebar-user-email {
    letter-spacing: -0.01em;
}

/* Ensure sidebar text stays visible in desktop open state */
aside:not(.is-collapsed) .sidebar-text {
    opacity: 1;
    transition: opacity 0.2s ease;
}

/* Google Sign-In Button Premium Styles */
#google-signin-btn {
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

#google-signin-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border-color: #cbd5e1;
}

#google-signin-btn:active {
    transform: translateY(0) scale(0.98);
}

:root.dark #google-signin-btn {
    background-color: #1e293b;
    border-color: #334155;
    color: #f1f5f9;
}

:root.dark #google-signin-btn:hover {
    background-color: #334155;
    border-color: #475569;
}

/* OR Separator Dark Mode */
:root.dark span[style*="background-color: var(--color-bg-primary)"] {
    background-color: var(--color-bg-primary) !important;
}

/* Auth Modal: Terms of Service Checkbox */
#auth-tos-checkbox {
    cursor: pointer;
    accent-color: var(--color-accent);
}

#auth-tos-container label a {
    transition: color 0.2s ease;
}

#auth-tos-container label a:hover {
    color: var(--color-accent-hover) !important;
}

/* ===== HISTORY ITEM HOVER GLOW ===== */
.history-item {
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid transparent;
    border-radius: 0.75rem;
}

.history-item.hover-bg:hover {
    border-color: color-mix(in srgb, var(--color-accent) 20%, transparent);
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--color-accent) 8%, transparent);
}

/* ===== FILE ROW HOVER LIFT ===== */
.file-row {
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.file-row:hover {
    transform: translateY(-1px);
    border-color: color-mix(in srgb, var(--color-accent) 30%, transparent);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}

/* ===== SMOOTH LINK TRANSITIONS ===== */
a {
    transition: color 0.2s ease, opacity 0.2s ease;
}

/* ===== WELCOME CHIP HOVER GLOW ===== */
.welcome-chip-clickable:hover {
    box-shadow: 0 4px 20px color-mix(in srgb, var(--color-accent) 15%, transparent);
}

/* ===== TOAST GLASSMORPHISM ===== */
.toast {
    backdrop-filter: blur(16px) saturate(150%);
    -webkit-backdrop-filter: blur(16px) saturate(150%);
}

:root.dark .toast {
    background: rgba(15, 19, 24, 0.9);
    border-color: rgba(255, 255, 255, 0.06);
}

/* ===== SMOOTH SCROLLBAR (Firefox) ===== */
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(148, 163, 184, 0.3) transparent;
}

/* --- FINAL GEMINI LAYOUT REPAIRS --- */
#chat-window {
    position: relative !important;
}

#chat-container {
    padding-top: 48px !important;
    /* Space between header and first message */
    padding-bottom: 300px !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    scroll-padding-bottom: 120px !important;
}

#input-area {
    width: 100% !important;
    position: absolute !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    padding: 0 24px 4px 24px !important;
    /* Grounded to the absolute bottom */
}

.input-dock-gradient {
    height: 180px !important;
}

.input-pill-wrapper {
    max-width: 800px !important;
}


/* --- Scroll to Bottom Button (ChatGPT Style) --- */
#scroll-to-bottom-btn {
    position: absolute;
    bottom: calc(100% + 15px);
    /* Dynamic: stays exactly above the input area even if it grows */
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    z-index: 200;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    cursor: pointer;
    color: var(--color-accent);
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

#scroll-to-bottom-btn.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

#scroll-to-bottom-btn:hover {
    background: var(--color-bg-tertiary);
    transform: translateX(-50%) translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

#scroll-to-bottom-btn svg {
    width: 20px;
    height: 20px;
    stroke-width: 3;
}


/* --- SCROLL BUTTON VISIBILITY FIX --- */
#input-area {
    pointer-events: none !important;
}

.input-pill-wrapper {
    position: relative !important;
    pointer-events: auto !important;
}

#scroll-to-bottom-btn {
    pointer-events: auto !important;
    z-index: 200 !important;
    bottom: calc(100% + 15px) !important;
}

/* --- Responsive Table Horizontal Scroll (Swipe for Wide Data) --- */
.table-container {
    position: relative;
    margin: 1rem 0;
    border-radius: 12px;
    border: 1px solid var(--color-border);
    background-color: var(--color-bg-primary);
    /* Removed overflow:hidden to prevent tooltip clipping */
}

.table-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table-wrapper::-webkit-scrollbar {
    height: 6px;
}

.table-wrapper::-webkit-scrollbar-track {
    background: transparent;
}

.table-wrapper::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.2);
    border-radius: 10px;
}

.table-wrapper::-webkit-scrollbar-thumb:hover {
    background: rgba(148, 163, 184, 0.4);
}

.table-wrapper table {
    margin: 0 !important;
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    min-width: 600px;
    /* Force minimum width to ensure horizontal scroll on mobile */
}

.table-wrapper th,
.table-wrapper td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    white-space: nowrap;
    /* Ensure text doesn't wrap so scroll is forced */
}

.table-wrapper th {
    background-color: var(--color-bg-tertiary);
    font-weight: 600;
}

.table-wrapper tr:last-child td {
    border-bottom: none;
}

/* --- Bot Message Action Bar (Copy All) --- */
.message-actions {
    display: flex;
    justify-content: flex-start;
    /* Move to left side */
    gap: 8px;
    margin-top: 12px;
    padding-top: 8px;
    border-top: 1px solid color-mix(in srgb, var(--color-border) 20%, transparent);
    opacity: 0.8;
    /* More visible by default */
    transition: opacity 0.3s ease;
}

.bot-message-card:hover .message-actions {
    opacity: 1;
}

/* --- Global Copy Button Styling --- */
.copy-response-btn,
.copy-code-btn,
.copy-table-btn {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    padding: 8px;
    border-radius: 9px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.copy-response-btn,
.delete-response-btn {
    padding: 12px;
    /* Extra large for the main response button */
    border-radius: 12px;
}

.delete-response-btn:hover {
    background-color: #ef4444 !important;
    color: white !important;
    border-color: #ef4444 !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
}

.copy-response-btn:hover,
.copy-code-btn:hover,
.copy-table-btn:hover {
    background: var(--color-accent);
    color: white;
    border-color: var(--color-accent);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px color-mix(in srgb, var(--color-accent) 25%, transparent);
}

.copy-response-btn:active,
.copy-code-btn:active,
.copy-table-btn:active {
    transform: scale(0.95);
}

/* --- Code & Table Wrapper Overlays --- */
.code-container,
.table-container {
    position: relative;
}

.copy-code-btn,
.copy-table-btn {
    position: absolute;
    top: 8px;
    right: 6px;
    /* Moved further right */
    z-index: 10;
    opacity: 0.6;
    /* Visible by default */
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    background: color-mix(in srgb, var(--color-bg-secondary) 85%, transparent);
    border: 1px solid var(--color-border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.code-container:hover .copy-code-btn,
.table-container:hover .copy-table-btn {
    opacity: 1;
}

/* --- PREMIUM CSS TOOLTIPS --- */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    background: #1e293b;
    color: white;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 2000;
}

:root.dark [data-tooltip]::after {
    background: #f1f5f9;
    color: #0f172a;
}

[data-tooltip]:hover::after {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Specific tooltip position for top-right buttons */
.copy-code-btn[data-tooltip]::after,
.copy-table-btn[data-tooltip]::after {
    bottom: auto;
    top: calc(100% + 8px);
    transform: translateX(-50%) translateY(-4px);
}

.copy-code-btn[data-tooltip]:hover::after,
.copy-table-btn[data-tooltip]:hover::after {
    transform: translateX(-50%) translateY(0);
}

/* ===== MODEL SELECTOR (INPUT PILL) ===== */
.model-selector-container {
    position: relative;
    display: flex;
    align-items: center;
    margin-right: 4px;
}

.model-menu-title {
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    padding: 8px 12px 4px 12px;
    opacity: 0.6;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 4px;
}

#model-selector-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 10px;
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid var(--color-border);
    background-color: var(--color-bg-primary);
    color: var(--color-text-secondary);
    white-space: nowrap;
    cursor: pointer;
}

#model-selector-btn:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-accent);
    color: var(--color-text-primary);
    transform: translateY(-1px);
}

#model-selector-btn svg {
    transition: transform 0.2s ease;
}

#model-selector-btn.open svg {
    transform: rotate(180deg);
}

#model-selector-menu {
    position: absolute;
    bottom: calc(100% + 12px);
    left: 0;
    width: 240px;
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 18px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
    padding: 6px;
    z-index: 2000;
    transform-origin: bottom left;
    backdrop-filter: blur(12px);
}

.model-opt {
    width: 100%;
    text-align: left;
    padding: 10px 14px;
    border-radius: 12px;
    transition: all 0.15s ease;
    display: flex;
    flex-direction: column;
    gap: 2px;
    border: 1px solid transparent;
    cursor: pointer;
    background: transparent;
}

.model-opt:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-border);
}

.model-opt.active {
    background-color: rgba(16, 185, 129, 0.08);
    border-color: var(--color-accent);
}

.model-opt-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.model-opt-name {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.model-tag {
    font-size: 0.6rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 2px 6px;
    border-radius: 6px;
    margin-left: 8px;
}

.model-tag.stable {
    background-color: #f0fdf4;
    color: #16a34a;
    border: 1px solid #bbf7d0;
}

.model-tag.fast {
    background-color: #eff6ff;
    color: #2563eb;
    border: 1px solid #dbeafe;
}

.model-tag.power {
    background-color: #fef2f2;
    color: #dc2626;
    border: 1px solid #fee2e2;
}

.model-tag.preview {
    background-color: #faf5ff;
    color: #9333ea;
    border: 1px solid #f3e8ff;
}

:root.dark .model-tag {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

:root.dark .model-tag.stable {
    color: #4ade80;
}

:root.dark .model-tag.fast {
    color: #60a5fa;
}

:root.dark .model-tag.power {
    color: #f87171;
}

:root.dark .model-tag.preview {
    color: #c084fc;
}

/* Entrance Animation */
.animate-pop-in {
    animation: popIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes popIn {
    0% {
        opacity: 0;
        transform: translateY(12px) scale(0.92);
    }

    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 640px) {

    /* Full model names allowed on mobile now */
    .input-area-container {
        width: 100%;
        border-radius: 0;
    }

    .disclaimer {
        display: none;
    }
}

/* ===== SHARE MODAL ===== */

/* Smooth entrance animation */
#share-modal>div {
    animation: shareModalIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes shareModalIn {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.96);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Export cards — accent border glow on hover */
#share-pdf-btn,
#share-md-btn {
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

#share-pdf-btn:hover {
    border-color: #ef4444 !important;
    box-shadow: 0 4px 20px rgba(239, 68, 68, 0.15);
}

#share-md-btn:hover {
    border-color: #3b82f6 !important;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.15);
}

/* Export card icon containers — scale on hover */
#share-pdf-btn:hover>div:first-child,
#share-md-btn:hover>div:first-child {
    transform: scale(1.1);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Social icon circles — colored glow on hover */
#share-native-btn:hover>div:first-child {
    box-shadow: 0 4px 18px rgba(16, 185, 129, 0.4);
}

#share-whatsapp-btn:hover>div:first-child {
    box-shadow: 0 4px 18px rgba(37, 211, 102, 0.4);
}

#share-twitter-btn:hover>div:first-child {
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.3);
}

:root.dark #share-twitter-btn:hover>div:first-child {
    box-shadow: 0 4px 18px rgba(255, 255, 255, 0.25);
}

#share-linkedin-btn:hover>div:first-child {
    box-shadow: 0 4px 18px rgba(10, 102, 194, 0.4);
}

/* Social icon circles — smooth scale */
#share-native-btn>div:first-child,
#share-whatsapp-btn>div:first-child,
#share-twitter-btn>div:first-child,
#share-linkedin-btn>div:first-child {
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

#share-native-btn:hover>div:first-child,
#share-whatsapp-btn:hover>div:first-child,
#share-twitter-btn:hover>div:first-child,
#share-linkedin-btn:hover>div:first-child {
    transform: scale(1.08);
}

/* Social buttons — subtle active press */
#share-native-btn:active>div:first-child,
#share-whatsapp-btn:active>div:first-child,
#share-twitter-btn:active>div:first-child,
#share-linkedin-btn:active>div:first-child {
    transform: scale(0.95);
}

/* ===== PRINT STYLES (BRUTAL UNLOCK) ===== */
@media print {

    /* Nuclear Reset: Force ALL containers to unlock */
    html,
    body,
    #app-container,
    #main-content,
    #chat-window,
    main,
    section,
    div:has(> #chat-container),
    .flex-grow {
        height: auto !important;
        min-height: 0 !important;
        max-height: none !important;
        overflow: visible !important;
        display: block !important;
        position: static !important;
        visibility: visible !important;
    }

    #sidebar,
    #left-sidebar,
    .sidebar,
    .input-dock,
    #input-dock,
    .input-area,
    .chat-header button,
    .chat-header .flex,
    #share-modal,
    .modal-backdrop,
    .fixed,
    .absolute,
    .toast-container,
    .message-actions,
    #scroll-anchor,
    .retry-btn,
    .copy-btn,
    .scroll-to-bottom-btn {
        display: none !important;
        height: 0 !important;
        width: 0 !important;
        overflow: hidden !important;
    }

    #chat-container {
        display: block !important;
        height: auto !important;
        min-height: 100% !important;
        overflow: visible !important;
        padding: 40px !important;
        margin: 0 !important;
        background: white !important;
        width: 100% !important;
    }

    @page {
        size: auto;
        margin: 15mm;
    }

    /* Professional Message Blocks — Flexible for Multi-page */
    .bot-message-card {
        background: transparent !important;
        border: none !important;
        border-bottom: 2px solid #f3f4f6 !important;
        /* Subtle separator between exchanges */
        border-radius: 0 !important;
        padding: 30px 0 !important;
        margin-bottom: 0 !important;
        page-break-inside: auto !important;
        break-inside: auto !important;
        box-shadow: none !important;
        width: 100% !important;
    }

    .user-message-bubble {
        background: #f9fafb !important;
        color: #111 !important;
        border: 1px solid #e5e7eb !important;
        border-radius: 12px !important;
        padding: 15px 20px !important;
        margin-top: 40px !important;
        margin-bottom: 10px !important;
        max-width: 100% !important;
        width: fit-content !important;
        margin-left: 0 !important;
        /* Align to left for formal report style */
        page-break-inside: avoid;
        break-inside: avoid;
        font-weight: 600 !important;
    }

    .user-message-bubble::before {
        content: "QUERY:";
        display: block;
        font-size: 10px;
        color: #6b7280;
        margin-bottom: 4px;
        letter-spacing: 0.05em;
    }

    /* Text & Section Clarity */
    .prose,
    p,
    span,
    h1,
    h2,
    h3,
    h4,
    li {
        color: #000 !important;
        line-height: 1.6 !important;
        page-break-inside: auto;
    }

    /* Keep individual elements from breaking in half */
    p,
    li,
    h1,
    h2,
    h3,
    h4,
    pre,
    .chart-image,
    table {
        page-break-inside: avoid;
        break-inside: avoid;
    }

    pre,
    code {
        background: #f8fafc !important;
        border: 1px solid #e2e8f0 !important;
        padding: 15px !important;
        border-radius: 8px !important;
        font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace !important;
        font-size: 12px !important;
        margin: 15px 0 !important;
    }

    /* Charts/Images — Make them distinct sections */
    img,
    .chart-image {
        display: block !important;
        max-width: 90% !important;
        margin: 30px auto !important;
        border: 1px solid #e5e7eb !important;
        border-radius: 12px !important;
        padding: 10px !important;
    }

    /* Tables */
    table {
        width: 100% !important;
        border-collapse: collapse !important;
        margin: 20px 0 !important;
    }

    th,
    td {
        border: 1px solid #e5e7eb !important;
        padding: 10px !important;
        text-align: left !important;
    }

    th {
        background: #f9fafb !important;
        font-weight: bold !important;
    }

    /* Add a Branding Header to the Print */
    #chat-container::before {
        content: "Ovlera — Advanced AI Data Analyst Report";
        display: block;
        text-align: center;
        font-size: 16px;
        font-weight: 800;
        margin-bottom: 50px;
        color: #059669;
        padding-bottom: 20px;
        border-bottom: 1px solid #e5e7eb;
    }
}

/* ===== Read-Only Mode Shield ===== */
body.read-only-mode aside.sidebar,
body.read-only-mode #export-summary-btn,
body.read-only-mode #share-chat-btn,
body.read-only-mode .message-actions,
body.read-only-mode #add-data-label,
body.read-only-mode .model-selector-container,
body.read-only-mode #send-btn {
    display: none !important;
}

body.read-only-mode main {
    padding-left: 0 !important;
    padding-right: 0 !important;
    width: 100% !important;
}

body.read-only-mode #chat-container {
    width: 100% !important;
    margin: 0 auto !important;
    padding: 0 16px 80px 16px !important;
    overflow-x: hidden !important;
    display: flex !important;
    flex-direction: column !important;
}

body.read-only-mode .message-item {
    max-width: 100% !important;
    width: 100% !important;
}

body.read-only-mode .user-message-bubble,
body.read-only-mode .bot-message-card {
    max-width: 100% !important;
    word-wrap: break-word !important;
}

/* Desktop-only centering and max-width */
@media (min-width: 768px) {
    body.read-only-mode #chat-container {
        max-width: 900px !important;
        padding-left: 0 !important;
        padding-right: 0 !important;
    }
}

/* ===== Shared Button Active State (Global) ===== */
#share-chat-btn.is-shared {
    background-color: var(--color-accent) !important;
    color: white !important;
    border-color: var(--color-accent) !important;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2) !important;
    transform: scale(1.05);
}

/* ===== SHEET SELECTOR MODAL ===== */
.workbook-group {
    margin-bottom: 24px;
}

.workbook-heading {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 4px;
    font-size: 13px;
    font-weight: 700;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 12px;
}

.workbook-heading svg {
    color: var(--color-accent);
}

.sheet-item {
    display: flex;
    align-items: center;
    padding: 14px 18px;
    border-radius: 16px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    gap: 12px;
    margin-left: 12px;
    /* Indentation for PowerBI style */
    position: relative;
}

.sheet-item::before {
    content: '';
    position: absolute;
    left: -12px;
    top: 50%;
    width: 12px;
    height: 1px;
    background: var(--color-border);
    opacity: 0.5;
}

.sheet-item:hover {
    background: color-mix(in srgb, var(--color-accent) 5%, var(--color-bg-tertiary));
    border-color: color-mix(in srgb, var(--color-accent) 30%, var(--color-border));
    transform: translateX(4px);
}

.sheet-item.selected {
    background: color-mix(in srgb, var(--color-accent) 10%, var(--color-bg-tertiary));
    border-color: var(--color-accent);
    box-shadow: 0 4px 20px -8px var(--color-accent);
}

.sheet-item-checkbox {
    width: 20px;
    height: 20px;
    border-radius: 6px;
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.selected .sheet-item-checkbox {
    background: var(--color-accent);
    border-color: var(--color-accent);
}

.sheet-item-checkbox svg {
    opacity: 0;
    transform: scale(0.5);
    transition: all 0.2s ease;
}

.selected .sheet-item-checkbox svg {
    opacity: 1;
    transform: scale(1);
}

.sheet-item-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.custom-scrollbar::-webkit-scrollbar {
    width: 6px;
}

.custom-scrollbar::-webkit-scrollbar-track {
    background: transparent;
}

.custom-scrollbar::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 10px;
}

.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-secondary);
}

#share-chat-btn.is-shared svg {
    color: white !important;
}