/*
   DataPlus RAG Chatbot - Modern Teal Design
   Glass-morphism with animated background
   Clean, professional, modern design
*/

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=DM+Sans:wght@400;500&display=swap');

/* ==================== 1. VARIABLES & RESET ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* DataPlus Brand Colors - Teal Theme */
    --teal: #298E8B;
    --teal-bright: #2CA4A0;
    --teal-light: #84C0BC;
    --orange: #E7834C;
    --dark: #1C2526;

    /* Legacy aliases for compatibility */
    --primary-blue: var(--teal);
    --primary-blue-light: var(--teal-bright);
    --primary-blue-dark: #227775;
    --primary-blue-darker: #1a5a58;

    /* Accent Colors */
    --accent-blue: var(--teal-bright);
    --accent-light: var(--teal-light);

    /* Admin/Dark Colors */
    --admin-dark: var(--dark);
    --admin-gray: #374151;
    --admin-gray-dark: #1f2937;

    /* Status Colors */
    --success: #059669;
    --success-light: #10b981;
    --error: #dc2626;
    --error-light: #ef4444;
    --error-lighter: #fef2f2;
    --error-dark: #b91c1c;
    --warning: var(--orange);

    /* Background Colors */
    --bg-page: #f3f5f4;
    --bg-light: #eef3f2;
    --bg-code: #f1f5f9;
    --bg-code-border: #cbd5e1;

    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #5a6b6c;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: var(--dark);

    /* Opacity & Overlay Colors */
    --overlay-white-10: rgba(255, 255, 255, 0.1);
    --overlay-white-15: rgba(255, 255, 255, 0.15);
    --overlay-white-20: rgba(255, 255, 255, 0.2);
    --overlay-white-70: rgba(255, 255, 255, 0.7);
    --overlay-black-05: rgba(0, 0, 0, 0.05);
    --overlay-black-10: rgba(0, 0, 0, 0.1);

    /* Teal Overlays */
    --teal-overlay-04: rgba(42, 164, 160, 0.04);
    --teal-overlay-08: rgba(42, 164, 160, 0.08);
    --teal-overlay-12: rgba(42, 142, 139, 0.12);
    --teal-border: rgba(42, 142, 139, 0.15);

    /* Typography */
    --font-primary: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Consolas', 'Monaco', 'Courier New', monospace;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Shadows - Glass-morphism style */
    --shadow-sm: 0 1px 3px rgba(28, 37, 38, 0.04);
    --shadow-md: 0 4px 12px rgba(28, 37, 38, 0.06);
    --shadow-lg: 0 4px 24px rgba(28, 37, 38, 0.06), 0 1px 3px rgba(28, 37, 38, 0.04);

    /* Border Radius - Modern rounded look */
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
}

body {
    font-family: var(--font-primary);
    background: var(--bg-page);
    color: var(--gray-900);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* ==================== ANIMATED BACKGROUND ==================== */
.bg-animated {
    position: fixed;
    inset: 0;
    background: linear-gradient(145deg, #eef3f2 0%, #f3f5f4 40%, #f0f2f1 100%);
    z-index: 0;
    pointer-events: none;
}

.bg-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: drift 12s ease-in-out infinite;
}

.bg-blob-1 {
    width: 500px;
    height: 500px;
    background: rgba(42, 164, 160, 0.08);
    top: -10%;
    left: -5%;
    animation-duration: 14s;
}

.bg-blob-2 {
    width: 400px;
    height: 400px;
    background: rgba(132, 192, 188, 0.07);
    bottom: -10%;
    right: -5%;
    animation-duration: 16s;
    animation-delay: -4s;
}

.bg-blob-3 {
    width: 300px;
    height: 300px;
    background: rgba(231, 131, 76, 0.04);
    top: 40%;
    left: 50%;
    animation-duration: 18s;
    animation-delay: -7s;
}

@keyframes drift {
    0%, 100% { transform: translate(0, 0); }
    33% { transform: translate(20px, -15px); }
    66% { transform: translate(-15px, 10px); }
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

/* ==================== 2. SHARED HEADER COMPONENTS ==================== */

.chat-header,
.admin-header {
    background: transparent;
    color: var(--dark);
    padding: 18px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(28, 37, 38, 0.06);
    flex-shrink: 0;
    min-height: 70px;
    gap: 12px;
}

/* Chat header left group (logo + text column) */
.chat-header-left {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 12px;
}

/* Text column next to logo */
.header-text-column {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.header-text-column .chat-title {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 500;
    color: var(--dark);
    letter-spacing: 1px;
    text-transform: uppercase;
    opacity: 0.55;
}

.chat-header-content,
.admin-header-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 2px;
}

.chat-title,
.admin-title {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin: 0;
    color: var(--teal);
    transition: color 0.3s ease;
}

.chat-title:hover,
.admin-title:hover {
    color: var(--teal-bright);
}

.chat-subtitle,
.admin-subtitle {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 13px;
    font-weight: 500;
    color: var(--teal);
    margin: 0;
}

.admin-subtitle {
    color: #7a8a8b;
}

.subtitle-icon {
    font-size: 14px;
}

.subtitle-icon-chat {
    font-size: 18px;
}

.title-icon {
    font-size: 20px;
}

/* Brand plus sign styling */
.brand-plus {
    color: var(--primary-blue);
    font-weight: 800;
}

/* Brand logo */
.brand-logo {
    height: 50px;
    width: auto;
    margin-bottom: 10px;
}

/* Action Button */
.action-button {
    width: 34px;
    height: 34px;
    flex-shrink: 0;
    background: var(--teal-overlay-04);
    border: 1px solid var(--teal-overlay-12);
    border-radius: var(--radius-md);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    color: #7a8a8b;
}

.action-button:hover {
    background: rgba(42, 164, 160, 0.09);
    border-color: rgba(42, 164, 160, 0.2);
    color: var(--teal);
}

.action-button svg {
    width: 16px;
    height: 16px;
}

/* Icon: Hamburger (Menu) */
.hamburger-icon {
    width: 18px;
    height: 2px;
    background-color: var(--white);
    position: relative;
    border-radius: 1px;
}

.hamburger-icon::before,
.hamburger-icon::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 2px;
    background-color: var(--white);
    border-radius: 1px;
    left: 0;
}

.hamburger-icon::before { top: -6px; }
.hamburger-icon::after { top: 6px; }

/* Icon: Arrow Left (Back) */
.arrow-left-icon {
    width: 10px;
    height: 10px;
    border-top: 2px solid var(--white);
    border-left: 2px solid var(--white);
    transform: rotate(-45deg);
    margin-left: 3px;
}

/* Header Actions Container */
.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Icon: Back Arrow (SVG) */
.back-arrow-icon {
    color: var(--white);
    stroke: var(--white);
}

/* Icon: Save Disk (SVG) */
.save-disk-icon {
    color: var(--white);
    stroke: var(--white);
}

/* Icon: Logout (SVG) */
.logout-icon {
    color: var(--white);
    stroke: var(--white);
}

/* Emoji Button */
.emoji-button {
    font-size: 18px;
    color: var(--white);
}

/* Menu Container */
.menu-container {
    position: relative;
}

/* Dropdown Menu */
.dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.15s ease;
    z-index: 1000;
}

.dropdown-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Menu Items */
.menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    color: var(--gray-700);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.15s;
}

.menu-item:first-child {
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.menu-item:last-child {
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.menu-item:hover {
    background-color: var(--gray-50);
    color: var(--primary-blue);
}

/* Menu Icons */
.menu-icon {
    width: 14px;
    height: 14px;
    position: relative;
    flex-shrink: 0;
}

/* Book Icon for Reference */
.menu-icon-book::before {
    content: '';
    position: absolute;
    left: 2px;
    top: 1px;
    width: 10px;
    height: 12px;
    border: 1.5px solid var(--gray-600);
    border-radius: 1px;
}

.menu-icon-book::after {
    content: '';
    position: absolute;
    left: 4px;
    top: 4px;
    width: 6px;
    height: 1px;
    background: var(--gray-600);
    box-shadow: 0 2px 0 var(--gray-600), 0 4px 0 var(--gray-600);
}

/* Logout Icon - Simple X */
.menu-icon-logout::before,
.menu-icon-logout::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 50%;
    width: 12px;
    height: 1.5px;
    background: var(--gray-600);
    border-radius: 1px;
}

.menu-icon-logout::before {
    transform: translate(-50%, -50%) rotate(45deg);
}

.menu-icon-logout::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}


/* ==================== 3. CHAT PAGE STYLES ==================== */
.page-wrapper {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 30px var(--spacing-lg) 45px;
    background: transparent;
    position: relative;
    z-index: 3;
}

.chat-container {
    width: 1000px;
    max-width: 95vw;
    height: 90vh;
    max-height: 850px;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    z-index: 3;
}

/* Messages Area */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    background: rgba(243, 245, 244, 0.5);
    position: relative;
}

/* Loading indicator */
.history-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-md);
    color: var(--gray-500);
    font-size: 14px;
}

.history-loading-spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--gray-300);
    border-top-color: var(--primary-blue);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    margin-right: var(--spacing-sm);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Message Bubbles */
.message {
    display: flex;
    margin-bottom: var(--spacing-md);
    animation: fadeIn 0.2s ease-out;
}

/* Pinned welcome message style */
.message-pinned .message-content {
    position: relative;
}

.pin-indicator {
    position: absolute;
    top: 8px;
    right: 8px;
    font-size: 14px;
    opacity: 0.4;
    cursor: help;
    z-index: 1;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.message.user {
    justify-content: flex-end;
}

.message.bot {
    justify-content: flex-start;
    flex-direction: column;
    align-items: flex-start;
}

.message-content {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    line-height: 1.6;
    word-wrap: break-word;
    hyphens: auto;
    font-size: 14px;
}

.message.user .message-content {
    background: var(--gray-50);
    color: var(--dark);
    border: 1px solid rgba(28, 37, 38, 0.1);
    border-radius: 16px 16px 4px 16px;
    max-width: 70%;
    text-align: left;
}

.message.bot .message-content {
    background: var(--teal-overlay-04);
    color: var(--dark);
    border: 1px solid var(--teal-overlay-12);
    border-radius: 16px 16px 16px 4px;
    max-width: 80%;
    text-align: left;
}

/* Bot Markdown Styles */
.message.bot .message-content h1,
.message.bot .message-content h2,
.message.bot .message-content h3,
.message.bot .message-content h4 {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--primary-blue-dark);
    line-height: 1.4;
}

.message.bot .message-content h1:first-child,
.message.bot .message-content h2:first-child,
.message.bot .message-content h3:first-child,
.message.bot .message-content h4:first-child {
    margin-top: 0;
}

.message.bot .message-content h1 { font-size: 1.4em; }
.message.bot .message-content h2 { font-size: 1.25em; }
.message.bot .message-content h3 { font-size: 1.1em; }
.message.bot .message-content h4 { font-size: 1em; }

.message.bot .message-content p {
    margin-bottom: var(--spacing-sm);
}

.message.bot .message-content ul,
.message.bot .message-content ol {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
}

.message.bot .message-content li {
    margin-bottom: var(--spacing-xs);
}

/* Inline code - regular text style */
.message.bot .message-content code {
    background: none;
    padding: 0;
    margin: 0;
    border: none;
    font-family: inherit;
    font-size: inherit;
    color: var(--gray-800);
    font-weight: 500;
}

/* Special styling for parameter codes */
.message.bot .message-content span.param-code {
    background: var(--bg-code);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--primary-blue-dark);
    font-weight: 600;
    border: 1px solid var(--bg-code-border);
    white-space: nowrap;
}

/* Bold numbers */
.message.bot .message-content strong.number {
    font-weight: 700;
    color: var(--gray-900);
}

.message.bot .message-content pre {
    background: var(--gray-800);
    color: var(--gray-100);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    overflow-x: auto;
    overflow-wrap: break-word;
    white-space: pre-wrap;
    word-wrap: break-word;
    max-width: 100%;
    margin: var(--spacing-sm) 0;
    font-size: 13px;
}

.message.bot .message-content pre code {
    background: none;
    color: inherit;
    padding: 0;
    font-family: var(--font-mono);
}

.message.bot .message-content strong {
    font-weight: 600;
    color: var(--gray-900);
}

.message.bot .message-content a {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid transparent;
    transition: border-color 0.15s;
}

.message.bot .message-content a:hover {
    border-bottom-color: var(--primary-blue);
}

.message.bot .message-content blockquote {
    border-left: 3px solid var(--primary-blue);
    padding-left: var(--spacing-md);
    margin: var(--spacing-md) 0;
    color: var(--gray-600);
    font-style: italic;
}

.message.bot .message-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
    font-size: 13px;
    display: block;
    overflow-x: auto;
}

.message.bot .message-content th,
.message.bot .message-content td {
    padding: var(--spacing-sm) 12px;
    border: 1px solid var(--gray-200);
    text-align: left;
}

.message.bot .message-content th {
    background: var(--gray-50);
    font-weight: 600;
    color: var(--gray-700);
}

.message.bot .message-content td {
    background: var(--white);
}

/* Feedback Section */
.message-feedback {
    margin-top: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
}

.like-button {
    background: transparent;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.like-button:hover:not(:disabled) {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    transform: scale(1.05);
}

.feedback-disclaimer {
    font-size: 12px;
    color: var(--gray-500);
    font-style: italic;
    line-height: 1.4;
    flex: 1;
}

.feedback-thanks {
    font-size: 12px;
    color: var(--success);
    font-weight: 600;
    margin-left: var(--spacing-sm);
}

/* Input Area */
.chat-input-area {
    padding: 16px 24px 20px;
    background: rgba(255, 255, 255, 0.5);
    border-top: 1px solid rgba(28, 37, 38, 0.06);
    flex-shrink: 0;
}

.chat-input-row {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

.chat-input-wrap {
    flex: 1;
    min-width: 0;
    position: relative;
}

.char-counter-container {
    padding: 0 var(--spacing-lg) var(--spacing-sm);
    background: transparent;
    display: flex;
    justify-content: flex-end;
}

.char-counter,
.char-count {
    font-size: 11px;
    color: #b8c3c4;
    font-family: var(--font-mono);
    text-align: right;
    margin-top: 6px;
    padding-right: 2px;
}

.char-counter.near-limit,
.char-count.near-limit {
    color: var(--orange);
    font-weight: 600;
}

.char-counter.over-limit,
.char-count.over-limit {
    color: var(--error);
    font-weight: 700;
}

.system-warning {
    padding: 10px 14px;
    margin: 10px 0;
    background: var(--error-lighter);
    border-left: 3px solid var(--error);
    border-radius: var(--radius-sm);
    color: var(--error-dark);
    font-size: 13px;
    line-height: 1.5;
}

.chat-input {
    display: block;
    width: 100%;
    padding: 13px 16px;
    border: 1px solid rgba(42, 142, 139, 0.25);
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    font-family: var(--font-primary);
    color: var(--dark);
    outline: none;
    transition: all 0.25s ease;
    resize: none;
    min-height: 46px;
    max-height: 120px;
    line-height: 1.5;
    overflow-y: auto;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    box-sizing: border-box;
}

.chat-input::placeholder {
    color: #b0bfbf;
}

.chat-input:focus {
    border-color: rgba(42, 164, 160, 0.35);
    background: rgba(42, 164, 160, 0.05);
    box-shadow: 0 0 0 3px var(--teal-overlay-08);
}

.chat-input:disabled {
    background: var(--gray-100);
    cursor: not-allowed;
}

.send-button {
    width: 46px;
    height: 46px;
    padding: 0;
    background: linear-gradient(135deg, var(--teal), var(--teal-bright));
    color: var(--white);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 16px;
    cursor: pointer;
    transition: all 0.25s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(42, 142, 139, 0.25);
}

.send-button svg {
    width: 18px;
    height: 18px;
}

.send-button:hover:not(:disabled) {
    box-shadow: 0 4px 14px rgba(42, 142, 139, 0.3);
    transform: translateY(-1px);
}

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

.send-button:disabled {
    background: var(--gray-400);
    cursor: not-allowed;
    box-shadow: none;
}

/* Typing Indicator */
.typing-indicator {
    display: none;
    align-items: center;
    gap: 5px;
    padding: 14px 20px;
    background: var(--teal-overlay-04);
    border: 1px solid var(--teal-overlay-12);
    border-radius: 16px 16px 16px 4px;
    align-self: flex-start;
}

.typing-indicator.active {
    display: flex !important;
    animation: slideIn 0.3s ease-out;
}

.typing-dot {
    width: 7px;
    height: 7px;
    background: var(--teal-light);
    border-radius: 50%;
    animation: typingBounce 1.4s ease-in-out infinite;
    flex-shrink: 0;
}

.typing-dot:nth-child(2) { animation-delay: 0.15s; }
.typing-dot:nth-child(3) { animation-delay: 0.3s; }

@keyframes typingBounce {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.4;
    }
    30% {
        transform: translateY(-5px);
        opacity: 1;
    }
}

/* Recovery Status */
.recovery-status {
    margin-top: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-light);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    color: var(--gray-600);
    font-size: 12px;
    font-style: italic;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    max-width: 75%;
}


/* ==================== 4. ADMIN & SETTINGS STYLES ==================== */
.admin-page-wrapper {
    min-height: 100vh;
    background: var(--bg-page);
    padding: 30px var(--spacing-md) 45px;
    position: relative;
}

.admin-container {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
    z-index: 3;
}

.back-link {
    padding: 10px 18px;
    background: var(--admin-gray);
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: background-color 0.15s;
    border-radius: var(--radius-sm);
}

.back-link:hover {
    background: var(--admin-gray-dark);
}

/* Stats & Tabs */
.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
}

.stat-label {
    font-size: 12px;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
}

.stat-value.status-ready {
    font-size: 16px;
    color: var(--success);
}

.stat-value.status-error {
    font-size: 16px;
    color: var(--error);
}

.tabs-container {
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.tabs {
    display: flex;
    background: transparent;
    border-bottom: 1px solid rgba(28, 37, 38, 0.06);
    padding: 0 28px;
}

.tab {
    flex: none;
    padding: 14px 24px;
    background: transparent;
    border: 1px solid transparent;
    border-bottom: none;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    margin-bottom: -1px;
    color: #7a8a8b;
    font-family: var(--font-heading);
    font-size: 13.5px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.tab:hover {
    color: var(--dark);
}

.tab.active {
    color: var(--dark);
    background: white;
    border-color: rgba(28, 37, 38, 0.06);
    font-weight: 600;
}

.tab-content {
    display: none;
    padding: 28px 36px;
    animation: fadeUp 0.3s ease-out;
}

.tab-content.active {
    display: block;
}

.tab-content h2 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 20px;
}

/* Tables */
.table-container {
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
    border-radius: 12px;
    border: 1px solid var(--teal-overlay-12);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

thead th {
    text-align: left;
    padding: 12px 16px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 12px;
    color: #7a8a8b;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--teal-overlay-04);
    border-bottom: 1px solid var(--teal-overlay-12);
    white-space: nowrap;
}

tbody td {
    padding: 10px 6px;
    color: var(--dark);
    border-bottom: 1px solid rgba(28, 37, 38, 0.04);
    vertical-align: middle;
}

tbody tr:last-child td {
    border-bottom: none;
}

tbody tr:hover td {
    background: var(--teal-overlay-04);
}

table a {
    color: var(--teal);
    text-decoration: none;
    font-weight: 500;
}

table a:hover {
    text-decoration: underline;
}

.table-loading,
.table-empty {
    padding: 24px 16px;
    color: #94a3a4;
    font-style: italic;
    text-align: center;
}

/* Buttons */
.btn {
    padding: 14px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--teal), var(--teal-bright));
    color: var(--white);
    box-shadow: 0 2px 10px rgba(42, 142, 139, 0.25);
}

.btn-primary:hover {
    box-shadow: 0 4px 16px rgba(42, 142, 139, 0.3);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: scale(0.995);
}

.btn-success {
    background: linear-gradient(135deg, var(--success), var(--success-light));
    color: var(--white);
    box-shadow: 0 2px 10px rgba(5, 150, 105, 0.25);
}

.btn-success:hover {
    box-shadow: 0 4px 16px rgba(5, 150, 105, 0.3);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--error), var(--error-light));
    color: var(--white);
    box-shadow: 0 2px 10px rgba(220, 38, 38, 0.25);
}

.btn-danger:hover {
    box-shadow: 0 4px 16px rgba(220, 38, 38, 0.3);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--teal-overlay-04);
    border: 1px solid var(--teal-overlay-12);
    color: var(--dark);
}

.btn-secondary:hover {
    background: rgba(42, 164, 160, 0.09);
    border-color: rgba(42, 164, 160, 0.2);
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-family: var(--font-heading);
    font-weight: 500;
    color: var(--dark);
    font-size: 13.5px;
    opacity: 0.7;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 13px 16px;
    padding-right: 44px;
    border: 1px solid var(--teal-overlay-12);
    border-radius: var(--radius-md);
    background: var(--teal-overlay-04);
    font-family: var(--font-primary);
    font-size: 14.5px;
    color: var(--dark);
    outline: none;
    transition: all 0.25s ease;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: #b0bfbf;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: rgba(42, 164, 160, 0.35);
    background: var(--teal-overlay-08);
    box-shadow: 0 0 0 3px var(--teal-overlay-08);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
    padding-right: 16px;
}

/* Input wrapper for icon */
.input-wrap {
    position: relative;
}

.input-icon {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--teal);
    opacity: 0.45;
}


/* Pagination */
.pagination-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-top: auto;
    border-top: 1px solid var(--gray-200);
    background: var(--white);
}

.pagination-btn {
    padding: 8px 12px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.15s;
    min-width: 36px;
}

.pagination-btn:hover:not(:disabled) {
    background: var(--primary-blue-dark);
}

.pagination-btn:disabled {
    background: var(--gray-300);
    color: var(--gray-500);
    cursor: not-allowed;
}


/* ==================== 5. RESPONSIVE LAYOUTS ==================== */

@media (max-width: 768px) {

    /* Remove animated background completely on mobile */
    .bg-animated {
        display: none;
    }

    html, body {
        margin: 0;
        padding: 0;
        height: 100%;
        height: -webkit-fill-available;
        background: var(--white);
        overflow: hidden;
    }

    .page-wrapper {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        padding: 0;
        margin: 0;
        width: 100%;
        height: 100%;
        background: var(--white);
        display: flex;
        flex-direction: column;
    }

    .chat-container {
        flex: 1;
        width: 100%;
        max-width: 100%;
        height: 100%;
        margin: 0;
        border-radius: 0;
        border: none;
        background: var(--white);
        display: flex;
        flex-direction: column;
    }

    .chat-header {
        padding: 8px 12px;
        border-radius: 0;
        flex-shrink: 0;
    }

    .chat-title,
    .admin-title {
        font-size: 16px;
    }

    .logo-row {
        margin-top: 5px;
    }

    .chat-subtitle,
    .admin-subtitle {
        font-size: 12px;
    }

    .chat-messages {
        flex: 1;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 10px 12px;
        background: var(--bg-page);
        min-height: 0;
    }

    .chat-input-area {
        flex-shrink: 0;
        min-height: 60px;
        padding: 10px 12px;
        background: var(--white);
        border-top: 1px solid var(--gray-200);
        position: relative;
        z-index: 10;
        margin-bottom: max(80px, env(safe-area-inset-bottom, 10px));
    }

    .chat-input {
        font-size: 16px; /* Prevents iOS zoom on focus */
        min-height: 50px;
    }

    .send-button {
        width: 50px;
        height: 50px;
    }

    /* Hide character counter on mobile to save space */
    .char-count {
        display: none;
    }

    /* Admin page - full screen on mobile */
    .admin-body {
        background: var(--white);
        overflow: hidden;
    }

    /* Hide animated background on admin page */
    .admin-body .bg-animated {
        display: none;
    }

    .admin-page-wrapper {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        padding: 0;
        margin: 0;
        width: 100%;
        height: 100%;
        background: var(--white);
        display: flex;
        flex-direction: column;
        overflow: hidden;
    }

    .admin-container {
        flex: 1;
        width: 100%;
        max-width: 100%;
        height: 100%;
        display: flex;
        flex-direction: column;
        overflow: hidden;
    }

    .tabs-container {
        flex: 1;
        width: 100%;
        border-radius: 0;
        border: none;
        background: var(--white);
        display: flex;
        flex-direction: column;
        overflow: hidden;
    }

    .admin-header {
        flex-direction: row;
        border-radius: 0;
        padding: 8px 12px;
        flex-shrink: 0;
    }

    .tabs {
        overflow-x: auto;
        overflow-y: hidden;
        flex-shrink: 0;
        padding: 0 12px;
    }

    .tab {
        flex: none;
        min-width: 100px;
        padding: 10px 14px;
        font-size: 12px;
    }

    .tab-content {
        flex: 1;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 16px;
        padding-bottom: 80px;
    }

    .tab-content h2 {
        font-size: 16px;
        margin-bottom: 14px;
    }

    .stats-section {
        grid-template-columns: 1fr 1fr;
    }

    .message-content {
        max-width: 85%;
        font-size: 14px;
    }

    .message.bot .message-content h1 { font-size: 1.1em; }
    .message.bot .message-content h2 { font-size: 1.05em; }
    .message.bot .message-content h3 { font-size: 1em; }
    .message.bot .message-content h4 { font-size: 0.95em; }

    .message.bot .message-content strong,
    .message.bot .message-content b {
        font-weight: 600;
        font-size: 14px !important;
    }

    .message.bot .message-content table,
    .message.bot .message-content table * {
        font-size: 13px !important;
    }

    .message.bot .message-content th,
    .message.bot .message-content td {
        font-size: 13px !important;
        padding: 8px 10px;
    }

    .message.bot .message-content th strong,
    .message.bot .message-content th b,
    .message.bot .message-content td strong,
    .message.bot .message-content td b,
    .message.bot .message-content table strong,
    .message.bot .message-content table b {
        font-size: 13px !important;
        font-weight: 600;
    }

    .message.bot .message-content th code,
    .message.bot .message-content td code,
    .message.bot .message-content table code {
        font-size: 13px !important;
    }

    /* Hide powered-by on mobile chat - takes up full screen */
    .powered-by {
        display: none;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 16px;
        --spacing-xl: 20px;
    }

    .chat-header-content {
        padding-right: 10px;
        border-radius: 0;
    }

    .send-button {
        padding: 12px 16px;
    }

    .message-content {
        max-width: 90%;
        padding: 10px 12px;
    }

    .stats-section {
        grid-template-columns: 1fr;
    }

    .stat-value {
        font-size: 24px;
    }

    .table-container {
        font-size: 12px;
    }

    thead th, tbody td {
        padding: 8px 10px;
    }
}

/* ==================== 6. LOGIN PAGE STYLES ==================== */
.login-box {
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 460px;
    overflow: hidden;
    position: relative;
    z-index: 3;
}

.login-box .chat-header {
    border-radius: 0;
    margin: 0;
    background: transparent;
    border-bottom: 1px solid rgba(28, 37, 38, 0.06);
}

.login-box .login-form-content {
    padding: 32px;
}

.login-subtitle {
    font-size: 14px;
    color: #7a8a8b;
    margin-bottom: 24px;
    text-align: center;
}

.login-button {
    width: 140px;
    padding: 12px 32px;
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 500;
    color: var(--white);
    background: var(--teal);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.25s ease;
    margin: 24px auto 0;
    display: block;
    text-decoration: none;
    text-align: center;
}

.login-button:hover {
    background: var(--teal-bright);
}

.login-button:active {
    transform: scale(0.995);
}

.login-button.card-style {
    display: inline-block;
    width: auto;
    min-width: auto;
    background: var(--teal-overlay-04);
    border: 1px solid var(--teal-overlay-12);
    color: var(--dark);
    font-weight: 600;
    box-shadow: none;
}

.login-button.card-style:hover {
    background: linear-gradient(135deg, var(--teal), var(--teal-bright));
    border-color: transparent;
    color: var(--white);
    box-shadow: 0 2px 10px rgba(42, 142, 139, 0.25);
}

.button-center {
    text-align: center;
    margin-top: 12px;
}

.error-message {
    background: var(--error-lighter);
    color: var(--error-dark);
    padding: 12px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 14px;
    text-align: center;
    border: 1px solid #fecaca;
}

/* Error Page Styles */
.error-badge {
    color: var(--error);
    border-color: rgba(220, 38, 38, 0.2);
    background: rgba(220, 38, 38, 0.08);
}

.error-content {
    text-align: center;
}

.error-code {
    font-family: var(--font-heading);
    font-size: 56px;
    font-weight: 700;
    color: var(--teal);
    line-height: 1;
    margin-bottom: 8px;
}

.error-title-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.error-description {
    color: #7a8a8b;
    font-size: 14px;
    margin-bottom: 24px;
    text-align: center;
}

.error-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
}

.login-button.secondary {
    background: var(--gray-400);
}

.login-button.secondary:hover {
    background: var(--gray-500);
}

.logo {
    text-align: center;
    margin-bottom: 16px;
    font-size: 40px;
}

/* Print Styles */
@media print {
    .chat-input-area, .send-button, .tabs, .back-link, .action-button { display: none; }
}

/* ==================== 7. SYSTEM SELECT PAGE STYLES ==================== */
.select-system-body {
    font-family: var(--font-primary);
    background: transparent;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    padding-bottom: 45px; /* Space for powered-by footer */
    position: relative;
    overflow-x: hidden;
    overflow-y: auto;
}

/* Centered header variant for system selection */
.system-header-centered {
    justify-content: center;
}

.system-header-centered .chat-header-content {
    align-items: center;
    text-align: center;
}

/* System selection container - similar to chat container */
.system-select-container {
    width: 100%;
    max-width: 560px;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    position: relative;
    z-index: 3;
}

.system-select-content {
    padding: 24px 28px 28px;
}

.system-select-prompt {
    color: #7a8a8b;
    font-size: 14px;
    font-weight: 400;
    margin: 0 0 20px 0;
    text-align: center;
}

/* System cards grid */
.system-cards {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.system-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: var(--teal-overlay-04);
    border: 1px solid var(--teal-overlay-12);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all 0.25s ease;
    animation: slideIn 0.4s ease-out both;
}

.system-card:nth-child(1) { animation-delay: .08s; }
.system-card:nth-child(2) { animation-delay: .14s; }
.system-card:nth-child(3) { animation-delay: .20s; }
.system-card:nth-child(4) { animation-delay: .26s; }
.system-card:nth-child(5) { animation-delay: .32s; }

.system-card:hover {
    background: rgba(42, 164, 160, 0.09);
    border-color: rgba(42, 164, 160, 0.25);
    box-shadow: 0 2px 12px rgba(42, 142, 139, 0.08);
    transform: translateY(-1px);
}

.system-card:active {
    transform: scale(0.995);
}

.system-card-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 17px;
    flex-shrink: 0;
}

.system-card-icon { background: rgba(132, 192, 188, 0.12); }

.system-card-info {
    flex: 1;
    min-width: 0;
}

.system-card-name {
    display: block;
    font-family: var(--font-heading);
    font-size: 14.5px;
    font-weight: 500;
    color: var(--dark);
    margin-bottom: 2px;
    transition: color 0.15s;
}

.system-card-description {
    display: block;
    font-size: 12.5px;
    color: #94a3a4;
    line-height: 1.4;
    transition: color 0.15s;
}

.system-card-arrow {
    width: 18px;
    height: 18px;
    color: #c8d1d2;
    flex-shrink: 0;
    transition: all 0.25s ease;
}

.system-card:hover .system-card-arrow {
    color: var(--teal);
    transform: translateX(2px);
}

.admin-login-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid rgba(28, 37, 38, 0.05);
    font-size: 12.5px;
    color: #a0adae;
    text-decoration: none;
    transition: color 0.2s ease;
}

.admin-login-link a {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 12.5px;
    color: #a0adae;
    text-decoration: none;
    transition: color 0.2s ease;
}

.admin-login-link:hover,
.admin-login-link a:hover {
    color: var(--teal);
}

.admin-login-link svg {
    width: 13px;
    height: 13px;
}

.admin-login-link-no-border {
    border-top: none;
    padding-top: 0;
}

.error-login-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin: 8px 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.15s;
}

.error-login-link:hover {
    color: var(--primary-blue-light);
}

@media (max-width: 600px) {
    .select-system-body {
        padding: 0;
        margin: 0;
        align-items: stretch;
    }

    /* Remove animated background on mobile */
    .select-system-body .bg-animated {
        display: none;
    }

    .system-select-container {
        width: 100%;
        max-width: 100%;
        min-height: 100vh;
        margin: 0;
        border-radius: 0;
        border: none;
        background: var(--white);
        overflow-y: auto;
        padding-bottom: 20px;
    }

    .system-select-content {
        padding: 20px;
        padding-bottom: 80px;
    }

    .system-select-content .admin-login-link {
        margin-bottom: 20px;
    }

    .system-card {
        padding: 14px 16px;
    }

    .system-card-name {
        font-size: 14px;
    }

    .system-card-description {
        font-size: 12px;
    }

}

/* ==================== 8. DOCUMENT UPLOAD SECTION ==================== */

.upload-section {
    background: var(--teal-overlay-04);
    border: 1px solid var(--teal-overlay-12);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    margin-bottom: var(--spacing-lg);
}

.upload-section h3 {
    margin-top: 0;
    margin-bottom: 14px;
    font-family: var(--font-heading);
    color: var(--dark);
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.upload-form {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: flex-end;
}

.form-row {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
    flex-wrap: wrap;
}

.upload-section .form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: 0;
}

.upload-section .form-group label {
    font-size: 12.5px;
    font-weight: 500;
    color: #7a8a8b;
}

.upload-section .form-group input[type="file"],
.upload-section .form-group input[type="text"],
.upload-section .form-group select {
    padding: 10px 14px;
    border: 1px solid var(--teal-border);
    border-radius: var(--radius-md);
    background: var(--white);
    font-family: var(--font-primary);
    font-size: 13px;
    color: var(--dark);
    min-width: 180px;
    outline: none;
    transition: all 0.2s ease;
}

.upload-section .form-group select {
    cursor: pointer;
}

.upload-section .form-group input[type="text"] {
    min-width: 220px;
}

.upload-section .form-group input[type="file"]:focus,
.upload-section .form-group input[type="text"]:focus,
.upload-section .form-group select:focus {
    border-color: rgba(42, 164, 160, 0.35);
    box-shadow: 0 0 0 3px var(--teal-overlay-08);
}

.upload-section .form-group input[type="text"]::placeholder {
    color: #b0bfbf;
}

.upload-section p {
    margin: 0 0 var(--spacing-md) 0;
    font-size: 13px;
    color: #7a8a8b;
    line-height: 1.5;
}

.upload-button {
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--teal), var(--teal-bright));
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 13px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(42, 142, 139, 0.2);
}

.upload-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 3px 12px rgba(42, 142, 139, 0.25);
}

.upload-button:disabled {
    background: var(--gray-400);
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.upload-status {
    margin-top: var(--spacing-md);
    font-size: 13px;
}

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

.upload-status .error {
    color: var(--error);
}

.upload-status .loading {
    color: #7a8a8b;
}

.upload-status .warning {
    color: var(--orange);
}

.upload-status:not(:empty),
.edit-status:not(:empty) {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.status-dismiss {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    color: inherit;
    opacity: 0.5;
    padding: 0 2px;
    flex-shrink: 0;
}

.status-dismiss:hover {
    opacity: 1;
}

/* Preview Panel */
.preview-panel {
    margin-top: var(--spacing-lg);
    border: 1px solid var(--teal-border);
    border-radius: var(--radius-lg);
    background: var(--white);
    overflow: hidden;
}

.preview-header {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px 16px;
    background: var(--teal-overlay-04);
    border-bottom: 1px solid var(--teal-overlay-12);
}

.preview-header-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    width: 100%;
}

.preview-header-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    width: 100%;
}

.preview-header h4 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
}

/* Header icon buttons group (info, close) */
.header-icon-group {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}

.header-icon-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--teal-overlay-04);
    border: 1px solid var(--teal-overlay-12);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    line-height: 1;
    color: #7a8a8b;
    transition: all 0.2s ease;
}

.header-icon-btn:hover {
    background: var(--teal-overlay-12);
    border-color: rgba(42, 164, 160, 0.25);
    color: var(--teal);
}

/* Shortcuts tooltip */
.shortcuts-tooltip {
    position: absolute;
    top: 50px;
    right: 16px;
    background: var(--white);
    border: 1px solid var(--teal-overlay-12);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 14px 18px;
    z-index: 100;
    min-width: 200px;
}

.shortcuts-title {
    font-family: var(--font-heading);
    font-size: 13px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 10px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--teal-overlay-12);
}

.shortcut-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--gray-600);
    padding: 4px 0;
}

.shortcut-item kbd {
    display: inline-block;
    padding: 2px 6px;
    background: var(--gray-100);
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    color: var(--dark);
}

.shortcuts-divider {
    height: 1px;
    background: var(--teal-overlay-08);
    margin: 8px 0;
}

/* Keep old class for backwards compatibility */
.close-icon-btn {
    margin-left: auto;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 20px;
    line-height: 1;
    color: #7a8a8b;
    transition: all 0.2s ease;
}

.close-icon-btn:hover {
    background: var(--teal-overlay-12);
    color: var(--dark);
}

.preview-badge {
    font-size: 12px;
    padding: 2px 8px;
    background: var(--teal-overlay-12);
    border-radius: var(--radius-sm);
    color: var(--teal);
}

.edit-status {
    font-size: 12px;
}

.edit-status:empty {
    display: none;
}

.edit-status span {
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    display: inline-block;
}

.edit-status .success {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

.edit-status .error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--error);
}

.edit-status .loading {
    background: var(--teal-overlay-08);
    color: #7a8a8b;
}

.toggle-edit-btn {
    padding: 6px 12px;
    font-size: 12px;
    background: var(--white);
    border: 1px solid var(--teal-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s;
}

.toggle-edit-btn:hover {
    background: var(--teal-overlay-04);
}

.toggle-edit-btn.editing {
    background: var(--teal);
    color: var(--white);
    border-color: var(--teal);
}

.preview-editor {
    width: 100%;
    height: 700px;
    padding: 20px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    line-height: 1.5;
    border: none;
    resize: none;
    overflow-y: auto;
    background: var(--bg-code);
    color: var(--dark);
}

.preview-editor:focus {
    outline: none;
    box-shadow: inset 0 0 0 2px var(--teal-overlay-12);
}

.preview-content {
    padding: 20px;
    height: 700px;
    overflow-y: auto;
    font-size: 14px;
    line-height: 1.6;
    color: var(--dark);
}

.preview-content[contenteditable="true"] {
    cursor: text;
    outline: none;
}

.preview-content[contenteditable="true"]:focus {
    box-shadow: inset 0 0 0 2px var(--teal-overlay-25);
}

.preview-content img {
    display: inline-block;
    max-width: 100%;
    max-height: 200px;
    max-width: 200px;
    width: auto;
    height: auto;
    margin: 4px 8px;
    vertical-align: middle;
    border-radius: var(--radius-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    cursor: pointer;
}

.preview-content img:hover {
    outline: 2px solid var(--teal);
}

.preview-content img.selected {
    outline: 2px solid var(--error);
}

.preview-tip {
    font-size: 12px;
    color: var(--gray-500);
    margin-left: auto;
}

.upload-button.secondary {
    background: var(--gray-100);
    color: var(--dark);
    border: 1px solid var(--gray-300);
}

.upload-button.secondary:hover {
    background: var(--gray-200);
}

/* Import Success Banner */
.import-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    margin-bottom: 12px;
    background: #f0fdf4;
    color: #166534;
    border-left: 4px solid var(--success);
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    animation: bannerFadeIn 0.3s ease;
}

.import-banner.replaced {
    background: #fffbeb;
    color: #92400e;
    border-left-color: #f59e0b;
}

.import-banner.replaced .banner-close {
    color: #92400e;
}

.import-banner .banner-close {
    background: none;
    border: none;
    color: #166534;
    font-size: 18px;
    cursor: pointer;
    padding: 0 4px;
    opacity: 0.6;
}

.import-banner .banner-close:hover {
    opacity: 1;
}

@keyframes bannerFadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Extracted Documents List */
.extracted-docs-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.orphaned-badge {
    font-size: 0.85rem;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    background: var(--gray-100);
    color: var(--dark);
}

.orphaned-badge.warning {
    background: #fff3cd;
    color: #856404;
    font-weight: 500;
}

.extracted-docs-list {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--teal-overlay-12);
    border-radius: var(--radius-md);
    background: var(--white);
}

.extracted-doc-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--teal-overlay-08);
    cursor: pointer;
    transition: background 0.15s;
}

.extracted-doc-item:last-child {
    border-bottom: none;
}

.extracted-doc-item:hover {
    background: var(--teal-overlay-04);
}

.extracted-doc-item.selected {
    background: var(--teal-overlay-08);
}

.extracted-doc-info {
    flex: 1;
}

.extracted-doc-name {
    font-weight: 500;
    color: var(--dark);
    margin-bottom: 4px;
}

.extracted-doc-meta {
    font-size: 12px;
    color: var(--gray-500);
}

.extracted-doc-actions {
    display: flex;
    gap: 8px;
}

.extracted-doc-btn {
    padding: 6px 12px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    transition: background 0.15s;
}

.extracted-doc-btn.edit {
    background: var(--teal-overlay-12);
    color: var(--teal);
}

.extracted-doc-btn.edit:hover {
    background: var(--teal-overlay-25);
}

.extracted-doc-btn.download {
    background: var(--teal-overlay-08);
    color: var(--teal);
}

.extracted-doc-btn.download:hover {
    background: var(--teal-overlay-12);
}

.extracted-doc-btn.delete {
    background: var(--teal-overlay-08);
    color: var(--teal);
}

.extracted-doc-btn.delete:hover {
    background: var(--teal-overlay-12);
}

.extracted-doc-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

.extracted-docs-empty {
    padding: 24px;
    text-align: center;
    color: var(--gray-500);
}

/* Status badges for extracted documents */
.status-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 500;
}

.preview-content h1,
.preview-content h2,
.preview-content h3 {
    margin-top: 20px;
    margin-bottom: 10px;
    color: var(--dark);
}

.preview-content h1 { font-size: 1.5em; }
.preview-content h2 { font-size: 1.3em; }
.preview-content h3 { font-size: 1.1em; }

.preview-content p {
    margin: 10px 0;
}

.preview-content code {
    background: var(--teal-overlay-04);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 0.9em;
}

.preview-content pre {
    background: var(--teal-overlay-04);
    padding: 12px;
    border-radius: var(--radius-md);
    overflow-x: auto;
}

.preview-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 12px 16px;
    background: var(--teal-overlay-04);
    border-bottom: 1px solid var(--teal-overlay-12);
}

.preview-actions .form-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
}

.preview-actions .form-group label {
    font-size: 13px;
    font-weight: 500;
    color: #7a8a8b;
    white-space: nowrap;
}

.preview-actions select {
    padding: 8px 12px;
    border: 1px solid var(--teal-border);
    border-radius: var(--radius-md);
    background: var(--white);
    font-size: 13px;
    cursor: pointer;
}

.cancel-button {
    padding: 10px 20px;
    background: var(--white);
    color: #7a8a8b;
    border: 1px solid var(--teal-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 13px;
    transition: all 0.2s ease;
}

.cancel-button:hover {
    background: var(--teal-overlay-04);
    color: var(--dark);
}

.preview-actions-spacer {
    flex: 1;
}

.system-select {
    padding: 10px 14px;
    background: var(--gray-100);
    color: var(--dark);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 13px;
    transition: all 0.2s ease;
    min-width: 140px;
}

.system-select:hover {
    background: var(--gray-200);
}

.system-select:focus {
    outline: none;
    border-color: var(--teal);
    box-shadow: 0 0 0 2px var(--teal-overlay-08);
}

/* Bulk Upload Results */
.bulk-results {
    margin-top: var(--spacing-md);
    max-height: 280px;
    overflow-y: auto;
}

.bulk-result-item {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: 4px;
    border-radius: var(--radius-sm);
    font-size: 12px;
}

.bulk-result-item.success {
    background: #ecfdf5;
}

.bulk-result-item.error {
    background: var(--error-lighter);
}

.bulk-result-item.skipped {
    background: #fffbeb;
}

.bulk-result-item.replaced {
    background: #fffbeb;
}

.bulk-result-item .result-warnings {
    width: 100%;
    margin-top: 4px;
    padding-left: 28px;
    font-size: 11px;
    color: #b45309;
}

span.info {
    color: #0284c7;
}

.bulk-result-item .result-icon {
    flex-shrink: 0;
}

.bulk-result-item .result-filename {
    font-weight: 500;
    min-width: 180px;
}

.bulk-result-item .result-message {
    color: var(--gray-500);
    flex: 1;
}

.bulk-result-item .result-chunks {
    color: var(--gray-400);
    font-size: 11px;
}

/* Delete Button in tables */
.delete-btn {
    width: 28px;
    height: 28px;
    background: rgba(0, 128, 128, 0.08);
    border: 1px solid rgba(0, 128, 128, 0.2);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    color: var(--teal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.delete-btn:hover {
    background: rgba(0, 128, 128, 0.15);
    border-color: rgba(0, 128, 128, 0.3);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    padding: 14px 0;
    margin-top: 20px;
}

.pagination-btn {
    width: 34px;
    height: 34px;
    border: 1px solid var(--teal-overlay-12);
    border-radius: var(--radius-md);
    background: var(--teal-overlay-04);
    color: #7a8a8b;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pagination-btn:hover:not(.disabled) {
    background: rgba(42, 164, 160, 0.09);
    color: var(--teal);
}

.pagination-btn.active {
    background: linear-gradient(135deg, var(--teal), var(--teal-bright));
    color: white;
    border-color: transparent;
}

.pagination-btn.disabled {
    background: var(--gray-100);
    color: var(--gray-400);
    cursor: not-allowed;
    border-color: var(--gray-200);
}

.pagination-btn svg {
    width: 16px;
    height: 16px;
}

.pagination-info {
    font-size: 13px;
    color: #7a8a8b;
    font-weight: 500;
}

@media (max-width: 768px) {
    .upload-section {
        padding: var(--spacing-md);
    }

    .form-row {
        flex-direction: column;
        align-items: stretch;
    }

    .form-group input[type="file"],
    .form-group select {
        min-width: auto;
        width: 100%;
    }

    .upload-button {
        width: 100%;
    }
}

/* ==================== 9. PDF EXPORT STYLES ==================== */

/* Main PDF container overlay */
.pdf-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    overflow-y: auto;
    background-color: var(--white);
    z-index: 99999;
    box-sizing: border-box;
    font-family: var(--font-primary);
    color: var(--gray-900);
}

/* Confirmation bar at top */
.pdf-confirm-bar {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--primary-blue);
    padding: 16px 24px;
    box-shadow: var(--shadow-md);
    z-index: 100000;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
}

.pdf-confirm-message {
    color: var(--white);
    font-size: 15px;
    font-weight: 500;
}

.pdf-confirm-btn {
    background: var(--white);
    color: var(--primary-blue);
    border: none;
    padding: 10px 24px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.15s, transform 0.1s;
}

.pdf-confirm-btn:hover {
    background: var(--gray-100);
}

.pdf-confirm-btn:active {
    transform: scale(0.98);
}

.pdf-confirm-btn:disabled {
    background: var(--gray-300);
    color: var(--gray-500);
    cursor: not-allowed;
}

.pdf-cancel-btn {
    background: transparent;
    color: var(--white);
    border: 1px solid var(--white);
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.15s;
}

.pdf-cancel-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* PDF content wrapper */
.pdf-content-wrapper {
    width: 800px;
    margin: 0 auto;
    padding: 40px;
    background: var(--white);
}

/* PDF header */
.pdf-header {
    margin-bottom: 30px;
    border-bottom: 2px solid var(--primary-blue);
    padding-bottom: 16px;
    text-align: left;
}

.pdf-header-title {
    margin: 0;
    font-size: 22px;
    font-weight: 600;
    color: var(--primary-blue-dark);
}

.pdf-header-subtitle {
    margin: 8px 0 0 0;
    font-size: 15px;
    color: var(--gray-600);
}

.pdf-header-date {
    margin: 4px 0 0 0;
    font-size: 12px;
    color: var(--gray-500);
}

/* PDF message rows */
.pdf-message-row {
    margin-bottom: 20px;
    page-break-inside: avoid;
    display: flex;
    flex-direction: column;
}

.pdf-message-row.user {
    align-items: flex-end;
}

.pdf-message-row.bot {
    align-items: flex-start;
}

/* PDF message bubbles */
.pdf-message-box {
    padding: 16px;
    border-radius: var(--radius-md);
    max-width: 90%;
    min-width: 300px;
    color: var(--gray-900);
    text-align: left;
}

.pdf-message-box.user {
    background-color: #e8f0f8;
    border: 1px solid #c5d8ea;
}

.pdf-message-box.bot {
    background-color: var(--gray-50);
    border: 1px solid var(--gray-200);
}

/* PDF message label */
.pdf-message-label {
    font-size: 10px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* PDF message content styling */
.pdf-message-content {
    color: var(--gray-900);
    line-height: 1.6;
    font-size: 14px;
}

.pdf-message-content h1,
.pdf-message-content h2,
.pdf-message-content h3,
.pdf-message-content h4 {
    color: var(--primary-blue-dark);
    margin-top: 12px;
    margin-bottom: 6px;
    font-weight: 600;
}

.pdf-message-content pre {
    background-color: var(--gray-100);
    border: 1px solid var(--gray-300);
    padding: 12px;
    border-radius: var(--radius-sm);
    white-space: pre-wrap;
    font-family: var(--font-mono);
    margin: 10px 0;
    color: var(--gray-900);
    max-width: 100%;
    overflow-x: hidden;
    font-size: 13px;
}

.pdf-message-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 10px 0;
}

.pdf-message-content td,
.pdf-message-content th {
    border: 1px solid var(--gray-400);
    padding: 8px;
    color: var(--gray-900);
    font-size: 13px;
}

.pdf-message-content th {
    background: var(--gray-100);
    font-weight: 600;
}

.pdf-message-content ul,
.pdf-message-content ol {
    margin-left: 20px;
    padding-left: 0;
}

.pdf-message-content a {
    color: var(--primary-blue);
}

/* PDF footer */
.pdf-footer {
    margin-top: 30px;
    border-top: 2px solid var(--primary-blue);
    padding-top: 16px;
    text-align: center;
    background: var(--white);
}

.pdf-footer-date {
    margin: 0;
    font-size: 12px;
    color: var(--gray-500);
}

.pdf-footer-copyright {
    margin: 4px 0 0 0;
    font-size: 10px;
    color: var(--gray-400);
}

/* ==================== 10. CHUNK VISUALIZATION MODAL ==================== */

/* Modal overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(28, 37, 38, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    padding: var(--spacing-lg);
}

.modal-content {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.chunk-modal {
    min-height: 400px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid rgba(28, 37, 38, 0.06);
    background: var(--teal-overlay-04);
}

.modal-header h3 {
    margin: 0;
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    word-break: break-all;
}

.modal-close {
    background: var(--teal-overlay-04);
    border: 1px solid var(--teal-overlay-12);
    font-size: 20px;
    color: #7a8a8b;
    cursor: pointer;
    padding: 4px 10px;
    line-height: 1;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: rgba(42, 164, 160, 0.09);
    color: var(--teal);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex: 1;
}

/* Chunk stats grid */
.chunk-stats {
    margin-bottom: var(--spacing-lg);
}

.chunk-stats .loading {
    text-align: center;
    color: #7a8a8b;
    padding: var(--spacing-lg);
}

.chunk-stats .error {
    text-align: center;
    color: var(--error);
    padding: var(--spacing-lg);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-md);
}

.stats-grid .stat-item {
    background: var(--teal-overlay-04);
    border: 1px solid var(--teal-overlay-12);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
}

.stats-grid .stat-value {
    display: block;
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 700;
    color: var(--teal);
    margin-bottom: 4px;
}

.stats-grid .stat-label {
    display: block;
    font-size: 11px;
    color: #7a8a8b;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.chunks-title {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--teal-overlay-12);
}

/* Chunks list */
.chunk-item {
    border: 1px solid var(--teal-overlay-12);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
}

.chunk-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--teal-overlay-04);
    cursor: pointer;
    transition: background-color 0.15s;
}

.chunk-header:hover {
    background: rgba(42, 164, 160, 0.09);
}

.chunk-number {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--dark);
    font-size: 13px;
}

.chunk-size {
    color: #7a8a8b;
    font-size: 12px;
}

.chunk-toggle {
    color: var(--teal-light);
    font-size: 10px;
    transition: transform 0.2s;
}

.chunk-content {
    padding: var(--spacing-md);
    background: var(--white);
    border-top: 1px solid var(--teal-overlay-12);
}

.chunk-content pre {
    margin: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: var(--font-primary);
    font-size: 13px;
    line-height: 1.5;
    color: var(--gray-700);
}

/* Expandable table cells for system logs */
.expandable-cell {
    max-width: 400px;
    min-width: 150px;
}

.expandable-cell .cell-content {
    white-space: pre-wrap;
    word-wrap: break-word;
    font-size: 12px;
    line-height: 1.5;
    color: var(--gray-700);
}

.expandable-cell .metadata-pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 11px;
    background: var(--gray-50);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    border: 1px solid var(--gray-200);
    max-height: 200px;
    overflow-y: auto;
}

/* Document link styling */
.doc-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
    transition: color 0.15s;
}

.doc-link:hover {
    color: var(--primary-blue-dark);
    text-decoration: underline;
}

/* Modal responsive */
@media (max-width: 768px) {
    .modal-overlay {
        padding: var(--spacing-sm);
    }

    .modal-content {
        max-height: 95vh;
    }

    .modal-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .modal-header h3 {
        font-size: 14px;
    }

    .modal-body {
        padding: var(--spacing-md);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid .stat-value {
        font-size: 16px;
    }

}

/* ==================== 11. POWERED BY FOOTER ==================== */
.powered-by {
    position: fixed;
    bottom: 12px;
    left: 0;
    right: 0;
    text-align: center;
    font-size: 11px;
    color: #b8c3c4;
    z-index: 2;
    font-family: var(--font-primary);
}

.powered-by a {
    color: #94a3a4;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s ease;
}

.powered-by a:hover {
    color: var(--teal);
}

/* ==================== 12. LOGO AND BADGE STYLES ==================== */
.logo-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 16px;
}

.logo-mark {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--teal), var(--teal-bright));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(42, 142, 139, 0.25);
}

.logo-mark svg {
    width: 18px;
    height: 18px;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 14px;
    font-weight: 500;
    color: var(--dark);
    letter-spacing: 1px;
    text-transform: uppercase;
    opacity: 0.55;
}

.online-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 10px;
    padding: 4px 12px;
    border-radius: 20px;
    background: var(--teal-overlay-08);
    font-size: 12px;
    color: var(--teal);
    font-weight: 500;
}

.online-dot {
    width: 6px;
    height: 6px;
    background: var(--teal-bright);
    border-radius: 50%;
    animation: pulse 2.5s ease-in-out infinite;
}

/* ==================== 13. LOGIN CONTAINER (same pattern as chat) ==================== */
.login-container {
    width: 500px;
    max-width: 95vw;
    height: auto;
    max-height: 90vh;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    z-index: 3;
}

.login-content {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: var(--spacing-lg);
    background: transparent;
}

.login-form-wrapper {
    max-width: 350px;
    margin: 0 auto;
}

.login-form-wrapper .login-subtitle {
    text-align: center;
    margin-bottom: 24px;
}

.login-form-wrapper .login-button {
    width: auto;
    min-width: 120px;
    padding: 10px 28px;
    margin-top: 16px;
}

/* Mobile login container - same as chat-container */
@media (max-width: 768px) {
    .login-container {
        flex: 1;
        width: 100%;
        max-width: 100%;
        height: 100%;
        max-height: none;
        margin: 0;
        border-radius: 0;
        border: none;
        background: var(--white);
        display: flex;
        flex-direction: column;
    }

    .login-content {
        flex: 1;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 20px;
        padding-bottom: 80px;
        min-height: 0;
    }

    .login-form-wrapper {
        max-width: 100%;
    }

    /* Prevent iOS zoom on input focus */
    .login-content .form-input,
    .login-content input[type="text"],
    .login-content input[type="password"] {
        font-size: 16px !important;
    }
}