/*
   Ethera RAG Chatbot - Clean Professional Design
   Dark blue for admin panel, teal for chat
   Focus: Readability, clean business look, responsive
*/

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

:root {
    /* Color Palette */
    --primary-teal: #26a69a;
    --primary-teal-light: #4db6ac;
    --primary-teal-dark: #00897b;
    --primary-teal-darker: #00695c;
    --primary-blue: #5c6bc0;
    --primary-blue-light: #7986cb;
    --primary-blue-dark: #3f51b5;

    /* Admin/Dark Colors */
    --admin-dark: #003051;
    --admin-gray: #41424e;
    --admin-gray-dark: #2a2b33;
    --admin-border: #8d5252;

    /* Status Colors */
    --success: #26a69a;
    --error: #d32f2f;
    --error-light: #f44336;
    --error-lighter: #ffebee;
    --error-dark: #c62828;
    --warning: #f57c00;

    /* Background Colors */
    --bg-page: #fcfcfc;
    --bg-code: #e8f5f3;
    --bg-code-border: #b2dfdb;

    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #eeeeee;
    --gray-300: #e0e0e0;
    --gray-400: #bdbdbd;
    --gray-600: #757575;
    --gray-700: #616161;
    --gray-800: #424242;
    --gray-900: #212121;

    /* Gradient Colors */
    --gradient-navy: #0e3f58; /* #063655; */
    --gradient-teal: #185973; /* #0b5e68; */

    /* 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-25: rgba(255, 255, 255, 0.25);
    --overlay-white-70: rgba(255, 255, 255, 0.7);
    --overlay-black-10: rgba(0, 0, 0, 0.1);
    --overlay-black-20: rgba(0, 0, 0, 0.2);

    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 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 */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 3px 6px rgba(0,0,0,0.16), 0 3px 6px rgba(0,0,0,0.23);
    --shadow-lg: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

body {
    font-family: var(--font-primary);
    background: var(--gray-100);
    color: var(--gray-900);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==================== 2. SHARED HEADER COMPONENTS ==================== */
/* Applies to Chat, Settings, and Admin pages for uniform look */

/* The Main Header Container */
.chat-header,
.settings-header,
.admin-header {
    /* Light background to match system selection page */
    background: var(--white);
    color: var(--gradient-navy);

    /* Layout */
    padding: 20px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;

    /* Visuals */
    border-bottom: 2px solid var(--gray-200);
    border-radius: 20px 20px 0 0;
    box-shadow: none;
    flex-shrink: 0;
    min-height: 85px;
}

/* Text Containers */
.chat-header-content,
.settings-header-content,
.admin-header-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
}

/* Titles */
.chat-title,
.settings-title,
.admin-title {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.3px;
    color: var(--gradient-navy);
    margin: 0;
}

/* Subtitles */
.chat-subtitle,
.settings-subtitle,
.admin-subtitle {
    font-size: 18px;
    opacity: 0.95;
    font-weight: 500;
    color: var(--gradient-teal);
    margin: 0;
}

/* Action Button */
.action-button {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    background-color: var(--primary-teal);
    border: none;
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.action-button:hover {
    background-color: var(--primary-teal-dark);
    transform: scale(1.05);
}

/* Icon: Hamburger (Menu) */
.hamburger-icon {
    width: 20px; 
    height: 2px; 
    background-color: var(--white); 
    position: relative; 
    border-radius: 2px;
}
.hamburger-icon::before, .hamburger-icon::after {
    content: ''; 
    position: absolute; 
    width: 20px; 
    height: 2px; 
    background-color: var(--white); 
    border-radius: 2px; 
    left: 0;
}
.hamburger-icon::before { top: -7px; }
.hamburger-icon::after { top: 7px; }

/* Icon: Arrow Left (Back) */
.arrow-left-icon {
    width: 12px;
    height: 12px;
    border-top: 2px solid var(--white);
    border-left: 2px solid var(--white);
    transform: rotate(-45deg);
    margin-left: 4px;
}

/* Header Actions Container */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* 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);
}

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

/* Dropdown Menu */
.dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s 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: 12px 16px;
    color: var(--gradient-teal);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: background-color 0.2s;
}

.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-100);
}

/* 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(--gradient-teal);
    border-radius: 1px;
}

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

/* 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(--gradient-teal);
    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: center;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--gradient-navy) 0%, var(--gradient-teal) 100%);
}

.chat-container {
    width: 100%;
    max-width: 1200px;
    height: 90vh;
    max-height: 900px;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}


/* Messages Area */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    background: var(--gray-50);
    position: relative;
}

/* Loading indicator */
.history-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-md);
    color: var(--gray-600);
    font-size: 14px;
}

.history-loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid var(--gray-300);
    border-top-color: var(--primary-teal);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: var(--spacing-sm);
}

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

/* Message Bubbles */
.message {
    display: flex;
    margin-bottom: var(--spacing-lg);
    animation: fadeIn 0.3s ease-in;
}

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

.pin-indicator {
    position: absolute;
    top: 8px;
    right: 8px;
    font-size: 16px;
    opacity: 0.5;
    cursor: help;
    z-index: 1;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    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: 1.5;
    word-wrap: break-word;
    hyphens: auto;
    font-size: 15px;
}

.message.user .message-content {
    background: var(--bg-code);
    color: var(--gray-900);
    border: 1px solid var(--gray-300);
    border-bottom-right-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    max-width: 75%;
    text-align: left;
}

.message.bot .message-content {
    background: var(--white);
    color: var(--gray-900);
    border: 1px solid var(--gray-300);
    box-shadow: var(--shadow-sm);
    border-bottom-left-radius: var(--radius-sm);
    max-width: 75%;
    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-teal-dark);
    line-height: 1.3;
}

.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: 1.5em; }
.message.bot .message-content h2 { font-size: 1.3em; }
.message.bot .message-content h3 { font-size: 1.15em; }
.message.bot .message-content h4 { font-size: 1.05em; }

.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); 
}

/* Default inline code - ENSURE IT LOOKS LIKE REGULAR TEXT */
.message.bot .message-content code {
    background: none; 
    padding: 0; 
    margin: 0; 
    border: none;
    font-family: inherit; 
    font-size: inherit; 
    color: var(--gray-900); 
    font-weight: 500;
}

/* Special styling ONLY for parameter codes with the .param-code class */
.message.bot .message-content span.param-code {
    background: var(--bg-code);
    padding: 3px 7px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.9em;
    color: var(--primary-teal-darker);
    font-weight: 600;
    border: 1px solid var(--bg-code-border);
    white-space: nowrap;
}

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

.message.bot .message-content pre {
    background: var(--gray-900);
    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;
}

.message.bot .message-content pre code {
    background: none;
    color: inherit;
    padding: 0;
}

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

.message.bot .message-content a {
    color: var(--primary-teal);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

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

.message.bot .message-content blockquote {
    border-left: 3px solid var(--primary-teal);
    padding-left: var(--spacing-md);
    margin: var(--spacing-md) 0;
    color: var(--gray-700);
    font-style: italic;
}

.message.bot .message-content table {
    width: 100%; 
    border-collapse: 
    collapse; margin: 
    var(--spacing-md) 0;
    font-size: 0.95em; 
    display: block; 
    overflow-x: auto; 
    white-space: nowrap;
}

.message.bot .message-content th,
.message.bot .message-content td {
    padding: var(--spacing-sm) 12px; 
    border: 1px solid var(--gray-300); 
    text-align: left;
}

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

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

/* Feedback (Like) 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: 18px;
    cursor: pointer; 
    transition: all 0.2s; 
    display: flex; 
    align-items: center; 
    justify-content: center;
}

.like-button:hover:not(:disabled) {
    background: var(--primary-teal-light);
    border-color: var(--primary-teal); 
    transform: scale(1.1);
}

.feedback-disclaimer {
    font-size: 12px; 
    color: var(--gray-600); 
    font-style: italic; 
    line-height: 1.4; 
    flex: 1;
}

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

/* Input Area */
.chat-input-area {
    padding: var(--spacing-lg);
    padding-bottom: 10px;
    background: var(--white);
    border-top: 1px solid var(--gray-300);
    display: flex;
    gap: var(--spacing-md);
}

.char-counter-container {
    padding: 0 var(--spacing-lg) 15px;
    background: var(--white);
    display: flex;
    justify-content: flex-end;
}

.char-counter {
    font-size: 12px;
    color: var(--gray-600);
    font-family: var(--font-mono);
}

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

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

.system-warning {
    padding: 10px 15px;
    margin: 10px 0;
    background: var(--error-lighter);
    border-left: 4px solid var(--error);
    border-radius: var(--radius-sm);
    color: var(--error-dark);
    font-size: 14px;
    line-height: 1.5;
}

.chat-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 16px;
    font-family: var(--font-primary);
    outline: none;
    transition: border-color 0.2s;
}

.chat-input:focus {
    border-color: var(--primary-teal);
}

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

.send-button {
    padding: 12px 20px;
    background: var(--primary-teal); 
    color: var(--white);
    border: none; 
    border-radius: var(--radius-md); 
    font-size: 20px; 
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s; 
    white-space: nowrap;
    display: flex; 
    align-items: center; 
    justify-content: center;
}

.send-button:hover:not(:disabled) { 
    background: var(--gradient-navy); 
}

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

.send-button:disabled { 
    background: var(--gray-400); 
    cursor: not-allowed; 
    opacity: 0.6; 
}

/* Typing Indicator */
.typing-indicator {
    display: none;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 12px 16px;
    background: var(--white);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-300);
    box-shadow: var(--shadow-sm);
}

.typing-indicator.active {
    display: flex !important;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: var(--primary-teal);
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out;
    /* Ensure perfect circles */
    flex-shrink: 0;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 60%, 100% {
        opacity: 0.3;
        transform: translateY(0px) scale(1);
    }
    30% {
        opacity: 1;
        transform: translateY(-4px) scale(1);
    }
}

/* Recovery Status Message */
.recovery-status {
    margin-top: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary-teal-light);
    border: 1px solid var(--primary-teal);
    border-radius: var(--radius-sm);
    color: var(--gray-700);
    font-size: 13px;
    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: var(--spacing-xl) var(--spacing-md);
}

.admin-container { 
    max-width: 1400px; 
    margin: 0 auto; 
}

.back-link {
    padding: 10px 20px;
    background: var(--admin-gray);
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: background-color 0.2s;
}

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

/* Stats & Tabs */
.stats-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--white);
    padding: 10px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.stat-label {
    font-size: 13px;
    color: var(--admin-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}
.stat-value { 
    font-size: 22px; 
    font-weight: 700; 
    color: var(--gray-900); 
}

.stat-value.status-ready { 
    font-size: 18px; 
    color: var(--success); 
}

.stat-value.status-error { 
    font-size: 18px; 
    color: var(--error); 
}

.tabs-container {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.tabs {
    display: flex;
    background: var(--admin-gray);
    border-bottom: 1px solid var(--admin-border);
}

.tab {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    background: none;
    border: none;
    color: var(--overlay-white-70);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border-bottom: 3px solid transparent;
}

.tab:hover {
    color: var(--white);
    background: var(--overlay-white-10);
}

.tab.active {
    color: var(--white);
    border-bottom-color: var(--white);
    background: var(--overlay-white-15);
}

.tab-content {
    display: none;
    padding: var(--spacing-xl);
}

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

/* Tables */
.table-container {
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

thead th {
    background: var(--gray-100);
    color: var(--gray-900);
    font-weight: 600;
    text-align: left;
    padding: 12px 16px;
    border-bottom: 2px solid var(--gray-300);
    white-space: nowrap;
    font-size: 14px;
}

tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-200);
    font-size: 14px;
}

tbody tr:hover {
    background: var(--gray-50);
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-blue);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-blue-light);
}

.btn-success {
    background: var(--admin-gray);
    color: var(--white);
}

.btn-success:hover {
    background: var(--admin-gray-dark);
}

.btn-danger {
    background: var(--error);
    color: var(--white);
}

.btn-danger:hover {
    background: var(--error-light);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-900);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

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

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--gray-900);
    font-size: 13px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 10px 12px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 16px;
    font-family: var(--font-primary);
    transition: border-color 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-teal);
}

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


/* Settings Reference */
.settings-reference-container {
    max-width: 1400px; 
    margin: 0 auto; 
    padding: var(--spacing-lg); 
    background: var(--white); 
    min-height: 100vh;
}

.settings-list-container {
    background: var(--white); 
    border: 1px solid var(--gray-300); 
    border-radius: var(--radius-md);
    padding: var(--spacing-lg); 
    display: flex;     
    flex-direction: column;
}

.setting-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--spacing-md);
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    transition: background 0.2s;
    gap: var(--spacing-md);
}

.setting-item:hover { 
    background: var(--gray-100); 
}

.setting-id {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-teal-dark);
    width: 30%;
    min-width: 150px;
    max-width: 200px;
    flex-shrink: 0;
}

.setting-name {
    font-size: 14px;
    color: var(--gray-700);
    flex: 1;
    text-align: left;
    padding-left: var(--spacing-md);
    overflow-wrap: anywhere;
    word-break: normal;
    white-space: normal;
    min-width: 0;
}

/* Pagination */
.pagination-controls {
    display: flex; 
    justify-content: center; 
    align-items: center; 
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    margin-top: auto;
    border-top: 1px solid var(--gray-300);
    background: var(--white);
}

.pagination-btn {
    padding: 8px 12px;
    background: var(--primary-teal);
    color: var(--white); 
    border: none;
    border-radius: 6px; 
    cursor: pointer; 
    font-size: 16px; 
    transition: all 0.2s ease; 
    min-width: 40px;
}

.pagination-btn:hover:not(:disabled) { 
    transform: translateY(-1px); 
}

.pagination-btn:disabled { 
    background: var(--gray-300); 
    color: var(--gray-500); 
    cursor: not-allowed; 
    transform: none; 
}


/* ==================== 5. RESPONSIVE LAYOUTS (CONSOLIDATED) ==================== */

/* TABLETS & MOBILE (Max Width 768px) */
@media (max-width: 768px) {

    /* --- 1. Chat Interface (Mobile App Feel) --- */
    .page-wrapper {
        padding: 0;
        min-height: 100vh;
        min-height: 100svh; /* Small viewport height - excludes address bar */
        min-height: 100dvh; /* Dynamic height for mobile browsers */
        width: 100%;
        background: var(--white);
        display: block;
    }

    .chat-container {
        width: 100%;
        min-height: 100vh;
        min-height: 100svh;
        min-height: 100dvh;
        max-height: none;
        border-radius: 0;
        box-shadow: none;
        display: flex;
        flex-direction: column;
    }

    .chat-header {
        padding: 15px;
        border-radius: 0;
    }

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

    .chat-messages {
        flex: 1; /* Scrollable area */
        overflow-y: auto; 
        -webkit-overflow-scrolling: touch;
        padding: 15px;
        background: var(--bg-page);
    }

    /* Fixed Input at Bottom */
    .chat-input-area {
        position: sticky;
        bottom: 0;
        flex-shrink: 0;
        padding: 10px 15px;
        padding-bottom: max(20px, calc(10px + env(safe-area-inset-bottom)));
        background: var(--white);
        border-top: 1px solid var(--gray-200);
        z-index: 10;
    }

    /* --- 2. Settings & Admin Pages Mobile --- */
    .settings-reference-container {
        min-height: 100dvh;
        padding: 0;
        display: flex;
        flex-direction: column;
    }
    
    .settings-header {
        padding: 15px;
        border-radius: 0;
    }
    
    .settings-list-container {
        border: none;
        border-radius: 0;
        flex: 1;
    }
    
    .admin-page-wrapper {
        padding: var(--spacing-md);
    }

    .admin-header {
        flex-direction: row; /* Keep headers consistent */
        border-radius: 0;
    }

    /* --- 3. General Elements --- */
    .stats-section {
        grid-template-columns: 1fr 1fr;
    }

    .tabs {
        overflow-x: auto; /* Scrollable tabs */
    }

    .tab {
        flex: none;
        min-width: 120px;
    }

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

    /* Reduce heading sizes in bot messages on mobile */
    .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; }

    /* Fix strong/bold text size in all bot messages on mobile */
    .message.bot .message-content strong,
    .message.bot .message-content b {
        font-weight: 600;
        font-size: 14px !important;
    }

    /* Ultra-specific table font-size rules - force ALL elements to 14px */
    .message.bot .message-content table,
    .message.bot .message-content table * {
        font-size: 14px !important;
    }

    .message.bot .message-content th,
    .message.bot .message-content td {
        font-size: 14px !important;
        padding: 8px 10px;
    }

    /* Explicitly set strong/bold text in tables to 14px */
    .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: 14px !important;
        font-weight: 600;
    }

    /* Set code blocks in tables to 14px (same as regular text) */
    .message.bot .message-content th code,
    .message.bot .message-content td code,
    .message.bot .message-content table code {
        font-size: 14px !important;
    }
}

/* SMALL MOBILE (Max Width 480px) */
@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: 28px;
    }
    
    /* Ensure tables scroll */
    .table-container {
        font-size: 13px;
    }
    thead th, tbody td {
        padding: 8px 12px;
    }
}

/* ==================== 6. LOGIN PAGE STYLES ==================== */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: var(--bg-page);
    padding: 20px;
}

.login-box {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    padding: 40px;
    width: 100%;
    max-width: 400px;
}

.login-title {
    font-size: 20px;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 10px;
    text-align: center;
}

.login-subtitle {
    font-size: 12px;
    color: #718096;
    margin-bottom: 30px;
    text-align: center;
}

.login-button {
    min-width: 120px;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--white);
    background: var(--primary-teal);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    margin-top: 10px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.login-button:hover {
    background: var(--gradient-navy);
}

.login-button:active {
    transform: scale(0.95);
}

.error-message {
    background: #fed7d7;
    color: #c53030;
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    text-align: center;
}

.logo {
    text-align: center;
    margin-bottom: 20px;
    font-size: 48px;
}

/* 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: linear-gradient(135deg, var(--gradient-navy) 0%, var(--gradient-teal) 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.select-container {
    max-width: 600px;
    width: 100%;
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 50px 40px;
    text-align: center;
}

.select-title {
    color: var(--gradient-navy);
    margin-bottom: 20px;
    font-size: 28px;
    font-weight: 700;
}

.select-description-bold {
    color: var(--gray-700);
    margin-bottom: 40px;
    font-size: 16px;
    font-weight: 500;
}

.select-description-italic {
    color: var(--gray-700);
    margin-bottom: 40px;
    font-size: 16px;
    font-style: italic;
}

.system-buttons {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.system-button {
    display: block;
    padding: 20px 30px;
    background: linear-gradient(135deg, var(--gradient-navy) 0%, var(--gradient-teal) 100%);
    color: var(--white);
    text-decoration: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    transition: opacity 0.3s ease;
    box-shadow: 0 4px 15px rgba(14, 63, 88, 0.4);
    border: 2px solid transparent;
}

.system-button:hover {
    opacity: 0.9;
}

.system-button:active {
    opacity: 0.8;
}

.system-button.mobile-trader {
    background: linear-gradient(135deg, var(--primary-teal-dark) 0%, var(--primary-teal) 100%);
    box-shadow: 0 4px 15px rgba(38, 166, 154, 0.4);
}

@media (max-width: 600px) {
    .select-container {
        padding: 30px 20px;
    }

    .select-title {
        font-size: 24px;
    }

    .select-description {
        font-size: 14px;
        margin-bottom: 30px;
    }

    .system-button {
        padding: 16px 24px;
        font-size: 16px;
    }
}