/* =====================================================
   NexusAI — Design System & Shared Styles
   Premium Dark Mode | Glassmorphism | Outfit Font
   ===================================================== */

/* ─── Google Font ──────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* ─── CSS Custom Properties ────────────────────────── */
:root {
    /* Background */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a2e;
    --bg-surface: rgba(26, 26, 46, 0.6);
    --bg-surface-hover: rgba(30, 30, 55, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-glass-border: rgba(255, 255, 255, 0.06);

    /* Accent Colors */
    --accent-primary: #6c5ce7;
    --accent-primary-light: #a29bfe;
    --accent-secondary: #00cec9;
    --accent-glow: rgba(108, 92, 231, 0.3);
    --accent-glow-strong: rgba(108, 92, 231, 0.5);

    /* Gradient */
    --gradient-primary: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 50%, #00cec9 100%);
    --gradient-accent: linear-gradient(135deg, #6c5ce7 0%, #00cec9 100%);
    --gradient-surface: linear-gradient(145deg, rgba(26, 26, 46, 0.8) 0%, rgba(10, 10, 15, 0.9) 100%);
    --gradient-mesh: radial-gradient(ellipse at 20% 50%, rgba(108, 92, 231, 0.08) 0%, transparent 50%),
                     radial-gradient(ellipse at 80% 20%, rgba(0, 206, 201, 0.06) 0%, transparent 50%),
                     radial-gradient(ellipse at 50% 80%, rgba(162, 155, 254, 0.05) 0%, transparent 50%);

    /* Text */
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b8;
    --text-muted: #6b6b80;
    --text-inverse: #0a0a0f;

    /* Status */
    --success: #00b894;
    --warning: #fdcb6e;
    --danger: #e17055;
    --info: #74b9ff;

    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-medium: rgba(255, 255, 255, 0.1);
    --border-accent: rgba(108, 92, 231, 0.3);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(108, 92, 231, 0.2);
    --shadow-glow-strong: 0 0 40px rgba(108, 92, 231, 0.3);

    /* Spacing & Sizing */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ─── Reset & Base ─────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Background mesh gradient */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: var(--gradient-mesh);
    pointer-events: none;
    z-index: 0;
}

/* ─── Custom Scrollbar ─────────────────────────────── */
::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* ─── Glassmorphism Card ───────────────────────────── */
.glass-card {
    background: var(--bg-surface);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.glass-card-strong {
    background: rgba(26, 26, 46, 0.85);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* ─── Buttons ──────────────────────────────────────── */
.btn-nexus {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    color: #fff;
    background: var(--gradient-accent);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-nexus::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn-nexus:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-strong);
}

.btn-nexus:hover::before {
    opacity: 1;
}

.btn-nexus:active {
    transform: translateY(0) scale(0.98);
}

.btn-nexus-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--accent-primary-light);
    background: transparent;
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-nexus-outline:hover {
    background: rgba(108, 92, 231, 0.1);
    border-color: var(--accent-primary);
    transform: translateY(-1px);
}

.btn-nexus-danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 18px;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--danger);
    background: rgba(225, 112, 85, 0.1);
    border: 1px solid rgba(225, 112, 85, 0.2);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-nexus-danger:hover {
    background: rgba(225, 112, 85, 0.2);
    border-color: var(--danger);
}

.btn-icon {
    width: 42px;
    height: 42px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    font-size: 1.1rem;
}

/* ─── Form Inputs ──────────────────────────────────── */
.input-nexus {
    width: 100%;
    padding: 12px 18px;
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    color: var(--text-primary);
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    outline: none;
    transition: all var(--transition-base);
}

.input-nexus::placeholder {
    color: var(--text-muted);
}

.input-nexus:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
    background: rgba(255, 255, 255, 0.05);
}

textarea.input-nexus {
    resize: vertical;
    min-height: 80px;
}

.form-label-nexus {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
    letter-spacing: 0.02em;
}

/* ─── Animations ───────────────────────────────────── */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes dotBounce {
    0%, 80%, 100% {
        transform: scale(0.6);
        opacity: 0.4;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.animate-fade-in-up {
    animation: fadeInUp 0.5s ease-out forwards;
}

.animate-fade-in {
    animation: fadeIn 0.4s ease-out forwards;
}

/* ─── Chat-Specific Styles ─────────────────────────── */

/* Chat Container */
.chat-wrapper {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* Chat Header */
.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: var(--gradient-surface);
    border-bottom: 1px solid var(--border-subtle);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.chat-header-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.chat-header-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    animation: float 3s ease-in-out infinite;
}

.chat-header-title {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--gradient-primary);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 4s ease-in-out infinite;
}

.chat-header-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 400;
}

.chat-header-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--success);
}

.chat-header-status::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse 2s ease-in-out infinite;
}

/* Chat Messages Area */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    scroll-behavior: smooth;
}

/* Message Bubbles */
.message {
    display: flex;
    gap: 12px;
    max-width: 80%;
    animation: fadeInUp 0.4s ease-out forwards;
}

.message-user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-ai {
    align-self: flex-start;
    animation-name: slideInLeft;
}

.message-user {
    animation-name: slideInRight;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.message-ai .message-avatar {
    background: var(--gradient-accent);
    box-shadow: 0 0 12px var(--accent-glow);
}

.message-user .message-avatar {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-medium);
}

.message-content {
    padding: 14px 18px;
    border-radius: var(--radius-lg);
    font-size: 0.92rem;
    line-height: 1.65;
    word-break: break-word;
}

.message-ai .message-content {
    background: var(--bg-surface);
    border: 1px solid var(--bg-glass-border);
    border-top-left-radius: 4px;
    color: var(--text-primary);
}

.message-user .message-content {
    background: var(--gradient-accent);
    border-top-right-radius: 4px;
    color: #fff;
}

.message-time {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 6px;
    padding: 0 4px;
}

.message-user .message-time {
    text-align: right;
}

/* AI message markdown styling */
.message-ai .message-content p {
    margin-bottom: 8px;
}

.message-ai .message-content p:last-child {
    margin-bottom: 0;
}

.message-ai .message-content code {
    background: rgba(108, 92, 231, 0.15);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85em;
    font-family: 'Courier New', monospace;
}

.message-ai .message-content pre {
    background: rgba(0, 0, 0, 0.3);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin: 8px 0;
}

.message-ai .message-content pre code {
    background: none;
    padding: 0;
}

.message-ai .message-content ul,
.message-ai .message-content ol {
    margin: 6px 0;
    padding-left: 20px;
}

.message-ai .message-content strong {
    color: var(--accent-primary-light);
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0;
    max-width: 80%;
    animation: fadeIn 0.3s ease-out;
}

.typing-dots {
    display: flex;
    gap: 5px;
    padding: 14px 18px;
    background: var(--bg-surface);
    border: 1px solid var(--bg-glass-border);
    border-radius: var(--radius-lg);
    border-top-left-radius: 4px;
}

.typing-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-primary-light);
    animation: dotBounce 1.4s ease-in-out infinite;
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

/* Chat Input Area */
.chat-input-area {
    padding: 16px 24px 24px;
    background: var(--gradient-surface);
    border-top: 1px solid var(--border-subtle);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.chat-input-container {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 8px 8px 8px 20px;
    transition: all var(--transition-base);
}

.chat-input-container:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow), var(--shadow-glow);
}

.chat-input {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    padding: 8px 0;
    outline: none;
    resize: none;
    max-height: 120px;
    line-height: 1.5;
}

.chat-input::placeholder {
    color: var(--text-muted);
}

.chat-send-btn {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
    background: var(--gradient-accent);
    border: none;
    color: #fff;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.chat-send-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow-strong);
}

.chat-send-btn:active {
    transform: scale(0.95);
}

.chat-send-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.chat-footer-text {
    text-align: center;
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 10px;
}

/* Welcome Message */
.welcome-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    text-align: center;
    animation: fadeInUp 0.6s ease-out;
    flex: 1;
}

.welcome-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-xl);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    margin-bottom: 24px;
    animation: float 3s ease-in-out infinite;
    box-shadow: var(--shadow-glow-strong);
}

.welcome-title {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.welcome-subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    max-width: 400px;
    line-height: 1.6;
    margin-bottom: 32px;
}

.welcome-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    max-width: 500px;
}

.suggestion-chip {
    padding: 10px 18px;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    font-family: 'Outfit', sans-serif;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.suggestion-chip:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary-light);
    background: rgba(108, 92, 231, 0.1);
    transform: translateY(-2px);
}

/* ─── Admin-Specific Styles ────────────────────────── */

/* Admin Layout */
.admin-wrapper {
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* Navbar */
.admin-navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 32px;
    background: var(--gradient-surface);
    border-bottom: 1px solid var(--border-subtle);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.admin-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.admin-brand-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.admin-brand-text {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.admin-brand-badge {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: var(--radius-full);
    background: rgba(108, 92, 231, 0.15);
    color: var(--accent-primary-light);
    border: 1px solid rgba(108, 92, 231, 0.2);
}

.admin-nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.stat-icon.purple {
    background: rgba(108, 92, 231, 0.15);
    color: var(--accent-primary-light);
}

.stat-icon.teal {
    background: rgba(0, 206, 201, 0.15);
    color: var(--accent-secondary);
}

.stat-icon.amber {
    background: rgba(253, 203, 110, 0.15);
    color: var(--warning);
}

.stat-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 400;
}

/* Data Table */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.data-table thead th {
    padding: 14px 18px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: left;
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(255, 255, 255, 0.02);
    white-space: nowrap;
}

.data-table tbody tr {
    transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--bg-surface-hover);
}

.data-table tbody td {
    padding: 14px 18px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-subtle);
    vertical-align: top;
}

.data-table .cell-category {
    display: inline-flex;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 600;
    background: rgba(108, 92, 231, 0.12);
    color: var(--accent-primary-light);
    border: 1px solid rgba(108, 92, 231, 0.2);
}

.data-table .cell-text {
    max-width: 280px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-height: 1.5;
}

.data-table .cell-actions {
    display: flex;
    gap: 8px;
    white-space: nowrap;
}

.data-table .cell-actions .btn-icon {
    width: 34px;
    height: 34px;
    font-size: 0.85rem;
}

.btn-edit {
    background: rgba(108, 92, 231, 0.1);
    color: var(--accent-primary-light);
}

.btn-edit:hover {
    background: rgba(108, 92, 231, 0.2);
}

.btn-delete {
    background: rgba(225, 112, 85, 0.1);
    color: var(--danger);
}

.btn-delete:hover {
    background: rgba(225, 112, 85, 0.2);
}

/* Toolbar */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 360px;
}

.search-box .search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}

.search-box .input-nexus {
    padding-left: 42px;
}

/* Login Page */
.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    position: relative;
    z-index: 1;
}

.login-card {
    width: 100%;
    max-width: 420px;
    padding: 40px;
    text-align: center;
}

.login-logo {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    margin: 0 auto 20px;
    animation: float 3s ease-in-out infinite;
    box-shadow: var(--shadow-glow-strong);
}

.login-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.login-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 32px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.login-form .input-nexus {
    text-align: left;
}

.login-error {
    font-size: 0.85rem;
    color: var(--danger);
    padding: 10px 16px;
    background: rgba(225, 112, 85, 0.1);
    border: 1px solid rgba(225, 112, 85, 0.2);
    border-radius: var(--radius-md);
    display: none;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    padding: 20px;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-card {
    width: 100%;
    max-width: 560px;
    padding: 32px;
    transform: translateY(20px) scale(0.95);
    transition: transform var(--transition-spring);
}

.modal-overlay.active .modal-card {
    transform: translateY(0) scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.modal-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background: rgba(225, 112, 85, 0.1);
    border-color: var(--danger);
    color: var(--danger);
}

.modal-body {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 8px;
}

/* Toast / Notification */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 14px 20px;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    font-family: 'Outfit', sans-serif;
    animation: slideInRight 0.4s ease-out;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 280px;
    box-shadow: var(--shadow-lg);
}

.toast-success {
    background: rgba(0, 184, 148, 0.15);
    border: 1px solid rgba(0, 184, 148, 0.3);
    color: var(--success);
}

.toast-error {
    background: rgba(225, 112, 85, 0.15);
    border: 1px solid rgba(225, 112, 85, 0.3);
    color: var(--danger);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
    opacity: 0.4;
}

.empty-state-text {
    font-size: 0.95rem;
}

/* ─── Responsive ───────────────────────────────────── */
@media (max-width: 768px) {
    .chat-header {
        padding: 12px 16px;
    }

    .chat-messages {
        padding: 16px;
    }

    .message {
        max-width: 90%;
    }

    .chat-input-area {
        padding: 12px 16px 20px;
    }

    .welcome-title {
        font-size: 1.4rem;
    }

    .welcome-suggestions {
        flex-direction: column;
    }

    .admin-navbar {
        padding: 12px 16px;
    }

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

    .search-box {
        max-width: 100%;
    }

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

    .modal-card {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .chat-header-subtitle {
        display: none;
    }

    .message-avatar {
        width: 30px;
        height: 30px;
        font-size: 0.75rem;
    }

    .message-content {
        padding: 10px 14px;
        font-size: 0.88rem;
    }
}