/* ============================================
   Theme 5: WhatsApp NTN Blend
   WhatsApp yesil + NTN kirmizi + Mor + Amber
   NTN Bilgi Islem (ntn.com.tr)
   ============================================ */

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

/* ============================================
   CSS Custom Properties - Light Mode (Default)
   ============================================ */
:root {
    /* Primary Colors - WhatsApp Green */
    --primary: #075E54;
    --primary-light: #128C7E;
    --primary-dark: #054D44;
    --accent: #25D366;
    --accent-light: #34E879;
    --accent-dark: #1DA851;
    /* Secondary - NTN Red (strong secondary) */
    --secondary: #C62828;
    --secondary-light: #E53935;
    --secondary-dark: #B71C1C;
    /* Info - Purple accent */
    --info: #8B5CF6;
    --info-light: #A78BFA;
    --info-dark: #7C3AED;
    /* Warning - Amber */
    --warning: #F59E0B;
    --warning-light: #FBBF24;
    --warning-dark: #D97706;
    /* Danger */
    --danger: #EF4444;
    --danger-light: #F87171;
    /* Background & Surface */
    --bg-main: #F0F2F5;
    --bg-secondary: #E4E6EB;
    --surface: #FFFFFF;
    --surface-hover: #F5F6F8;
    --surface-active: #EDF0F3;
    /* Sidebar */
    --sidebar-bg: #111B21;
    --sidebar-hover: #1F2C33;
    --sidebar-active: #2A3942;
    --sidebar-text: #AEBAC1;
    --sidebar-text-active: #E9EDEF;
    --sidebar-border: #222D34;
    /* Topbar */
    --topbar-bg: #FFFFFF;
    --topbar-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    /* Text */
    --text-primary: #111B21;
    --text-secondary: #54656F;
    --text-muted: #8696A0;
    --text-inverse: #E9EDEF;
    /* Chat */
    --chat-bg: #EFEAE2;
    --chat-bg-pattern: rgba(0, 0, 0, 0.04);
    --chat-bubble-sent: #D9FDD3;
    --chat-bubble-received: #FFFFFF;
    --chat-bubble-sent-shadow: 0 1px 1px rgba(0, 0, 0, 0.06);
    --chat-bubble-received-shadow: 0 1px 1px rgba(0, 0, 0, 0.06);
    --chat-input-bg: #F0F2F5;
    --chat-header-bg: #F0F2F5;
    --chat-timestamp: #667781;
    /* Cards */
    --card-bg: #FFFFFF;
    --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    --card-shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.1);
    --card-border: #E9EDEF;
    /* Forms */
    --input-bg: #FFFFFF;
    --input-border: #D1D7DB;
    --input-border-focus: #128C7E;
    --input-placeholder: #8696A0;
    /* Buttons */
    --btn-primary-bg: linear-gradient(135deg, #075E54, #128C7E);
    --btn-primary-hover: linear-gradient(135deg, #054D44, #0E7A6E);
    --btn-primary-text: #FFFFFF;
    --btn-secondary-bg: #F0F2F5;
    --btn-secondary-text: #075E54;
    --btn-secondary-hover: #E4E6EB;
    --btn-ntn-bg: linear-gradient(135deg, #C62828, #E53935);
    --btn-ntn-hover: linear-gradient(135deg, #B71C1C, #C62828);
    --btn-ntn-text: #FFFFFF;
    /* Borders & Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 50%;
    --border-color: #E9EDEF;
    /* Misc */
    --badge-bg: #C62828;
    --badge-text: #FFFFFF;
    --unread-badge: #C62828;
    --divider: #E9EDEF;
    --overlay: rgba(0, 0, 0, 0.4);
    --scrollbar-thumb: #CCCCCC;
    --scrollbar-track: transparent;
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.16);
    /* Layout */
    --sidebar-width: 260px;
    --topbar-height: 64px;
    --chat-panel-width: 360px;
    /* Register */
    --register-gradient: linear-gradient(135deg, #075E54 0%, #128C7E 30%, #25D366 55%, #C62828 100%);
    --register-pattern-opacity: 0.06;
}

/* ============================================
   Dark Mode
   ============================================ */
[data-theme="dark"] {
    --bg-main: #0B141A;
    --bg-secondary: #111B21;
    --surface: #1F2C33;
    --surface-hover: #2A3942;
    --surface-active: #34454E;
    --topbar-bg: #1F2C33;
    --topbar-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --text-primary: #E9EDEF;
    --text-secondary: #AEBAC1;
    --text-muted: #8696A0;
    --chat-bg: #0B141A;
    --chat-bg-pattern: rgba(255, 255, 255, 0.02);
    --chat-bubble-sent: #005C4B;
    --chat-bubble-received: #1F2C33;
    --chat-bubble-sent-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    --chat-bubble-received-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    --chat-input-bg: #1F2C33;
    --chat-header-bg: #1F2C33;
    --chat-timestamp: #8696A0;
    --card-bg: #1F2C33;
    --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    --card-shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.3);
    --card-border: #2A3942;
    --input-bg: #2A3942;
    --input-border: #3B4A54;
    --input-border-focus: #25D366;
    --input-placeholder: #667781;
    --border-color: #2A3942;
    --divider: #2A3942;
    --overlay: rgba(0, 0, 0, 0.6);
    --scrollbar-thumb: #3B4A54;
    --badge-bg: #C62828;
    --unread-badge: #C62828;
    --register-gradient: linear-gradient(135deg, #0B141A 0%, #075E54 30%, #128C7E 55%, #C62828 100%);
    --register-pattern-opacity: 0.04;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-main);
    transition: background-color var(--transition-normal), color var(--transition-normal);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: var(--primary-light);
    transition: color var(--transition-fast);
}

    a:hover {
        color: var(--accent);
    }

img {
    max-width: 100%;
    height: auto;
}

ul, ol {
    list-style: none;
}

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

::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 3px;
}

    ::-webkit-scrollbar-thumb:hover {
        background: var(--text-muted);
    }

/* ============================================
   Layout - App Shell
   ============================================ */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.app-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left var(--transition-normal);
}

.app-content {
    flex: 1;
    padding: 24px;
    margin-top: var(--topbar-height);
}

/* ============================================
   Sidebar
   ============================================ */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: transform var(--transition-normal), width var(--transition-normal);
    overflow: hidden;
}

.sidebar-header {
    padding: 16px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--sidebar-border);
    min-height: 72px;
}

/* FlowFix29: Logo kutusu — gradient arkaplan kaldirildi, favicon dogrudan gorunuyor */
.sidebar-logo {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sidebar-logo-img {
    width: 44px;
    height: 44px;
    object-fit: contain;
    display: block;
}

.sidebar-brand {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0; /* flex child overflow engellemek icin */
    overflow: hidden;
}

.sidebar-brand-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--sidebar-text-active);
    line-height: 1.2;
    white-space: nowrap;
}

    /* NTN text in RED for brand identity */
    .sidebar-brand-name .ntn-red {
        color: #E53935;
        font-weight: 800;
    }

.sidebar-brand-sub {
    font-size: 11px;
    color: var(--sidebar-text);
    font-weight: 400;
    margin-top: 2px;
    white-space: nowrap;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 10px;
    overflow-y: auto;
}

.sidebar-nav-section {
    margin-bottom: 8px;
}

.sidebar-nav-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--sidebar-text);
    padding: 8px 14px 6px;
    opacity: 0.6;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 11px 14px;
    border-radius: var(--radius-md);
    color: var(--sidebar-text);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    margin-bottom: 2px;
}

    .sidebar-nav-item i {
        font-size: 18px;
        width: 22px;
        text-align: center;
        flex-shrink: 0;
    }

    .sidebar-nav-item:hover {
        background: var(--sidebar-hover);
        color: var(--sidebar-text-active);
    }

    .sidebar-nav-item.active {
        background: var(--sidebar-active);
        color: var(--sidebar-text-active);
    }

        /* Active bar: NTN red instead of green */
        .sidebar-nav-item.active::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--secondary);
            border-radius: 0 3px 3px 0;
        }

/* Badge: NTN red */
.sidebar-nav-badge {
    margin-left: auto;
    background: var(--secondary);
    color: #FFFFFF;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
    min-width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--sidebar-border);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, #C62828, #E53935);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-weight: 600;
    font-size: 14px;
    flex-shrink: 0;
}

.sidebar-user-info {
    flex: 1;
    min-width: 0;
}

.sidebar-user-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--sidebar-text-active);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-role {
    font-size: 11px;
    color: var(--sidebar-text);
}

/* Mobile sidebar toggle */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 1100;
    width: 42px;
    height: 42px;
    border-radius: var(--radius-md);
    background: var(--primary);
    color: #FFFFFF;
    border: none;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: var(--shadow-md);
    transition: background var(--transition-fast);
}

    .sidebar-toggle:hover {
        background: var(--primary-light);
    }

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--overlay);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

    .sidebar-overlay.active {
        opacity: 1;
    }

/* ============================================
   Topbar
   ============================================ */
.topbar {
    position: fixed;
    top: 0;
    left: var(--sidebar-width);
    right: 0;
    height: var(--topbar-height);
    background: var(--topbar-bg);
    display: flex;
    align-items: center;
    padding: 0 24px;
    z-index: 900;
    box-shadow: var(--topbar-shadow);
    transition: left var(--transition-normal), background-color var(--transition-normal);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
}

.breadcrumb-item {
    color: var(--text-muted);
}

    .breadcrumb-item.active {
        color: var(--text-primary);
        font-weight: 600;
    }

.breadcrumb-separator {
    color: var(--text-muted);
    font-size: 10px;
}

.topbar-search {
    position: relative;
    max-width: 380px;
    width: 100%;
    margin-left: 24px;
}

    .topbar-search input {
        width: 100%;
        padding: 9px 16px 9px 42px;
        border-radius: var(--radius-lg);
        border: 1px solid var(--border-color);
        background: var(--chat-input-bg);
        color: var(--text-primary);
        font-size: 13px;
        font-family: inherit;
        outline: none;
        transition: all var(--transition-fast);
    }

        .topbar-search input::placeholder {
            color: var(--input-placeholder);
        }

        .topbar-search input:focus {
            border-color: var(--input-border-focus);
            box-shadow: 0 0 0 3px rgba(18, 140, 126, 0.12);
        }

    .topbar-search i {
        position: absolute;
        left: 14px;
        top: 50%;
        transform: translateY(-50%);
        color: var(--text-muted);
        font-size: 15px;
    }

.topbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.topbar-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: all var(--transition-fast);
    position: relative;
}

    .topbar-btn:hover {
        background: var(--surface-hover);
        color: var(--text-primary);
    }

    /* Notification dot: NTN red */
    .topbar-btn .notification-dot {
        position: absolute;
        top: 8px;
        right: 8px;
        width: 8px;
        height: 8px;
        background: var(--secondary);
        border-radius: var(--radius-full);
        border: 2px solid var(--topbar-bg);
    }

.topbar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px 6px 6px;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: background var(--transition-fast);
    margin-left: 4px;
}

    .topbar-user:hover {
        background: var(--surface-hover);
    }

.topbar-user-avatar {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, #075E54, #25D366);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-weight: 600;
    font-size: 13px;
}

.topbar-user-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Theme toggle */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: all var(--transition-fast);
}

    .theme-toggle:hover {
        background: var(--surface-hover);
        color: var(--text-primary);
    }

[data-theme="dark"] .theme-toggle .bi-moon-fill {
    display: none;
}

[data-theme="light"] .theme-toggle .bi-sun-fill,
:not([data-theme="dark"]) .theme-toggle .bi-sun-fill {
    display: none;
}

[data-theme="dark"] .theme-toggle .bi-sun-fill {
    display: inline;
}

/* ============================================
   Cards
   ============================================ */
.card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--card-border);
    box-shadow: var(--card-shadow);
    transition: all var(--transition-normal);
    overflow: hidden;
}

    .card:hover {
        box-shadow: var(--card-shadow-hover);
    }

.card-body {
    padding: 20px;
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

/* ============================================
   Stat Cards - Multi-color accents
   ============================================ */
.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 22px;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--card-border);
    box-shadow: var(--card-shadow);
    transition: all var(--transition-normal);
}

    .stat-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }

    /* Green accent - messages */
    .stat-card.gradient-green::before {
        background: linear-gradient(90deg, #075E54, #25D366);
    }

    /* Red accent - customers (NTN) */
    .stat-card.gradient-red::before {
        background: linear-gradient(90deg, #C62828, #E53935);
    }

    /* Purple accent - delivery */
    .stat-card.gradient-purple::before {
        background: linear-gradient(90deg, #7C3AED, #A78BFA);
    }

    /* Amber accent - flows */
    .stat-card.gradient-amber::before {
        background: linear-gradient(90deg, #D97706, #FBBF24);
    }

    .stat-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--card-shadow-hover);
    }

.stat-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.stat-card-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.stat-card.gradient-green .stat-card-icon {
    background: rgba(7, 94, 84, 0.1);
    color: var(--primary);
}

.stat-card.gradient-red .stat-card-icon {
    background: rgba(198, 40, 40, 0.1);
    color: var(--secondary);
}

.stat-card.gradient-purple .stat-card-icon {
    background: rgba(139, 92, 246, 0.1);
    color: var(--info);
}

.stat-card.gradient-amber .stat-card-icon {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

[data-theme="dark"] .stat-card.gradient-green .stat-card-icon {
    background: rgba(37, 211, 102, 0.12);
    color: #25D366;
}

[data-theme="dark"] .stat-card.gradient-red .stat-card-icon {
    background: rgba(229, 57, 53, 0.12);
    color: #E53935;
}

[data-theme="dark"] .stat-card.gradient-purple .stat-card-icon {
    background: rgba(139, 92, 246, 0.12);
    color: #A78BFA;
}

[data-theme="dark"] .stat-card.gradient-amber .stat-card-icon {
    background: rgba(245, 158, 11, 0.12);
    color: #FBBF24;
}

.stat-card-change {
    font-size: 12px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 20px;
}

    .stat-card-change.positive {
        background: rgba(37, 211, 102, 0.1);
        color: #25D366;
    }

    .stat-card-change.negative {
        background: rgba(198, 40, 40, 0.1);
        color: var(--secondary);
    }

.stat-card-value {
    font-size: 30px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.1;
    margin-bottom: 4px;
}

.stat-card-label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

/* ============================================
   Stat Grid
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

/* ============================================
   Activity Feed - Multi-color icons
   ============================================ */
.activity-feed {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

    .activity-item:hover {
        background: var(--surface-hover);
    }

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

    .activity-icon.green {
        background: rgba(37, 211, 102, 0.12);
        color: #25D366;
    }

    .activity-icon.blue {
        background: rgba(18, 140, 126, 0.12);
        color: #128C7E;
    }

    .activity-icon.red {
        background: rgba(198, 40, 40, 0.12);
        color: #C62828;
    }

    .activity-icon.orange {
        background: rgba(245, 158, 11, 0.12);
        color: #F59E0B;
    }

    .activity-icon.purple {
        background: rgba(139, 92, 246, 0.12);
        color: #8B5CF6;
    }

    .activity-icon.amber {
        background: rgba(245, 158, 11, 0.12);
        color: #F59E0B;
    }

.activity-content {
    flex: 1;
    min-width: 0;
}

.activity-text {
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 500;
}

    .activity-text strong {
        font-weight: 600;
    }

.activity-time {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ============================================
   Quick Actions - Multi-color
   ============================================ */
.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px 16px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
}

    .quick-action-btn:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

        .quick-action-btn:hover .quick-action-icon {
            transform: scale(1.1);
        }

    /* Per-color hover borders */
    .quick-action-btn.qa-green:hover {
        border-color: var(--accent);
    }

    .quick-action-btn.qa-purple:hover {
        border-color: var(--info);
    }

    .quick-action-btn.qa-blue:hover {
        border-color: var(--primary-light);
    }

    .quick-action-btn.qa-red:hover {
        border-color: var(--secondary);
    }

.quick-action-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    transition: transform var(--transition-normal);
}

    .quick-action-icon.green {
        background: linear-gradient(135deg, rgba(7, 94, 84, 0.12), rgba(37, 211, 102, 0.12));
        color: var(--primary);
    }

    .quick-action-icon.purple {
        background: linear-gradient(135deg, rgba(124, 58, 237, 0.12), rgba(167, 139, 250, 0.12));
        color: var(--info);
    }

    .quick-action-icon.blue {
        background: linear-gradient(135deg, rgba(18, 140, 126, 0.12), rgba(37, 211, 102, 0.12));
        color: var(--primary-light);
    }

    .quick-action-icon.red {
        background: linear-gradient(135deg, rgba(198, 40, 40, 0.12), rgba(229, 57, 53, 0.12));
        color: var(--secondary);
    }

[data-theme="dark"] .quick-action-icon.green {
    background: rgba(37, 211, 102, 0.08);
    color: #25D366;
}

[data-theme="dark"] .quick-action-icon.purple {
    background: rgba(139, 92, 246, 0.08);
    color: #A78BFA;
}

[data-theme="dark"] .quick-action-icon.blue {
    background: rgba(18, 140, 126, 0.08);
    color: #128C7E;
}

[data-theme="dark"] .quick-action-icon.red {
    background: rgba(229, 57, 53, 0.08);
    color: #E53935;
}

.quick-action-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.quick-action-desc {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: -4px;
}

/* ============================================
   Section Headers
   ============================================ */
.section-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.section-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.section-link {
    font-size: 13px;
    font-weight: 600;
    color: var(--secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

    .section-link:hover {
        color: var(--secondary-light);
    }

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    border: none;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: var(--btn-primary-bg);
    color: var(--btn-primary-text);
    box-shadow: 0 2px 8px rgba(7, 94, 84, 0.25);
}

    .btn-primary:hover {
        background: var(--btn-primary-hover);
        box-shadow: 0 4px 12px rgba(7, 94, 84, 0.35);
        transform: translateY(-1px);
    }

.btn-ntn {
    background: var(--btn-ntn-bg);
    color: var(--btn-ntn-text);
    box-shadow: 0 2px 8px rgba(198, 40, 40, 0.25);
}

    .btn-ntn:hover {
        background: var(--btn-ntn-hover);
        box-shadow: 0 4px 12px rgba(198, 40, 40, 0.35);
        transform: translateY(-1px);
    }

.btn-secondary {
    background: var(--btn-secondary-bg);
    color: var(--btn-secondary-text);
}

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

.btn-accent {
    background: linear-gradient(135deg, #25D366, #128C7E);
    color: #FFFFFF;
    box-shadow: 0 2px 8px rgba(37, 211, 102, 0.3);
}

    .btn-accent:hover {
        box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
        transform: translateY(-1px);
    }

.btn-danger {
    background: var(--danger);
    color: #FFFFFF;
}

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

.btn-purple {
    background: linear-gradient(135deg, #7C3AED, #8B5CF6);
    color: #FFFFFF;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.3);
}

    .btn-purple:hover {
        box-shadow: 0 4px 12px rgba(139, 92, 246, 0.4);
        transform: translateY(-1px);
    }

.btn-lg {
    padding: 14px 28px;
    font-size: 15px;
    border-radius: var(--radius-lg);
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-md);
}

/* ============================================
   Forms
   ============================================ */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 11px 16px;
    border-radius: var(--radius-md);
    border: 1.5px solid var(--input-border);
    background: var(--input-bg);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: all var(--transition-fast);
}

    .form-input::placeholder {
        color: var(--input-placeholder);
    }

    .form-input:focus {
        border-color: var(--input-border-focus);
        box-shadow: 0 0 0 3px rgba(18, 140, 126, 0.12);
    }

.form-input-icon {
    position: relative;
}

    .form-input-icon input {
        padding-right: 44px;
    }

    .form-input-icon .input-icon-btn {
        position: absolute;
        right: 4px;
        top: 50%;
        transform: translateY(-50%);
        width: 36px;
        height: 36px;
        border-radius: var(--radius-sm);
        border: none;
        background: transparent;
        color: var(--text-muted);
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: color var(--transition-fast);
    }

        .form-input-icon .input-icon-btn:hover {
            color: var(--text-primary);
        }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    cursor: pointer;
}

    .form-checkbox input[type="checkbox"] {
        width: 18px;
        height: 18px;
        border-radius: 4px;
        border: 2px solid var(--input-border);
        appearance: none;
        -webkit-appearance: none;
        cursor: pointer;
        margin-top: 1px;
        flex-shrink: 0;
        transition: all var(--transition-fast);
        background: var(--input-bg);
    }

        .form-checkbox input[type="checkbox"]:checked {
            background: var(--secondary);
            border-color: var(--secondary);
            background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3e%3c/svg%3e");
            background-size: 12px;
            background-repeat: no-repeat;
            background-position: center;
        }

.form-checkbox-label {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.4;
}

    .form-checkbox-label a {
        color: var(--secondary);
        font-weight: 600;
    }

/* Password Strength */
.password-strength {
    margin-top: 8px;
}

.password-strength-bar {
    height: 4px;
    border-radius: 2px;
    background: var(--border-color);
    overflow: hidden;
    margin-bottom: 4px;
}

.password-strength-fill {
    height: 100%;
    border-radius: 2px;
    width: 0%;
    transition: width var(--transition-normal), background var(--transition-normal);
}

    .password-strength-fill.weak {
        width: 33%;
        background: #E53935;
    }

    .password-strength-fill.medium {
        width: 66%;
        background: #F59E0B;
    }

    .password-strength-fill.strong {
        width: 100%;
        background: #25D366;
    }

.password-strength-text {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
}

    .password-strength-text.weak {
        color: #E53935;
    }

    .password-strength-text.medium {
        color: #F59E0B;
    }

    .password-strength-text.strong {
        color: #25D366;
    }

/* ============================================
   Register Page - Split Layout
   Green-to-Red gradient panel
   ============================================ */
.register-layout {
    display: flex;
    min-height: 100vh;
}

.register-left {
    flex: 1;
    background: var(--register-gradient);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 40px;
    position: relative;
    overflow: hidden;
}

    .register-left::before {
        content: '';
        position: absolute;
        inset: 0;
        background-image: radial-gradient(circle at 20% 30%, rgba(255,255,255,0.1) 0%, transparent 50%), radial-gradient(circle at 80% 70%, rgba(255,255,255,0.08) 0%, transparent 50%), radial-gradient(circle at 50% 50%, rgba(255,255,255,0.05) 0%, transparent 70%);
        pointer-events: none;
    }

    /* Decorative circles */
    .register-left .circle {
        position: absolute;
        border-radius: var(--radius-full);
        border: 1px solid rgba(255, 255, 255, var(--register-pattern-opacity));
        pointer-events: none;
    }

    .register-left .circle-1 {
        width: 300px;
        height: 300px;
        top: -60px;
        right: -80px;
        border-width: 2px;
        border-color: rgba(255, 255, 255, 0.08);
    }

    .register-left .circle-2 {
        width: 200px;
        height: 200px;
        bottom: 10%;
        left: -50px;
        border-width: 2px;
        border-color: rgba(255, 255, 255, 0.06);
    }

    .register-left .circle-3 {
        width: 120px;
        height: 120px;
        top: 30%;
        right: 15%;
        background: rgba(255, 255, 255, 0.04);
        border: none;
    }

    .register-left .circle-4 {
        width: 80px;
        height: 80px;
        bottom: 25%;
        right: 30%;
        background: rgba(198, 40, 40, 0.15);
        border: none;
    }

    .register-left .circle-5 {
        width: 400px;
        height: 400px;
        bottom: -120px;
        right: -100px;
        border-width: 1px;
        border-color: rgba(255, 255, 255, 0.05);
    }

    .register-left .circle-6 {
        width: 160px;
        height: 160px;
        top: 15%;
        left: 10%;
        background: rgba(198, 40, 40, 0.1);
        border: none;
    }

.register-branding {
    position: relative;
    z-index: 1;
    text-align: center;
    color: #FFFFFF;
}

.register-branding-logo {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 800;
    margin: 0 auto 24px;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.register-branding h1 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
    line-height: 1.2;
}

    /* NTN in RED on the register panel */
    .register-branding h1 .ntn-highlight {
        color: #FFD54F;
        text-shadow: 0 2px 8px rgba(0,0,0,0.3);
    }

.register-branding p {
    font-size: 16px;
    opacity: 0.85;
    max-width: 360px;
    line-height: 1.6;
}

.register-features {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    z-index: 1;
}

.register-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
}

    .register-feature i {
        width: 28px;
        height: 28px;
        background: rgba(255, 255, 255, 0.15);
        border-radius: var(--radius-sm);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 14px;
        flex-shrink: 0;
    }

.register-right {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    background: var(--bg-main);
    position: relative;
}

.register-form-container {
    width: 100%;
    max-width: 440px;
}

.register-form-header {
    margin-bottom: 32px;
}

    .register-form-header h2 {
        font-size: 26px;
        font-weight: 800;
        color: var(--text-primary);
        margin-bottom: 8px;
    }

    .register-form-header p {
        font-size: 14px;
        color: var(--text-muted);
    }

.register-form-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 14px;
    color: var(--text-muted);
}

    .register-form-footer a {
        color: var(--secondary);
        font-weight: 600;
    }

.register-theme-toggle {
    position: absolute;
    top: 24px;
    right: 24px;
}

/* ============================================
   Chat / Messages Page
   ============================================ */
.chat-layout {
    display: flex;
    height: calc(100vh - var(--topbar-height));
    margin-top: var(--topbar-height);
    background: var(--bg-main);
}

.chat-sidebar {
    width: var(--chat-panel-width);
    background: var(--surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.chat-sidebar-header {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}

.chat-sidebar-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.chat-sidebar-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.chat-sidebar-title-row .chat-sidebar-title {
    margin-bottom: 0;
}

/* New Chat button: NTN red */
.btn-new-chat {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: var(--radius-md);
    border: none;
    background: var(--secondary);
    color: #FFFFFF;
    font-size: 12px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-fast);
}

    .btn-new-chat:hover {
        background: var(--secondary-light);
        transform: translateY(-1px);
        box-shadow: 0 2px 8px rgba(198, 40, 40, 0.25);
    }

.chat-search {
    position: relative;
}

    .chat-search input {
        width: 100%;
        padding: 9px 16px 9px 40px;
        border-radius: var(--radius-lg);
        border: none;
        background: var(--chat-input-bg);
        color: var(--text-primary);
        font-size: 13px;
        font-family: inherit;
        outline: none;
        transition: all var(--transition-fast);
    }

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

        .chat-search input:focus {
            box-shadow: 0 0 0 2px rgba(18, 140, 126, 0.15);
        }

    .chat-search i {
        position: absolute;
        left: 14px;
        top: 50%;
        transform: translateY(-50%);
        color: var(--text-muted);
        font-size: 14px;
    }

.chat-conversations {
    flex: 1;
    overflow-y: auto;
}

.chat-conversation-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    cursor: pointer;
    transition: background var(--transition-fast);
    border-bottom: 1px solid var(--divider);
    position: relative;
}

    .chat-conversation-item:hover {
        background: var(--surface-hover);
    }

    .chat-conversation-item.active {
        background: var(--surface-active);
    }

[data-theme="dark"] .chat-conversation-item.active {
    background: var(--sidebar-active);
}

.chat-conv-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, #128C7E, #25D366);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-weight: 600;
    font-size: 16px;
    flex-shrink: 0;
}

    .chat-conv-avatar.red {
        background: linear-gradient(135deg, #C62828, #E53935);
    }

    .chat-conv-avatar.teal {
        background: linear-gradient(135deg, #075E54, #128C7E);
    }

    .chat-conv-avatar.orange {
        background: linear-gradient(135deg, #D97706, #F59E0B);
    }

    .chat-conv-avatar.purple {
        background: linear-gradient(135deg, #7C3AED, #8B5CF6);
    }

    .chat-conv-avatar.amber {
        background: linear-gradient(135deg, #D97706, #FBBF24);
    }

.chat-conv-content {
    flex: 1;
    min-width: 0;
}

.chat-conv-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 3px;
}

.chat-conv-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-conv-time {
    font-size: 11px;
    color: var(--text-muted);
    flex-shrink: 0;
    margin-left: 8px;
}

/* Unread time: NTN red instead of green */
.chat-conv-unread .chat-conv-time {
    color: var(--secondary);
    font-weight: 600;
}

.chat-conv-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-conv-message {
    font-size: 13px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

/* Unread badge: NTN red */
.chat-conv-badge {
    background: var(--unread-badge);
    color: #FFFFFF;
    font-size: 11px;
    font-weight: 700;
    padding: 1px 7px;
    border-radius: 10px;
    min-width: 20px;
    text-align: center;
    flex-shrink: 0;
    margin-left: 8px;
}

/* Status indicators */
.chat-conv-status {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    margin-right: 6px;
    flex-shrink: 0;
}

    .chat-conv-status.online {
        background: #25D366;
    }

    .chat-conv-status.away {
        background: #F59E0B;
    }

    .chat-conv-status.offline {
        background: var(--text-muted);
    }

    .chat-conv-status.busy {
        background: #C62828;
    }

/* Chat Detail */
.chat-detail {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--chat-bg);
    position: relative;
}

    /* Chat wallpaper pattern */
    .chat-detail::before {
        content: '';
        position: absolute;
        inset: 0;
        opacity: 0.3;
        background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23000000' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
        pointer-events: none;
        z-index: 0;
    }

/* NTN red accent line on chat header */
.chat-detail-header {
    padding: 12px 20px;
    background: var(--chat-header-bg);
    display: flex;
    align-items: center;
    gap: 14px;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
}

    .chat-detail-header::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 2px;
        background: linear-gradient(90deg, var(--secondary), var(--secondary-light), transparent);
    }

.chat-detail-avatar {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, #128C7E, #25D366);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    font-weight: 600;
    font-size: 15px;
    flex-shrink: 0;
}

.chat-detail-info {
    flex: 1;
}

.chat-detail-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.chat-detail-status {
    font-size: 12px;
    color: var(--text-muted);
}

.chat-detail-actions {
    display: flex;
    gap: 4px;
}

.chat-detail-btn {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: all var(--transition-fast);
}

    .chat-detail-btn:hover {
        background: var(--surface-hover);
        color: var(--text-primary);
    }

/* Messages */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px 60px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    position: relative;
    z-index: 1;
}

.chat-date-divider {
    text-align: center;
    margin: 16px 0;
}

    .chat-date-divider span {
        background: rgba(255, 255, 255, 0.9);
        padding: 5px 14px;
        border-radius: 8px;
        font-size: 12px;
        font-weight: 500;
        color: var(--text-muted);
        box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
    }

[data-theme="dark"] .chat-date-divider span {
    background: var(--surface);
    color: var(--text-muted);
}

.chat-message {
    display: flex;
    margin-bottom: 2px;
}

    .chat-message.sent {
        justify-content: flex-end;
    }

    .chat-message.received {
        justify-content: flex-start;
    }

.chat-bubble {
    max-width: 65%;
    padding: 8px 12px;
    border-radius: var(--radius-md);
    position: relative;
    font-size: 14px;
    line-height: 1.5;
    word-wrap: break-word;
}

.chat-message.sent .chat-bubble {
    background: var(--chat-bubble-sent);
    color: var(--text-primary);
    border-top-right-radius: 4px;
    box-shadow: var(--chat-bubble-sent-shadow);
}

.chat-message.received .chat-bubble {
    background: var(--chat-bubble-received);
    color: var(--text-primary);
    border-top-left-radius: 4px;
    box-shadow: var(--chat-bubble-received-shadow);
}

.chat-bubble-text {
    margin-bottom: 2px;
}

.chat-bubble-meta {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
    margin-top: 2px;
}

.chat-bubble-time {
    font-size: 11px;
    color: var(--chat-timestamp);
}

[data-theme="dark"] .chat-message.sent .chat-bubble-time {
    color: rgba(255, 255, 255, 0.55);
}

.chat-bubble-status {
    font-size: 14px;
    color: #53BDEB;
}

    .chat-bubble-status.sent-tick {
        color: var(--text-muted);
    }

/* Chat Input */
.chat-input-area {
    padding: 12px 16px;
    background: var(--chat-input-bg);
    display: flex;
    align-items: center;
    gap: 10px;
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border-color);
}

.chat-input-btn {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

    .chat-input-btn:hover {
        color: var(--text-secondary);
    }

.chat-input-field {
    flex: 1;
    padding: 10px 16px;
    border-radius: var(--radius-lg);
    border: none;
    background: var(--surface);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    min-height: 42px;
    resize: none;
    transition: box-shadow var(--transition-fast);
}

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

    .chat-input-field:focus {
        box-shadow: 0 0 0 2px rgba(18, 140, 126, 0.1);
    }

/* Send button stays green (WhatsApp signature) */
.chat-send-btn {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    border: none;
    background: var(--accent);
    color: #FFFFFF;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

    .chat-send-btn:hover {
        background: var(--accent-dark);
        transform: scale(1.05);
    }

/* Empty chat state */
.chat-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}

.chat-empty-icon {
    font-size: 64px;
    color: var(--border-color);
    margin-bottom: 16px;
}

.chat-empty h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.chat-empty p {
    font-size: 14px;
    max-width: 360px;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: 16px 24px;
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    background: var(--surface);
    margin-top: auto;
}

    .footer a {
        color: var(--secondary);
        font-weight: 600;
    }

/* ============================================
   Page Header
   ============================================ */
.page-header {
    margin-bottom: 24px;
}

.page-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.page-subtitle {
    font-size: 14px;
    color: var(--text-muted);
}

/* ============================================
   Utility Classes
   ============================================ */
.text-primary {
    color: var(--text-primary);
}

.text-secondary {
    color: var(--text-secondary);
}

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

.text-accent {
    color: var(--accent);
}

.text-danger {
    color: var(--secondary);
}

.text-ntn {
    color: var(--secondary);
}

.text-purple {
    color: var(--info);
}

.text-amber {
    color: var(--warning);
}

.fw-500 {
    font-weight: 500;
}

.fw-600 {
    font-weight: 600;
}

.fw-700 {
    font-weight: 700;
}

.fw-800 {
    font-weight: 800;
}

.mb-0 {
    margin-bottom: 0;
}

.mb-8 {
    margin-bottom: 8px;
}

.mb-16 {
    margin-bottom: 16px;
}

.mb-24 {
    margin-bottom: 24px;
}

.mt-8 {
    margin-top: 8px;
}

.mt-16 {
    margin-top: 16px;
}

.mt-24 {
    margin-top: 24px;
}

/* ============================================
   Responsive
   ============================================ */

/* Tablet & below */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .chat-messages {
        padding: 16px 20px;
    }

    .chat-sidebar {
        width: 300px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

        .sidebar.open {
            transform: translateX(0);
        }

    .sidebar-overlay.active {
        display: block;
    }

    .sidebar-toggle {
        display: flex;
    }

    .app-main {
        margin-left: 0;
    }

    .topbar {
        left: 0;
        padding: 0 16px;
        padding-left: 64px;
    }

    .topbar-search {
        display: none;
    }

    .topbar-user-name {
        display: none;
    }

    .app-content {
        padding: 16px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .quick-actions-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    /* Register - single column */
    .register-layout {
        flex-direction: column;
    }

    .register-left {
        display: none;
    }

    .register-right {
        padding: 24px 20px;
    }

    .register-theme-toggle {
        top: 16px;
        right: 16px;
    }

    /* Chat mobile */
    .chat-layout {
        flex-direction: column;
    }

    .chat-sidebar {
        width: 100%;
        height: 100%;
        position: absolute;
        z-index: 10;
    }

        .chat-sidebar.hidden-mobile {
            display: none;
        }

    .chat-detail {
        width: 100%;
    }

        .chat-detail.hidden-mobile {
            display: none;
        }

    .chat-messages {
        padding: 12px 16px;
    }

    .chat-bubble {
        max-width: 85%;
    }

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

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .quick-actions-grid {
        grid-template-columns: 1fr;
    }

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

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-16px);
    }

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

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

    50% {
        opacity: 0.5;
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.4s ease forwards;
}

.animate-fade-in {
    animation: fadeIn 0.3s ease forwards;
}

.animate-slide-in {
    animation: slideInLeft 0.3s ease forwards;
}

/* Staggered animation delays */
.delay-1 {
    animation-delay: 0.05s;
    opacity: 0;
}

.delay-2 {
    animation-delay: 0.1s;
    opacity: 0;
}

.delay-3 {
    animation-delay: 0.15s;
    opacity: 0;
}

.delay-4 {
    animation-delay: 0.2s;
    opacity: 0;
}

.delay-5 {
    animation-delay: 0.25s;
    opacity: 0;
}