/* =============================================
   RxStock Web - Design System
   ระบบคลังวัสดุโรงพยาบาล
   ============================================= */

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

/* === CSS Variables / Design Tokens === */
:root {
    color-scheme: dark;
    /* Colors - Hospital Blue-Purple Theme */
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.4);

    --secondary: #8b5cf6;
    --secondary-light: #a78bfa;

    --accent-cyan: #06b6d4;
    --accent-emerald: #10b981;
    --accent-amber: #f59e0b;
    --accent-rose: #f43f5e;
    --accent-blue: #3b82f6;

    /* Background */
    --bg-primary: #0a0a1a;
    --bg-secondary: #111127;
    --bg-tertiary: #1a1a3e;
    --bg-card: rgba(26, 26, 62, 0.6);
    --bg-card-hover: rgba(26, 26, 62, 0.85);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-input: rgba(255, 255, 255, 0.05);
    --bg-sidebar: #0d0d24;

    /* Text */
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-accent: #c4b5fd;

    /* Borders */
    --border-color: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.12);
    --border-focus: var(--primary);

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px var(--primary-glow);

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Typography */
    --font-main: 'Noto Sans Thai', 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Layout */
    --sidebar-width: 270px;
    --sidebar-collapsed: 72px;
    --header-height: 64px;
    --content-max-width: 1400px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.04);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: 16px;
}

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

html {
    font-size: 15px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Background ambient effect */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.06) 0%, transparent 50%),
                radial-gradient(circle at 50% 80%, rgba(6, 182, 212, 0.04) 0%, transparent 50%);
    z-index: -1;
    animation: ambientShift 20s ease-in-out infinite alternate;
}

@keyframes ambientShift {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(-2%, -2%) rotate(3deg); }
}

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

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

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

/* --- Sidebar --- */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: width var(--transition-normal), transform var(--transition-normal);
    overflow: hidden;
}

.sidebar-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    min-height: var(--header-height);
}

.sidebar-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 800;
    color: white;
    flex-shrink: 0;
    box-shadow: var(--shadow-glow);
}

.sidebar-title {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-title h1 {
    font-size: 1.05rem;
    font-weight: 700;
    white-space: nowrap;
    color: var(--text-primary);
    line-height: 1.3;
}

.sidebar-title span {
    font-size: 0.72rem;
    color: var(--text-muted);
    white-space: nowrap;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md) var(--space-sm);
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: var(--radius-full); }

.nav-section {
    margin-bottom: var(--space-lg);
}

.nav-section-title {
    font-size: 0.68rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-xs);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: 10px var(--space-md);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
    margin-bottom: 2px;
}

.nav-item:hover {
    background: var(--glass-bg);
    color: var(--text-primary);
    transform: translateX(2px);
}

.nav-item.active {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(139, 92, 246, 0.1));
    color: var(--primary-light);
    font-weight: 600;
    box-shadow: inset 3px 0 0 var(--primary);
}

.nav-item i {
    font-size: 1.15rem;
    width: 22px;
    text-align: center;
    flex-shrink: 0;
    opacity: 0.8;
}

.nav-item.active i { opacity: 1; }

.nav-item .badge {
    margin-left: auto;
    background: var(--accent-rose);
    color: white;
    font-size: 0.65rem;
    padding: 2px 7px;
    border-radius: var(--radius-full);
    font-weight: 700;
}

/* Sidebar footer */
.sidebar-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--border-color);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.sidebar-user:hover { background: var(--glass-bg); }

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--accent-cyan), var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.user-info {
    overflow: hidden;
}

.user-info .name {
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-info .role {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* --- Main Content --- */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-left var(--transition-normal);
}

/* Top Header */
.top-header {
    height: var(--header-height);
    padding: 0 var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    background: rgba(10, 10, 26, 0.8);
    backdrop-filter: blur(var(--glass-blur));
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.3rem;
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.menu-toggle:hover {
    color: var(--text-primary);
    background: var(--glass-bg);
}

.page-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.header-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.15rem;
    cursor: pointer;
    padding: var(--space-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.header-btn:hover {
    color: var(--text-primary);
    background: var(--glass-bg);
}

.header-btn .dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent-rose);
}

/* --- Page Content --- */
.page-content {
    padding: var(--space-xl);
    max-width: var(--content-max-width);
}

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

.card:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow-md);
}

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

.card-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.card-title i {
    color: var(--primary-light);
}

.card-body {
    padding: var(--space-xl);
}

.card-footer {
    padding: var(--space-md) var(--space-xl);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Summary Cards (Dashboard) */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.summary-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

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

.summary-card:nth-child(1)::before { background: linear-gradient(90deg, var(--primary), var(--secondary)); }
.summary-card:nth-child(2)::before { background: linear-gradient(90deg, var(--accent-emerald), var(--accent-cyan)); }
.summary-card:nth-child(3)::before { background: linear-gradient(90deg, var(--accent-amber), #fb923c); }
.summary-card:nth-child(4)::before { background: linear-gradient(90deg, var(--accent-rose), #e879f9); }

.summary-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-light);
}

.summary-card .sc-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: var(--space-md);
}

.summary-card:nth-child(1) .sc-icon { background: rgba(99, 102, 241, 0.15); color: var(--primary-light); }
.summary-card:nth-child(2) .sc-icon { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); }
.summary-card:nth-child(3) .sc-icon { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }
.summary-card:nth-child(4) .sc-icon { background: rgba(244, 63, 94, 0.15); color: var(--accent-rose); }

.summary-card .sc-label {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
    font-weight: 500;
}

.summary-card .sc-value {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.summary-card .sc-change {
    font-size: 0.75rem;
    margin-top: var(--space-sm);
    display: flex;
    align-items: center;
    gap: 4px;
}

.sc-change.up { color: var(--accent-emerald); }
.sc-change.down { color: var(--accent-rose); }

/* === Data Tables === */
.table-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
}

.table-toolbar-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.search-box {
    position: relative;
    min-width: 280px;
}

.search-box input {
    width: 100%;
    padding: 10px 14px 10px 40px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.88rem;
    font-family: var(--font-main);
    transition: all var(--transition-fast);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    background: rgba(255, 255, 255, 0.08);
}

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

.search-box i {
    position: absolute;
    left: 13px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1rem;
}

.filter-select {
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.88rem;
    font-family: var(--font-main);
    cursor: pointer;
    transition: all var(--transition-fast);
    appearance: none;
    min-width: 160px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.filter-select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: var(--space-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.88rem;
    min-width: 800px; /* Ensure table doesn't squish too much on mobile */
}

.data-table thead {
    position: sticky;
    top: 0;
    z-index: 5;
}

.data-table th {
    background: rgba(99, 102, 241, 0.08);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 12px 16px;
    text-align: left;
    white-space: nowrap;
    border-bottom: 1px solid var(--border-color);
}

.data-table th:first-child { border-radius: var(--radius-md) 0 0 0; }
.data-table th:last-child { border-radius: 0 var(--radius-md) 0 0; }

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
    transition: background var(--transition-fast);
}

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

.data-table tbody tr:hover {
    background: rgba(99, 102, 241, 0.04);
}

.data-table tbody tr:hover td {
    color: var(--text-primary);
}

.data-table .text-right { text-align: right; }
.data-table .text-center { text-align: center; }
.data-table .text-mono { font-family: var(--font-mono); font-size: 0.82rem; }

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 9px 18px;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    font-weight: 600;
    font-family: var(--font-main);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    line-height: 1.4;
}

.btn i { font-size: 1rem; }

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--glass-bg);
    border-color: var(--border-light);
}

.btn-success {
    background: linear-gradient(135deg, var(--accent-emerald), #059669);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--accent-rose), #dc2626);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, var(--accent-amber), #d97706);
    color: white;
}

.btn-sm {
    padding: 5px 12px;
    font-size: 0.78rem;
    border-radius: var(--radius-sm);
}

.btn-icon {
    padding: 8px;
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-icon:hover {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--primary);
}

.btn-group {
    display: flex;
    gap: 4px;
}

/* === Badges / Status === */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-primary { background: rgba(99, 102, 241, 0.15); color: var(--primary-light); }
.badge-success { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }
.badge-danger { background: rgba(244, 63, 94, 0.15); color: var(--accent-rose); }
.badge-info { background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); }

/* Stock level badges */
.stock-ok { color: var(--accent-emerald); }
.stock-low { color: var(--accent-amber); }
.stock-out { color: var(--accent-rose); }

/* === 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-normal);
    padding: var(--space-lg);
}

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

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 640px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-lg);
}

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

.modal-lg { max-width: 900px; }

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

.modal-title {
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-primary);
    background: var(--glass-bg);
}

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

.modal-footer {
    padding: var(--space-md) var(--space-xl);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-sm);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-row-3 {
    grid-template-columns: 1fr 1fr 1fr;
}

.form-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.form-label .required {
    color: var(--accent-rose);
    margin-left: 2px;
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.88rem;
    font-family: var(--font-main);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
    background: rgba(255, 255, 255, 0.08);
}

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

/* Fix white background in select options on dark theme */
select.form-control, select.filter-select {
    color-scheme: dark !important;
}
select.form-control option,
select.filter-select option {
    background-color: #1a1a24 !important;
    color: #e2e8f0 !important;
}

textarea.form-control {
    min-height: 80px;
    resize: vertical;
}

.form-control[readonly] {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-help {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* === Pagination === */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: var(--space-xl);
}

.page-btn {
    padding: 7px 13px;
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.page-btn:hover {
    color: var(--text-primary);
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.page-btn.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.page-dots {
    color: var(--text-muted);
    padding: 0 var(--space-sm);
}

/* === Toast / Notification === */
.toast-container {
    position: fixed;
    top: var(--space-xl);
    right: var(--space-xl);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.toast {
    padding: 14px 20px;
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    font-size: 0.88rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    min-width: 300px;
    animation: toastIn 0.3s ease, toastOut 0.3s ease 3s forwards;
    backdrop-filter: blur(var(--glass-blur));
}

.toast-success { border-left: 4px solid var(--accent-emerald); }
.toast-error { border-left: 4px solid var(--accent-rose); }
.toast-warning { border-left: 4px solid var(--accent-amber); }
.toast-info { border-left: 4px solid var(--accent-cyan); }

@keyframes toastIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes toastOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

/* === Loading Spinner === */
.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 26, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 20;
    border-radius: inherit;
}

/* === Empty State === */
.empty-state {
    text-align: center;
    padding: var(--space-2xl);
    color: var(--text-muted);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    opacity: 0.4;
}

.empty-state h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
    color: var(--text-secondary);
}

.empty-state p {
    font-size: 0.88rem;
}

/* === Charts Grid === */
.charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.chart-card h3 {
    font-size: 0.92rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-primary);
}

/* === Import/Upload Area === */
.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    text-align: center;
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.upload-zone i {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.upload-zone h3 {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.upload-zone p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.upload-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

/* === Login Page === */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    padding: var(--space-xl);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    backdrop-filter: blur(var(--glass-blur));
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent-cyan));
}

.login-logo {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.login-logo .logo-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: white;
    margin-bottom: var(--space-md);
    box-shadow: var(--shadow-glow);
    animation: logoPulse 3s ease-in-out infinite;
}

@keyframes logoPulse {
    0%, 100% { box-shadow: 0 0 20px var(--primary-glow); }
    50% { box-shadow: 0 0 40px var(--primary-glow), 0 0 60px rgba(139, 92, 246, 0.2); }
}

.login-logo h2 {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.login-logo p {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.login-form .form-group {
    margin-bottom: var(--space-lg);
}

.login-form .form-control {
    padding: 12px 16px;
    font-size: 0.92rem;
}

.login-btn {
    width: 100%;
    padding: 13px;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.login-error {
    background: rgba(244, 63, 94, 0.1);
    border: 1px solid rgba(244, 63, 94, 0.2);
    color: var(--accent-rose);
    padding: 10px 14px;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    margin-bottom: var(--space-lg);
    text-align: center;
}

/* === Responsive === */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
    }
    .menu-toggle {
        display: block;
    }
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .page-content {
        padding: var(--space-md);
    }
    .summary-cards {
        grid-template-columns: 1fr 1fr;
    }
    .table-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
    .search-box {
        min-width: 100%;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .form-row-3 {
        grid-template-columns: 1fr;
    }
    .modal {
        max-width: 100%;
        margin: var(--space-md);
    }
}

@media (max-width: 480px) {
    .summary-cards {
        grid-template-columns: 1fr;
    }
    .data-table {
        font-size: 0.82rem;
    }
    .data-table th,
    .data-table td {
        padding: 8px 10px;
    }
}

/* === Utility Classes === */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.82rem; }
.font-mono { font-family: var(--font-mono); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.w-full { width: 100%; }
.hidden { display: none !important; }
.relative { position: relative; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* Selection */
::selection {
    background: rgba(99, 102, 241, 0.3);
    color: var(--text-primary);
}

/* Focus visible */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Import table select */
.import-table-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.import-table-card {
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.import-table-card:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.import-table-card.selected {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.import-table-card i {
    font-size: 1.8rem;
    color: var(--primary-light);
    margin-bottom: var(--space-sm);
}

.import-table-card h4 {
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.import-table-card p {
    font-size: 0.72rem;
    color: var(--text-muted);
}

/* Preview table */
.preview-table-wrapper {
    max-height: 400px;
    overflow: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-top: var(--space-md);
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--space-lg);
}

.tab-btn {
    padding: 10px 20px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-main);
}

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

.tab-btn.active {
    color: var(--primary-light);
    border-bottom-color: var(--primary);
}

/* Stat bar */
.stat-bar {
    display: flex;
    gap: var(--space-xl);
    padding: var(--space-lg) 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: var(--space-lg);
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-item .stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.stat-item .stat-value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Alert */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.alert-info {
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.2);
    color: var(--accent-cyan);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: var(--accent-emerald);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
    color: var(--accent-amber);
}

.alert-danger {
    background: rgba(244, 63, 94, 0.1);
    border: 1px solid rgba(244, 63, 94, 0.2);
    color: var(--accent-rose);
}