/* ============================================================
   UZHAVA - Design System CSS
   "Anybody Can Farm" - Agricultural SaaS Platform
   ============================================================ */

/* ============================================================
   CSS Variables (Design Tokens)
   ============================================================ */
:root {
    /* Primary Colors - Earthy Green */
    --primary-50: #f0fdf4;
    --primary-100: #dcfce7;
    --primary-200: #bbf7d0;
    --primary-300: #86efac;
    --primary-400: #4ade80;
    --primary-500: #22c55e;
    --primary-600: #16a34a;
    --primary-700: #15803d;
    --primary-800: #166534;
    --primary-900: #14532d;

    /* Secondary - Warm Earth */
    --secondary-50: #fefce8;
    --secondary-100: #fef9c3;
    --secondary-200: #fef08a;
    --secondary-300: #fde047;
    --secondary-400: #facc15;
    --secondary-500: #eab308;
    --secondary-600: #ca8a04;
    --secondary-700: #a16207;
    --secondary-800: #854d0e;
    --secondary-900: #713f12;

    /* Accent - Sky Blue */
    --accent-50: #f0f9ff;
    --accent-100: #e0f2fe;
    --accent-200: #bae6fd;
    --accent-300: #7dd3fc;
    --accent-400: #38bdf8;
    --accent-500: #0ea5e9;
    --accent-600: #0284c7;
    --accent-700: #0369a1;

    /* Neutrals */
    --neutral-50: #fafafa;
    --neutral-100: #f5f5f5;
    --neutral-200: #e5e5e5;
    --neutral-300: #d4d4d4;
    --neutral-400: #a3a3a3;
    --neutral-500: #737373;
    --neutral-600: #525252;
    --neutral-700: #404040;
    --neutral-800: #262626;
    --neutral-900: #171717;

    /* Semantic Colors */
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    /* Surfaces */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-sidebar: #0f172a;
    --bg-sidebar-active: rgba(34, 197, 94, 0.15);

    /* Text */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-tertiary: #94a3b8;
    --text-inverse: #ffffff;
    --text-sidebar: #cbd5e1;
    --text-sidebar-active: #22c55e;

    /* Borders */
    --border-color: #e2e8f0;
    --border-focus: #22c55e;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 20px rgba(34, 197, 94, 0.3);

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    /* Transition */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Layout */
    --sidebar-width: 260px;
    --sidebar-collapsed: 70px;
    --header-height: 64px;
    --content-max-width: 1400px;
}

/* Dark mode tokens */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    --bg-sidebar: #0a0f1a;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-tertiary: #64748b;
    --border-color: #334155;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--primary-600);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-700);
}

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

/* ============================================================
   Typography
   ============================================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.5rem;
}

h3 {
    font-size: 1.25rem;
}

h4 {
    font-size: 1.125rem;
}

h5 {
    font-size: 1rem;
}

h6 {
    font-size: 0.875rem;
}

.text-sm {
    font-size: 0.875rem;
}

.text-xs {
    font-size: 0.75rem;
}

.text-lg {
    font-size: 1.125rem;
}

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

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

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

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

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

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

/* ============================================================
   Buttons
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn--primary {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: var(--text-inverse);
}

.btn--primary:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    box-shadow: var(--shadow-glow);
}

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

.btn--secondary:hover {
    background: var(--neutral-200);
}

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

.btn--outline {
    background: transparent;
    color: var(--primary-600);
    border: 1.5px solid var(--primary-500);
}

.btn--outline:hover {
    background: var(--primary-50);
}

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

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

.btn--sm {
    padding: var(--space-2) var(--space-4);
    font-size: 0.8125rem;
}

.btn--lg {
    padding: var(--space-4) var(--space-8);
    font-size: 1rem;
}

.btn--block {
    width: 100%;
}

.btn--icon {
    padding: var(--space-2);
    border-radius: var(--radius-md);
    width: 36px;
    height: 36px;
}

/* ============================================================
   Form Controls
   ============================================================ */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.form-control {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
}

.form-control:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}

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

.form-control--error {
    border-color: var(--danger);
}

.form-control--error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%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;
    background-size: 16px;
    padding-right: 40px;
}

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

.form-hint {
    font-size: 0.8125rem;
    color: var(--text-tertiary);
    margin-top: var(--space-1);
}

.form-error {
    font-size: 0.8125rem;
    color: var(--danger);
    margin-top: var(--space-1);
}

.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-500);
}

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

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

.card__header {
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card__body {
    padding: var(--space-6);
}

.card__footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

/* ============================================================
   Badges
   ============================================================ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 2px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge--success {
    background: #dcfce7;
    color: #15803d;
}

.badge--warning {
    background: #fef3c7;
    color: #92400e;
}

.badge--danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge--info {
    background: #dbeafe;
    color: #1e40af;
}

.badge--secondary {
    background: #f1f5f9;
    color: #475569;
}

/* ============================================================
   Alerts
   ============================================================ */
.alert {
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-5);
    font-size: 0.9375rem;
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

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

.alert--success {
    background: #f0fdf4;
    border-left: 4px solid var(--success);
    color: #15803d;
}

.alert--error {
    background: #fef2f2;
    border-left: 4px solid var(--danger);
    color: #991b1b;
}

.alert--warning {
    background: #fffbeb;
    border-left: 4px solid var(--warning);
    color: #92400e;
}

.alert--info {
    background: #eff6ff;
    border-left: 4px solid var(--info);
    color: #1e40af;
}

/* ============================================================
   Stats Cards
   ============================================================ */
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-5);
    transition: all var(--transition-base);
}

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

.stat-card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-card__icon--green {
    background: linear-gradient(135deg, #dcfce7, #bbf7d0);
}

.stat-card__icon--blue {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
}

.stat-card__icon--amber {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
}

.stat-card__icon--red {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
}

.stat-card__icon--purple {
    background: linear-gradient(135deg, #f3e8ff, #e9d5ff);
}

.stat-card__number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-card__label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-top: var(--space-1);
}

/* ============================================================
   Tables
   ============================================================ */
.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--border-color);
}

.table td {
    padding: var(--space-3) var(--space-4);
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

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

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

/* ============================================================
   Layout: Auth Pages
   ============================================================ */
.auth-page {
    min-height: 100vh;
    display: flex;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a2f 50%, #14532d 100%);
    position: relative;
    overflow: hidden;
}

.auth-page::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(34, 197, 94, 0.08) 0%, transparent 60%);
    animation: authPulse 8s ease-in-out infinite;
}

@keyframes authPulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 0.6;
    }

    50% {
        transform: scale(1.15);
        opacity: 1;
    }
}

.auth-page__left {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-16);
    color: white;
    position: relative;
    z-index: 1;
}

.auth-page__right {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-8);
    position: relative;
    z-index: 1;
}

.auth-page__brand {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #4ade80, #22c55e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--space-4);
}

.auth-page__tagline {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-8);
}

.auth-page__features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.auth-page__features li {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.auth-page__features li::before {
    content: '✓';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: rgba(34, 197, 94, 0.2);
    border-radius: var(--radius-full);
    color: #4ade80;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.auth-form-card {
    width: 100%;
    max-width: 440px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
    box-shadow: var(--shadow-xl);
}

.auth-form-card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.auth-form-card .subtitle {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: var(--space-8);
}

.auth-form-card .divider {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin: var(--space-6) 0;
    color: var(--text-tertiary);
    font-size: 0.8125rem;
}

.auth-form-card .divider::before,
.auth-form-card .divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-color);
}

.auth-links {
    text-align: center;
    margin-top: var(--space-6);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* ============================================================
   OTP Input
   ============================================================ */
.otp-input-group {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
}

.otp-input-group input {
    width: 50px;
    height: 56px;
    text-align: center;
    font-size: 1.5rem;
    font-weight: 600;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    outline: none;
    transition: all var(--transition-fast);
}

.otp-input-group input:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}

/* ============================================================
   Layout: Dashboard
   ============================================================ */
.dashboard-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    color: var(--text-sidebar);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    transition: width var(--transition-base);
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar__brand {
    padding: var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar__brand-logo {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-400), var(--primary-600));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.sidebar__brand-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
}

.sidebar__menu {
    padding: var(--space-4) var(--space-3);
    flex: 1;
    list-style: none;
}

.sidebar__menu-label {
    padding: var(--space-2) var(--space-4);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-tertiary);
    margin-top: var(--space-4);
}

.sidebar__menu-item {
    margin-bottom: 2px;
}

.sidebar__menu-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    color: var(--text-sidebar);
    font-size: 0.875rem;
    font-weight: 400;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.sidebar__menu-link:hover {
    background: rgba(255, 255, 255, 0.06);
    color: white;
}

.sidebar__menu-link.active {
    background: var(--bg-sidebar-active);
    color: var(--text-sidebar-active);
    font-weight: 500;
}

.sidebar__menu-icon {
    width: 20px;
    text-align: center;
    flex-shrink: 0;
    font-size: 1rem;
}

.sidebar__footer {
    padding: var(--space-4) var(--space-3);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

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

/* Header */
.header {
    height: var(--header-height);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: 0 var(--space-8);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header__left {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.header__right {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.header__title {
    font-size: 1.125rem;
    font-weight: 600;
}

.header__search {
    position: relative;
}

.header__search input {
    padding: var(--space-2) var(--space-4) var(--space-2) var(--space-10);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    width: 280px;
    background: var(--bg-secondary);
    outline: none;
    transition: all var(--transition-fast);
}

.header__search input:focus {
    border-color: var(--primary-500);
    width: 320px;
}

/* Avatar */
.avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.avatar--sm {
    width: 28px;
    height: 28px;
    font-size: 0.75rem;
}

.avatar--lg {
    width: 48px;
    height: 48px;
    font-size: 1.125rem;
}

.avatar--xl {
    width: 64px;
    height: 64px;
    font-size: 1.5rem;
}

.avatar--green {
    background: #dcfce7;
    color: #15803d;
}

.avatar--blue {
    background: #dbeafe;
    color: #1e40af;
}

.avatar--amber {
    background: #fef3c7;
    color: #92400e;
}

.avatar--red {
    background: #fee2e2;
    color: #991b1b;
}

/* Page Content */
.page-content {
    padding: var(--space-8);
    flex: 1;
    max-width: var(--content-max-width);
    width: 100%;
}

/* ============================================================
   Grid System
   ============================================================ */
.grid {
    display: grid;
    gap: var(--space-6);
}

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

.grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
    .grid--4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid--3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {

    .grid--4,
    .grid--3,
    .grid--2 {
        grid-template-columns: 1fr;
    }

    .auth-page {
        flex-direction: column;
    }

    .auth-page__left {
        display: none;
    }

    .auth-page__right {
        min-height: 100vh;
    }

    .sidebar {
        transform: translateX(-100%);
    }

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

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

/* ============================================================
   Utilities
   ============================================================ */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.gap-2 {
    gap: var(--space-2);
}

.gap-3 {
    gap: var(--space-3);
}

.gap-4 {
    gap: var(--space-4);
}

.gap-6 {
    gap: var(--space-6);
}

.mt-2 {
    margin-top: var(--space-2);
}

.mt-4 {
    margin-top: var(--space-4);
}

.mt-6 {
    margin-top: var(--space-6);
}

.mt-8 {
    margin-top: var(--space-8);
}

.mb-4 {
    margin-bottom: var(--space-4);
}

.mb-6 {
    margin-bottom: var(--space-6);
}

.p-4 {
    padding: var(--space-4);
}

.p-6 {
    padding: var(--space-6);
}

.w-full {
    width: 100%;
}

.hidden {
    display: none !important;
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ============================================================
   Loading & Spinner
   ============================================================ */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-500);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    backdrop-filter: blur(4px);
}

/* ============================================================
   Empty State
   ============================================================ */
.empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-8);
}

.empty-state__icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
}

.empty-state__title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
}

.empty-state__text {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: var(--space-6);
}

/* ============================================================
   Test Mode Banner
   ============================================================ */
.test-banner {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: #92400e;
    padding: var(--space-2) var(--space-4);
    text-align: center;
    font-size: 0.8125rem;
    font-weight: 500;
    position: sticky;
    top: 0;
    z-index: 200;
}

/* ============================================================
   Notification Bell
   ============================================================ */
.notification-bell {
    position: relative;
    cursor: pointer;
}

.notification-bell__count {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--danger);
    color: white;
    font-size: 0.625rem;
    font-weight: 700;
    min-width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
}

/* ============================================================
   Dropdown
   ============================================================ */
.dropdown {
    position: relative;
}

.dropdown__menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    padding: var(--space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
    z-index: 100;
}

.dropdown.open .dropdown__menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown__item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    font-size: 0.875rem;
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
    text-decoration: none;
}

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

.dropdown__divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--space-2) 0;
}

/* ============================================================
   Feature Toggle Switch
   ============================================================ */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-switch__slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--neutral-300);
    border-radius: var(--radius-full);
    transition: var(--transition-fast);
}

.toggle-switch__slider::before {
    content: '';
    position: absolute;
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-xs);
}

.toggle-switch input:checked+.toggle-switch__slider {
    background: var(--primary-500);
}

.toggle-switch input:checked+.toggle-switch__slider::before {
    transform: translateX(20px);
}

/* ============================================================
   Tabs
   ============================================================ */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    gap: 0;
    overflow-x: auto;
}

.tab {
    padding: var(--space-3) var(--space-6);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.tab.active {
    color: var(--primary-600);
    border-bottom-color: var(--primary-600);
}

/* ============================================================
   Phase 1 Additions
   ============================================================ */

/* Surface aliases (shorthand for bg-card / bg-secondary) */
:root {
    --surface: var(--bg-card, #ffffff);
    --surface-alt: var(--bg-secondary, #f8fafc);
    --border: var(--border-color, #e2e8f0);
    --primary-light: var(--primary-50, #f0fdf4);
    --primary-dark: var(--primary-700, #15803d);
    --text-muted: var(--text-secondary, #64748b);
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
}

/* Form Row — two-column grid for pairs of form-groups */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Input Group — text input + select side by side */
.input-group {
    display: flex;
    gap: var(--space-2);
}

.input-group .form-control {
    flex: 1;
}

/* Divider — horizontal rule with optional text */
.divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--space-5) 0;
}

/* Button size xs */
.btn--xs {
    padding: 3px 10px;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
}

/* Button colours: info, warning, success */
.btn--info {
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    color: #fff;
}

.btn--warning {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #fff;
}

.btn--success {
    background: linear-gradient(135deg, var(--success), #16a34a);
    color: #fff;
}

.btn--info:hover {
    opacity: .9;
}

.btn--warning:hover {
    opacity: .9;
}

.btn--success:hover {
    opacity: .9;
}

/* Additional flex helpers */
.flex-wrap {
    flex-wrap: wrap;
}

.items-start {
    align-items: flex-start;
}

.gap-1 {
    gap: var(--space-1);
}

.gap-5 {
    gap: var(--space-5);
}

.mt-1 {
    margin-top: var(--space-1);
}

.mt-3 {
    margin-top: var(--space-3);
}

.mt-5 {
    margin-top: var(--space-5);
}

.mb-2 {
    margin-bottom: var(--space-2);
}

.mb-3 {
    margin-bottom: var(--space-3);
}

.p-3 {
    padding: var(--space-3);
}

/* Text size utilities */
.text-xs {
    font-size: 0.75rem;
}

.text-sm {
    font-size: 0.875rem;
}

.text-lg {
    font-size: 1.125rem;
}

.text-xl {
    font-size: 1.25rem;
}

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

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

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

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

/* Text align */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

/* Number format */
.text-mono {
    font-family: 'Courier New', monospace;
}