/* ========================================
   OlahBisnis Design System
   Modern, Soft, Mobile-First
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* ── CSS Variables ────────────────────── */
:root {
    /* Primary Palette */
    --primary-50: #eef2ff;
    --primary-100: #e0e7ff;
    --primary-200: #c7d2fe;
    --primary-300: #a5b4fc;
    --primary-400: #818cf8;
    --primary-500: #6366f1;
    --primary-600: #4f46e5;
    --primary-700: #4338ca;
    --primary-800: #3730a3;
    --primary-900: #312e81;

    /* Success */
    --success-50: #ecfdf5;
    --success-100: #d1fae5;
    --success-500: #10b981;
    --success-600: #059669;
    --success-700: #047857;

    /* Warning */
    --warning-50: #fffbeb;
    --warning-100: #fef3c7;
    --warning-500: #f59e0b;
    --warning-600: #d97706;

    /* Danger */
    --danger-50: #fef2f2;
    --danger-100: #fee2e2;
    --danger-500: #ef4444;
    --danger-600: #dc2626;

    /* Info */
    --info-50: #ecfeff;
    --info-500: #06b6d4;
    --info-600: #0891b2;

    /* Neutrals */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Semantic */
    --bg-primary: #f8fafc;
    --bg-card: #ffffff;
    --bg-sidebar: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #34d399 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-card: linear-gradient(135deg, rgba(99,102,241,0.05) 0%, rgba(139,92,246,0.05) 100%);

    /* Spacing */
    --sidebar-width: 260px;
    --header-height: 64px;
    --bottom-nav-height: 72px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; }
a { color: var(--primary-600); text-decoration: none; transition: all 0.2s; }
a:hover { color: var(--primary-700); }

/* ── Typography ────────────────────────── */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    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; }
p { color: var(--text-secondary); }

/* ── Buttons ───────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    min-height: 48px;
    outline: none;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 14px rgba(99,102,241,0.35);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(99,102,241,0.45);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

.btn-success {
    background: var(--gradient-success);
    color: white;
    box-shadow: 0 4px 14px rgba(16,185,129,0.35);
}

.btn-danger {
    background: var(--danger-500);
    color: white;
}

.btn-danger:hover {
    background: var(--danger-600);
}

.btn-outline {
    background: transparent;
    color: var(--primary-600);
    border: 2px solid var(--primary-200);
}

.btn-outline:hover {
    background: var(--primary-50);
    border-color: var(--primary-400);
}

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

.btn-ghost:hover {
    background: var(--gray-100);
    color: var(--text-primary);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.8125rem;
    min-height: 36px;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.0625rem;
    min-height: 56px;
    border-radius: var(--radius-lg);
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: var(--radius-md);
}

.btn-icon.btn-sm {
    width: 36px;
    height: 36px;
}

/* ── Cards ─────────────────────────────── */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.card-body {
    padding: 24px;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.card-header h3 {
    font-size: 1.0625rem;
    font-weight: 600;
}

.card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    background: var(--gray-50);
}

/* Stat Cards */
.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 24px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s;
}

.stat-card:hover::before {
    opacity: 1;
}

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

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.stat-card .stat-icon.income {
    background: var(--success-50);
    color: var(--success-600);
}

.stat-card .stat-icon.expense {
    background: var(--danger-50);
    color: var(--danger-500);
}

.stat-card .stat-icon.balance {
    background: var(--primary-50);
    color: var(--primary-600);
}

.stat-card .stat-icon.invoice {
    background: var(--warning-50);
    color: var(--warning-600);
}

.stat-card .stat-label {
    font-size: 0.8125rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 4px;
}

.stat-card .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-card .stat-change {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 8px;
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.stat-card .stat-change.up {
    color: var(--success-600);
    background: var(--success-50);
}

.stat-card .stat-change.down {
    color: var(--danger-500);
    background: var(--danger-50);
}

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

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-family: inherit;
    font-size: 0.9375rem;
    color: var(--text-primary);
    background: var(--bg-card);
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    outline: none;
    transition: all 0.25s;
    min-height: 48px;
}

.form-control:focus {
    border-color: var(--primary-400);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}

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

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

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 20 20' fill='%2394a3b8'%3E%3Cpath d='M7 7l3 3 3-3'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

.form-text {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.form-error {
    font-size: 0.8125rem;
    color: var(--danger-500);
    margin-top: 4px;
}

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

.input-icon-wrapper .form-control {
    padding-left: 44px;
}

.input-icon-wrapper .input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 1.125rem;
    pointer-events: none;
}

/* Switch Toggle */
.switch {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
}

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

.switch .slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--gray-300);
    border-radius: var(--radius-full);
    transition: 0.3s;
}

.switch .slider::before {
    content: '';
    position: absolute;
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: 0.3s;
    box-shadow: var(--shadow-sm);
}

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

.switch input:checked + .slider::before {
    transform: translateX(24px);
}

/* ── Tables ────────────────────────────── */
.table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.data-table th {
    background: var(--gray-50);
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 0.8125rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

.data-table tbody tr {
    transition: background 0.15s;
}

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

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* ── Badges ────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-success {
    background: var(--success-50);
    color: var(--success-600);
}

.badge-warning {
    background: var(--warning-50);
    color: var(--warning-600);
}

.badge-danger {
    background: var(--danger-50);
    color: var(--danger-500);
}

.badge-info {
    background: var(--info-50);
    color: var(--info-600);
}

.badge-primary {
    background: var(--primary-50);
    color: var(--primary-600);
}

.badge-neutral {
    background: var(--gray-100);
    color: var(--gray-600);
}

/* ── Modal ─────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    padding: 16px;
}

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

.modal {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 540px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95) translateY(10px);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.modal-header {
    padding: 24px 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 1.125rem;
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s;
    font-size: 1.25rem;
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 0 24px 24px;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* ── Toast / Notification ──────────────── */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    max-width: 420px;
    transform: translateX(120%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 4px solid var(--primary-500);
}

.toast.show {
    transform: translateX(0);
}

.toast.toast-success { border-left-color: var(--success-500); }
.toast.toast-error { border-left-color: var(--danger-500); }
.toast.toast-warning { border-left-color: var(--warning-500); }

.toast-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
}

.toast-message {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
    box-shadow: var(--shadow-sm);
}

.sidebar-logo {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.sidebar-logo .logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 1.125rem;
}

.sidebar-logo .logo-text {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
}

.sidebar-logo .logo-text span {
    color: var(--primary-600);
}

.sidebar-nav {
    padding: 16px 12px;
    flex: 1;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all 0.2s;
    cursor: pointer;
    margin-bottom: 2px;
}

.nav-item:hover {
    background: var(--gray-100);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--primary-50);
    color: var(--primary-600);
    font-weight: 600;
}

.nav-item .nav-icon {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    transition: background 0.2s;
}

.sidebar-user:hover {
    background: var(--gray-100);
}

.sidebar-user .user-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.875rem;
    flex-shrink: 0;
}

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

.sidebar-user .user-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user .user-plan {
    font-size: 0.75rem;
    color: var(--text-muted);
}

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

/* Header */
.app-header {
    height: var(--header-height);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: var(--shadow-sm);
}

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

.header-left h1 {
    font-size: 1.25rem;
    font-weight: 700;
}

.menu-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border: none;
    background: none;
    cursor: pointer;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1.5rem;
    align-items: center;
    justify-content: center;
}

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

.header-search {
    position: relative;
}

.header-search input {
    width: 260px;
    padding: 8px 12px 8px 36px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 0.875rem;
    background: var(--gray-50);
    outline: none;
    transition: all 0.25s;
}

.header-search input:focus {
    width: 320px;
    background: white;
    border-color: var(--primary-400);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.1);
}

.header-search .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Page Content */
.page-content {
    padding: 28px;
    flex: 1;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 16px;
}

.page-header h2 {
    font-size: 1.5rem;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 4px;
}

/* ── Grid System ───────────────────────── */
.grid {
    display: grid;
    gap: 24px;
}

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

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

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

.gap-8 { gap: 8px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }

/* ── Utility Classes ───────────────────── */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-success { color: var(--success-600); }
.text-danger { color: var(--danger-500); }
.text-warning { color: var(--warning-600); }
.text-muted { color: var(--text-muted); }
.text-primary { color: var(--primary-600); }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.p-16 { padding: 16px; }
.p-24 { padding: 24px; }
.hidden { display: none !important; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Amount colors */
.amount-income { color: var(--success-600); font-weight: 600; }
.amount-expense { color: var(--danger-500); font-weight: 600; }

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 24px;
}

.empty-state .empty-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.6;
}

.empty-state h3 {
    font-size: 1.125rem;
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* Tab Navigation */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    gap: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab-item {
    padding: 12px 20px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s;
    white-space: nowrap;
}

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

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

.tab-content {
    display: none;
    padding: 24px 0;
}

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

/* Filter Bar */
.filter-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.filter-bar .form-control {
    min-height: 40px;
    padding: 8px 14px;
    font-size: 0.875rem;
    width: auto;
    min-width: 160px;
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    margin-top: 24px;
}

.pagination .page-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.pagination .page-btn:hover {
    background: var(--gray-100);
}

.pagination .page-btn.active {
    background: var(--primary-600);
    color: white;
    border-color: var(--primary-600);
}

/* ── Bottom Navigation (Mobile) ────────── */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bottom-nav-height);
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -4px 12px rgba(0,0,0,0.05);
    z-index: 100;
    padding: 8px 0;
    padding-bottom: max(8px, env(safe-area-inset-bottom));
}

.bottom-nav-items {
    display: flex;
    align-items: center;
    justify-content: space-around;
    height: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: var(--text-muted);
    font-size: 0.625rem;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
}

.bottom-nav-item .nav-icon {
    font-size: 1.375rem;
    line-height: 1;
}

.bottom-nav-item.active {
    color: var(--primary-600);
}

.bottom-nav-item.active .nav-icon {
    transform: scale(1.1);
}

/* Sidebar Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,0.4);
    z-index: 99;
    opacity: 0;
    transition: opacity 0.3s;
}

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

/* ── Loading Spinner ───────────────────── */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-500);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 4px;
}

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

.loading-overlay {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px;
    gap: 12px;
    color: var(--text-muted);
}

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ── Animations ────────────────────────── */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade { animation: fadeIn 0.4s ease-out; }
.animate-slide-up { animation: slideUp 0.5s ease-out; }
.animate-slide-down { animation: slideDown 0.3s ease-out; }

/* Stagger animations for grid items */
.grid > *:nth-child(1) { animation-delay: 0.05s; }
.grid > *:nth-child(2) { animation-delay: 0.1s; }
.grid > *:nth-child(3) { animation-delay: 0.15s; }
.grid > *:nth-child(4) { animation-delay: 0.2s; }

/* ── Landing Page ──────────────────────── */
.landing-page {
    min-height: 100vh;
    background: white;
}

.landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: all 0.3s;
}

.landing-nav.scrolled {
    border-bottom-color: var(--border-color);
    box-shadow: var(--shadow-sm);
}

.landing-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.landing-nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.landing-nav .nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.landing-nav .nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: color 0.2s;
}

.landing-nav .nav-links a:hover {
    color: var(--text-primary);
}

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

/* Hero */
.hero-section {
    padding: 140px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 140%;
    height: 200%;
    background: radial-gradient(ellipse at center top, rgba(99,102,241,0.08) 0%, transparent 60%);
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--primary-50);
    color: var(--primary-600);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid var(--primary-100);
}

.hero-title {
    font-size: 3.25rem;
    font-weight: 800;
    line-height: 1.15;
    max-width: 800px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-700) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.hero-stat-item {
    text-align: center;
}

.hero-stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-600);
}

.hero-stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Features Section */
.features-section {
    padding: 80px 0;
    background: var(--gray-50);
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 2rem;
    margin-bottom: 12px;
}

.section-header p {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    max-width: 520px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: 32px;
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.feature-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.125rem;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 0.875rem;
    line-height: 1.7;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    text-align: center;
}

.cta-box {
    background: var(--gradient-hero);
    border-radius: var(--radius-xl);
    padding: 60px 40px;
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
}

.cta-box h2 {
    color: white;
    font-size: 2rem;
    margin-bottom: 16px;
}

.cta-box p {
    color: rgba(255,255,255,0.85);
    font-size: 1.0625rem;
    margin-bottom: 32px;
}

.cta-box .btn {
    background: white;
    color: var(--primary-700);
}

.cta-box .btn:hover {
    background: var(--gray-100);
}

/* Landing Footer */
.landing-footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.landing-footer p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ── Auth Pages ────────────────────────── */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: var(--gray-50);
    position: relative;
}

.auth-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: var(--gradient-hero);
    z-index: 0;
}

.auth-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 40px;
    width: 100%;
    max-width: 440px;
    position: relative;
    z-index: 1;
}

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo .logo-icon {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 1.5rem;
    margin: 0 auto 12px;
}

.auth-logo h1 {
    font-size: 1.5rem;
}

.auth-logo p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

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

.auth-divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 24px 0;
    color: var(--text-muted);
    font-size: 0.8125rem;
}

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

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.alert-error {
    background: var(--danger-50);
    color: var(--danger-600);
    border: 1px solid var(--danger-100);
}

.alert-success {
    background: var(--success-50);
    color: var(--success-600);
    border: 1px solid var(--success-100);
}

/* ── Quick Action FAB ──────────────────── */
.fab {
    position: fixed;
    bottom: 90px;
    right: 24px;
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(99,102,241,0.4);
    transition: all 0.3s;
    z-index: 90;
    display: none;
}

.fab:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(99,102,241,0.5);
}

/* ── Dropdown Menu ─────────────────────── */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    padding: 6px;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: all 0.2s;
}

.dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.15s;
}

.dropdown-item:hover {
    background: var(--gray-100);
    color: var(--text-primary);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 6px 0;
}

/* ── Chart Container ───────────────────── */
.chart-container {
    position: relative;
    height: 300px;
    width: 100%;
}

/* ── Report specific ───────────────────── */
.report-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.report-summary .summary-item {
    padding: 20px;
    border-radius: var(--radius-md);
    text-align: center;
}

.report-summary .summary-item.income-bg {
    background: var(--success-50);
}

.report-summary .summary-item.expense-bg {
    background: var(--danger-50);
}

.report-summary .summary-item.profit-bg {
    background: var(--primary-50);
}

.report-summary .summary-label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.report-summary .summary-value {
    font-size: 1.375rem;
    font-weight: 700;
    margin-top: 4px;
}

/* ── Responsive ────────────────────────── */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .hero-title { font-size: 2.5rem; }
    .report-summary { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    /* Sidebar hidden on mobile */
    .sidebar {
        transform: translateX(-100%);
        z-index: 200;
    }

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

    .sidebar-overlay {
        display: block;
    }

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

    .menu-toggle {
        display: flex;
    }

    /* Bottom Navigation */
    .bottom-nav {
        display: block;
    }

    .page-content {
        padding: 20px 16px;
        padding-bottom: calc(var(--bottom-nav-height) + 16px);
    }

    .app-header {
        padding: 0 16px;
    }

    .header-search {
        display: none;
    }

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

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    /* Auth */
    .auth-card {
        padding: 28px;
    }

    /* Landing */
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

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

    .landing-nav .nav-links {
        display: none;
    }

    .cta-box {
        padding: 40px 24px;
    }

    .cta-box h2 {
        font-size: 1.5rem;
    }

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

    .filter-bar .form-control {
        width: 100%;
        min-width: unset;
    }

    /* FAB visible on mobile */
    .fab {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Modal full width on mobile */
    .modal {
        max-width: 100%;
        border-radius: var(--radius-lg);
    }

    .stat-card .stat-value {
        font-size: 1.25rem;
    }

    .data-table {
        font-size: 0.8125rem;
    }

    .data-table th, .data-table td {
        padding: 10px 12px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.625rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .auth-card {
        padding: 24px 20px;
    }

    .btn-lg {
        padding: 14px 24px;
        font-size: 1rem;
    }
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* ── Print ─────────────────────────────── */
@media print {
    .sidebar, .app-header, .bottom-nav, .fab {
        display: none !important;
    }

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