/* ============================================
   SahiBachat — Fresh Vibrant Design System
   Light Mode + Clean Modern UI
   ============================================ */

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

/* --- CSS Variables --- */
:root {
    --bg-primary: #F0F4FF;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-glass: rgba(99, 102, 241, 0.04);
    --bg-glass-hover: rgba(99, 102, 241, 0.08);
    --bg-input: #F8FAFC;
    --border-glass: #E2E8F0;
    --border-active: rgba(99, 102, 241, 0.4);
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;
    --accent: #6366F1;
    --accent-light: #818CF8;
    --accent-glow: rgba(99, 102, 241, 0.2);
    --accent-bg: rgba(99, 102, 241, 0.08);
    --success: #10B981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --warning: #F59E0B;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --danger: #EF4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --info: #3B82F6;
    --info-bg: rgba(59, 130, 246, 0.1);
    --sidebar-w: 260px;
    --header-h: 65px;
    --radius: 14px;
    --radius-sm: 10px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 12px 40px rgba(99, 102, 241, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

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

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

.sidebar {
    width: var(--sidebar-w);
    background: #ffffff;
    border-right: 1px solid var(--border-glass);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    box-shadow: 2px 0 12px rgba(0,0,0,0.03);
}

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

.sidebar-brand .logo {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, #6366F1, #8B5CF6, #EC4899);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 800;
    color: #fff;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.sidebar-brand h2 {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
}

.sidebar-brand small {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 400;
}

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

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 4px;
    position: relative;
}

.nav-item:hover {
    background: var(--bg-glass-hover);
    color: var(--accent);
}

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

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 22px;
    background: var(--accent);
    border-radius: 0 4px 4px 0;
}

.nav-item i { font-size: 18px; width: 24px; text-align: center; }

.nav-badge {
    margin-left: auto;
    background: linear-gradient(135deg, #EF4444, #F97316);
    color: #fff;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 600;
}

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

.main-content {
    margin-left: var(--sidebar-w);
    flex: 1;
    min-height: 100vh;
}

/* --- Header --- */
.top-header {
    height: var(--header-h);
    background: #ffffff;
    border-bottom: 1px solid var(--border-glass);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 1px 4px rgba(0,0,0,0.03);
}

.header-left { display: flex; align-items: center; gap: 16px; }
.header-left h1 { font-size: 20px; font-weight: 700; color: var(--text-primary); }
.header-right { display: flex; align-items: center; gap: 12px; }

.header-btn {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--bg-primary);
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 18px;
}

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

.page-content { padding: 30px; }

/* --- Cards --- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

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

.card-header h3 { font-size: 16px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.card-title { font-size: 16px; font-weight: 600; margin-bottom: 16px; }

/* --- Stat Cards --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: #ffffff;
    border: 1px solid var(--border-glass);
    border-radius: var(--radius);
    padding: 24px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #6366F1, #8B5CF6);
}

.stat-card.success::before { background: linear-gradient(90deg, #10B981, #34D399); }
.stat-card.warning::before { background: linear-gradient(90deg, #F59E0B, #FBBF24); }
.stat-card.danger::before { background: linear-gradient(90deg, #EF4444, #FB7185); }
.stat-card.info::before { background: linear-gradient(90deg, #3B82F6, #60A5FA); }

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

.stat-card .stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 16px;
}

.stat-card .stat-icon.accent { background: var(--accent-bg); color: var(--accent); }
.stat-card .stat-icon.success { background: var(--success-bg); color: var(--success); }
.stat-card .stat-icon.warning { background: var(--warning-bg); color: var(--warning); }
.stat-card .stat-icon.danger { background: var(--danger-bg); color: var(--danger); }

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 4px;
    line-height: 1.2;
    color: var(--text-primary);
}

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

.stat-card .stat-change { font-size: 12px; margin-top: 8px; display: flex; align-items: center; gap: 4px; }
.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    line-height: 1.4;
}

.btn-primary {
    background: linear-gradient(135deg, #6366F1, #8B5CF6);
    color: #fff;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(99, 102, 241, 0.4);
}

.btn-success { background: linear-gradient(135deg, #10B981, #34D399); color: #fff; box-shadow: 0 4px 12px rgba(16,185,129,0.25); }
.btn-warning { background: linear-gradient(135deg, #F59E0B, #FBBF24); color: #fff; box-shadow: 0 4px 12px rgba(245,158,11,0.25); }
.btn-danger { background: linear-gradient(135deg, #EF4444, #F97316); color: #fff; box-shadow: 0 4px 12px rgba(239,68,68,0.25); }

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--border-glass);
    color: var(--text-secondary);
}

.btn-outline:hover {
    background: var(--accent-bg);
    color: var(--accent);
    border-color: var(--accent);
}

.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-group { display: flex; gap: 8px; }

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

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1.5px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
    background: #fff;
}

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

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2364748B' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

textarea.form-control { resize: vertical; min-height: 80px; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.form-text { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* --- Tables --- */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border-glass);
}

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

thead th {
    background: var(--bg-primary);
    padding: 14px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-glass);
    white-space: nowrap;
}

tbody td {
    padding: 14px 16px;
    font-size: 14px;
    border-bottom: 1px solid #F1F5F9;
    vertical-align: middle;
}

tbody tr { transition: var(--transition); }
tbody tr:hover { background: var(--bg-glass); }
tbody tr:last-child td { border-bottom: none; }

/* --- Badges --- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: #B45309; }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-secondary { background: #F1F5F9; color: var(--text-muted); }

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s;
}

.modal-overlay.active { display: flex; opacity: 1; }

.modal {
    background: #ffffff;
    border: 1px solid var(--border-glass);
    border-radius: 18px;
    width: 90%;
    max-width: 560px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from { transform: scale(0.95) translateY(20px); opacity: 0; }
    to { transform: scale(1) translateY(0); opacity: 1; }
}

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

.modal-header h3 { font-size: 18px; font-weight: 700; }

.modal-close {
    width: 32px; height: 32px;
    border-radius: 8px;
    background: #F1F5F9;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--transition);
}

.modal-close:hover { background: var(--danger-bg); color: var(--danger); }

.modal-body { padding: 24px; }
.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-glass);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* --- Credit Score Ring --- */
.score-ring { width: 120px; height: 120px; position: relative; margin: 0 auto 16px; }
.score-ring svg { transform: rotate(-90deg); }
.score-ring circle { fill: none; stroke-width: 8; stroke-linecap: round; }
.score-ring .bg { stroke: #E2E8F0; }
.score-excellent .fg { stroke: var(--success); }
.score-good .fg { stroke: var(--info); }
.score-average .fg { stroke: var(--warning); }
.score-poor .fg { stroke: var(--danger); }
.score-bad .fg { stroke: #94A3B8; }
.score-ring .score-text { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.score-ring .score-value { font-size: 28px; font-weight: 800; line-height: 1; }
.score-ring .score-label { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

/* --- Empty State --- */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty-state i { font-size: 48px; margin-bottom: 16px; opacity: 0.4; }
.empty-state h3 { font-size: 18px; margin-bottom: 8px; color: var(--text-secondary); }
.empty-state p { font-size: 14px; }

/* --- Toast --- */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 14px 24px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    z-index: 9999;
    animation: toastIn 0.4s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-lg);
}

.toast-success { background: #10B981; color: #fff; }
.toast-error { background: #EF4444; color: #fff; }
.toast-warning { background: #F59E0B; color: #fff; }

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

/* --- Pagination --- */
.pagination { display: flex; gap: 6px; justify-content: center; margin-top: 24px; }
.page-btn {
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    background: #fff;
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}
.page-btn:hover, .page-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* --- Login Page --- */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, #EEF2FF 0%, #F0F4FF 30%, #FDF2F8 70%, #EEF2FF 100%);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: #ffffff;
    border: 1px solid var(--border-glass);
    border-radius: 22px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.1);
    animation: modalIn 0.5s ease;
}

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

.login-logo .logo-icon {
    width: 68px; height: 68px;
    background: linear-gradient(135deg, #6366F1, #8B5CF6, #EC4899);
    border-radius: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
    box-shadow: 0 8px 28px rgba(99, 102, 241, 0.35);
}

.login-logo h1 {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
}

.login-logo p { color: var(--text-muted); font-size: 14px; margin-top: 4px; }
.login-card .form-control { padding: 14px 16px; font-size: 15px; }
.login-card .btn { width: 100%; justify-content: center; padding: 14px; font-size: 15px; }

.login-error {
    background: var(--danger-bg);
    color: var(--danger);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 16px;
    display: none;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .page-content { padding: 16px; }
    .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .login-card { padding: 24px; }
}

/* --- Animations --- */
.fade-in { animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.slide-up { animation: slideUp 0.5s ease; }
@keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

/* --- Scrollbar --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #CBD5E1; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #94A3B8; }

/* --- Utility --- */
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-muted); }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.hidden { display: none !important; }