/* ===== CSS Variables ===== */
:root {
    --bg-primary: #0f1117;
    --bg-secondary: #1a1d27;
    --bg-card: #1e2130;
    --bg-hover: #262938;
    --bg-input: #252836;
    --border-color: #2d3148;
    --text-primary: #e4e6f0;
    --text-secondary: #8b8fa3;
    --text-muted: #5c6078;
    --accent: #6366F1;
    --accent-hover: #818CF8;
    --accent-glow: rgba(99,102,241,0.25);
    --success: #22C55E;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #3B82F6;
    --text: var(--text-primary);
    --green: #22C55E;
    --sidebar-width: 260px;
    --sidebar-collapsed: 72px;
    --navbar-height: 64px;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; }
body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}
a { color: var(--accent); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-hover); }
ul { list-style: none; }
img { max-width: 100%; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; }

/* ===== App Layout ===== */
.app-wrapper { display: flex; min-height: 100vh; }
.main-content { flex: 1; margin-left: var(--sidebar-width); transition: var(--transition); min-height: 100vh; display: flex; flex-direction: column; }

/* ===== Sidebar ===== */
.sidebar {
    position: fixed; left: 0; top: 0; bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex; flex-direction: column;
    z-index: 100; transition: var(--transition);
    overflow: hidden;
}
.sidebar-header {
    padding: 20px; display: flex; align-items: center; justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}
.logo-container { display: flex; align-items: center; gap: 12px; }
.logo-icon {
    width: 40px; height: 40px; border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), #a855f7);
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; color: #fff; flex-shrink: 0;
}
.logo-text { display: flex; flex-direction: column; }
.logo-name { font-weight: 700; font-size: 16px; color: var(--text-primary); line-height: 1.2; }
.logo-sub { font-size: 11px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1.5px; }
.sidebar-toggle {
    color: var(--text-secondary); font-size: 16px; padding: 6px;
    border-radius: 6px; transition: var(--transition);
}
.sidebar-toggle:hover { background: var(--bg-hover); color: var(--text-primary); }

.sidebar-nav { flex: 1; overflow-y: auto; padding: 12px 0; }
.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }

.nav-section { margin-bottom: 8px; }
.nav-section-title {
    display: block; padding: 8px 24px 4px; font-size: 10px; font-weight: 600;
    color: var(--text-muted); text-transform: uppercase; letter-spacing: 1.5px;
}
.nav-item {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 24px; color: var(--text-secondary);
    transition: var(--transition); position: relative;
    font-size: 13px; font-weight: 500;
}
.nav-item i { width: 20px; text-align: center; font-size: 15px; }
.nav-item:hover { color: var(--text-primary); background: var(--bg-hover); }
.nav-item.active {
    color: var(--accent); background: rgba(99,102,241,0.08);
}
.nav-item.active::before {
    content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
    width: 3px; height: 24px; background: var(--accent); border-radius: 0 3px 3px 0;
}
.nav-badge {
    margin-left: auto; background: var(--danger); color: #fff;
    font-size: 10px; font-weight: 700; padding: 2px 7px;
    border-radius: 10px; min-width: 20px; text-align: center;
}

.sidebar-footer { border-top: 1px solid var(--border-color); padding: 16px 20px; }
.user-card { display: flex; align-items: center; gap: 10px; }
.user-avatar { width: 36px; height: 36px; border-radius: 10px; object-fit: cover; }
.user-info { flex: 1; min-width: 0; }
.user-name { display: block; font-weight: 600; font-size: 13px; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { display: block; font-size: 11px; color: var(--text-muted); }
.logout-btn { color: var(--text-muted); padding: 6px; border-radius: 6px; transition: var(--transition); }
.logout-btn:hover { color: var(--danger); background: rgba(239,68,68,0.1); }

/* ===== Top Navbar ===== */
.top-navbar {
    height: var(--navbar-height); padding: 0 28px;
    display: flex; align-items: center; justify-content: space-between;
    background: var(--bg-secondary); border-bottom: 1px solid var(--border-color);
    position: sticky; top: 0; z-index: 50;
}
.navbar-left { display: flex; align-items: center; gap: 16px; }
.navbar-right { display: flex; align-items: center; gap: 12px; }
.mobile-menu-toggle { display: none; color: var(--text-primary); font-size: 20px; padding: 8px; }

.breadcrumb { font-size: 13px; color: var(--text-secondary); }
.breadcrumb a { color: var(--text-muted); }

.search-box {
    position: relative; display: flex; align-items: center;
    background: var(--bg-input); border: 1px solid var(--border-color);
    border-radius: var(--radius-sm); padding: 0 14px; width: 280px;
    transition: var(--transition);
}
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.search-box i { color: var(--text-muted); font-size: 13px; }
.search-box input {
    background: none; border: none; color: var(--text-primary); padding: 8px 10px;
    width: 100%; outline: none; font-size: 13px;
}
.search-box input::placeholder { color: var(--text-muted); }

.navbar-btn {
    position: relative; width: 38px; height: 38px; border-radius: var(--radius-sm);
    color: var(--text-secondary); font-size: 16px; transition: var(--transition);
    display: flex; align-items: center; justify-content: center;
}
.navbar-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.notification-dot {
    position: absolute; top: 8px; right: 8px; width: 8px; height: 8px;
    background: var(--danger); border-radius: 50%;
    border: 2px solid var(--bg-secondary); animation: pulse 2s infinite;
}

/* ===== 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-title { font-size: 24px; font-weight: 700; color: var(--text-primary); }
.page-subtitle { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }

/* ===== Cards ===== */
.card {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius); padding: 24px; transition: var(--transition);
}
.card:hover { border-color: rgba(99,102,241,0.2); }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.card-title { font-size: 16px; font-weight: 600; color: var(--text-primary); }

/* ===== Stat Cards ===== */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; margin-bottom: 28px; }
.stat-card {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius); padding: 24px; transition: var(--transition);
    position: relative; overflow: hidden;
}
.stat-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--stat-color, var(--accent)), transparent);
}
.stat-card:hover { transform: translateY(-2px); border-color: var(--stat-color, var(--accent)); box-shadow: 0 8px 32px rgba(0,0,0,0.2); }
.stat-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.stat-icon {
    width: 44px; height: 44px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; color: #fff;
}
.stat-change { font-size: 12px; font-weight: 600; display: flex; align-items: center; gap: 4px; }
.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }
.stat-value { font-size: 28px; font-weight: 800; color: var(--text-primary); margin-bottom: 4px; }
.stat-label { font-size: 13px; color: var(--text-secondary); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex; align-items: center; gap: 8px; padding: 10px 20px;
    border-radius: var(--radius-sm); font-weight: 600; font-size: 13px;
    transition: var(--transition); border: 1px solid transparent; white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, var(--accent), #818CF8);
    color: #fff; box-shadow: 0 4px 12px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px var(--accent-glow); color: #fff; }
.btn-secondary { background: var(--bg-hover); color: var(--text-primary); border-color: var(--border-color); }
.btn-secondary:hover { background: var(--border-color); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-outline { background: transparent; border-color: var(--border-color); color: var(--text-secondary); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

/* ===== Forms ===== */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--text-secondary); margin-bottom: 6px; }
.form-control {
    width: 100%; padding: 10px 14px; background: var(--bg-input);
    border: 1px solid var(--border-color); border-radius: var(--radius-sm);
    color: var(--text-primary); font-size: 13px; transition: var(--transition);
    outline: none;
}
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.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' viewBox='0 0 12 12'%3E%3Cpath fill='%238b8fa3' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px; }
textarea.form-control { resize: vertical; min-height: 100px; }
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.form-text { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* ===== Tables ===== */
.table-container, .table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border-color); }
.table, .data-table { width: 100%; border-collapse: collapse; }
.table th, .data-table th {
    padding: 12px 16px; text-align: left; font-size: 11px; font-weight: 600;
    color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px;
    background: var(--bg-secondary); border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}
.table td, .data-table td {
    padding: 14px 16px; border-bottom: 1px solid var(--border-color);
    font-size: 13px; color: var(--text-primary); vertical-align: middle;
}
.table tbody tr, .data-table tbody tr { transition: var(--transition); }
.table tbody tr:hover, .data-table tbody tr:hover { background: var(--bg-hover); }
.table tbody tr:last-child td, .data-table tbody tr:last-child td { border-bottom: none; }

/* ===== Pagination ===== */
.pagination-wrap { padding: 16px 0; display: flex; justify-content: center; }

/* ===== Badges ===== */
.badge {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 3px 10px; border-radius: 20px; font-size: 11px; font-weight: 600;
    white-space: nowrap;
}
.badge-primary { background: rgba(99,102,241,0.15); color: var(--accent); }
.badge-success { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge-info { background: rgba(59,130,246,0.15); color: var(--info); }
.badge-muted { background: var(--bg-hover); color: var(--text-muted); }

/* ===== Alerts ===== */
.alert {
    display: flex; align-items: center; gap: 12px; padding: 14px 20px;
    border-radius: var(--radius-sm); margin-bottom: 20px; font-size: 13px;
    animation: slideDown 0.3s ease;
}
.alert-success { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.2); color: var(--success); }
.alert-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.2); color: var(--danger); }
.alert-close { margin-left: auto; color: inherit; opacity: 0.6; padding: 4px; }
.alert-close:hover { opacity: 1; }

/* ===== Priority Dots ===== */
.priority-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.priority-hot { background: var(--danger); box-shadow: 0 0 8px rgba(239,68,68,0.4); }
.priority-warm { background: var(--warning); box-shadow: 0 0 8px rgba(245,158,11,0.4); }
.priority-cold { background: var(--info); box-shadow: 0 0 8px rgba(59,130,246,0.4); }

/* ===== Pagination ===== */
.pagination { display: flex; align-items: center; gap: 4px; justify-content: center; margin-top: 24px; }
.pagination a, .pagination span {
    padding: 8px 14px; border-radius: 8px; font-size: 13px; font-weight: 500;
    color: var(--text-secondary); transition: var(--transition);
    border: 1px solid var(--border-color);
}
.pagination a:hover { background: var(--bg-hover); color: var(--text-primary); }
.pagination .active span { background: var(--accent); color: #fff; border-color: var(--accent); }
.pagination .disabled span { opacity: 0.3; }

/* ===== Filters Bar ===== */
.filters-bar {
    display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
    padding: 16px 20px; background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius); margin-bottom: 20px;
}
.filter-select {
    padding: 8px 32px 8px 12px; background: var(--bg-input); border: 1px solid var(--border-color);
    border-radius: var(--radius-sm); color: var(--text-primary); font-size: 12px;
    appearance: none; outline: none; cursor: pointer; transition: var(--transition);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%238b8fa3' d='M5 7L0 2h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 10px center;
}
.filter-select:focus { border-color: var(--accent); }
.filter-input {
    padding: 8px 12px; background: var(--bg-input); border: 1px solid var(--border-color);
    border-radius: var(--radius-sm); color: var(--text-primary); font-size: 12px;
    outline: none; transition: var(--transition);
}
.filter-input:focus { border-color: var(--accent); }

/* ===== Modal ===== */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
    display: none; align-items: center; justify-content: center; z-index: 1000;
}
.modal-overlay.active { display: flex; }
.modal {
    background: var(--bg-card); border: 1px solid var(--border-color);
    border-radius: var(--radius); width: 90%; max-width: 600px; max-height: 90vh;
    overflow-y: auto; animation: slideUp 0.3s ease;
}
.modal-header {
    padding: 20px 24px; border-bottom: 1px solid var(--border-color);
    display: flex; align-items: center; justify-content: space-between;
}
.modal-title { font-size: 18px; font-weight: 700; }
.modal-close { color: var(--text-muted); font-size: 20px; padding: 4px; }
.modal-close:hover { color: var(--text-primary); }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border-color); display: flex; gap: 12px; justify-content: flex-end; }

/* ===== Grid Layouts ===== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

/* ===== Animations ===== */
@keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ===== Empty State ===== */
.empty-state { text-align: center; padding: 60px 20px; }
.empty-state i { font-size: 48px; color: var(--text-muted); margin-bottom: 16px; }
.empty-state h3 { font-size: 18px; color: var(--text-primary); margin-bottom: 8px; }
.empty-state p { color: var(--text-secondary); font-size: 13px; margin-bottom: 20px; }

/* ===== Login Page ===== */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg-primary); position: relative; overflow: hidden; }
.login-page::before { content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%; background: radial-gradient(circle at 30% 50%, rgba(99,102,241,0.08) 0%, transparent 50%), radial-gradient(circle at 70% 50%, rgba(168,85,247,0.06) 0%, transparent 50%); }
.login-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 20px; padding: 48px; width: 100%; max-width: 440px; position: relative; z-index: 1; animation: slideUp 0.5s ease; }
.login-logo { text-align: center; margin-bottom: 32px; }
.login-logo .logo-icon { width: 56px; height: 56px; margin: 0 auto 16px; font-size: 24px; border-radius: 16px; }
.login-logo h1 { font-size: 24px; font-weight: 800; }
.login-logo p { color: var(--text-muted); font-size: 14px; margin-top: 4px; }
.login-form .form-group { margin-bottom: 20px; }
.login-form .form-control { padding: 12px 16px; font-size: 14px; border-radius: 10px; }
.login-form .btn { width: 100%; padding: 14px; font-size: 15px; border-radius: 10px; justify-content: center; }
.login-options { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; font-size: 13px; }
.login-options label { display: flex; align-items: center; gap: 8px; color: var(--text-secondary); cursor: pointer; }
.login-options a { color: var(--accent); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .mobile-menu-toggle { display: block; }
    .stats-grid { grid-template-columns: 1fr; }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .search-box { display: none; }
    .page-content { padding: 16px; }
    .filters-bar { flex-direction: column; align-items: stretch; }
}

/* ===== Status Badges ===== */
.status-badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 4px 12px; border-radius: 20px;
    font-size: 12px; font-weight: 600;
    text-transform: capitalize;
}
.status-active, .status-approved, .status-paid, .status-confirmed { background: rgba(34,197,94,0.15); color: var(--success); }
.status-pending, .status-scheduled { background: rgba(245,158,11,0.15); color: var(--warning); }
.status-inactive, .status-cancelled, .status-lost, .status-junk { background: rgba(239,68,68,0.12); color: var(--danger); }
.status-blacklisted { background: rgba(239,68,68,0.2); color: #ff6b6b; }

/* ===== Badges ===== */
.badge {
    display: inline-flex; align-items: center; padding: 3px 10px;
    border-radius: 14px; font-size: 11px; font-weight: 600;
}
.badge-primary { background: rgba(99,102,241,0.2); color: var(--accent); }
.badge-secondary { background: rgba(139,143,163,0.15); color: var(--text-secondary); }
.badge-success { background: rgba(34,197,94,0.18); color: var(--success); }
.badge-danger { background: rgba(239,68,68,0.18); color: var(--danger); }
.badge-warning { background: rgba(245,158,11,0.18); color: var(--warning); }
.badge-info { background: rgba(59,130,246,0.18); color: var(--info); }

/* ===== Avatar Circle ===== */
.avatar-circle {
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%; color: #fff; font-weight: 700;
    flex-shrink: 0;
}

/* ===== Detail Rows (Show Page) ===== */
.detail-rows { display: flex; flex-direction: column; gap: 0; }
.detail-row {
    display: flex; justify-content: space-between; align-items: center;
    padding: 12px 0; border-bottom: 1px solid var(--border-color);
}
.detail-row:last-child { border-bottom: none; }
.detail-label { color: var(--text-muted); font-size: 13px; font-weight: 500; }
.detail-value { color: var(--text-primary); font-size: 14px; font-weight: 500; text-align: right; }

/* ===== Form Error ===== */
.form-error { color: var(--danger); font-size: 12px; margin-top: 4px; display: block; }
.is-invalid { border-color: var(--danger) !important; }

/* ===== Button Icon (Small) ===== */
.btn-icon {
    display: inline-flex; align-items: center; justify-content: center;
    width: 34px; height: 34px; border-radius: 8px;
    background: var(--bg-hover); color: var(--text-secondary);
    font-size: 14px; transition: var(--transition);
}
.btn-icon:hover { background: var(--bg-input); color: var(--accent); }

/* ===== Button Small ===== */
.btn-sm { padding: 6px 14px; font-size: 12px; border-radius: 8px; }