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

:root {
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.8);
    --bg-glass: rgba(255,255,255,0.05);
    --border-glass: rgba(255,255,255,0.1);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-1: #6366f1;
    --accent-2: #8b5cf6;
    --accent-3: #06b6d4;
    --accent-4: #10b981;
    --accent-5: #f59e0b;
    --accent-6: #ef4444;
    --gradient-1: linear-gradient(135deg, #6366f1, #8b5cf6);
    --gradient-2: linear-gradient(135deg, #06b6d4, #10b981);
    --gradient-3: linear-gradient(135deg, #f59e0b, #ef4444);
    --gradient-4: linear-gradient(135deg, #ec4899, #8b5cf6);
    --shadow-glow: 0 0 30px rgba(99,102,241,0.15);
    --sidebar-width: 260px;
    --radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin:0; padding:0; box-sizing:border-box; }

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

body::before {
    content: '';
    position: fixed;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: radial-gradient(circle at 20% 50%, rgba(99,102,241,0.08) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(6,182,212,0.06) 0%, transparent 50%),
                radial-gradient(circle at 40% 80%, rgba(139,92,246,0.05) 0%, transparent 50%);
    z-index: -1;
    animation: bgFloat 20s ease-in-out infinite;
}

@keyframes bgFloat {
    0%,100% { transform: translate(0,0) rotate(0deg); }
    33% { transform: translate(20px,-20px) rotate(1deg); }
    66% { transform: translate(-10px,10px) rotate(-1deg); }
}

/* ============ SCROLLBAR ============ */
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:var(--bg-primary); }
::-webkit-scrollbar-thumb { background:var(--accent-1); border-radius:3px; }

/* ============ LOGIN PAGE ============ */
.login-wrapper {
    min-height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:20px;
    background: var(--bg-primary);
}

.login-container {
    display:flex;
    width:900px;
    max-width:100%;
    border-radius:20px;
    overflow:hidden;
    backdrop-filter:blur(20px);
    border:1px solid var(--border-glass);
    box-shadow: var(--shadow-glow), 0 25px 50px rgba(0,0,0,0.5);
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from { opacity:0; transform:translateY(30px); }
    to { opacity:1; transform:translateY(0); }
}

.login-brand {
    flex:1;
    background: var(--gradient-1);
    padding:50px 40px;
    display:flex;
    flex-direction:column;
    justify-content:center;
    position:relative;
    overflow:hidden;
}

.login-brand::before {
    content:'';
    position:absolute;
    top:-50%;right:-50%;
    width:200%;height:200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%,100% { transform:scale(1); opacity:0.5; }
    50% { transform:scale(1.1); opacity:1; }
}

.login-brand h1 { font-size:2rem; font-weight:800; color:#fff; position:relative; z-index:1; }
.login-brand p { color:rgba(255,255,255,0.8); margin-top:10px; font-size:0.95rem; position:relative; z-index:1; line-height:1.6; }
.login-brand .brand-icon { font-size:3rem; margin-bottom:20px; position:relative; z-index:1; }

.login-form-section {
    flex:1;
    background: var(--bg-secondary);
    padding:50px 40px;
    display:flex;
    flex-direction:column;
    justify-content:center;
}

.login-form-section h2 { font-size:1.5rem; font-weight:700; margin-bottom:8px; }
.login-form-section .subtitle { color:var(--text-secondary); margin-bottom:30px; font-size:0.9rem; }

.form-floating-custom { position:relative; margin-bottom:20px; }
.form-floating-custom label { position:absolute; top:14px; left:16px; color:var(--text-muted); font-size:0.85rem; transition:var(--transition); pointer-events:none; }
.form-floating-custom input:focus ~ label,
.form-floating-custom input:not(:placeholder-shown) ~ label {
    top:-8px; left:12px; font-size:0.7rem; color:var(--accent-1);
    background:var(--bg-secondary); padding:0 6px;
}

.form-control-dark {
    width:100%;
    padding:14px 16px;
    background:var(--bg-glass);
    border:1px solid var(--border-glass);
    border-radius:10px;
    color:var(--text-primary);
    font-size:0.95rem;
    transition:var(--transition);
    outline:none;
    font-family:'Inter',sans-serif;
}

.form-control-dark:focus {
    border-color:var(--accent-1);
    box-shadow:0 0 0 3px rgba(99,102,241,0.15);
}

.btn-gradient {
    width:100%;
    padding:14px;
    background:var(--gradient-1);
    border:none;
    border-radius:10px;
    color:#fff;
    font-size:1rem;
    font-weight:600;
    cursor:pointer;
    transition:var(--transition);
    font-family:'Inter',sans-serif;
    position:relative;
    overflow:hidden;
}

.btn-gradient:hover { transform:translateY(-2px); box-shadow:0 8px 25px rgba(99,102,241,0.4); }
.btn-gradient:active { transform:translateY(0); }

.btn-gradient::after {
    content:'';
    position:absolute;
    top:50%;left:50%;
    width:0;height:0;
    background:rgba(255,255,255,0.2);
    border-radius:50%;
    transition:width 0.5s, height 0.5s, top 0.5s, left 0.5s;
}

.btn-gradient:active::after {
    width:300px;height:300px;top:-100px;left:-50px;
}

/* ============ LAYOUT ============ */
.sidebar {
    position:fixed;
    top:0;left:0;
    width:var(--sidebar-width);
    height:100vh;
    background:var(--bg-secondary);
    border-right:1px solid var(--border-glass);
    z-index:1000;
    transition:var(--transition);
    display:flex;
    flex-direction:column;
    overflow-y:auto;
}

.sidebar.collapsed { width:70px; }
.sidebar.collapsed .sidebar-text { display:none; }
.sidebar.collapsed .sidebar-brand span { display:none; }
.sidebar.collapsed .nav-link { justify-content:center; padding:12px; }
.sidebar.collapsed .nav-link i { margin-right:0; font-size:1.2rem; }

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

.sidebar-brand .logo-icon {
    width:38px;height:38px;
    background:var(--gradient-1);
    border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    font-size:1.2rem;color:#fff;font-weight:700;
    flex-shrink:0;
}

.sidebar-brand span { font-size:1.1rem; font-weight:700; color:var(--text-primary); }

.sidebar-nav { padding:10px 8px; flex:1; }

.nav-section { margin-bottom:8px; }
.nav-section-title {
    font-size:0.65rem;
    text-transform:uppercase;
    letter-spacing:1.5px;
    color:var(--text-muted);
    padding:8px 14px 4px;
    font-weight:600;
}

.sidebar.collapsed .nav-section-title { display:none; }

.sidebar .nav-link {
    display:flex;
    align-items:center;
    padding:10px 14px;
    color: var(--text-secondary) !important;
    text-decoration:none;
    border-radius:8px;
    margin-bottom:2px;
    transition:var(--transition);
    font-size:0.88rem;
    font-weight:500;
}

.sidebar .nav-link i { width:20px; margin-right:12px; text-align:center; font-size:1rem; }

.sidebar .nav-link:hover { background:var(--bg-glass); color: var(--text-primary) !important; }

.sidebar .nav-link.active {
    background:var(--gradient-1);
    color: #fff !important;
    box-shadow:0 4px 15px rgba(99,102,241,0.3);
}

.sidebar-footer {
    padding:15px;
    border-top:1px solid var(--border-glass);
    flex-shrink:0;
}

.sidebar-user {
    display:flex;
    align-items:center;
    gap:10px;
}

.sidebar-user .avatar {
    width:36px;height:36px;
    border-radius:10px;
    background:var(--gradient-4);
    display:flex;align-items:center;justify-content:center;
    font-size:0.85rem;font-weight:700;color:#fff;flex-shrink:0;
}

.sidebar-user .user-info { overflow:hidden; }
.sidebar-user .user-name { font-size:0.85rem; font-weight:600; color:var(--text-primary); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.sidebar-user .user-role { font-size:0.7rem; color:var(--text-muted); text-transform:capitalize; }
.sidebar.collapsed .user-info { display:none; }

/* ============ MAIN CONTENT ============ */
.main-content {
    margin-left:var(--sidebar-width);
    min-height:100vh;
    transition:var(--transition);
}

.main-content.expanded { margin-left:70px; }

.topbar {
    padding:16px 30px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    border-bottom:1px solid var(--border-glass);
    backdrop-filter:blur(10px);
    background:rgba(10,14,26,0.7);
    position:sticky;
    top:0;
    z-index:500;
}

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

.toggle-btn {
    background:var(--bg-glass);
    border:1px solid var(--border-glass);
    color:var(--text-primary);
    padding:8px 12px;
    border-radius:8px;
    cursor:pointer;
    transition:var(--transition);
    font-size:1rem;
}

.toggle-btn:hover { background:var(--accent-1); border-color:var(--accent-1); }

.page-title { font-size:1.2rem; font-weight:700; }
.breadcrumb-custom { font-size:0.8rem; color:var(--text-muted); margin-top:2px; }

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

.topbar-btn {
    background:var(--bg-glass);
    border:1px solid var(--border-glass);
    color:var(--text-secondary);
    width:40px;height:40px;
    border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    cursor:pointer;
    transition:var(--transition);
    position:relative;
    text-decoration:none;
}

.topbar-btn:hover { background:var(--accent-1); color:#fff; border-color:var(--accent-1); }

.topbar-btn .badge-dot {
    position:absolute;top:6px;right:6px;
    width:8px;height:8px;
    background:var(--accent-6);
    border-radius:50%;
}

.content-area { padding:24px 30px; }

/* ============ CARDS ============ */
.glass-card {
    background:var(--bg-card);
    backdrop-filter:blur(20px);
    border:1px solid var(--border-glass);
    border-radius:var(--radius);
    padding:24px;
    transition:var(--transition);
}

.glass-card:hover { border-color:rgba(99,102,241,0.3); box-shadow:var(--shadow-glow); }

.stat-card {
    position:relative;
    overflow:hidden;
}

.stat-card .stat-icon {
    width:50px;height:50px;
    border-radius:12px;
    display:flex;align-items:center;justify-content:center;
    font-size:1.3rem;color:#fff;
    margin-bottom:16px;
}

.stat-card .stat-value { font-size:1.8rem; font-weight:800; line-height:1; margin-bottom:4px; }
.stat-card .stat-label { font-size:0.82rem; color:var(--text-secondary); font-weight:500; }
.stat-card .stat-change { font-size:0.75rem; margin-top:8px; font-weight:600; }
.stat-card .stat-change.up { color:var(--accent-4); }
.stat-card .stat-change.down { color:var(--accent-6); }

.stat-card::after {
    content:'';
    position:absolute;
    top:-20px;right:-20px;
    width:100px;height:100px;
    border-radius:50%;
    opacity:0.06;
    transition:var(--transition);
}

.stat-card:hover::after { opacity:0.12; transform:scale(1.2); }

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

.table-dark-custom {
    width:100%;
    border-collapse:separate;
    border-spacing:0;
}

.table-dark-custom thead th {
    padding:12px 16px;
    font-size:0.78rem;
    text-transform:uppercase;
    letter-spacing:0.5px;
    color:var(--text-muted);
    font-weight:600;
    border-bottom:1px solid var(--border-glass);
    white-space:nowrap;
}

.table-dark-custom tbody td {
    padding:12px 16px;
    font-size:0.88rem;
    border-bottom:1px solid rgba(255,255,255,0.03);
    color:var(--text-secondary);
    vertical-align:middle;
}

.table-dark-custom tbody tr { transition:var(--transition); }
.table-dark-custom tbody tr:hover { background:var(--bg-glass); }

/* ============ BUTTONS ============ */
.btn-sm-custom {
    padding:6px 14px;
    font-size:0.8rem;
    border-radius:8px;
    border:none;
    cursor:pointer;
    font-weight:500;
    transition:var(--transition);
    text-decoration:none;
    display:inline-flex;
    align-items:center;
    gap:5px;
    font-family:'Inter',sans-serif;
}

.btn-primary-custom { background:var(--gradient-1); color:#fff; }
.btn-success-custom { background:var(--gradient-2); color:#fff; }
.btn-danger-custom { background:var(--gradient-3); color:#fff; }
.btn-outline-custom { background:transparent; border:1px solid var(--border-glass); color:var(--text-secondary); }
.btn-outline-custom:hover { border-color:var(--accent-1); color:var(--accent-1); }

.btn-sm-custom:hover { transform:translateY(-1px); box-shadow:0 4px 12px rgba(0,0,0,0.3); }

/* ============ FORMS ============ */
.form-group { margin-bottom:18px; }
.form-group label { display:block; font-size:0.82rem; font-weight:600; color:var(--text-secondary); margin-bottom:6px; }

.form-group input,
.form-group select,
.form-group textarea {
    width:100%;
    padding:10px 14px;
    background:var(--bg-glass);
    border:1px solid var(--border-glass);
    border-radius:8px;
    color:var(--text-primary);
    font-size:0.9rem;
    transition:var(--transition);
    outline:none;
    font-family:'Inter',sans-serif;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color:var(--accent-1);
    box-shadow:0 0 0 3px rgba(99,102,241,0.1);
}

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

/* ============ MODAL ============ */
.modal-dark .modal-content {
    background:var(--bg-secondary);
    border:1px solid var(--border-glass);
    border-radius:16px;
    color:var(--text-primary);
}

.modal-dark .modal-header { border-bottom:1px solid var(--border-glass); padding:20px 24px; }
.modal-dark .modal-title { font-weight:700; font-size:1.1rem; }
.modal-dark .modal-body { padding:24px; }
.modal-dark .modal-footer { border-top:1px solid var(--border-glass); padding:16px 24px; }
.modal-dark .btn-close { filter:invert(1); }

/* ============ BADGES ============ */
.badge { padding:4px 10px; border-radius:6px; font-size:0.72rem; font-weight:600; }

/* ============ ALERTS / FLASH ============ */
.alert-custom {
    padding:14px 20px;
    border-radius:10px;
    margin-bottom:20px;
    font-size:0.9rem;
    display:flex;
    align-items:center;
    gap:10px;
    animation:slideDown 0.3s ease;
    border:1px solid;
}

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

.alert-success { background:rgba(16,185,129,0.1); border-color:rgba(16,185,129,0.2); color:var(--accent-4); }
.alert-danger { background:rgba(239,68,68,0.1); border-color:rgba(239,68,68,0.2); color:var(--accent-6); }
.alert-warning { background:rgba(245,158,11,0.1); border-color:rgba(245,158,11,0.2); color:var(--accent-5); }
.alert-info { background:rgba(6,182,212,0.1); border-color:rgba(6,182,212,0.2); color:var(--accent-3); }

/* ============ CHART CONTAINER ============ */
.chart-container { position:relative; padding:16px; }

/* ============ SEARCH & FILTER BAR ============ */
.filter-bar {
    display:flex;
    align-items:center;
    gap:12px;
    margin-bottom:20px;
    flex-wrap:wrap;
}

.search-box {
    flex:1;
    min-width:200px;
    position:relative;
}

.search-box input {
    width:100%;
    padding:10px 14px 10px 40px;
    background:var(--bg-glass);
    border:1px solid var(--border-glass);
    border-radius:10px;
    color:var(--text-primary);
    font-size:0.88rem;
    outline:none;
    transition:var(--transition);
    font-family:'Inter',sans-serif;
}

.search-box input:focus { border-color:var(--accent-1); }
.search-box i { position:absolute; left:14px; top:50%; transform:translateY(-50%); color:var(--text-muted); }

/* ============ PAGINATION ============ */
.pagination .page-item .page-link {
    background:var(--bg-glass);
    border:1px solid var(--border-glass);
    color:var(--text-secondary);
    padding:8px 14px;
    border-radius:8px;
    margin:0 2px;
    font-size:0.85rem;
    transition:var(--transition);
}

.pagination .page-item.active .page-link { background:var(--gradient-1); color:#fff; border-color:transparent; }
.pagination .page-item .page-link:hover { background:var(--accent-1); color:#fff; }
.pagination .page-item.disabled .page-link { opacity:0.4; pointer-events:none; }

/* ============ RESPONSIVE ============ */
@media(max-width:768px) {
    .sidebar { transform:translateX(-100%); }
    .sidebar.mobile-open { transform:translateX(0); }
    .main-content, .main-content.expanded { margin-left:0; }
    .login-container { flex-direction:column; }
    .login-brand { padding:30px; }
    .content-area { padding:16px; }
    .topbar { padding:12px 16px; }
    .filter-bar { flex-direction:column; }
}

/* ============ ANIMATIONS ============ */
.fade-in { animation:fadeIn 0.5s ease; }
@keyframes fadeIn { from{opacity:0;} to{opacity:1;} }

.slide-in { animation:slideIn 0.4s ease; }
@keyframes slideIn { from{opacity:0;transform:translateX(-20px);} to{opacity:1;transform:translateX(0);} }

/* Row grid helpers */
.stats-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(220px,1fr)); gap:20px; margin-bottom:24px; }
.grid-2 { display:grid; grid-template-columns:repeat(auto-fit, minmax(400px,1fr)); gap:20px; margin-bottom:24px; }

/* Activity list */
.activity-item { display:flex; gap:12px; padding:12px 0; border-bottom:1px solid rgba(255,255,255,0.03); }
.activity-item:last-child { border-bottom:none; }
.activity-dot { width:8px;height:8px; border-radius:50%; margin-top:6px; flex-shrink:0; }
.activity-text { font-size:0.85rem; color:var(--text-secondary); }
.activity-time { font-size:0.75rem; color:var(--text-muted); margin-top:2px; }

/* Empty state */
.empty-state { text-align:center; padding:40px; color:var(--text-muted); }
.empty-state i { font-size:3rem; margin-bottom:12px; display:block; opacity:0.3; }
.empty-state p { font-size:0.9rem; }