:root {
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --sidebar-bg: rgba(15, 23, 42, 0.95);
    --border-color: rgba(255, 255, 255, 0.1);
    --primary: #10b981;
    --primary-glow: rgba(16, 185, 129, 0.4);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #3b82f6;
    --danger: #ef4444;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(16, 185, 129, 0.08), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(59, 130, 246, 0.08), transparent 25%);
    min-height: 100vh;
}

/* ================== LOGIN PAGE ================== */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(16px);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-weight: 800;
    font-size: 2rem;
    background: linear-gradient(to right, #10b981, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 5px;
}

.login-header p {
    color: var(--text-muted);
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 600;
}

.input-group input {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 12px 15px;
    border-radius: 10px;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

.input-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #059669);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 15px -3px var(--primary-glow);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 15px 20px -3px var(--primary-glow);
}

.btn-primary.full-width {
    width: 100%;
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-secondary {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    padding: 8px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.05);
    color: var(--text-main);
}

.error-msg {
    color: var(--danger);
    font-size: 0.85rem;
    margin-bottom: 15px;
    text-align: center;
    min-height: 20px;
}

/* ================== DASHBOARD PAGE ================== */
.dashboard-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.dashboard-sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 20px;
}

.sidebar-brand {
    margin-bottom: 40px;
}

.sidebar-brand h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
}

.badge {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent);
    font-size: 0.75rem;
    padding: 4px 8px;
    border-radius: 20px;
    font-weight: 600;
    display: inline-block;
    margin-top: 5px;
}

.sidebar-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.nav-item:hover {
    background: rgba(255,255,255,0.05);
    color: var(--text-main);
}

.nav-item.active {
    background: rgba(16, 185, 129, 0.1);
    color: var(--primary);
    box-shadow: inset 4px 0 0 var(--primary);
}

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

.dashboard-main {
    flex: 1;
    overflow-y: auto;
    padding: 30px 40px;
    background: rgba(0,0,0,0.2);
}

.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.top-header h1 {
    font-size: 1.8rem;
    font-weight: 800;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 15px;
}

.avatar {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    color: white;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.metric-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 25px;
    backdrop-filter: blur(10px);
}

.metric-card h3 {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 15px;
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 10px;
}

.metric-trend {
    font-size: 0.85rem;
    font-weight: 600;
}

.metric-trend.positive { color: var(--primary); }
.metric-trend.neutral { color: var(--accent); }

.table-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 25px;
    backdrop-filter: blur(10px);
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.table-header h2 {
    font-size: 1.2rem;
}

select {
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 8px 15px;
    border-radius: 8px;
    outline: none;
}

.table-responsive {
    overflow-x: auto;
}

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

.data-table th, .data-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-table td {
    font-size: 0.95rem;
}

.badge-action {
    padding: 4px 10px;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: bold;
}

.badge-success { background: rgba(16, 185, 129, 0.2); color: var(--primary); }
.badge-info { background: rgba(59, 130, 246, 0.2); color: var(--accent); }
.badge-danger { background: rgba(239, 68, 68, 0.2); color: var(--danger); }

pre.json-details {
    background: rgba(0,0,0,0.3);
    padding: 10px;
    border-radius: 5px;
    font-size: 0.75rem;
    color: #a855f7;
    white-space: pre-wrap;
}