/* AYB IoT Cloud Platform - Styles */
:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-card: #1a2332;
    --bg-input: #0d1320;
    --accent: #00b4d8;
    --accent-hover: #0096c7;
    --accent-glow: rgba(0, 180, 216, 0.25);
    --text-primary: #f0f4f8;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: #1e293b;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --radius: 12px;
    --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

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

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

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

/* Auth pages */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(0, 180, 216, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0, 119, 182, 0.06) 0%, transparent 50%),
        var(--bg-primary);
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow);
}

.auth-card h1 {
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 0.25rem;
}

.subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.logo {
    display: block;
    max-width: 180px;
    height: auto;
    margin: 0 auto 1.5rem;
}

.client-logo {
    max-width: 120px;
    max-height: 80px;
    object-fit: contain;
    display: block;
    margin: 0 auto 1rem;
}

/* Forms */
.form-group { margin-bottom: 1.25rem; }

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

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

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

.form-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #0077b6);
    color: #fff;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-hover), #005f8a);
    color: #fff;
    transform: translateY(-1px);
}

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

.btn-secondary:hover { background: var(--border); color: var(--text-primary); }

.btn-danger {
    background: var(--error);
    color: #fff;
}

.btn-danger:hover { background: #dc2626; color: #fff; }

.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.85rem; }

.btn-block { width: 100%; }

/* Alerts */
.alert {
    padding: 0.85rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
}

.alert-error { background: rgba(239, 68, 68, 0.15); border: 1px solid rgba(239, 68, 68, 0.3); color: #fca5a5; }
.alert-success { background: rgba(16, 185, 129, 0.15); border: 1px solid rgba(16, 185, 129, 0.3); color: #6ee7b7; }
.alert-info { background: rgba(59, 130, 246, 0.15); border: 1px solid rgba(59, 130, 246, 0.3); color: #93c5fd; }
.alert-warning { background: rgba(245, 158, 11, 0.15); border: 1px solid rgba(245, 158, 11, 0.3); color: #fcd34d; }

/* Admin layout */
.admin-layout { display: flex; min-height: 100vh; }

.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 1.5rem 0;
    flex-shrink: 0;
}

.sidebar-logo {
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1rem;
}

.sidebar-logo img { max-width: 140px; height: auto; }

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: all 0.2s;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(0, 180, 216, 0.1);
    color: var(--accent);
}

.main-content {
    flex: 1;
    padding: 2rem;
    overflow-x: auto;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h1 { font-size: 1.75rem; font-weight: 600; }

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Cards & tables */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

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

.card-header h2 { font-size: 1.1rem; font-weight: 600; }

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

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

th, td {
    padding: 0.85rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

tr:hover td { background: rgba(255, 255, 255, 0.02); }

/* Badges */
.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-site-admin { background: rgba(168, 85, 247, 0.2); color: #c084fc; }
.badge-admin { background: rgba(0, 180, 216, 0.2); color: var(--accent); }
.badge-client { background: rgba(100, 116, 139, 0.2); color: #94a3b8; }
.badge-default { background: rgba(100, 116, 139, 0.2); color: #94a3b8; }
.badge-active { background: rgba(16, 185, 129, 0.2); color: #6ee7b7; }
.badge-inactive { background: rgba(239, 68, 68, 0.2); color: #fca5a5; }

/* Platform grid */
.platform-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.platform-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    transition: all 0.2s;
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}

.platform-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px var(--accent-glow);
    color: inherit;
}

.platform-card img {
    max-width: 100px;
    max-height: 60px;
    object-fit: contain;
    margin-bottom: 1rem;
}

.platform-card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.platform-card .role { margin-top: 0.75rem; }

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
}

.stat-card .value { font-size: 2rem; font-weight: 700; color: var(--accent); }
.stat-card .label { font-size: 0.85rem; color: var(--text-secondary); }

/* QR code area for 2FA */
.qr-container {
    text-align: center;
    margin: 1.5rem 0;
    padding: 1rem;
    background: #fff;
    border-radius: 8px;
    display: inline-block;
}

.backup-codes {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
    font-family: monospace;
    font-size: 0.9rem;
    margin: 1rem 0;
}

.backup-codes span {
    background: var(--bg-input);
    padding: 0.5rem;
    border-radius: 4px;
    text-align: center;
}

.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-2 { margin-bottom: 1rem; }

.actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

@media (max-width: 768px) {
    .admin-layout { flex-direction: column; }
    .sidebar { width: 100%; }
    .form-row { grid-template-columns: 1fr; }
    .auth-card { padding: 1.5rem; }
}