:root {
    --primary: #1c3b6b;
    --primary-light: #2a5298;
    --primary-dark: #0d2240;
    --accent: #e6a919;
    --text: #333;
    --text-light: #666;
    --bg: #f8f9fa;
    --card-bg: #fff;
    --border: #e0e0e0;
    --success: #4caf50;
    --danger: #d32f2f;
    --radius: 8px;
}

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

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

/* === NAV === */
#portal-nav {
    background: var(--primary);
    padding: 0 20px;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}
.nav-logo {
    color: white;
    font-size: 22px;
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 0.5px;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
}
.nav-links a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}
.nav-links a:hover { color: white; }
.nav-user {
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
}
.btn-nav {
    background: var(--accent) !important;
    color: var(--primary-dark) !important;
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 600 !important;
}
.nav-hamburger {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
}

/* === LAYOUT === */
.container { max-width: 1200px; margin: 0 auto; padding: 20px; }
.page-title { font-size: 28px; font-weight: 700; margin-bottom: 20px; color: var(--primary); }

/* === CARDS === */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    padding: 24px;
    margin-bottom: 16px;
    border: 1px solid var(--border);
    transition: box-shadow 0.2s, transform 0.2s;
}
.card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.1); }
.card-clickable { cursor: pointer; }
.card-clickable:hover { transform: translateY(-2px); }

/* === BUTTONS === */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: all 0.2s;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-light); }
.btn-accent { background: var(--accent); color: var(--primary-dark); }
.btn-accent:hover { background: #d4990f; }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #b71c1c; }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-full { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* === FORMS === */
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 6px;
}
.form-group input, .form-group select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    outline: none;
    transition: border 0.2s;
}
.form-group input:focus, .form-group select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(28,59,107,0.1);
}
.form-error { color: var(--danger); font-size: 13px; margin-top: 15px; text-align: center; min-height: 20px; }

/* === AUTH CARDS === */
.auth-card {
    background: white;
    border-radius: 12px;
    padding: 48px 40px;
    width: 420px;
    max-width: 95vw;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
}
.auth-card h1 { text-align: center; color: var(--primary); font-size: 26px; margin-bottom: 6px; }
.auth-card .subtitle { text-align: center; color: var(--text-light); font-size: 13px; margin-bottom: 30px; }

/* === GRIDS === */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }

/* === SERVICE CARDS === */
.service-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.2s;
}
.service-card:hover { border-color: var(--primary); box-shadow: 0 2px 12px rgba(28,59,107,0.1); }
.service-card .svc-info h3 { font-size: 15px; margin-bottom: 4px; }
.service-card .svc-info span { font-size: 12px; color: var(--text-light); }
.service-card .svc-right { text-align: right; }
.service-card .svc-price { font-size: 18px; font-weight: 700; color: var(--primary); }
.service-card .svc-duration { font-size: 12px; color: var(--text-light); }

/* === TIME SLOTS === */
.slot-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.slot-btn {
    padding: 10px 18px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: white;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s;
}
.slot-btn:hover { border-color: var(--primary); background: rgba(28,59,107,0.05); }
.slot-btn.selected { border-color: var(--primary); background: var(--primary); color: white; }

/* === STEPS === */
.steps { display: flex; gap: 0; margin-bottom: 30px; }
.step {
    flex: 1;
    text-align: center;
    padding: 12px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-light);
    border-bottom: 3px solid var(--border);
    cursor: default;
}
.step.active { color: var(--primary); border-color: var(--primary); }
.step.done { color: var(--success); border-color: var(--success); }

/* === BADGES === */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}
.badge-booked { background: #fff3e0; color: #e65100; }
.badge-confirmed { background: #e8f5e9; color: #2e7d32; }
.badge-completed { background: #e3f2fd; color: #1565c0; }
.badge-cancelled { background: #fce4ec; color: #c62828; }
.badge-paid { background: #f3e5f5; color: #7b1fa2; }

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .nav-links { display: none; position: absolute; top: 60px; left: 0; right: 0; background: var(--primary-dark); flex-direction: column; padding: 15px; gap: 12px; }
    .nav-links.show { display: flex; }
    .nav-hamburger { display: block; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .container { padding: 15px; }
    .auth-card { padding: 30px 20px; }
    .steps { font-size: 11px; }
}
@media (max-width: 480px) {
    .page-title { font-size: 22px; }
    .btn { padding: 10px 20px; font-size: 13px; }
}