/* TeachMatch - Primary: #ffab17 | Secondary: #000000 | Modern, easy-to-use UI */
:root {
    /* Brand */
    --primary: #ffab17;
    --primary-hover: #e69a0f;
    --primary-light: rgba(255, 171, 23, 0.15);
    --primary-light-bg: rgba(255, 171, 23, 0.08);
    --secondary: #000000;
    --secondary-hover: #1a1a1a;
    /* Aliases for compatibility */
    --brand-gold: #ffab17;
    --brand-black: #000000;
    --brand-gold-rgb: 255, 171, 23;
    --brand-gold-rgba: rgba(255, 171, 23, 0.15);
    --brand-gold-light: rgba(255, 171, 23, 0.18);
    --brand-gold-dark: #e69a0f;
    /* Neutrals */
    --text: #1a1a1a;
    --text-muted: #6b7280;
    --border: #e5e7eb;
    --border-light: #f3f4f6;
    --bg: #ffffff;
    --bg-subtle: #f9fafb;
    /* Shape */
    --radius-sm: 6px;
    --radius: 8px;
    --radius-lg: 10px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
}

* {
    box-sizing: border-box;
}

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

/* ----- Navigation ----- */
.navbar-dark {
    background-color: var(--secondary) !important;
    border-bottom: 3px solid var(--primary);
    box-shadow: var(--shadow);
}

.navbar-brand {
    font-weight: 700;
    color: #fff !important;
    letter-spacing: -0.02em;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.95) !important;
    transition: color 0.2s ease, background 0.2s ease;
    padding: 0.5rem 0.85rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.navbar-nav .nav-link:hover {
    color: var(--primary) !important;
}

.navbar-toggler {
    border: 2px solid var(--primary);
    color: var(--primary);
    border-radius: var(--radius-sm);
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem var(--brand-gold-rgba);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.9%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

@media (max-width: 991.98px) {
    .navbar-collapse {
        background-color: var(--secondary);
        border-top: 1px solid var(--primary);
        margin-top: 0.5rem;
        padding: 0.75rem;
        border-radius: var(--radius-sm);
    }
    .navbar-nav .nav-link {
        padding: 0.65rem 1rem;
        border-bottom: 1px solid rgba(255, 171, 23, 0.2);
    }
    .navbar-nav .nav-link:last-child { border-bottom: none; }
    .navbar-nav .nav-link:hover {
        background-color: var(--primary-light);
        border-radius: var(--radius-sm);
    }
}

/* ----- Buttons: Primary = gold (main CTA), Outline = black (secondary) ----- */
.btn-primary {
    background-color: var(--primary);
    border: 2px solid var(--primary);
    color: var(--secondary);
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    color: var(--secondary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline-primary {
    color: var(--secondary);
    border: 2px solid var(--secondary);
    background: transparent;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

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

.btn-success,
.btn-warning {
    background-color: var(--primary);
    border: 2px solid var(--primary);
    color: var(--secondary);
    font-weight: 600;
    border-radius: var(--radius-sm);
}

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

/* ----- Cards: clean, light, with primary accent where needed ----- */
.card {
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: var(--bg);
    box-shadow: var(--shadow);
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    background-color: var(--secondary);
    color: #fff;
    border-bottom: none;
    font-weight: 600;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: 0.85rem 1.25rem;
}

.stat-card {
    background-color: var(--primary);
    color: var(--secondary);
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.dashboard-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg);
    transition: box-shadow 0.2s ease;
}

.dashboard-card:hover {
    box-shadow: var(--shadow-md);
}

.profile-completion {
    background-color: var(--secondary);
    color: #fff;
    border-radius: var(--radius-lg);
}

/* ----- Forms: clear labels, primary focus ----- */
.form-control,
.form-select {
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem var(--brand-gold-rgba);
}

.form-label {
    font-weight: 500;
    color: var(--text);
}

/* ----- Notifications & activity ----- */
.notification-item,
.activity-item {
    border-left: 4px solid var(--primary);
    transition: background 0.2s ease;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.notification-item:hover,
.activity-item:hover {
    background-color: var(--primary-light-bg);
}

/* ----- Badges ----- */
.badge.bg-primary {
    background-color: var(--secondary) !important;
    color: #fff !important;
}

.badge.bg-success,
.badge.bg-warning {
    background-color: var(--primary) !important;
    color: var(--secondary) !important;
}

/* ----- Progress ----- */
.progress {
    border-radius: var(--radius-sm);
    background-color: var(--border-light);
}

.progress-bar {
    background-color: var(--primary);
    border-radius: var(--radius-sm);
}

/* ----- Links ----- */
a {
    color: var(--secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--primary);
}

/* ----- Tables ----- */
.table-primary {
    background-color: var(--primary-light);
    color: var(--text);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: var(--primary-light-bg);
}

/* ----- Alerts ----- */
.alert-primary {
    background-color: var(--primary-light-bg);
    border: 1px solid var(--primary);
    color: var(--text);
    border-radius: var(--radius-sm);
}

.alert-success {
    background-color: var(--primary-light-bg);
    border: 1px solid var(--primary);
    color: var(--text);
    border-radius: var(--radius-sm);
}

/* ----- Brand background helpers ----- */
.bg-gradient-brand,
.bg-gradient-brand-reverse {
    background-color: var(--secondary);
}

/* ----- Utilities ----- */
.text-brand-black { color: var(--secondary) !important; }
.text-brand-gold { color: var(--primary) !important; }
.border-brand-gold { border-color: var(--primary) !important; }
.border-brand-black { border-color: var(--secondary) !important; }
.shadow-brand { box-shadow: var(--shadow-md); }
.shadow-brand-lg { box-shadow: var(--shadow-lg); }
.hover-lift { transition: transform 0.2s ease; }
.hover-lift:hover { transform: translateY(-2px); }

/* ----- Scrollbar ----- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--secondary); }

/* ----- Modals ----- */
.modal-content {
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
}

.modal-header {
    background-color: var(--secondary);
    color: #fff;
    border-bottom: none;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: 1rem 1.25rem;
}

.modal-footer {
    border-top: 1px solid var(--border);
}

/* ----- Pagination ----- */
.page-link {
    color: var(--secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm) !important;
}

.page-link:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--secondary);
}

.page-item.active .page-link {
    background-color: var(--secondary);
    border-color: var(--secondary);
    color: #fff;
}

/* ----- Dropdowns ----- */
.dropdown-menu {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
}

.dropdown-item:hover {
    background-color: var(--primary-light-bg);
    color: var(--text);
}

.spinner-border-brand { color: var(--primary); }

/* ----- Status ----- */
.status-active { color: var(--primary); font-weight: 600; }
.status-pending { color: #b45309; font-weight: 600; }
.status-inactive { color: var(--text-muted); font-weight: 600; }

/* ----- Responsive ----- */
@media (max-width: 768px) {
    .stat-card,
    .dashboard-card { margin-bottom: 1rem; }
}

@media print {
    .navbar, .btn, .card-header {
        background: #fff !important;
        color: #000 !important;
    }
    .stat-card {
        background: #fff !important;
        color: #000 !important;
        border: 1px solid #000;
    }
}