/* IBT TOPIK Main Styles */

/* Font Awesome Icons */
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css');

/* Custom Variables */
:root {
    /* Neutral, modern palette */
    --primary-color: #3b82f6;           /* muted blue */
    --primary-color-hover: #2563eb;
    --secondary-color: #6b7280;         /* slate */
    --success-color: #16a34a;
    --danger-color: #dc2626;
    --warning-color: #f59e0b;
    --info-color: #0ea5e9;

    --text-strong: #0f172a;             /* very dark slate */
    --text-muted: #6b7280;
    --bg-surface: #ffffff;
    --bg-muted: #f6f7f9;
    --border-color: #e5e7eb;            /* light gray border */

    --border-radius: 12px;
    --box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
    --box-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
    --transition: all 0.25s ease;
}

/* Global Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
    line-height: 1.55;
    color: var(--text-strong);
    background-color: var(--bg-muted);
}

/* Links */
a { color: var(--primary-color); text-decoration: none; }
a:hover { color: var(--primary-color-hover); text-decoration: underline; }

/* Card Enhancements */
.card {
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

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

.card-header {
    border-radius: var(--border-radius) var(--border-radius) 0 0 !important;
    background: var(--bg-surface) !important;
    color: var(--text-strong) !important;
    border-bottom: 1px solid var(--border-color);
}

/* Tone down strong color headers if present */
.card-header.bg-primary,
.card-header.bg-success,
.card-header.bg-danger,
.card-header.bg-warning,
.card-header.bg-info {
    background: var(--bg-surface) !important;
    color: var(--text-strong) !important;
}

/* Button Enhancements */
.btn {
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--box-shadow-lg);
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.1rem;
}

.btn-xs {
    padding: 0.25rem 0.5rem;
    font-size: 11px;
}

.btn-primary {
    background: linear-gradient(180deg, var(--primary-color), var(--primary-color-hover));
    border-color: var(--primary-color-hover);
}
.btn-primary:hover { filter: saturate(1.05); }

.btn-outline-secondary {
    color: var(--text-strong);
    border-color: var(--border-color);
}
.btn-outline-secondary:hover {
    background: #f3f4f6;
    border-color: var(--border-color);
}

/* Form Enhancements */
.form-control {
    border-radius: 10px;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    background: #fff;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-control-lg {
    padding: 0.75rem 1rem;
    font-size: 1.1rem;
}

/* Progress Bar */
.progress {
    border-radius: var(--border-radius);
    background-color: #e9ecef;
}

.progress-bar {
    border-radius: var(--border-radius);
    transition: width 0.6s ease;
}

/* Badge Enhancements */
.badge {
    border-radius: 999px;
    font-weight: 500;
}

/* Alert Enhancements */
.alert { border-radius: 10px; border: 1px solid var(--border-color); }
.alert-success { background: #eefaf1; color: #14532d; border-left: 3px solid var(--success-color); }
.alert-danger { background: #fdecec; color: #7f1d1d; border-left: 3px solid var(--danger-color); }
.alert-info { background: #ecf8ff; color: #0c4a6e; border-left: 3px solid var(--info-color); }
.alert-warning { background: #fff7ed; color: #7c2d12; border-left: 3px solid var(--warning-color); }

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

.modal-header {
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
}

/* Navbar modern */
.navbar.bg-primary {
    background: #ffffff !important;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--box-shadow);
}
.navbar .navbar-brand { color: var(--text-strong) !important; font-weight: 600; }
.navbar .nav-link { color: #374151 !important; opacity: .85; }
.navbar .nav-link:hover { opacity: 1; }
.navbar .dropdown-menu { border: 1px solid var(--border-color); border-radius: 10px; }

/* Table compact & clean */
.table { border-color: var(--border-color) !important; }
.table thead th { background: #fafafb; color: #374151; font-weight: 600; }
.table-hover tbody tr:hover { background: #f9fafb; }
.table td, .table th { vertical-align: middle; }

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .card-body { padding: 1rem; }
    
    .btn-lg {
        padding: 0.5rem 1rem;
        font-size: 1rem;
    }
    
    .form-control-lg {
        padding: 0.5rem 0.75rem;
        font-size: 1rem;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in {
    animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* Print Styles */
@media print {
    .btn,
    .card-footer,
    .modal,
    .alert {
        display: none !important;
    }
    
    .card {
        border: none !important;
        box-shadow: none !important;
    }
    
    body {
        background: white !important;
    }
}