/* ========================================
   KYNA ENGLISH - MAIN STYLESHEET
   ======================================== */

:root {
    --primary-color: #52c166;
    --secondary-color: #ff69b4;
    --dark-color: #2c3e50;
    --light-gray: #f8f9fa;
    --border-color: #dee2e6;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: #f5f7fa;
    color: var(--dark-color);
    line-height: 1.6;
}

/* ========================================
   NAVBAR
   ======================================== */
.navbar {
    border-bottom: 3px solid var(--primary-color);
    padding: 1rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-brand img {
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.nav-link {
    font-weight: 500;
    color: var(--dark-color) !important;
    margin: 0 0.5rem;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: var(--primary-color) !important;
    transform: translateY(-2px);
}

.nav-link i {
    margin-right: 0.5rem;
}

/* ========================================
   MAIN CONTENT
   ======================================== */
.main-content {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}

.container-custom {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* ========================================
   CARDS & SECTIONS
   ======================================== */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    transform: translateY(-2px);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), #45a858);
    color: white;
    border-radius: 12px 12px 0 0 !important;
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    font-size: 1.1rem;
    border: none;
}

.card-header i {
    margin-right: 0.75rem;
}

.card-body {
    padding: 2rem 1.5rem;
}

/* ========================================
   FORMS
   ======================================== */
.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-label .required {
    color: var(--danger-color);
    margin-left: 0.25rem;
}

.form-control,
.form-select {
    border-radius: 8px;
    border: 2px solid var(--border-color);
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(82, 193, 102, 0.15);
}

.form-control::placeholder {
    color: #adb5bd;
}

.form-text {
    font-size: 0.85rem;
    color: #6c757d;
    margin-top: 0.5rem;
}

/* ========================================
   CHECKBOXES & RADIO BUTTONS
   ======================================== */
.form-check {
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    background-color: var(--light-gray);
    border-radius: 8px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.form-check:hover {
    background-color: #e9ecef;
    border-color: var(--primary-color);
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.125rem;
    cursor: pointer;
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.form-check-label {
    cursor: pointer;
    margin-left: 0.5rem;
    font-size: 0.95rem;
}

.criteria-section {
    max-height: 400px;
    overflow-y: auto;
    padding: 1rem;
    background-color: #fff;
    border-radius: 8px;
    border: 2px solid var(--border-color);
}

.criteria-section::-webkit-scrollbar {
    width: 8px;
}

.criteria-section::-webkit-scrollbar-track {
    background: var(--light-gray);
    border-radius: 4px;
}

.criteria-section::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    border: none;
}

.btn i {
    margin-right: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #45a858);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #45a858, #3d9149);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(82, 193, 102, 0.3);
}

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background-color: #5a6268;
    transform: translateY(-2px);
}

.btn-success {
    background-color: var(--success-color);
}

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

.btn-warning {
    background-color: var(--warning-color);
    color: var(--dark-color);
}

.btn-info {
    background-color: var(--info-color);
    color: white;
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* ========================================
   TABLES
   ======================================== */
.table {
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

.table thead th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    border: none;
    padding: 1rem;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
}

.table-hover tbody tr:hover {
    background-color: var(--light-gray);
}

/* ========================================
   LEARNING PATH TABLE
   ======================================== */
.learning-path-table {
    margin-top: 1rem;
}

.learning-path-row {
    background-color: var(--light-gray);
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 8px;
    border: 2px solid var(--border-color);
}

.remove-path-btn {
    cursor: pointer;
}

/* ========================================
   ALERTS & NOTIFICATIONS
   ======================================== */
.alert {
    border-radius: 8px;
    border: none;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
}

/* ========================================
   BADGES
   ======================================== */
.badge {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.85rem;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    border-top: 3px solid var(--primary-color);
    margin-top: 4rem;
}

.footer a {
    color: var(--dark-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* ========================================
   LOADING SPINNER
   ======================================== */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    .card-body {
        padding: 1rem;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .table {
        font-size: 0.85rem;
    }
    
    .navbar-brand {
        font-size: 1.2rem;
    }
}

/* ========================================
   UTILITIES
   ======================================== */
.text-primary {
    color: var(--primary-color) !important;
}

.bg-primary {
    background-color: var(--primary-color) !important;
}

.border-primary {
    border-color: var(--primary-color) !important;
}

.section-divider {
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border: none;
    margin: 2rem 0;
}

.page-header {
    background: linear-gradient(135deg, var(--primary-color), #45a858);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    text-align: center;
}

.page-header h1 {
    margin: 0;
    font-weight: 700;
    font-size: 2rem;
}

.page-header p {
    margin: 0.5rem 0 0 0;
    opacity: 0.9;
}

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

.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}