/* style.css */
@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #1e3a8a; 
    --secondary-color: #d97706; 
    --bg-color: #f8fafc;
    --card-bg: rgba(255, 255, 255, 0.95);
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Sarabun', sans-serif; }
i, .fa-solid, .fa-regular { font-family: "Font Awesome 6 Free" !important; font-weight: 900; }

body {
    background: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
    min-height: 100vh; color: #333; overflow-x: hidden;
}

.fade-in { animation: fadeIn 0.5s ease-in-out forwards; }
.slide-up { animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

.blink-red { animation: blinkRed 1s infinite; background-color: #fee2e2 !important; }
@keyframes blinkRed { 0%, 100% { background-color: #fee2e2; } 50% { background-color: #fca5a5; } }

.glass-card {
    background: var(--card-bg); backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border-radius: 1.5rem; transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.glass-card:hover { transform: translateY(-5px); box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1); }

.option-label {
    display: flex; align-items: center; padding: 1rem 1.5rem;
    border: 2px solid #e2e8f0; border-radius: 1rem; cursor: pointer;
    transition: all 0.2s ease; background: white;
}
.option-label:hover { border-color: var(--secondary-color); background: #fffbeb; }
.option-input:checked + .option-label {
    border-color: var(--primary-color); background: #eff6ff;
    box-shadow: 0 4px 12px rgba(30, 58, 138, 0.1);
}
.option-input { display: none; }

.swal2-popup { border-radius: 1.5rem !important; padding: 2rem !important; font-family: 'Sarabun', sans-serif !important; }
.swal2-confirm { background-color: var(--primary-color) !important; border-radius: 0.75rem !important; padding: 0.75rem 2rem !important; }

.progress-container { width: 100%; background-color: #e2e8f0; border-radius: 999px; height: 8px; overflow: hidden; }
.progress-bar { height: 100%; background: linear-gradient(90deg, var(--primary-color), var(--secondary-color)); width: 0%; transition: width 0.4s ease; }

.correct-answer { border-color: #10b981 !important; background-color: #d1fae5 !important; }
.wrong-answer { border-color: #ef4444 !important; background-color: #fee2e2 !important; }

/* Toggle Switch */
.toggle-checkbox:checked { right: 0; border-color: #10b981; }
.toggle-checkbox:checked + .toggle-label { background-color: #10b981; }

/* Custom Scrollbar for Tables */
.custom-scrollbar::-webkit-scrollbar { width: 8px; height: 8px; }
.custom-scrollbar::-webkit-scrollbar-track { background: #f1f1f1; border-radius: 10px; }
.custom-scrollbar::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }
.custom-scrollbar::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* Sticky Table Header */
.sticky-header th {
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}