/* Custom Styles for Trongcaykhoe.pro */

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #22c55e;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #16a34a;
}

/* Selection color */
::selection {
    background: #22c55e;
    color: white;
}

/* Animation classes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

.animate-pulse-slow {
    animation: pulse 2s infinite;
}

/* Hero gradient animation */
@keyframes gradientMove {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.animated-gradient {
    background-size: 200% 200%;
    animation: gradientMove 15s ease infinite;
}

/* Card hover effects */
.card-hover {
    transition: all 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Image zoom on hover */
.img-zoom {
    overflow: hidden;
}

.img-zoom img {
    transition: transform 0.5s ease;
}

.img-zoom:hover img {
    transform: scale(1.1);
}

/* Button ripple effect */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-ripple:active::after {
    width: 300px;
    height: 300px;
}

/* FAQ accordion */
.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-content.active {
    max-height: 500px;
}

.faq-btn.active i {
    transform: rotate(180deg);
}

/* Progress bar animation */
@keyframes progressBar {
    from {
        width: 0%;
    }
}

.progress-animated {
    animation: progressBar 2s ease-out forwards;
}

/* Floating action button */
.fab-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1000;
    transition: all 0.3s ease;
}

.fab-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(34, 197, 94, 0.4);
}

/* Toast notification */
.toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: #333;
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1001;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Table styles */
table {
    border-collapse: collapse;
}

table th,
table td {
    border-bottom: 1px solid #e5e7eb;
}

/* Mobile menu animation */
#mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

#mobile-menu.active {
    max-height: 500px;
}

/* Sticky nav shadow on scroll */
nav.scrolled {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

/* Image gallery lightbox placeholder */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

/* Print styles */
@media print {
    nav,
    #support,
    .fab-float,
    footer {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
    }
    
    h1 {
        font-size: 24pt;
    }
    
    h2 {
        font-size: 18pt;
    }
    
    a {
        text-decoration: none;
        color: inherit;
    }
}

/* AI-readable data attributes styling */
[data-ai-readable="true"] {
    /* Visual indicator for AI-readable content */
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .text-4xl {
        font-size: 1.875rem;
    }
    
    .text-5xl {
        font-size: 2.25rem;
    }
    
    .text-6xl {
        font-size: 2.5rem;
    }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    /* Uncomment to enable dark mode
    body {
        background: #1a1a1a;
        color: #e5e5e5;
    }
    */
}

/* Focus styles for accessibility */
a:focus,
button:focus {
    outline: 2px solid #22c55e;
    outline-offset: 2px;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #22c55e;
    color: white;
    padding: 8px;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* Loading skeleton */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Counter animation */
.counter {
    font-variant-numeric: tabular-nums;
}