/* Custom Styles for Dạy Lái Xe Hải Vân */

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

body {
    font-family: 'Inter', 'Roboto', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* Smooth Scrolling - Disabled */
html {
    scroll-behavior: auto;
}

/* Selection Color */
::selection {
    background: #2563EB;
    color: white;
}

::-moz-selection {
    background: #2563EB;
    color: white;
}

/* Custom Gradients */
.gradient-bg-1 {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.gradient-bg-2 {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.gradient-bg-3 {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.gradient-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Shimmer Animation for Top Bar */
@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

.animate-shimmer {
    animation: shimmer 3s infinite;
}

/* Custom Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

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

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(37, 99, 235, 0.5);
    }
    50% {
        box-shadow: 0 0 40px rgba(37, 99, 235, 0.8);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease-out;
}

.animate-fadeIn {
    animation: fadeIn 0.8s ease-out;
}

.animate-slideInLeft {
    animation: slideInLeft 0.6s ease-out;
}

.animate-slideInRight {
    animation: slideInRight 0.6s ease-out;
}

.animate-bounce {
    animation: bounce 2s infinite;
}

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

.animate-rotate {
    animation: rotate 20s linear infinite;
}

.animate-glow {
    animation: glow 2s ease-in-out infinite;
}

.animate-fadeInScale {
    animation: fadeInScale 0.5s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Animate on scroll */
.animate-on-scroll {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

/* Header Styles */
header {
    transition: all 0.3s ease;
}

header.scrolled {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Mobile Menu */
#mobile-menu {
    transition: all 0.3s ease;
}

#mobile-menu.active {
    display: block;
}

/* Hero Section */
#home {
    min-height: 100vh;
    display: flex;
    align-items: center;
}

/* Hover Effects */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Button Styles */
button, a.button {
    transition: all 0.3s ease;
    cursor: pointer;
}

button:hover, a.button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

button:active, a.button:active {
    transform: translateY(0);
}

/* Card Styles */
.card {
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

/* Course Cards */
.course-card {
    position: relative;
    overflow: hidden;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.course-card:hover::before {
    transform: scaleX(1);
}

/* Advantages Grid */
.advantage-item {
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
}

.advantage-item:hover .advantage-icon {
    animation: bounce 0.6s ease;
}

/* Process Steps */
.process-step {
    position: relative;
    padding-left: 80px;
}

.process-step::before {
    content: '';
    position: absolute;
    left: 32px;
    top: 64px;
    width: 2px;
    height: calc(100% + 32px);
    background: #e5e7eb;
}

.process-step:last-child::before {
    display: none;
}

/* Review Cards */
.review-card {
    transition: all 0.3s ease;
}

.review-card:hover {
    transform: scale(1.05);
}

/* Form Styles */
input:focus, 
select:focus, 
textarea:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

input::placeholder,
textarea::placeholder {
    color: #9ca3af;
}

/* Scroll to Top Button */
#scrollToTop {
    transition: all 0.3s ease;
}

#scrollToTop.show {
    opacity: 1;
    pointer-events: auto;
}

#scrollToTop:hover {
    transform: translateY(-3px);
}

/* Loading Animation */
.loading {
    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); }
}

/* Success/Error Messages */
.message {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-top: 1rem;
    animation: fadeIn 0.3s ease;
}

.message-success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.message-error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

/* Stats Counter Animation */
.stat-number {
    display: inline-block;
    transition: all 0.3s ease;
}

/* Image Styles */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Hero Image Container */
.hero-image-container {
    position: relative;
    animation: fadeIn 1s ease-out;
}

/* Responsive Typography */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.25rem;
    }
}

/* Material Icons Alignment */
.material-icons {
    vertical-align: middle;
}

/* Selection Color */
::selection {
    background-color: #2563eb;
    color: white;
}

::-moz-selection {
    background-color: #2563eb;
    color: white;
}

/* Custom Scrollbar - Disabled */

/* Print Styles */
@media print {
    header, footer, #scrollToTop {
        display: none;
    }
    
    body {
        font-size: 12pt;
    }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus Visible */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    body {
        color: #000;
        background-color: #fff;
    }
    
    a {
        text-decoration: underline;
    }
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    /* Add dark mode styles if needed */
}

/* Utility Classes */
.text-shadow {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.box-shadow-sm {
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.box-shadow-md {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.box-shadow-lg {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.box-shadow-xl {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.box-shadow-2xl {
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* Spacing Utilities */
.section-spacing {
    padding-top: 5rem;
    padding-bottom: 5rem;
}

/* Container Max Width */
.container {
    max-width: 1280px;
}

/* Aspect Ratio */
.aspect-video {
    aspect-ratio: 16 / 9;
}

.aspect-square {
    aspect-ratio: 1 / 1;
}

/* Glass Effect */
.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Hover Effects */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.15);
}

.hover-scale {
    transition: transform 0.3s ease;
}

.hover-scale:hover {
    transform: scale(1.05);
}

/* Gradient Borders */
.gradient-border {
    position: relative;
    background: white;
    border-radius: 1rem;
}

.gradient-border::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    z-index: -1;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: #2563EB;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #1d4ed8;
}

/* Loading Animation */
.loading-dots {
    display: inline-block;
}

.loading-dots::after {
    content: '';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: ''; }
    40% { content: '.'; }
    60% { content: '..'; }
    80%, 100% { content: '...'; }
}

/* Background Patterns */
.bg-pattern-dots {
    background-image: radial-gradient(circle, #e5e7eb 1px, transparent 1px);
    background-size: 20px 20px;
}

.bg-pattern-grid {
    background-image: 
        linear-gradient(#e5e7eb 1px, transparent 1px),
        linear-gradient(90deg, #e5e7eb 1px, transparent 1px);
    background-size: 20px 20px;
}

/* Card Hover Effects */
.card-interactive {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-interactive:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* Ribbon Effect */
.ribbon {
    position: absolute;
    top: 10px;
    right: -5px;
    background: #ef4444;
    color: white;
    padding: 5px 15px;
    font-weight: bold;
    font-size: 0.75rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.ribbon::before {
    content: '';
    position: absolute;
    bottom: -5px;
    right: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid #b91c1c;
    border-bottom: 5px solid transparent;
}

/* Floating Animation */
.float {
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Shine Effect */
.shine {
    position: relative;
    overflow: hidden;
}

.shine::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s;
}

.shine:hover::before {
    left: 100%;
}

/* Neon Glow Effect */
.neon-glow {
    text-shadow: 
        0 0 5px rgba(37, 99, 235, 0.5),
        0 0 10px rgba(37, 99, 235, 0.5),
        0 0 20px rgba(37, 99, 235, 0.5),
        0 0 40px rgba(37, 99, 235, 0.3);
}

/* 3D Card Effect */
.card-3d {
    transform-style: preserve-3d;
    transition: transform 0.6s;
}

.card-3d:hover {
    transform: rotateY(5deg) rotateX(5deg) scale(1.05);
}

/* Parallax Effect */
.parallax {
    transition: transform 0.3s ease-out;
}

/* Ripple Effect */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

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

/* Skew on Hover */
.skew-hover {
    transition: transform 0.3s ease;
}

.skew-hover:hover {
    transform: skewX(-5deg);
}

/* Gradient Border Animation */
@keyframes gradient-border {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

.animated-gradient-border {
    position: relative;
    background: white;
    border-radius: 1rem;
}

.animated-gradient-border::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: inherit;
    background: linear-gradient(45deg, #667eea, #764ba2, #667eea);
    background-size: 200% 200%;
    animation: gradient-border 3s ease infinite;
    z-index: -1;
}

/* Smooth Reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s, transform 0.6s;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Bounce on Scroll */
@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        transform: scale(1);
    }
}

.bounce-in {
    animation: bounceIn 0.8s;
}

/* Backdrop Blur */
.backdrop-blur {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* Responsive Images */
.img-responsive {
    width: 100%;
    height: auto;
    object-fit: cover;
}

/* Card Hover Effects */
.card-interactive {
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-interactive:hover {
    transform: scale(1.02);
    box-shadow: 0 20px 25px -5px rgba(37, 99, 235, 0.1);
}

/* Badge Styles */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* Divider */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, #e5e7eb, transparent);
}

/* Pulse Animation for Important Elements */
.pulse-important {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

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

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

/* Overlay */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 40;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* Responsive Utilities */
@media (max-width: 640px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}

@media (max-width: 768px) {
    .section-spacing {
        padding-top: 3rem;
        padding-bottom: 3rem;
    }
}