@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
    --color-primary: #0a1628;
    --color-secondary: #1e3a5f;
    --color-accent: #00b4d8;
    --color-accent-alt: #7c3aed;
    --color-bg: #f8fafc;
    --color-bg-alt: #e2e8f0;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-white: #ffffff;
    --color-success: #10b981;
    --color-error: #ef4444;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-glow: 0 0 20px rgba(0,180,216,0.3);
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-primary);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }

.container {
    width: 100%;
    max-width: 72rem;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-alt));
    color: var(--color-white);
}

.btn-primary:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-primary);
    border: 1px solid var(--color-bg-alt);
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.header {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: var(--space-md) 0;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-white);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo i {
    color: var(--color-accent);
}

.nav-desktop {
    display: none;
}

.nav-desktop ul {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-desktop a {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.85);
    padding: var(--space-xs) 0;
    position: relative;
}

.nav-desktop a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-base);
}

.nav-desktop a:hover::after,
.nav-desktop a.active::after {
    width: 100%;
}

.nav-desktop a:hover,
.nav-desktop a.active {
    color: var(--color-white);
}

.burger {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.burger span {
    width: 20px;
    height: 2px;
    background: var(--color-white);
    transition: all var(--transition-base);
}

.burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(4px, 4px);
}

.burger.active span:nth-child(2) {
    opacity: 0;
}

.burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(4px, -4px);
}

.nav-mobile {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-primary);
    z-index: 99;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.nav-mobile.active {
    opacity: 1;
    visibility: visible;
}

.nav-mobile a {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-white);
    padding: var(--space-sm);
}

.nav-mobile a:hover {
    color: var(--color-accent);
}

.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    display: flex;
    align-items: center;
    padding: var(--space-3xl) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 150%;
    background: radial-gradient(circle, rgba(0,180,216,0.1) 0%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 36rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: rgba(0,180,216,0.15);
    color: var(--color-accent);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-xl);
    font-size: 0.75rem;
    font-weight: 500;
    margin-bottom: var(--space-lg);
}

.hero h1 {
    color: var(--color-white);
    font-size: 2.25rem;
    margin-bottom: var(--space-md);
}

.hero p {
    color: rgba(255,255,255,0.8);
    margin-bottom: var(--space-xl);
}

.hero-btns {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.section {
    padding: var(--space-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-header h2 {
    margin-bottom: var(--space-sm);
}

.section-header p {
    color: var(--color-text-light);
    max-width: 32rem;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    gap: var(--space-lg);
}

.feature-card {
    background: var(--color-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.feature-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.feature-icon {
    width: 2.5rem;
    height: 2.5rem;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-alt));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    margin-bottom: var(--space-md);
}

.feature-card h3 {
    font-size: 1rem;
    margin-bottom: var(--space-sm);
}

.feature-card p {
    font-size: 0.8125rem;
    color: var(--color-text-light);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.course-card {
    display: flex;
    flex-direction: column;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: var(--shadow-sm);
    transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.course-card:hover {
    border-color: rgba(0, 180, 216, 0.2);
    box-shadow: var(--shadow-md), 0 8px 24px rgba(0, 180, 216, 0.08);
    transform: translateY(-3px);
}

.course-card > .course-content:first-child {
    padding: var(--space-2xl);
}

.course-img {
    height: 10rem;
    overflow: hidden;
}

.course-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-content {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: var(--space-xl);
}

.course-tag {
    display: inline-block;
    background: rgba(0, 180, 216, 0.12);
    color: var(--color-accent);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: var(--space-sm);
}

.course-content h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
    color: var(--color-primary);
}

.course-content p {
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.55;
    margin-bottom: var(--space-lg);
}

.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-bg-alt);
    margin-top: auto;
}

.course-price {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-accent);
}

.course-meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: 0.75rem;
    color: var(--color-text-light);
}

.course-meta span {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.stats {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    padding: var(--space-2xl) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    text-align: center;
}

.stat-item h3 {
    font-size: 1.75rem;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
}

.stat-item p {
    font-size: 0.8125rem;
    color: rgba(255,255,255,0.8);
}

.testimonials {
    background: var(--color-bg-alt);
}

.testimonial-card {
    background: var(--color-white);
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
}

.testimonial-card:last-child {
    margin-bottom: 0;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: var(--space-md);
    color: var(--color-text);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.testimonial-avatar {
    width: 2.5rem;
    height: 2.5rem;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-alt));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-weight: 600;
}

.testimonial-info h4 {
    font-size: 0.875rem;
    margin-bottom: 0;
}

.testimonial-info p {
    font-size: 0.75rem;
    color: var(--color-text-light);
}

.cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    text-align: center;
}

.cta h2 {
    color: var(--color-white);
    margin-bottom: var(--space-md);
}

.cta p {
    color: rgba(255,255,255,0.8);
    margin-bottom: var(--space-xl);
    max-width: 28rem;
    margin-left: auto;
    margin-right: auto;
}

.faq-list {
    max-width: 40rem;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-white);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: none;
    border: none;
    text-align: left;
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.faq-question:hover {
    color: var(--color-accent);
}

.faq-question i {
    transition: transform var(--transition-base);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-answer-inner {
    padding: 0 var(--space-lg) var(--space-lg);
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.contact-wrapper {
    display: grid;
    gap: var(--space-xl);
}

.contact-info-card {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    color: var(--color-white);
}

.contact-info-card h3 {
    color: var(--color-white);
    margin-bottom: var(--space-lg);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.contact-item:last-child {
    margin-bottom: 0;
}

.contact-item i {
    color: var(--color-accent);
    font-size: 1rem;
    margin-top: 2px;
}

.contact-item p {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.9);
}

.contact-item a {
    color: var(--color-accent);
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-form-card {
    background: var(--color-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-form-card h3 {
    margin-bottom: var(--space-lg);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-bg-alt);
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(0,180,216,0.1);
}

.form-group textarea {
    min-height: 6rem;
    resize: vertical;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.form-checkbox input {
    width: auto;
    margin-top: 3px;
}

.form-checkbox label {
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-bottom: 0;
}

.form-checkbox a {
    color: var(--color-accent);
}

.map-wrapper {
    margin-top: var(--space-xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 15rem;
}

.map-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.footer {
    background: var(--color-primary);
    padding: var(--space-lg) 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    text-align: center;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-white);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.footer-logo i {
    color: var(--color-accent);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
}

.footer-links a {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.7);
}

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

.footer-copy {
    font-size: 0.6875rem;
    color: rgba(255,255,255,0.5);
}

.page-hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    padding: calc(var(--space-3xl) + 3rem) 0 var(--space-2xl);
    text-align: center;
}

.page-hero h1 {
    color: var(--color-white);
    margin-bottom: var(--space-sm);
}

.page-hero p {
    color: rgba(255,255,255,0.8);
    max-width: 32rem;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    font-size: 0.75rem;
}

.breadcrumb a {
    color: var(--color-accent);
}

.breadcrumb span {
    color: rgba(255,255,255,0.6);
}

.content-section {
    padding: var(--space-2xl) 0;
}

.content-card {
    background: var(--color-white);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.content-card h2 {
    font-size: 1.125rem;
    margin: var(--space-xl) 0 var(--space-md);
}

.content-card h2:first-child {
    margin-top: 0;
}

.content-card p {
    margin-bottom: var(--space-md);
    color: var(--color-text);
    font-size: 0.875rem;
}

.content-card ul {
    margin-bottom: var(--space-md);
    padding-left: var(--space-lg);
}

.content-card li {
    list-style: disc;
    margin-bottom: var(--space-sm);
    font-size: 0.875rem;
    color: var(--color-text);
}

.thank-you-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    padding: var(--space-xl);
}

.thank-you-card {
    background: var(--color-white);
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    max-width: 28rem;
}

.thank-you-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--color-success), var(--color-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-lg);
}

.thank-you-icon i {
    font-size: 1.5rem;
    color: var(--color-white);
}

.thank-you-card h1 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
}

.thank-you-card p {
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
}

.error-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    padding: var(--space-xl);
}

.error-card {
    text-align: center;
    color: var(--color-white);
}

.error-code {
    font-family: var(--font-heading);
    font-size: 6rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: var(--space-md);
}

.error-card h1 {
    color: var(--color-white);
    margin-bottom: var(--space-md);
}

.error-card p {
    color: rgba(255,255,255,0.8);
    margin-bottom: var(--space-xl);
}

.cookie-popup {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    padding: var(--space-md);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
    z-index: 1000;
    transform: translateY(100%);
    transition: transform var(--transition-base);
}

.cookie-popup.active {
    transform: translateY(0);
}

.cookie-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    align-items: center;
    text-align: center;
}

.cookie-content p {
    font-size: 0.8125rem;
    color: var(--color-text);
}

.cookie-content a {
    color: var(--color-accent);
}

.cookie-btns {
    display: flex;
    gap: var(--space-sm);
}

.about-grid {
    display: grid;
    gap: var(--space-xl);
}

.about-text h2 {
    margin-bottom: var(--space-md);
}

.about-text p {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.curriculum-list {
    display: grid;
    gap: var(--space-md);
}

.curriculum-item {
    background: var(--color-white);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    box-shadow: var(--shadow-sm);
}

.curriculum-num {
    width: 2rem;
    height: 2rem;
    background: linear-gradient(135deg, var(--color-accent), var(--color-accent-alt));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    flex-shrink: 0;
}

.curriculum-content h3 {
    font-size: 0.9375rem;
    margin-bottom: var(--space-xs);
}

.curriculum-content p {
    font-size: 0.8125rem;
    color: var(--color-text-light);
}

@media (min-width: 480px) {
    h1 { font-size: 2.5rem; }
    .hero h1 { font-size: 2.75rem; }
    .stats-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 640px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .courses-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-wrapper { grid-template-columns: 1fr 1.5fr; }
    .about-grid { grid-template-columns: 1fr 1fr; align-items: center; }
    .cookie-content { flex-direction: row; text-align: left; }
}

@media (min-width: 768px) {
    .nav-desktop { display: block; }
    .burger { display: none; }
    h1 { font-size: 3rem; }
    .hero h1 { font-size: 3.25rem; }
    .section { padding: var(--space-3xl) 0; }
}

@media (min-width: 1024px) {
    .features-grid { grid-template-columns: repeat(4, 1fr); }
    .courses-grid { grid-template-columns: repeat(3, 1fr); }
    .curriculum-list { grid-template-columns: repeat(2, 1fr); }
}