@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Syne:wght@400;500;600;700;800&display=swap');

:root {
    --navy: #0B132B;
    --cyan: #00A8E8;
    --light-gray: #E5E5E5;
    --charcoal: #1C1C1C;
    --purple: #9B5DE5;

    --gradient-primary: linear-gradient(135deg, var(--navy) 0%, #162959 100%);
    --gradient-accent: linear-gradient(135deg, var(--cyan) 0%, var(--purple) 100%);

    --font-primary: 'Space Grotesk', sans-serif;
    --font-secondary: 'Syne', sans-serif;

    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;

    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 2rem;

    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.1);

    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
    font-family: var(--font-primary);
    background: var(--gradient-primary);
    color: var(--light-gray);
    line-height: 1.5;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: var(--space-md);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-md);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    margin-bottom: var(--space-sm);
}

p {
    margin-bottom: var(--space-sm);
}

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

a:hover {
    color: var(--purple);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-sm);
}

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

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

.button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--cyan);
    color: var(--navy);
    font-weight: 700;
    text-transform: uppercase;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--purple);
    transition: transform var(--transition-medium);
    z-index: -1;
}

.button:hover::before {
    transform: translateX(100%);
}

.button:hover {
    color: white;
}

.section {
    padding: var(--space-lg) 0;
    position: relative;
    overflow: hidden;
}

.section-dark {
    background: rgba(0, 0, 0, 0.2);
}

.section-light {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.header {
    position: absolute;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    padding: var(--space-sm) 0;
    transition: transform var(--transition-medium);
}

.header-hidden {
    transform: translateY(-100%);
}

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

.logo {
    font-family: var(--font-secondary);
    font-size: 1rem;
    font-weight: 800;
    color: var(--light-gray);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav {
    display: flex;
    gap: var(--space-md);
}

.nav-link {
    color: var(--light-gray);
    position: relative;
}

.nav-link li{
    list-style: none;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--cyan);
    transition: width var(--transition-medium);
}

.nav-link:hover::after {
    width: 100%;
}

.burger {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 2000;
}

.burger div {
    width: 30px;
    height: 2px;
    background-color: var(--light-gray);
    transition: all var(--transition-medium);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: url("../gallery/hero-bg.png");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-content {
    position: relative;
    z-index: 10;
    background: rgb(11, 19, 43, 0.5);
    padding: var(--space-lg);
}

.hero-bg {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1;
    overflow: hidden;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    background-color: var(--cyan);
    border-radius: 50%;
    opacity: 0.2;
    animation: float 8s infinite ease-in-out;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    25% {
        transform: translateY(-20px) translateX(10px);
    }
    50% {
        transform: translateY(0) translateX(20px);
    }
    75% {
        transform: translateY(20px) translateX(10px);
    }
}

.fractal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--space-md);
}

.card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
}

.card-highlight {
    border: 1px solid rgba(155, 93, 229, 0.3);
}

.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(0, 168, 232, 0.2);
    color: var(--cyan);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

.course-level {
    display: inline-flex;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.level-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--cyan);
    margin-right: 4px;
}

.level-beginner .level-dot:nth-child(1) {
    background: var(--cyan);
}

.level-beginner .level-dot:nth-child(2),
.level-beginner .level-dot:nth-child(3) {
    background: rgba(255, 255, 255, 0.2);
}

.level-intermediate .level-dot:nth-child(1),
.level-intermediate .level-dot:nth-child(2) {
    background: var(--cyan);
}

.level-intermediate .level-dot:nth-child(3) {
    background: rgba(255, 255, 255, 0.2);
}

.level-advanced .level-dot {
    background: var(--cyan);
}

.instructor {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.instructor-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: var(--space-sm);
    border: 3px solid var(--cyan);
    transition: transform var(--transition-medium);
}

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

.contact-form {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.contact-form::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    z-index: -1;
    background: radial-gradient(circle, rgba(155, 93, 229, 0.1) 0%, rgba(11, 19, 43, 0) 70%);
    transform: rotate(45deg);
}

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

.form-label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: 500;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--light-gray);
    font-family: var(--font-primary);
    transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--cyan);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

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

input[type="checkbox"] {
    appearance: none;
    width: 18px;
    height: 18px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    position: relative;
    cursor: pointer;
}

input[type="checkbox"]:checked::before {
    content: '';
    position: absolute;
    top: 4px;
    left: 4px;
    width: 8px;
    height: 8px;
    background: var(--cyan);
    border-radius: 1px;
}

.footer {
    padding: var(--space-md) 0;
    background: rgba(0, 0, 0, 0.3);
}

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

.footer-nav {
    display: flex;
    gap: var(--space-sm);
}

.footer-copyright {
    font-size: 0.875rem;
    opacity: 0.7;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(11, 19, 43, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-medium);
}

.modal-open {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--navy);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    max-width: 500px;
    position: relative;
    transform: translateY(50px);
    transition: transform var(--transition-medium);
    border: 1px solid rgba(0, 168, 232, 0.3);
}

.modal-open .modal-content {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    background: none;
    border: none;
    color: var(--light-gray);
    font-size: 1.5rem;
    cursor: pointer;
}

.not-found {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.not-found h1 {
    font-size: 8rem;
    margin-bottom: var(--space-sm);
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.not-found p {
    margin-bottom: var(--space-md);
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--navy);
    padding: var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 999;
    transform: translateY(100%);
    transition: transform var(--transition-medium);
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.2);
}

.cookie-banner.show {
    transform: translateY(0);
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
}

.legal-content h2 {
    margin-top: var(--space-lg);
}

.legal-content ul, .legal-content ol {
    margin-left: var(--space-md);
    margin-bottom: var(--space-md);
}

.legal-content li {
    margin-bottom: var(--space-xs);
}

.home-button {
    display: inline-flex;
    align-items: center;
    margin-bottom: var(--space-md);
}

@media (max-width: 992px) {
    .flex {
        flex-wrap: wrap;
    }

    .instructor {
        width: calc(50% - var(--space-md));
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 80%;
        max-width: 300px;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        background: var(--navy);
        transform: translateY(-100%);
        transition: transform var(--transition-medium);
        z-index: 1500;
    }

    .nav.open {
        transform: translateY(0);
    }

    .burger {
        display: flex;
    }

    .burger.open div:nth-child(1) {
        transform: rotate(45deg) translate(5px, 6px);
    }

    .burger.open div:nth-child(2) {
        opacity: 0;
    }

    .burger.open div:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -6px);
    }

    .footer-content {
        flex-direction: column;
        gap: var(--space-md);
    }

    .instructor {
        width: 100%;
    }

    .logo{
        font-size: 1.2rem;
    }
}

@media (max-width: 576px) {
    .logo{
        font-size: 0.7rem;
    }

    .card{
        flex-direction: column;
    }

    :root {
        --space-md: 1.5rem;
        --space-lg: 3rem;
        --space-xl: 6rem;
    }

    .fractal-grid {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: var(--space-md);
    }

    .not-found h1 {
        font-size: 5rem;
    }
}

@media (min-width: 769px) {
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }

    .contact-grid {
        grid-template-columns: 3fr 2fr;
    }
}

.fractal-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.4;
}

.fractal-line {
    position: absolute;
    width: 1px;
    height: 100%;
    background: linear-gradient(to bottom, transparent, var(--cyan), transparent);
    opacity: 0.2;
}

.thank-you {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
    text-align: center;
}

.pulse {
    animation: pulse 3s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

.fade-in {
    animation: fadeIn 1s ease-out forwards;
    opacity: 0;
}

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

.fade-in-delay-1 {
    animation-delay: 0.2s;
}

.fade-in-delay-2 {
    animation-delay: 0.4s;
}

.fade-in-delay-3 {
    animation-delay: 0.6s;
}

.rotate-bg {
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: radial-gradient(
            circle at center,
            rgba(155, 93, 229, 0.05) 0%,
            rgba(0, 168, 232, 0.05) 25%,
            rgba(11, 19, 43, 0) 70%
    );
    animation: rotate 60s linear infinite;
    z-index: -1;
}

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

.nav-open{
    overflow: hidden;
}

.responsive-table{
    overflow-x: auto;
}