/* =========================================
   SINE | Multimedia Artist Design System
   ========================================= */

:root {
    /* Color Palette */
    --bg-dark: #fafafc;
    --bg-dark-secondary: #ffffff;
    --text-primary: #2a2b38;
    --text-secondary: #65677e;

    /* Gradients / Accents */
    --neon-cyan: #00e1fc;
    /* softer cyan */
    --neon-purple: #e0007e;
    /* Magenta */
    --neon-pink: #ff5e62;
    /* Soft Coral/Orange */
    --gradient-primary: linear-gradient(135deg, var(--neon-purple), var(--neon-pink));
    --gradient-warm: linear-gradient(135deg, var(--neon-pink), #ff9966);

    /* Layout */
    --max-width: 1400px;
    --section-padding: 8rem 5%;

    /* Effects */
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(0, 0, 0, 0.05);
    --glass-blur: blur(20px);
    --shadow-glow: 0 10px 40px rgba(224, 0, 126, 0.15);
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);

    /* Typography */
    --font-sans: 'Outfit', sans-serif;
    --font-serif: 'Playfair Display', serif;
}

/* =========================================
   Reset & Base Styles
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

::selection {
    background-color: var(--neon-purple);
    color: #fff;
}

/* Typography Utility */
h1,
h2,
h3,
h4 {
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
}

.font-serif {
    font-family: var(--font-serif);
}

.italic {
    font-style: italic;
}

.text-glow {
    text-shadow: 0 4px 15px rgba(224, 0, 126, 0.2);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-smooth);
}

/* =========================================
   Components (Nav, Buttons, Glassmorphism)
   ========================================= */

/* Glass Navigation */
.glass-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
    padding: 1rem 5%;
    transition: var(--transition-smooth);
}

.glass-nav.scrolled {
    background: rgba(7, 7, 10, 0.85);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 2px;
}

.logo-text-varna {
    color: #000000;
    transition: var(--transition-smooth);
}

.logo-text-lab {
    color: var(--neon-purple);
    transition: var(--transition-smooth);
}

.glass-nav.scrolled .logo-text-varna,
.glass-nav.scrolled .logo-text-lab {
    color: #ffffff;
}

.logo span {
    color: var(--neon-cyan);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a:not(.btn-primary-small) {
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    color: var(--text-primary);
    transition: var(--transition-smooth);
}

.glass-nav.scrolled .nav-links a:not(.btn-primary-small) {
    color: #ffffff;
}

.glass-nav.scrolled .menu-toggle {
    color: #ffffff;
}

.lang-toggle {
    color: var(--text-secondary);
    transition: var(--transition-smooth);
}

.glass-nav.scrolled .lang-toggle {
    color: #ffffff;
}

.nav-links a:not(.btn-primary-small)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-smooth);
}

.nav-links a:not(.btn-primary-small):hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
}

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-primary-small {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary-small {
    padding: 0.6rem 1.5rem;
    font-size: 0.8rem;
}

.btn-primary,
.btn-primary-small {
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    box-shadow: 0 10px 20px -10px rgba(224, 0, 126, 0.6);
}

.btn-primary::before,
.btn-primary-small::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--neon-purple), var(--neon-cyan));
    z-index: -1;
    transition: var(--transition-smooth);
    opacity: 0;
}

.btn-primary:hover::before,
.btn-primary-small:hover::before {
    opacity: 1;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 25px -10px rgba(224, 0, 126, 0.8);
}

.btn-secondary {
    background: transparent;
    color: var(--neon-purple);
    border: 2px solid var(--neon-purple);
}

.btn-secondary:hover {
    background: rgba(224, 0, 126, 0.05);
    transform: translateY(-3px);
}

/* Glass Card */
.glass-card {
    background: #ffffff;
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 0 15px 35px -12px rgba(0, 0, 0, 0.08);
}

/* =========================================
   Layout Sections
   ========================================= */

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--section-padding);
    padding-top: 120px;
    overflow: hidden;
}

.hero-bg-fx {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

/* Animated animated background orbs */
.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s infinite alternate ease-in-out;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: rgba(224, 0, 126, 0.3);
    top: -10%;
    right: -10%;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: rgba(0, 242, 254, 0.2);
    bottom: -20%;
    left: -10%;
    animation-delay: -5s;
}

.noise-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)"/%3E%3C/svg%3E');
    opacity: 0.04;
    mix-blend-mode: overlay;
    pointer-events: none;
}

@keyframes float {
    0% {
        transform: translate(0, 0) scale(1);
    }

    50% {
        transform: translate(-30px, 50px) scale(1.1);
    }

    100% {
        transform: translate(40px, -30px) scale(0.9);
    }
}

.hero-content {
    max-width: 900px;
    text-align: center;
    position: relative;
    z-index: 10;
}

.tagline {
    font-family: var(--font-sans);
    font-weight: 800;
    text-transform: uppercase;
    font-size: 1.2rem;
    color: var(--neon-purple);
    margin-bottom: 1rem;
    letter-spacing: 3px;
}

.section-eyebrow {
    display: block;
    font-family: var(--font-sans);
    font-weight: 800;
    text-transform: uppercase;
    font-size: 0.9rem;
    color: var(--neon-purple);
    letter-spacing: 2px;
    margin-bottom: 0.75rem;
}


.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 1.5rem auto 3rem;
}

.hero-ctas {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    animation: bounce 2s infinite;
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0) translateX(-50%);
    }

    40% {
        transform: translateY(-10px) translateX(-50%);
    }

    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

/* =========================================
   About Section
   ========================================= */
.about-section {
    padding: var(--section-padding);
    background: var(--bg-dark-secondary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    position: relative;
}

.about-content {
    flex: 1;
    z-index: 2;
}

.about-content h2 {
    margin-bottom: 2rem;
}

.about-content p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.about-visual {
    flex: 1;
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-glow);
    z-index: 2;
}

.about-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.about-decor {
    position: absolute;
    bottom: -20px;
    left: -20px;
    width: 150px;
    height: 150px;
    border: 2px dashed var(--neon-purple);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
    z-index: 0;
}

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@media (max-width: 900px) {
    .about-section {
        flex-direction: column;
    }
}

/* =========================================
   Team Section
   ========================================= */
.team-section {
    padding: var(--section-padding);
    background: var(--bg-dark);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

@media (min-width: 1000px) {
    .team-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.team-member {
    text-align: center;
    width: 100%;
}

.team-img-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 24px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    border: 3px solid rgba(224, 0, 126, 0.1);
    background: #e6e6ef;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.team-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: opacity 0.3s ease;
}

.team-img-wrap:hover {
    transform: scale(1.05) translateY(-5px);
    border-color: var(--neon-purple);
    box-shadow: 0 15px 25px rgba(224, 0, 126, 0.2);
}

.team-img-wrap:hover img {
    opacity: 0.15;
}

.team-bio {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    text-align: center;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.4;
    opacity: 0;
    transition: opacity 0.3s ease;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(4px);
}

.team-img-wrap:hover .team-bio {
    opacity: 1;
}

.team-member h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 0.2rem;
}

/* =========================================
   Portfolio Section
   ========================================= */
.portfolio-section {
    padding: var(--section-padding);
    max-width: var(--max-width);
    margin: 0 auto;
}

.section-header {
    margin-bottom: 4rem;
}

.section-header.center {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem auto;
}

.filters {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    padding: 0.5rem 1.5rem;
    border-radius: 30px;
    cursor: pointer;
    font-family: var(--font-sans);
    transition: var(--transition-smooth);
}

.filter-btn:hover,
.filter-btn.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.3);
}

.masonry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    grid-auto-rows: 400px;
    gap: 2rem;
    grid-auto-flow: dense;
}

.portfolio-item.tall {
    grid-row: span 2;
}

.portfolio-item.wide {
    grid-column: span 2;
}

@media (max-width: 900px) {
    .masonry-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        grid-auto-rows: 300px;
    }

    .portfolio-item.wide {
        grid-column: span 1;
    }
}

.portfolio-item {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.6));
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    opacity: 0;
    transition: opacity 0.4s ease;
}

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

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay h3 {
    margin-bottom: 0.2rem;
    transform: translateY(20px);
    transition: transform 0.4s ease;
    color: var(--text-primary);
}

.artist-name {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 600;
    transform: translateY(20px);
    transition: transform 0.4s ease 0.05s;
    margin-bottom: 0.5rem;
}

.portfolio-item:hover .portfolio-overlay h3,
.portfolio-item:hover .portfolio-overlay .artist-name {
    transform: translateY(0);
}

.category-tag {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 800;
    color: var(--neon-purple);
}

/* =========================================
   Courses Section
   ========================================= */
.courses-section {
    padding: var(--section-padding);
    background: var(--bg-dark-secondary);
    position: relative;
}

.course-cards {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.course-card {
    padding: 2.5rem 2rem;
    position: relative;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    border: 2px solid rgba(224, 0, 126, 0.1);
    background: #ffffff;
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(224, 0, 126, 0.15), 0 0 30px rgba(255, 94, 98, 0.1);
    border-color: var(--neon-purple);
}

.course-card.featured {
    border-color: var(--neon-pink);
    background: linear-gradient(145deg, #ffffff, #fff0f5);
}

.badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--gradient-warm);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 5px 15px rgba(240, 47, 194, 0.4);
}

.course-icon {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--neon-cyan);
}

.featured .course-icon {
    color: var(--neon-pink);
}

.course-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.course-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 2rem;
    flex-grow: 1;
}

.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.price {
    font-size: 1.5rem;
    font-weight: 800;
    font-family: var(--font-serif);
    color: #fff;
}

.buy-btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.8rem;
}

/* =========================================
   Contact Section
   ========================================= */
.contact-section {
    padding: var(--section-padding);
    max-width: var(--max-width);
    margin: 0 auto;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    padding: 4rem;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.socials {
    display: flex;
    gap: 1.5rem;
}

.socials a {
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: 50%;
    display: inline-flex;
    border: 1px solid var(--glass-border);
}

.socials a:hover {
    color: var(--neon-cyan);
    border-color: var(--neon-cyan);
    background: rgba(0, 242, 254, 0.1);
    transform: translateY(-5px);
}

/* Floating Label Inputs */
.form-group {
    position: relative;
    margin-bottom: 2rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1rem 0;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
}

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

.form-group label {
    position: absolute;
    top: 1rem;
    left: 0;
    color: var(--text-secondary);
    pointer-events: none;
    transition: var(--transition-smooth);
}

.form-group input:focus~label,
.form-group input:not(:placeholder-shown)~label,
.form-group textarea:focus~label,
.form-group textarea:not(:placeholder-shown)~label {
    top: -0.5rem;
    font-size: 0.8rem;
    color: var(--neon-cyan);
}

.w-full {
    width: 100%;
}

/* =========================================
   Footer
   ========================================= */
footer {
    padding: 2rem 5%;
    border-top: 1px solid var(--glass-border);
    background: var(--bg-dark);
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.made-with {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 600;
}

/* =========================================
   Responsive
   ========================================= */
@media (max-width: 900px) {
    .contact-container {
        grid-template-columns: 1fr;
        padding: 2rem;
    }

    .nav-links {
        display: none;
        /* Mobile menu toggled via JS */
    }

    .nav-links a:not(.btn-primary-small),
    .nav-links .lang-toggle {
        color: #ffffff !important;
    }

    .menu-toggle {
        display: block;
    }
}

@media (max-width: 600px) {
    .hero-ctas {
        flex-direction: column;
    }
}

/* =========================================
   Organic Cinematic Mouse Trail
   ========================================= */
.mouse-aura {
    position: fixed;
    top: 0;
    left: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.12) 0%, rgba(235, 10, 203, 0.06) 40%, rgba(0, 0, 0, 0) 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9997;
    mix-blend-mode: screen;
    will-change: transform;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.mouse-dot {
    position: fixed;
    top: 0;
    left: 0;
    width: 6px;
    height: 6px;
    background: #fff;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    box-shadow: 0 0 10px 2px var(--neon-cyan), 0 0 20px 5px var(--neon-cyan);
    will-change: transform;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.mouse-trail {
    position: fixed;
    top: 0;
    left: 0;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    background: var(--neon-purple);
    box-shadow: 0 0 15px 2px var(--neon-purple);
    mix-blend-mode: screen;
    will-change: transform;
    opacity: 0;
    transition: opacity 0.5s ease;
}