/* ============================================
   STICKERLAB — Design System
   Tone: Acid Neon / Playful / Bold
   ============================================ */

/* CSS Variables */
:root {
    /* Acid Neon Palette */
    --neon-lime: #CCFF00;
    --neon-pink: #FF3CAC;
    --dark-bg: #0D0D0D;
    --dark-secondary: #1A1A2E;
    --light-text: #FFFFFF;
    --muted-text: rgba(255, 255, 255, 0.6);
    
    /* Typography */
    --font-display: 'Clash Display', sans-serif;
    --font-body: 'Chillax', sans-serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-body);
    background: var(--dark-bg);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

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

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem var(--space-md);
    background: rgba(13, 13, 13, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--neon-lime);
}

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

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--muted-text);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--neon-lime);
    transition: width var(--transition-medium);
}

.nav-link:hover {
    color: var(--light-text);
}

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

.nav-cta {
    background: var(--neon-lime);
    color: var(--dark-bg) !important;
    padding: 0.75rem 1.5rem;
    border-radius: 100px;
    font-weight: 600;
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    background: var(--neon-pink);
    color: var(--light-text) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--light-text);
    transition: var(--transition-fast);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8rem var(--space-md) var(--space-xl);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 700px;
    z-index: 10;
}

.hero-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--neon-lime);
    border: 1px solid var(--neon-lime);
    padding: 0.5rem 1rem;
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.2s;
    opacity: 0;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(4rem, 12vw, 10rem);
    font-weight: 700;
    line-height: 0.9;
    letter-spacing: -0.04em;
    margin-bottom: 1.5rem;
}

.hero-line {
    display: block;
    animation: fadeInUp 0.8s ease forwards;
    opacity: 0;
}

.hero-line:nth-child(1) { animation-delay: 0.3s; }
.hero-line:nth-child(2) { animation-delay: 0.4s; }
.hero-line:nth-child(3) { animation-delay: 0.5s; }

.hero-line-accent {
    color: var(--neon-lime);
    position: relative;
}

.hero-line-accent::before {
    content: '';
    position: absolute;
    left: -5%;
    right: -5%;
    bottom: 10%;
    height: 40%;
    background: var(--neon-pink);
    z-index: -1;
    transform: skewX(-10deg);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--muted-text);
    max-width: 500px;
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.6s;
    opacity: 0;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.7s;
    opacity: 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-radius: 100px;
    transition: all var(--transition-medium);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--neon-lime);
    color: var(--dark-bg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(204, 255, 0, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--light-text);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

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

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1rem;
}

/* Hero Visual — Floating Stickers */
.hero-visual {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 400px;
    height: 600px;
    pointer-events: none;
}

.sticker-float {
    position: absolute;
    font-size: 4rem;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.5));
    animation: float 6s ease-in-out infinite;
}

.sticker-1 { top: 10%; left: 20%; animation-delay: 0s; }
.sticker-2 { top: 30%; right: 10%; animation-delay: 1s; }
.sticker-3 { top: 50%; left: 5%; animation-delay: 2s; }
.sticker-4 { top: 60%; right: 25%; animation-delay: 3s; }
.sticker-5 { top: 75%; left: 30%; animation-delay: 4s; }
.sticker-6 { top: 20%; right: 40%; animation-delay: 5s; }

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

/* Hero Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted-text);
    animation: fadeIn 1s ease forwards;
    animation-delay: 1s;
    opacity: 0;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--neon-lime), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ============================================
   MARQUEE SECTION
   ============================================ */
.marquee {
    background: var(--neon-lime);
    padding: 1.5rem 0;
    overflow: hidden;
    border-top: 2px solid var(--dark-bg);
    border-bottom: 2px solid var(--dark-bg);
}

.marquee-track {
    display: flex;
    align-items: center;
    gap: 3rem;
    animation: marquee 20s linear infinite;
    white-space: nowrap;
}

.marquee-item {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark-bg);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.marquee-dot {
    color: var(--dark-bg);
    font-size: 0.5rem;
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ============================================
   SECTIONS COMMON
   ============================================ */
.section-header {
    text-align: center;
    margin-bottom: var(--space-lg);
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--neon-lime);
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.1;
}

/* ============================================
   COLLECTIONS SECTION
   ============================================ */
.collections {
    padding: var(--space-xl) var(--space-md);
}

.collections-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.collection-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    transition: transform var(--transition-medium);
}

.collection-card:hover {
    transform: translateY(-10px);
}

.collection-card.collection-featured {
    grid-column: span 2;
    grid-row: span 2;
}

.collection-image {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.collection-featured .collection-image {
    aspect-ratio: 1;
}

.collection-emoji {
    font-size: 5rem;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
    transition: transform var(--transition-medium);
}

.collection-card:hover .collection-emoji {
    transform: scale(1.2) rotate(-10deg);
}

.collection-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
}

.collection-name {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.collection-count {
    font-size: 0.875rem;
    color: var(--muted-text);
}

/* ============================================
   FEATURES SECTION
   ============================================ */
.features {
    padding: var(--space-lg) var(--space-md);
    background: var(--dark-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    max-width: 1200px;
    margin: 0 auto;
}

.feature-item {
    text-align: center;
    padding: var(--space-md);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-md);
    color: var(--neon-lime);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.feature-desc {
    color: var(--muted-text);
    font-size: 1rem;
    line-height: 1.7;
}

/* ============================================
   CUSTOM SECTION
   ============================================ */
.custom {
    padding: var(--space-xl) var(--space-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.custom-content {
    max-width: 500px;
}

.custom-content .section-title {
    margin-bottom: 1.5rem;
}

.custom-desc {
    font-size: 1.125rem;
    color: var(--muted-text);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.custom-features {
    list-style: none;
    margin-bottom: 2.5rem;
}

.custom-features li {
    padding: 0.75rem 0;
    font-size: 1rem;
    color: var(--light-text);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.custom-features li:first-child {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Custom Visual */
.custom-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.custom-sticker {
    position: absolute;
    padding: 2rem 3rem;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    border-radius: 20px;
    transform: rotate(-5deg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    animation: stickerFloat 4s ease-in-out infinite;
}

.custom-sticker-1 {
    background: var(--neon-lime);
    color: var(--dark-bg);
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.custom-sticker-2 {
    background: var(--neon-pink);
    color: var(--light-text);
    top: 40%;
    right: 10%;
    transform: rotate(8deg);
    animation-delay: 1.3s;
}

.custom-sticker-3 {
    background: var(--light-text);
    color: var(--dark-bg);
    bottom: 20%;
    left: 30%;
    transform: rotate(-3deg);
    animation-delay: 2.6s;
}

@keyframes stickerFloat {
    0%, 100% { transform: translateY(0) rotate(var(--rotation, 0deg)); }
    50% { transform: translateY(-15px) rotate(calc(var(--rotation, 0deg) + 3deg)); }
}

.custom-sticker-1 { --rotation: -5deg; }
.custom-sticker-2 { --rotation: 8deg; }
.custom-sticker-3 { --rotation: -3deg; }

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials {
    padding: var(--space-xl) var(--space-md);
    background: var(--dark-secondary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.testimonial {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all var(--transition-medium);
}

.testimonial:hover {
    border-color: var(--neon-lime);
    transform: translateY(-5px);
}

.testimonial-featured {
    background: linear-gradient(135deg, rgba(204, 255, 0, 0.1), rgba(255, 60, 172, 0.1));
    border-color: rgba(204, 255, 0, 0.3);
}

.testimonial-text {
    font-size: 1.125rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    color: var(--light-text);
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.author-name {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--neon-lime);
}

.author-title {
    font-size: 0.875rem;
    color: var(--muted-text);
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta {
    padding: var(--space-xl) var(--space-md);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-content {
    position: relative;
    z-index: 10;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--neon-lime), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-subtitle {
    font-size: 1.25rem;
    color: var(--muted-text);
    margin-bottom: 2.5rem;
}

.cta-stickers {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.cta-sticker {
    position: absolute;
    font-size: 8rem;
    opacity: 0.1;
    filter: blur(2px);
}

.cta-sticker-1 { top: 10%; left: 10%; animation: slowFloat 8s ease-in-out infinite; }
.cta-sticker-2 { top: 20%; right: 15%; animation: slowFloat 10s ease-in-out infinite reverse; }
.cta-sticker-3 { bottom: 20%; left: 20%; animation: slowFloat 12s ease-in-out infinite; }

@keyframes slowFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(10deg); }
    66% { transform: translate(-20px, 20px) rotate(-5deg); }
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: var(--space-lg) var(--space-md) var(--space-md);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-lg);
    max-width: 1400px;
    margin: 0 auto var(--space-lg);
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--neon-lime);
    display: block;
    margin-bottom: 1rem;
}

.footer-tagline {
    color: var(--muted-text);
    font-size: 1rem;
    max-width: 250px;
}

.footer-heading {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    color: var(--light-text);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--muted-text);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--space-md);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--muted-text);
    font-size: 0.875rem;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    to { opacity: 1; }
}

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .collections-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .collection-card.collection-featured {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .custom {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .custom-content {
        max-width: 600px;
        margin: 0 auto;
    }
    
    .custom-visual {
        order: -1;
        height: 350px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-featured {
        order: -1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 6rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        position: relative;
        right: auto;
        top: auto;
        transform: none;
        width: 100%;
        height: 300px;
        margin-top: 3rem;
    }
    
    .sticker-float {
        font-size: 3rem;
    }
    
    .hero-scroll {
        display: none;
    }
    
    .collections-grid {
        grid-template-columns: 1fr;
    }
    
    .collection-card.collection-featured {
        grid-column: span 1;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-md);
    }
    
    .footer-brand {
        grid-column: span 2;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 3.5rem;
    }
    
    .btn {
        padding: 0.875rem 1.5rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-brand {
        grid-column: span 1;
    }
}