/* ============================================
   NailStudio - Modern Nail Art Website
   Stylesheet
   ============================================ */

/* CSS Variables */
:root {
    --primary: #FF2E93;
    --primary-dark: #DB1E76;
    --primary-light: #FF6BAE;
    --secondary: #A855F7;
    --accent: #f59e0b;
    --dark: #1a1a2e;
    --dark-light: #16213e;
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    --font-display: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 40px rgba(233, 30, 140, 0.3);
    
    --radius-sm: 6px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;

    /* Dark/neon-glam theme tokens. --white and --gray-900/800 are left as
       they were (still used for e.g. the already-dark footer background
       and white-on-brand-color button text) — these new tokens carry the
       page background / card surfaces / body text instead. */
    --bg-page: #0B0A11;
    --surface: #17141F;
    --text-primary: #F5EFF7;
    --text-secondary: #C3B2D1;
    --border-dark: #362D47;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-primary);
    background:
        radial-gradient(ellipse 800px 500px at 15% 0%, rgba(255, 46, 147, 0.12), transparent 60%),
        radial-gradient(ellipse 900px 600px at 85% 15%, rgba(168, 85, 247, 0.14), transparent 60%),
        var(--bg-page);
    background-attachment: fixed;
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(11, 10, 17, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-dark);
    transition: var(--transition);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.logo i {
    font-size: 1.75rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 4px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-user-name {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    color: var(--primary);
    font-size: 0.9375rem;
    white-space: nowrap;
}

/* ===== Fullscreen Lightbox (shared: studio results, trending, library) ===== */
#result-lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(11, 10, 17, 0.92);
    backdrop-filter: blur(12px);
    align-items: center;
    justify-content: center;
    cursor: zoom-out;
}

#result-lightbox.open { display: flex; }

#result-lightbox img {
    max-width: 92vw;
    max-height: 90vh;
    border-radius: 16px;
    box-shadow: 0 0 60px rgba(255, 46, 147, 0.25), 0 24px 80px rgba(0, 0, 0, 0.6);
}

#result-lightbox button {
    position: absolute;
    top: 20px;
    right: 24px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    font-size: 22px;
    cursor: pointer;
}

/* ===== Scroll to Top Button ===== */
.scroll-top-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(233, 30, 140, 0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: opacity 200ms ease, transform 200ms ease, visibility 200ms;
    z-index: 999;
}

.scroll-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    box-shadow: 0 8px 24px rgba(233, 30, 140, 0.45);
    transform: translateY(-2px);
}

.scroll-top-btn:active {
    transform: scale(0.95);
}

.scroll-top-btn svg {
    width: 22px;
    height: 22px;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    padding: 8px;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    box-shadow: 0 4px 14px rgba(233, 30, 140, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(233, 30, 140, 0.5);
}

.btn-secondary {
    background: var(--surface);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--gray-100);
    color: var(--text-primary);
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--surface);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.btn-icon:hover {
    background: var(--primary);
    color: var(--white);
    transform: scale(1.1);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(255, 46, 147, 0.10) 0%, rgba(168, 85, 247, 0.10) 50%, rgba(11, 10, 17, 0) 100%);
}

/* Subtle leopard-print texture (CSS spots, no image asset) */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: 0.12;
    background-image:
        radial-gradient(ellipse 42px 30px at 10% 20%, #000 40%, transparent 42%),
        radial-gradient(ellipse 30px 22px at 32% 62%, #000 40%, transparent 42%),
        radial-gradient(ellipse 36px 26px at 58% 12%, #000 40%, transparent 42%),
        radial-gradient(ellipse 32px 24px at 78% 55%, #000 40%, transparent 42%),
        radial-gradient(ellipse 26px 20px at 92% 82%, #000 40%, transparent 42%),
        radial-gradient(ellipse 34px 24px at 14% 88%, #000 40%, transparent 42%);
    background-size: 240px 200px;
    background-repeat: repeat;
    pointer-events: none;
}

.hero-script-tag {
    font-family: 'Great Vibes', cursive;
    font-size: 2.2rem;
    color: var(--primary);
    text-shadow: 0 0 18px rgba(255, 46, 147, 0.6);
    display: block;
    margin-bottom: 4px;
}

.hero-bg-shapes {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: var(--radius-full);
    filter: blur(80px);
    opacity: 0.5;
}

.shape-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    top: -10%;
    right: -5%;
    animation: float 8s ease-in-out infinite;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--secondary), #c4b5fd);
    bottom: -10%;
    left: -5%;
    animation: float 10s ease-in-out infinite reverse;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #fde68a, var(--accent));
    top: 40%;
    left: 30%;
    animation: float 12s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(233, 30, 140, 0.1);
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 24px;
}

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

.hero h1 {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    color: var(--text-primary);
    margin-bottom: 24px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: 32px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Hero Visual */
.hero-visual {
    position: relative;
}

.nail-showcase {
    position: relative;
    height: 500px;
}

.nail-card {
    position: absolute;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transition: var(--transition-slow);
}

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

.nail-card-1 {
    width: 220px;
    height: 300px;
    top: 0;
    left: 0;
    z-index: 3;
    transform: rotate(-5deg);
}

.nail-card-2 {
    width: 200px;
    height: 280px;
    top: 60px;
    left: 180px;
    z-index: 2;
    transform: rotate(3deg);
}

.nail-card-3 {
    width: 180px;
    height: 260px;
    top: 140px;
    left: 80px;
    z-index: 1;
    transform: rotate(-2deg);
}

.nail-card:hover {
    transform: rotate(0deg) scale(1.05);
    z-index: 10;
}

.nail-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    color: var(--white);
}

.trend-badge {
    display: inline-block;
    padding: 4px 10px;
    background: var(--primary);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 8px;
}

.trend-badge.hot {
    background: var(--accent);
}

.trend-badge.new {
    background: var(--success);
}

.nail-card-overlay h3 {
    font-family: var(--font-display);
    font-size: 1.125rem;
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, rgba(233, 30, 140, 0.1), rgba(139, 92, 246, 0.1));
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

/* ============================================
   Features Section
   ============================================ */
.features {
    padding: 100px 0;
    background: transparent;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    padding: 40px 32px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-dark);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

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

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 20px;
}

.feature-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9375rem;
}

.feature-link:hover {
    gap: 10px;
}

/* ============================================
   NailMatch Preview Section
   ============================================ */
.nailmatch-preview {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    color: var(--white);
}

.nailmatch-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.nailmatch-text .section-tag {
    background: rgba(233, 30, 140, 0.2);
    color: var(--primary-light);
}

.nailmatch-text h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    margin: 16px 0 20px;
}

.nailmatch-text p {
    color: var(--gray-400);
    font-size: 1.0625rem;
    margin-bottom: 32px;
}

.nailmatch-features {
    margin-bottom: 32px;
}

.nailmatch-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--gray-300);
}

.nailmatch-features i {
    color: var(--success);
    font-size: 1.25rem;
}

/* Quiz Preview Card */
.quiz-preview-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-xl);
    padding: 32px;
    backdrop-filter: blur(10px);
}

.quiz-step {
    margin-bottom: 24px;
}

.step-number {
    display: inline-block;
    padding: 4px 12px;
    background: var(--primary);
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
}

.quiz-step h4 {
    font-size: 1.125rem;
    margin-bottom: 20px;
}

.skin-tone-options {
    display: flex;
    gap: 12px;
}

.skin-tone {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
    border: 3px solid transparent;
}

.skin-tone:hover {
    transform: scale(1.15);
    border-color: var(--white);
}

.quiz-result-preview {
    display: flex;
    gap: 20px;
    align-items: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
}

.quiz-result-preview img {
    width: 100px;
    height: 120px;
    object-fit: cover;
    border-radius: var(--radius);
}

.match-percent {
    display: inline-block;
    padding: 4px 10px;
    background: var(--success);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    margin-bottom: 8px;
}

.result-info h4 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    margin-bottom: 4px;
}

.result-info p {
    font-size: 0.875rem;
    color: var(--gray-400);
    margin: 0;
}

/* ============================================
   Trending Section
   ============================================ */
.trending {
    padding: 100px 0;
    background: transparent;
}

.trending-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    background: var(--surface);
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-dark);
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.trending-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.trending-card {
    background: var(--surface);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.trending-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.trending-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.trending-card:hover .trending-image img {
    transform: scale(1.05);
}

.trending-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    opacity: 0;
    transition: var(--transition);
}

.trending-card:hover .trending-overlay {
    opacity: 1;
}

.trending-info {
    padding: 20px;
}

.trending-info h4 {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.trending-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
}

.trending-meta span {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

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

.shop-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 600;
}

.shop-link:hover {
    gap: 10px;
}

.text-center {
    text-align: center;
}

/* ============================================
   Challenge Section
   ============================================ */
.challenge {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    text-align: center;
}

.challenge-content {
    max-width: 800px;
    margin: 0 auto;
}

.challenge-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    font-weight: 600;
    margin-bottom: 24px;
}

.challenge h2 {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.challenge > .container > .challenge-content > p {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: 40px;
}

.challenge-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 40px;
}

.challenge-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.challenge-number {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
}

.challenge-entries {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
}

.entry-thumb {
    position: relative;
    width: 80px;
    height: 80px;
    border-radius: var(--radius);
    overflow: hidden;
    border: 3px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition);
}

.entry-thumb:hover {
    transform: scale(1.1);
    border-color: var(--white);
}

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

.entry-votes {
    position: absolute;
    bottom: 4px;
    left: 4px;
    right: 4px;
    padding: 2px 6px;
    background: rgba(0, 0, 0, 0.6);
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.entry-more {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    font-weight: 700;
    font-size: 0.875rem;
}

.challenge-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.challenge-actions .btn-ghost {
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.challenge-actions .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ============================================
   PDF Shop Section
   ============================================ */
.pdf-shop {
    padding: 100px 0;
    background: var(--surface);
}

.pdf-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.pdf-card {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    position: relative;
}

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

.pdf-card.featured {
    border: 2px solid var(--primary);
    transform: scale(1.02);
}

.pdf-card.featured:hover {
    transform: scale(1.02) translateY(-4px);
}

.pdf-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 6px 14px;
    background: var(--accent);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    z-index: 2;
}

.pdf-cover {
    padding: 32px;
}

.pdf-cover-design {
    aspect-ratio: 3/4;
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    box-shadow: var(--shadow-lg);
}

.pdf-cover-design i {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.9;
}

.pdf-cover-design h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.3;
}

.pdf-info {
    padding: 0 32px 32px;
}

.pdf-info h4 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.pdf-info p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: 16px;
}

.pdf-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.pdf-meta span {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.pdf-meta i {
    color: var(--primary);
}

.pdf-price {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.price-old {
    font-size: 1rem;
    color: var(--gray-400);
    text-decoration: line-through;
}

.price-new {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

/* ============================================
   Newsletter Section
   ============================================ */
.newsletter {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(255, 46, 147, 0.08) 0%, rgba(168, 85, 247, 0.10) 100%);
}

.newsletter-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.newsletter-text h2 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.newsletter-text p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.newsletter-benefits li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.newsletter-benefits i {
    color: var(--success);
}

.newsletter-form {
    background: var(--surface);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.form-group {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.form-group input {
    flex: 1;
    padding: 14px 18px;
    background: var(--bg-page);
    color: var(--text-primary);
    border: 2px solid var(--border-dark);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input::placeholder {
    color: var(--gray-500);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.8125rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.checkbox-label input {
    margin-top: 2px;
}

.form-note {
    margin-top: 16px;
    font-size: 0.8125rem;
    color: var(--gray-400);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: 80px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--gray-800);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.footer-links h4 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-links li {
    margin-bottom: 12px;
}

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

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

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}

.footer-bottom i {
    color: var(--primary);
}

/* ============================================
   Modal
   ============================================ */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--surface);
    border-radius: var(--radius-xl);
    padding: 40px;
    max-width: 480px;
    width: 90%;
    position: relative;
    transform: scale(0.9);
    transition: var(--transition);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--text-secondary);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text {
        order: 2;
    }
    
    .hero-visual {
        order: 1;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .nail-showcase {
        height: 400px;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .nailmatch-content {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }
    
    .nailmatch-features li {
        justify-content: center;
    }
    
    .trending-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pdf-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .newsletter-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .newsletter-benefits li {
        justify-content: center;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Nav has 5 links + auth buttons now — collapses to burger below 992px, not 768 */
@media (max-width: 991px) {
    .nav-links,
    .nav-actions {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav-container {
        flex-wrap: wrap;
        height: auto;
        min-height: 72px;
        padding-top: 12px;
        padding-bottom: 12px;
    }

    .nav-links.mobile-active {
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 100%;
        order: 3;
        gap: 16px;
        padding: 16px 0 8px;
        margin-top: 8px;
        border-top: 1px solid var(--border-dark);
    }

    .nav-actions.mobile-active {
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 100%;
        order: 4;
        gap: 10px;
        padding: 8px 0 12px;
    }

    .nav-actions.mobile-active .btn {
        width: 100%;
        max-width: 280px;
    }
}

@media (max-width: 768px) {

    .hero {
        padding: 100px 0 60px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .nail-card-1,
    .nail-card-2,
    .nail-card-3 {
        width: 160px;
        height: 220px;
    }
    
    .nail-card-2 {
        left: 140px;
    }
    
    .nail-card-3 {
        left: 60px;
        top: 100px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .trending-grid {
        grid-template-columns: 1fr;
    }
    
    .pdf-grid {
        grid-template-columns: 1fr;
    }
    
    .pdf-card.featured {
        transform: none;
    }
    
    .challenge-stats {
        gap: 30px;
    }
    
    .challenge h2 {
        font-size: 2rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .form-group {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
    
    .challenge-actions {
        flex-direction: column;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* ============================================
   Accordion Footer (dropdown style)
   ============================================ */
.footer-accordion {
    /* Magenta wash deepening toward a hot-pink bottom edge (salon-flyer look) */
    background:
        linear-gradient(180deg, #0a0a0a 0%, #1c0714 45%, #3a0e28 85%, #571238 100%);
    color: #d4d4d4;
    padding: 24px 0 40px;
    border-bottom: 4px solid transparent;
    border-image: linear-gradient(90deg, var(--primary), var(--secondary)) 1;
}

.footer-section {
    border-bottom: 1px solid rgba(255, 46, 147, 0.18);
}

.footer-section:first-child {
    border-top: 1px solid rgba(255, 46, 147, 0.18);
}

.footer-section-toggle {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 4px;
    color: #f5f5f5;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    font-family: inherit;
    text-align: left;
    transition: color 0.2s ease;
}

.footer-section-toggle:hover {
    color: var(--primary-light);
}

.footer-section-toggle i {
    font-size: 0.9rem;
    color: var(--primary-light);
    transition: transform 0.3s ease;
}

.footer-section.open .footer-section-toggle i {
    transform: rotate(45deg); /* plus becomes an x */
}

.footer-section-list {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    padding: 0 4px;
}

.footer-section-list li {
    margin-bottom: 14px;
}

.footer-section-list a {
    color: #a3a3a3;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.footer-section-list a:hover {
    color: var(--primary-light);
}

.footer-center {
    text-align: center;
    padding-top: 56px;
}

.footer-brand-name {
    display: inline-block;
    font-family: 'Great Vibes', var(--font-display), cursive;
    font-size: 3.2rem;
    font-weight: 400;
    color: #ffffff;
    text-shadow:
        0 0 8px rgba(255, 46, 147, 0.9),
        0 0 24px rgba(255, 46, 147, 0.6);
    margin-bottom: 28px;
}

.footer-center .social-links {
    justify-content: center;
    gap: 16px;
    margin-bottom: 28px;
}

/* Solid pink circles, salon-flyer style */
.footer-center .social-links a {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-full);
    font-size: 1.1rem;
    color: #fff;
    box-shadow: 0 4px 14px rgba(255, 46, 147, 0.35);
}

.footer-center .social-links a:hover {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    filter: brightness(1.15);
    transform: translateY(-2px);
}

.footer-copy {
    font-size: 0.85rem;
    color: #b78aa4;
}