/* ===== CSS VARIABLES & RESET ===== */
:root {
    --primary: #6C63FF;
    --primary-light: #8B85FF;
    --primary-dark: #5248CC;
    --secondary: #00D9FF;
    --secondary-dark: #00B8D9;
    --accent: #FF6B9D;
    --success: #4CAF50;
    --warning: #FFC107;
    --error: #E53935;
    
    --bg-dark: #0a0a0f;
    --bg-darker: #050508;
    --bg-card: rgba(20, 20, 35, 0.8);
    --bg-card-hover: rgba(30, 30, 50, 0.9);
    --bg-glass: rgba(255, 255, 255, 0.03);
    --bg-glass-hover: rgba(255, 255, 255, 0.06);
    
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    
    --border-color: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(108, 99, 255, 0.3);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(108, 99, 255, 0.3);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Outfit', 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-darker);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}

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

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

.highlight {
    color: var(--secondary);
}

/* ===== LANGUAGE SWITCHER ===== */
.lang-switcher {
    position: fixed;
    top: 100px;
    right: 24px;
    z-index: 1000;
    display: flex;
    gap: 8px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    padding: 6px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.lang-btn:hover {
    color: var(--text-primary);
    background: var(--bg-glass-hover);
}

.lang-btn.active {
    background: var(--primary);
    color: white;
}

.lang-btn .flag {
    font-size: 1.1rem;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-fast);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition-fast);
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-normal);
    border: none;
    font-family: var(--font-primary);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 20px rgba(108, 99, 255, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(108, 99, 255, 0.5);
}

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--bg-glass-hover);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3);
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.1rem;
}

/* ===== HERO SECTION ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 24px 80px;
    position: relative;
    overflow: hidden;
}

.hero-bg-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(108, 99, 255, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(108, 99, 255, 0.1) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: gridMove 20s linear infinite;
    opacity: 0.5;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(40px, 40px); }
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 30%, rgba(108, 99, 255, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 70%, rgba(0, 217, 255, 0.1) 0%, transparent 50%);
    animation: float 15s ease-in-out infinite;
}

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

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-badge {
    display: inline-block;
    padding: 10px 20px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
    text-wrap: balance;
}

.hero h1 span {
    display: block;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 40px;
    line-height: 1.7;
    text-wrap: pretty;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: var(--text-muted);
    font-size: 1.2rem;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ===== SECTION STYLES ===== */
section {
    padding: clamp(80px, 10vw, 120px) 0;
    scroll-margin-top: 110px;
}

.section-header {
    text-align: center;
    max-width: 760px;
    margin: 0 auto clamp(40px, 6vw, 64px);
}

.section-badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(108, 99, 255, 0.1);
    border: 1px solid rgba(108, 99, 255, 0.3);
    border-radius: var(--radius-xl);
    font-size: 0.85rem;
    color: var(--primary-light);
    margin-bottom: 16px;
    font-weight: 500;
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    text-wrap: balance;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    text-wrap: pretty;
}

/* ===== GENERATOR SECTION ===== */
.generator {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

.generator-wrapper {
    display: grid;
    grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
    gap: 40px;
    align-items: stretch;
}

.generator-controls {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    padding: 32px;
    backdrop-filter: blur(20px);
    position: relative;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    height: 100%;
}

.generator-controls::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(120% 120% at 0% 0%, rgba(108, 99, 255, 0.18) 0%, transparent 45%);
    pointer-events: none;
}

.control-group {
    margin-bottom: 28px;
}

.control-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
    letter-spacing: 0.01em;
}

.control-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-items: start;
}

/* Grid Type Selector */
.grid-type-selector {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.grid-type-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 0.85rem;
}

.grid-type-btn i {
    font-size: 1.4rem;
}

.grid-type-btn i,
.download-btn i {
    transition: transform var(--transition-fast);
}

.grid-type-btn:hover {
    background: var(--bg-glass-hover);
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.35);
}

.grid-type-btn.active {
    background: rgba(108, 99, 255, 0.2);
    border-color: var(--primary);
    color: var(--primary-light);
    box-shadow: 0 10px 24px rgba(108, 99, 255, 0.25);
}

/* Size Selector */
.size-selector {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 12px;
}

.size-selector input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    height: 6px;
    background: linear-gradient(90deg, rgba(108, 99, 255, 0.35), rgba(0, 217, 255, 0.2));
    border-radius: 3px;
    outline: none;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.size-selector input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 12px rgba(108, 99, 255, 0.55);
    border: 2px solid rgba(255, 255, 255, 0.7);
}

.size-display {
    background: var(--bg-glass);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    min-width: 70px;
    text-align: center;
    display: inline-flex;
    align-items: baseline;
    justify-content: center;
    gap: 6px;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.size-display span:last-child {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.size-presets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(56px, 1fr));
    gap: 8px;
}

.preset-btn {
    width: 100%;
    padding: 6px 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.preset-btn:hover {
    background: var(--bg-glass-hover);
    transform: translateY(-1px);
    box-shadow: 0 10px 18px rgba(0, 0, 0, 0.35);
}

.preset-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    box-shadow: 0 10px 20px rgba(108, 99, 255, 0.3);
}

/* Paper Size Selector */
.paper-size-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 10px;
}

.paper-btn {
    flex: 1;
    padding: 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.paper-btn:hover {
    background: var(--bg-glass-hover);
    transform: translateY(-1px);
    box-shadow: 0 10px 18px rgba(0, 0, 0, 0.35);
}

.paper-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    box-shadow: 0 12px 24px rgba(108, 99, 255, 0.3);
}

/* Color Picker */
.color-picker-wrapper {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.color-picker-wrapper input[type="color"] {
    width: 100%;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: var(--bg-glass);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03);
}

.color-presets {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.color-btn {
    width: 28px;
    height: 28px;
    border: 2px solid transparent;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.15);
}

.color-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 0 12px currentColor;
}

.color-btn.active {
    border-color: white;
    box-shadow: 0 0 10px currentColor;
}

/* Thickness Selector */
.thickness-selector {
    display: flex;
    align-items: center;
    gap: 12px;
}

.thickness-selector input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    height: 6px;
    background: linear-gradient(90deg, rgba(0, 217, 255, 0.35), rgba(108, 99, 255, 0.2));
    border-radius: 3px;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.thickness-selector input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--secondary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 217, 255, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.7);
}

#thicknessValue {
    font-weight: 600;
    min-width: 50px;
    text-align: right;
    background: var(--bg-glass);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

/* Download Section */
.download-section {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.download-section h3 {
    font-size: 1rem;
    margin-bottom: 16px;
}

.download-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.download-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-fast);
    font-weight: 600;
}

.download-btn i {
    font-size: 1.5rem;
    color: var(--primary);
}

.download-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(108, 99, 255, 0.35);
}

.grid-type-btn:hover i,
.download-btn:hover i {
    transform: translateY(-2px) scale(1.05);
}

.download-btn:hover i {
    color: white;
}

.generator-controls button:focus-visible,
.generator-controls input[type="range"]:focus-visible,
.generator-controls input[type="color"]:focus-visible {
    outline: 2px solid rgba(108, 99, 255, 0.6);
    outline-offset: 2px;
}

.size-selector input[type="range"]::-moz-range-track {
    height: 6px;
    border-radius: 3px;
    border: none;
    background: linear-gradient(90deg, rgba(108, 99, 255, 0.35), rgba(0, 217, 255, 0.2));
}

.thickness-selector input[type="range"]::-moz-range-track {
    height: 6px;
    border-radius: 3px;
    border: none;
    background: linear-gradient(90deg, rgba(0, 217, 255, 0.35), rgba(108, 99, 255, 0.2));
}

.size-selector input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary);
    border: 2px solid rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    cursor: pointer;
}

.thickness-selector input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    background: var(--secondary);
    border: 2px solid rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    cursor: pointer;
}

/* Generator Preview */
.generator-preview {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    height: 100%;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background: var(--bg-glass);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

.fullscreen-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    transition: var(--transition-fast);
}

.fullscreen-btn:hover {
    color: var(--primary);
}

.preview-container {
    padding: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 500px;
    background: white;
    flex: 1;
}

#gridCanvas {
    max-width: 100%;
    box-shadow: var(--shadow-lg);
}

/* ===== GRID TYPES SECTION ===== */
.grid-types {
    background: var(--bg-darker);
}

.types-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    align-items: stretch;
}

.type-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition-normal);
    position: relative;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    height: 100%;
}

.type-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
    border-color: var(--primary);
}

.type-card.featured {
    background: linear-gradient(135deg, rgba(108, 99, 255, 0.1), rgba(0, 217, 255, 0.05));
    border-color: var(--primary);
    padding-top: 48px;
}

.featured-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 6px 16px;
    border-radius: var(--radius-xl);
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 12px 26px rgba(108, 99, 255, 0.35);
}

.types-spotlight {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 16px;
    padding: 24px;
    text-align: center;
    min-height: 100%;
}

.spotlight-canvas {
    position: relative;
    width: 100%;
    min-height: 190px;
    border-radius: 26px;
    background:
        radial-gradient(120% 120% at 20% 15%, rgba(108, 99, 255, 0.35) 0%, transparent 55%),
        radial-gradient(120% 120% at 85% 85%, rgba(0, 217, 255, 0.3) 0%, transparent 55%),
        linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.08);
    overflow: hidden;
    transition: var(--transition-normal);
}

.spotlight-orb {
    position: absolute;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    top: 18%;
    left: 50%;
    transform: translateX(-50%);
    background: radial-gradient(circle, rgba(255, 255, 255, 0.8) 0%, rgba(108, 99, 255, 0.4) 45%, transparent 70%);
    filter: blur(0.2px);
    box-shadow: 0 0 50px rgba(108, 99, 255, 0.45);
    animation: spotlightPulse 6s ease-in-out infinite;
}

.spotlight-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.12) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
    background-size: 22px 22px;
    opacity: 0.25;
}

.spotlight-lines {
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(120deg, rgba(255, 255, 255, 0.12) 0 2px, transparent 2px 12px);
    opacity: 0.2;
}

.spotlight-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.spotlight-subtitle {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.28em;
    color: var(--text-secondary);
}

.types-spotlight:hover .spotlight-canvas {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

@keyframes spotlightPulse {
    0%, 100% { transform: translateX(-50%) scale(1); opacity: 0.9; }
    50% { transform: translateX(-50%) scale(1.06); opacity: 1; }
}

.type-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.type-preview {
    height: 80px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    background: white;
}

.square-preview {
    background-image: 
        linear-gradient(#4A90D9 1px, transparent 1px),
        linear-gradient(90deg, #4A90D9 1px, transparent 1px);
    background-size: 10px 10px;
}

.dots-preview {
    background-image: radial-gradient(circle, #4A90D9 1.5px, transparent 1.5px);
    background-size: 10px 10px;
}

.iso-preview {
    background: 
        linear-gradient(30deg, #4A90D9 12%, transparent 12.5%, transparent 87%, #4A90D9 87.5%, #4A90D9),
        linear-gradient(150deg, #4A90D9 12%, transparent 12.5%, transparent 87%, #4A90D9 87.5%, #4A90D9),
        linear-gradient(30deg, #4A90D9 12%, transparent 12.5%, transparent 87%, #4A90D9 87.5%, #4A90D9),
        linear-gradient(150deg, #4A90D9 12%, transparent 12.5%, transparent 87%, #4A90D9 87.5%, #4A90D9);
    background-size: 20px 35px;
    background-position: 0 0, 0 0, 10px 17.5px, 10px 17.5px;
}

.hex-preview {
    background-color: white;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='49' viewBox='0 0 28 49'%3E%3Cg fill-rule='evenodd'%3E%3Cg fill='%234A90D9' fill-opacity='1'%3E%3Cpath d='M13.99 9.25l13 7.5v15l-13 7.5L1 31.75v-15l12.99-7.5zM3 17.9v12.7l10.99 6.34 11-6.35V17.9l-11-6.34L3 17.9z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.mm-preview {
    background-image: 
        linear-gradient(#4A90D9 1px, transparent 1px),
        linear-gradient(90deg, #4A90D9 1px, transparent 1px),
        linear-gradient(rgba(74, 144, 217, 0.3) 1px, transparent 1px),
        linear-gradient(90deg, rgba(74, 144, 217, 0.3) 1px, transparent 1px);
    background-size: 50px 50px, 50px 50px, 10px 10px, 10px 10px;
}

.type-card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.type-card > p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 16px;
    line-height: 1.6;
}

.type-uses {
    list-style: none;
    margin-bottom: 20px;
}

.type-uses li {
    padding: 6px 0;
    padding-left: 24px;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.type-uses li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
}

.type-btn {
    width: 100%;
    padding: 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
    margin-top: auto;
}

.type-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(108, 99, 255, 0.3);
}

/* ===== USE CASES SECTION ===== */
.use-cases {
    background: var(--bg-dark);
}

.uses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
    align-items: stretch;
}

.use-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    height: 100%;
}

.use-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.use-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(108, 99, 255, 0.2), rgba(0, 217, 255, 0.1));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--primary-light);
    margin-bottom: 20px;
}

.use-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.use-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== FEATURES SECTION ===== */
.features {
    background: var(--bg-darker);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    align-items: stretch;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
    text-align: center;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: var(--secondary);
    box-shadow: 0 18px 40px rgba(0, 217, 255, 0.2);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(0, 217, 255, 0.15), rgba(108, 99, 255, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--secondary);
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== HOW TO USE SECTION ===== */
.how-to-use {
    background: var(--bg-dark);
    position: relative;
    overflow: hidden;
}

.how-to-use::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(1200px 500px at 20% -10%, rgba(108, 99, 255, 0.18), transparent 65%),
        radial-gradient(900px 400px at 85% 10%, rgba(0, 217, 255, 0.16), transparent 65%);
    pointer-events: none;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    position: relative;
    z-index: 1;
}

.step {
    text-align: center;
    position: relative;
    padding: 28px 22px 30px;
    background: linear-gradient(155deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
    overflow: hidden;
    z-index: 1;
}

.step-number {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    position: relative;
    box-shadow: 0 12px 30px rgba(108, 99, 255, 0.4);
    z-index: 2;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.step-number::after {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 18px rgba(0, 217, 255, 0.35);
    opacity: 0.7;
}

.step-content h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.step::after {
    content: '';
    position: absolute;
    inset: -80% -40%;
    background: linear-gradient(120deg, transparent 45%, rgba(255, 255, 255, 0.1) 55%, transparent 70%);
    opacity: 0;
    transform: translateX(-20%);
    transition: opacity 0.6s ease, transform 0.6s ease;
    pointer-events: none;
}

.step:hover {
    transform: translateY(-6px);
    border-color: rgba(108, 99, 255, 0.35);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}

.step:hover .step-number {
    transform: translateY(-4px) scale(1.08);
    box-shadow: 0 16px 36px rgba(108, 99, 255, 0.55);
}

.step:hover .step-number::after {
    opacity: 1;
    animation: stepRing 1.4s ease-in-out infinite;
}

.step:hover::after {
    opacity: 1;
    transform: translateX(20%);
}

@media (min-width: 900px) {
    .steps-container::before {
        content: '';
        position: absolute;
        top: 58px;
        left: 0;
        right: 0;
        height: 2px;
        background: linear-gradient(90deg, transparent, rgba(108, 99, 255, 0.45), rgba(0, 217, 255, 0.45), transparent);
        opacity: 0.5;
        z-index: 0;
    }
}

@keyframes stepRing {
    0% { transform: scale(1); box-shadow: 0 0 18px rgba(0, 217, 255, 0.35); }
    50% { transform: scale(1.08); box-shadow: 0 0 28px rgba(108, 99, 255, 0.5); }
    100% { transform: scale(1); box-shadow: 0 0 18px rgba(0, 217, 255, 0.35); }
}

/* ===== FAQ SECTION ===== */
.faq {
    background: var(--bg-darker);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
    position: relative;
    transition: var(--transition-normal);
}

.faq-item:hover {
    border-color: rgba(108, 99, 255, 0.4);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.35);
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-glass-hover);
}

.faq-question i {
    transition: var(--transition-fast);
    color: var(--primary);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 24px 20px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
    background: var(--bg-dark);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    align-items: stretch;
}

.testimonial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    height: 100%;
}

.testimonial-card:hover {
    transform: translateY(-6px);
    border-color: rgba(108, 99, 255, 0.45);
    box-shadow: var(--shadow-glow);
}

.generator-controls:hover,
.generator-preview:hover {
    border-color: rgba(108, 99, 255, 0.4);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}

.generator-controls::after,
.generator-preview::after,
.type-card::after,
.use-card::after,
.feature-card::after,
.testimonial-card::after {
    content: '';
    position: absolute;
    inset: -80% -60%;
    background: linear-gradient(120deg, transparent 35%, rgba(255, 255, 255, 0.08) 50%, transparent 65%);
    opacity: 0;
    transform: translateX(-20%);
    transition: opacity 0.6s ease, transform 0.6s ease;
    pointer-events: none;
}

.generator-controls:hover::after,
.generator-preview:hover::after,
.type-card:hover::after,
.use-card:hover::after,
.feature-card:hover::after,
.testimonial-card:hover::after {
    opacity: 1;
    transform: translateX(20%);
}

.testimonial-stars {
    color: #FFD700;
    margin-bottom: 16px;
}

.testimonial-stars i {
    margin-right: 4px;
}

.testimonial-card > p {
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.7;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: auto;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.author-info strong {
    display: block;
    margin-bottom: 4px;
}

.author-info span {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===== CTA SECTION ===== */
.cta-section {
    background: linear-gradient(135deg, rgba(108, 99, 255, 0.1), rgba(0, 217, 255, 0.05));
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    text-wrap: balance;
}

.cta-content p {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 1.1rem;
    text-wrap: pretty;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-darker);
    padding: 80px 0 40px;
}

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

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand p {
    color: var(--text-secondary);
    line-height: 1.7;
}

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

.footer-links ul {
    list-style: none;
}

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-muted);
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--bg-glass);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.social-links a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.35);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .generator-wrapper {
        grid-template-columns: 1fr;
    }

    .types-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg-dark);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition-normal);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    .lang-switcher {
        top: 80px;
        right: 16px;
    }
    
    .hero-stats {
        gap: 24px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .control-row {
        grid-template-columns: 1fr;
    }

    .types-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 640px) {
    .size-selector {
        flex-direction: column;
        align-items: stretch;
    }

    .size-display {
        align-self: flex-end;
    }

    .paper-size-selector {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .download-buttons {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .spotlight-subtitle {
        letter-spacing: 0.2em;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .grid-type-selector {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}