/* ========================================
   ekian.dev — Styles
   Clean, editorial, black & white
   ======================================== */

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

:root {
    --white: #ffffff;
    --off-white: #fafafa;
    --gray-50: #f5f5f5;
    --gray-100: #eeeeee;
    --gray-200: #e0e0e0;
    --gray-300: #cccccc;
    --gray-400: #767676;
    --gray-500: #666666;
    --gray-600: #555555;
    --gray-700: #444444;
    --gray-800: #2a2a2a;
    --gray-900: #1a1a1a;
    --black: #0a0a0a;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
    --shadow-xl: 0 16px 50px rgba(0,0,0,0.12);

    --transition: 0.2s ease;
    --transition-slow: 0.35s ease;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

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

/* --- Accessibility --- */
*:focus-visible {
    outline: 2px solid var(--black);
    outline-offset: 2px;
}

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

/* --- Container --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    padding: 10px 22px;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    letter-spacing: -0.01em;
}

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

.btn-primary:hover {
    background-color: var(--gray-800);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--gray-100);
    color: var(--gray-800);
}

.btn-secondary:hover {
    background-color: var(--gray-200);
}

.btn-ghost {
    background-color: transparent;
    color: var(--gray-700);
    border: 1.5px solid var(--gray-300);
}

.btn-ghost:hover {
    border-color: var(--gray-800);
    color: var(--black);
}

.btn-lg {
    font-size: 15px;
    padding: 14px 30px;
    border-radius: var(--radius-md);
}

.btn-full {
    width: 100%;
}

/* --- Navigation --- */
#main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-100);
    transition: all var(--transition);
}

#main-nav.scrolled {
    box-shadow: var(--shadow-sm);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 17px;
    letter-spacing: -0.03em;
    color: var(--black);
}

.logo-icon {
    font-size: 20px;
}

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

.nav-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    transition: color var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--black);
    transition: width var(--transition);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--black);
    border-radius: 1px;
    transition: all var(--transition);
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-100);
    padding: 20px 24px;
    z-index: 999;
    flex-direction: column;
    gap: 4px;
}

.mobile-menu.active {
    display: flex;
}

.mobile-link {
    display: block;
    padding: 12px 0;
    font-size: 15px;
    font-weight: 500;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
}

.mobile-menu-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 16px;
}

/* --- Hero --- */
.hero {
    padding: 140px 24px 80px;
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    min-height: 85vh;
}

.hero-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gray-600);
    background: var(--gray-100);
    padding: 6px 14px;
    border-radius: 100px;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(36px, 5vw, 56px);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -0.035em;
    color: var(--black);
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 17px;
    line-height: 1.65;
    color: var(--gray-600);
    max-width: 480px;
    margin-bottom: 36px;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 28px;
}

.stat-number {
    display: block;
    font-size: 28px;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--black);
}

.stat-label {
    display: block;
    font-size: 13px;
    color: var(--gray-500);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 36px;
    background: var(--gray-200);
}

/* --- Code Window --- */
.code-window {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-xl);
    background: var(--gray-900);
}

.code-window-header {
    background: var(--gray-800);
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.window-dots {
    display: flex;
    gap: 7px;
}

.dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
}

.dot-close { background: #ff5f57; }
.dot-min { background: #ffbd2e; }
.dot-max { background: #28c940; }

.window-title {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--gray-400);
}

.code-window-body {
    padding: 24px;
    overflow-x: auto;
}

.code-window-body pre {
    margin: 0;
}

.code-window-body code {
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.7;
    color: var(--gray-300);
}

.code-keyword { color: #c9a0dc; }
.code-var { color: #e0e0e0; }
.code-func { color: #87ceeb; }
.code-string { color: #a8d8a8; }
.code-comment { color: #666666; }

/* --- Social Proof --- */
.social-proof {
    border-top: 1px solid var(--gray-100);
    border-bottom: 1px solid var(--gray-100);
    padding: 32px 0;
    background: var(--off-white);
}

.social-proof-text {
    text-align: center;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 20px;
}

.proof-items {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.proof-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
}

.proof-icon {
    color: var(--gray-400);
}

/* --- Sections --- */
.section {
    padding: 100px 0;
}

.section-alt {
    background: var(--off-white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--gray-500);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--black);
    line-height: 1.15;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--gray-600);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.6;
}

/* --- Curriculum Cards --- */
.curriculum-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.curriculum-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 36px 30px;
    transition: all var(--transition-slow);
    position: relative;
}

.curriculum-card:hover {
    border-color: var(--gray-400);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.curriculum-level {
    font-size: 48px;
    font-weight: 800;
    color: var(--gray-100);
    letter-spacing: -0.04em;
    margin-bottom: 8px;
    line-height: 1;
}

.curriculum-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.curriculum-desc {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 20px;
}

.curriculum-topics {
    list-style: none;
    margin-bottom: 24px;
}

.curriculum-topics li {
    font-size: 13px;
    color: var(--gray-700);
    padding: 6px 0;
    border-bottom: 1px solid var(--gray-100);
    padding-left: 16px;
    position: relative;
}

.curriculum-topics li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--gray-400);
    font-size: 12px;
}

.curriculum-topics li:last-child {
    border-bottom: none;
}

.curriculum-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--gray-100);
}

.curriculum-count {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-500);
}

.curriculum-tag {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 4px 10px;
    border-radius: 100px;
}

.tag-free {
    background: var(--gray-100);
    color: var(--gray-700);
}

.tag-mixed {
    background: var(--gray-900);
    color: var(--gray-300);
}

.tag-pro {
    background: var(--black);
    color: var(--white);
}

/* --- Lessons List --- */
.filter-bar {
    display: flex;
    gap: 6px;
    margin-bottom: 32px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 600;
    padding: 8px 18px;
    border: 1.5px solid var(--gray-200);
    border-radius: 100px;
    background: var(--white);
    color: var(--gray-600);
    cursor: pointer;
    transition: all var(--transition);
}

.filter-btn:hover {
    border-color: var(--gray-400);
    color: var(--black);
}

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

.lessons-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.lesson-card {
    display: grid;
    grid-template-columns: 48px 1fr auto 32px;
    align-items: center;
    gap: 20px;
    padding: 20px 24px;
    background: var(--white);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-md);
    transition: all var(--transition);
    cursor: pointer;
}

.lesson-card:hover {
    border-color: var(--gray-300);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

.lesson-card.featured {
    border: 1.5px solid var(--gray-300);
    background: var(--gray-50);
}

.lesson-card.hidden {
    display: none;
}

.lesson-number {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-400);
}

.lesson-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.lesson-desc {
    font-size: 13px;
    color: var(--gray-500);
    line-height: 1.5;
}

.lesson-meta {
    display: flex;
    gap: 12px;
    margin-top: 8px;
    align-items: center;
}

.lesson-level {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 2px 8px;
    border-radius: 100px;
}

.level-beginner {
    background: var(--gray-100);
    color: var(--gray-700);
}

.level-intermediate {
    background: var(--gray-200);
    color: var(--gray-800);
}

.level-advanced {
    background: var(--gray-800);
    color: var(--gray-200);
}

.lesson-duration {
    font-size: 12px;
    color: var(--gray-500);
}

.lesson-project {
    font-size: 12px;
    color: var(--gray-700);
    font-weight: 600;
}

.lesson-access {
    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}

.access-free {
    color: var(--gray-500);
}

.access-pro {
    color: var(--gray-700);
    background: var(--gray-100);
    padding: 4px 12px;
    border-radius: 100px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.lock-icon {
    font-size: 11px;
}

.lesson-arrow {
    font-size: 18px;
    color: var(--gray-400);
    transition: all var(--transition);
}

.lesson-card:hover .lesson-arrow {
    color: var(--black);
    transform: translateX(4px);
}

/* --- Features Grid --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.feature-card {
    padding: 32px 28px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition-slow);
    background: var(--white);
}

.feature-card:hover {
    border-color: var(--gray-400);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.feature-icon {
    font-size: 22px;
    color: var(--gray-500);
    margin-bottom: 16px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    border: 1px solid var(--gray-100);
}

.feature-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
}

.feature-desc {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.55;
}

/* --- Pricing --- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 780px;
    margin: 0 auto;
}

.pricing-card {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    background: var(--white);
    position: relative;
    transition: all var(--transition-slow);
}

.pricing-card:hover {
    box-shadow: var(--shadow-md);
}

.pricing-featured {
    border: 2px solid var(--black);
}

.pricing-popular {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--black);
    color: var(--white);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 4px 16px;
    border-radius: 100px;
    white-space: nowrap;
}

.pricing-header {
    margin-bottom: 28px;
}

.pricing-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 8px;
}

.price-amount {
    font-size: 42px;
    font-weight: 800;
    color: var(--black);
    letter-spacing: -0.03em;
}

.price-period {
    font-size: 14px;
    color: var(--gray-500);
    font-weight: 500;
}

.pricing-features {
    list-style: none;
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 8px 0;
    font-size: 14px;
    color: var(--gray-700);
    display: flex;
    align-items: flex-start;
    gap: 10px;
    border-bottom: 1px solid var(--gray-100);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features li.disabled {
    color: var(--gray-400);
}

.check {
    font-weight: 700;
    color: var(--gray-800);
    flex-shrink: 0;
}

.x-mark {
    color: var(--gray-300);
    flex-shrink: 0;
}

/* --- FAQ --- */
.faq-list {
    max-width: 700px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--gray-200);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    background: none;
    border: none;
    font-family: var(--font-sans);
    font-size: 15px;
    font-weight: 600;
    color: var(--black);
    cursor: pointer;
    text-align: left;
    transition: color var(--transition);
}

.faq-question:hover {
    color: var(--gray-700);
}

.faq-icon {
    font-size: 20px;
    font-weight: 300;
    color: var(--gray-500);
    transition: transform var(--transition);
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), padding var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding-bottom: 20px;
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.65;
}

/* --- CTA Section --- */
.cta-section {
    padding: 80px 0;
    background: var(--black);
    text-align: center;
}

.cta-title {
    font-size: clamp(26px, 3.5vw, 36px);
    font-weight: 800;
    color: var(--white);
    letter-spacing: -0.03em;
    margin-bottom: 12px;
}

.cta-subtitle {
    font-size: 16px;
    color: var(--gray-500);
    margin-bottom: 32px;
}

.cta-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-section .btn-primary {
    background: var(--white);
    color: var(--black);
}

.cta-section .btn-primary:hover {
    background: var(--gray-200);
}

.cta-section .btn-ghost {
    color: var(--gray-400);
    border-color: var(--gray-700);
}

.cta-section .btn-ghost:hover {
    color: var(--white);
    border-color: var(--gray-400);
}

/* --- Footer --- */
.footer {
    padding: 64px 0 32px;
    border-top: 1px solid var(--gray-100);
    background: var(--off-white);
}

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

.footer-brand .logo {
    margin-bottom: 14px;
}

.footer-desc {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.6;
    max-width: 280px;
}

.footer-heading {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--gray-800);
    margin-bottom: 16px;
}

.footer-link {
    display: block;
    font-size: 14px;
    color: var(--gray-500);
    padding: 4px 0;
    transition: color var(--transition);
}

.footer-link:hover {
    color: var(--black);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
}

.footer-bottom p {
    font-size: 13px;
    color: var(--gray-500);
}

/* --- Animations --- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.hero-content {
    animation: fadeInUp 0.7s ease forwards;
}

.hero-visual {
    animation: fadeInUp 0.7s ease 0.15s forwards;
    opacity: 0;
    animation-fill-mode: forwards;
}

/* Animate elements on scroll */
.curriculum-card,
.feature-card,
.lesson-card,
.pricing-card,
.faq-item {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.curriculum-card.visible,
.feature-card.visible,
.lesson-card.visible,
.pricing-card.visible,
.faq-item.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animation delays for grid items */
.curriculum-card:nth-child(2).visible { transition-delay: 0.08s; }
.curriculum-card:nth-child(3).visible { transition-delay: 0.16s; }

.feature-card:nth-child(2).visible { transition-delay: 0.06s; }
.feature-card:nth-child(3).visible { transition-delay: 0.12s; }
.feature-card:nth-child(4).visible { transition-delay: 0.18s; }
.feature-card:nth-child(5).visible { transition-delay: 0.24s; }
.feature-card:nth-child(6).visible { transition-delay: 0.3s; }

/* --- Responsive --- */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        gap: 48px;
        min-height: auto;
        padding-top: 120px;
    }

    .hero-visual {
        max-width: 600px;
    }

    .curriculum-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-actions {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .hero-stats {
        gap: 20px;
    }

    .stat-number {
        font-size: 22px;
    }

    .section {
        padding: 64px 0;
    }

    .lesson-card {
        grid-template-columns: 32px 1fr;
        align-items: flex-start;
        padding: 18px 16px;
        gap: 12px;
    }

    .lesson-number {
        margin-top: 2px;
    }

    .lesson-access {
        grid-column: 2;
        justify-self: flex-start;
        margin-top: 4px;
    }

    .lesson-arrow {
        display: none;
    }

    .lesson-meta {
        flex-wrap: wrap;
        gap: 8px;
    }

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

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .cta-section {
        padding: 60px 20px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .stat-divider {
        display: none;
    }

    .filter-bar {
        gap: 4px;
    }

    .filter-btn {
        font-size: 12px;
        padding: 6px 14px;
    }
}

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

::-webkit-scrollbar-track {
    background: var(--gray-50);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 4px;
}

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

/* --- Selection --- */
::selection {
    background: var(--black);
    color: var(--white);
}

/* --- Pro Lock Modal --- */
.pro-lock-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.pro-lock-overlay.active {
    opacity: 1;
    visibility: visible;
}

.pro-lock-modal {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 48px;
    max-width: 440px;
    width: 100%;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.pro-lock-overlay.active .pro-lock-modal {
    transform: translateY(0);
}

.pro-lock-icon {
    font-size: 32px;
    color: var(--black);
    margin-bottom: 20px;
}

.pro-lock-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--black);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.pro-lock-desc {
    font-size: 14px;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 32px;
}

.pro-lock-input-group {
    margin-bottom: 24px;
    text-align: left;
}

.pro-lock-input-group label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    margin-bottom: 8px;
}

.pro-lock-input {
    width: 100%;
    padding: 14px 16px;
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--black);
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    transition: all 0.2s;
    box-sizing: border-box;
}

.pro-lock-input:focus {
    border-color: var(--black);
    background: var(--white);
    outline: none;
}

.pro-lock-btn {
    width: 100%;
    padding: 16px;
    background: var(--black);
    color: var(--white);
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.2s;
    margin-bottom: 16px;
}

.pro-lock-btn:hover {
    background: var(--gray-800);
}

.pro-lock-error {
    color: #e53e3e;
    font-size: 13px;
    font-weight: 600;
    margin-top: 12px;
    display: none;
}

.pro-lock-patreon-link {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-500);
    text-decoration: underline;
    transition: color 0.2s;
}

.pro-lock-patreon-link:hover {
    color: var(--black);
}

body.locked {
    overflow: hidden;
}

.content-locked-blur {
    filter: blur(8px);
    opacity: 0.3;
    pointer-events: none;
    user-select: none;
}