/* Neo-Brutalism Design System for nai-yun.cfd */
@import url('https://fonts.googleapis.com/css2?family=Archivo+Black&family=Space+Grotesk:wght@500;700&display=swap');

:root {
  --bg-cream: #F5F1E8;
  --ink-black: #111111;
  --accent-blue: #2B4EFF;
  --accent-yellow: #FFD02F;
  --accent-pink: #FF5E8A;
  --card-white: #FFFFFF;
  --border-thick: 3px solid #111111;
  --shadow-hard: 6px 6px 0 #111111;
  --shadow-hover: 10px 10px 0 #111111;
  --font-display: 'Archivo Black', -apple-system, sans-serif;
  --font-body: 'Space Grotesk', -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-cream);
  color: var(--ink-black);
  font-family: var(--font-body);
  line-height: 1.65;
  overflow-x: hidden;
}

/* Hard Neo-Brutalism Utilities */
.brutal-box {
  background: var(--card-white);
  border: var(--border-thick);
  box-shadow: var(--shadow-hard);
  border-radius: 4px;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.brutal-box:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-hover);
}

/* Chunky Highlight Boxes behind text */
.highlight-yellow {
  background: var(--accent-yellow);
  padding: 2px 8px;
  border: 2px solid var(--ink-black);
  display: inline-block;
  box-shadow: 3px 3px 0 var(--ink-black);
  border-radius: 2px;
}

.highlight-pink {
  background: var(--accent-pink);
  color: #FFF;
  padding: 2px 8px;
  border: 2px solid var(--ink-black);
  display: inline-block;
  box-shadow: 3px 3px 0 var(--ink-black);
  border-radius: 2px;
}

.highlight-blue {
  background: var(--accent-blue);
  color: #FFF;
  padding: 2px 8px;
  border: 2px solid var(--ink-black);
  display: inline-block;
  box-shadow: 3px 3px 0 var(--ink-black);
  border-radius: 2px;
}

/* Typography */
h1, h2, h3, h4, .brand-font {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
}

/* Buttons with Press-Down Effect */
.btn-brutal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  padding: 14px 28px;
  border: var(--border-thick);
  box-shadow: var(--shadow-hard);
  text-decoration: none;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.15s ease-out;
  text-transform: uppercase;
  color: var(--ink-black);
}

.btn-brutal:hover {
  transform: translate(3px, 3px);
  box-shadow: 3px 3px 0 var(--ink-black);
}

.btn-blue {
  background: var(--accent-blue);
  color: #FFF !important;
}

.btn-yellow {
  background: var(--accent-yellow);
  color: var(--ink-black) !important;
}

.btn-pink {
  background: var(--accent-pink);
  color: #FFF !important;
}

.btn-white {
  background: #FFF;
  color: var(--ink-black) !important;
}

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

/* Top Navigation */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 100;
  background: var(--bg-cream);
  border-bottom: var(--border-thick);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo-box {
  background: var(--accent-yellow);
  border: var(--border-thick);
  box-shadow: 4px 4px 0 var(--ink-black);
  padding: 6px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--ink-black);
  font-family: var(--font-display);
  font-size: 1.4rem;
  border-radius: 4px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-menu a {
  color: var(--ink-black);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.95rem;
  padding: 4px 8px;
  transition: all 0.2s;
  border: 2px solid transparent;
}

.nav-menu a:hover {
  background: var(--accent-yellow);
  border: 2px solid var(--ink-black);
  box-shadow: 3px 3px 0 var(--ink-black);
}

.nav-menu a.nav-news-entry {
  background: var(--accent-pink);
  color: #FFF;
  border: 2px solid var(--ink-black);
  box-shadow: 3px 3px 0 var(--ink-black);
}

/* Infinite Marquee Ticker */
.marquee-bar {
  background: var(--ink-black);
  color: #FFF;
  border-bottom: var(--border-thick);
  overflow: hidden;
  white-space: nowrap;
  padding: 12px 0;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.05em;
}

.marquee-inner {
  display: inline-block;
  animation: marquee 28s linear infinite;
}

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

/* Rotating Stickers & Badges */
.badge-sticker-pink {
  display: inline-block;
  background: var(--accent-pink);
  color: #FFF;
  font-family: var(--font-display);
  font-size: 0.95rem;
  padding: 8px 18px;
  border: var(--border-thick);
  box-shadow: 4px 4px 0 var(--ink-black);
  transform: rotate(-3deg);
  margin-bottom: 24px;
}

.badge-sticker-yellow {
  display: inline-block;
  background: var(--accent-yellow);
  color: var(--ink-black);
  font-family: var(--font-display);
  font-size: 0.9rem;
  padding: 6px 16px;
  border: var(--border-thick);
  box-shadow: 4px 4px 0 var(--ink-black);
  transform: rotate(4deg);
}

/* Hero Section */
.hero-section {
  padding: 80px 0 60px;
  text-align: center;
  position: relative;
}

.hero-title {
  font-size: 3.8rem;
  line-height: 1.15;
  margin-bottom: 24px;
  max-width: 980px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: #222;
  max-width: 760px;
  margin: 0 auto 38px;
  font-weight: 500;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.feature-card {
  padding: 34px 26px;
}

.feature-icon-box {
  width: 58px;
  height: 58px;
  border: var(--border-thick);
  box-shadow: 4px 4px 0 var(--ink-black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
  border-radius: 4px;
}

.feature-title {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.feature-desc {
  font-size: 0.96rem;
  color: #333;
  line-height: 1.65;
}

/* Media & AI Grid */
.media-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}

.media-card {
  padding: 36px 30px;
}

.media-pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.media-pill {
  background: var(--bg-cream);
  border: 2px solid var(--ink-black);
  box-shadow: 3px 3px 0 var(--ink-black);
  padding: 6px 14px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  border-radius: 2px;
}

/* Pricing Grid */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  align-items: stretch;
}

.pricing-card {
  padding: 40px 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.pricing-popular {
  background: var(--accent-yellow);
  transform: translate(-4px, -4px);
  box-shadow: 10px 10px 0 var(--ink-black);
}

.popular-banner {
  background: var(--accent-pink);
  color: #FFF;
  border: 2px solid var(--ink-black);
  box-shadow: 3px 3px 0 var(--ink-black);
  padding: 4px 14px;
  font-family: var(--font-display);
  font-size: 0.82rem;
  display: inline-block;
  margin-bottom: 14px;
  border-radius: 2px;
}

.price-box {
  margin: 22px 0;
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-currency {
  font-size: 1.6rem;
  font-family: var(--font-display);
}

.price-value {
  font-size: 3.6rem;
  font-family: var(--font-display);
  line-height: 1;
}

.price-cycle {
  font-size: 0.95rem;
  font-weight: 700;
}

.pricing-features {
  list-style: none;
  margin-bottom: 30px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing-features li {
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Reviews Grid */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.review-card {
  padding: 30px 24px;
}

.review-badge {
  background: var(--accent-yellow);
  border: 2px solid var(--ink-black);
  padding: 2px 8px;
  font-size: 0.82rem;
  font-weight: 700;
  display: inline-block;
  margin-bottom: 12px;
}

.review-text {
  font-size: 0.96rem;
  line-height: 1.7;
  color: #222;
  margin-bottom: 18px;
}

.reviewer-box {
  display: flex;
  align-items: center;
  gap: 12px;
}

.reviewer-avatar {
  width: 44px;
  height: 44px;
  background: var(--accent-pink);
  color: #FFF;
  border: 2px solid var(--ink-black);
  box-shadow: 2px 2px 0 var(--ink-black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.1rem;
}

/* FAQ Accordion */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.faq-item {
  padding: 22px 26px;
  cursor: pointer;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.faq-answer {
  margin-top: 14px;
  font-size: 0.96rem;
  color: #333;
  line-height: 1.7;
  display: none;
  border-top: 2px dashed #111;
  padding-top: 12px;
}

.faq-item.active .faq-answer {
  display: block;
}

/* Large Blue CTA Banner */
.cta-banner {
  background: var(--accent-blue);
  color: #FFF;
  border: var(--border-thick);
  box-shadow: var(--shadow-hard);
  padding: 60px 40px;
  text-align: center;
  margin: 80px 0 60px;
  border-radius: 4px;
}

.cta-banner h2 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

/* Footer: STRICTLY ONLY 4 TITLES OPENING IN NEW TAB */
.site-footer {
  background: #FFF;
  border-top: var(--border-thick);
  padding: 40px 0;
}

.footer-nav-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 36px;
  margin-bottom: 20px;
}

.footer-link {
  color: var(--ink-black);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.05rem;
  border-bottom: 3px solid transparent;
  transition: all 0.2s;
}

.footer-link:hover {
  border-bottom: 3px solid var(--accent-yellow);
  background: var(--accent-yellow);
  padding: 2px 6px;
}

.footer-copyright {
  text-align: center;
  font-size: 0.88rem;
  font-weight: 600;
  color: #666;
}

/* Mobile Responsive */
@media (max-width: 900px) {
  .hero-title {
    font-size: 2.3rem;
  }
  .nav-menu {
    display: none;
  }
  .features-grid, .pricing-grid, .reviews-grid, .media-grid {
    grid-template-columns: 1fr;
  }
  .footer-nav-container {
    flex-wrap: wrap;
    gap: 18px;
  }
}