@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@300;400;500;600;700&family=Noto+Sans:wght@300;400;500;600;700&display=swap');

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --c-primary: #6514ff;
  --c-accent: #bf00ff;
  --c-dark: #1c1726;
  --c-dark2: #251e33;
  --c-dark3: #2e2540;
  --c-white: #ffffff;
  --c-gray: #c8b8f0;
  --c-gray-light: #f0eaff;
  --c-text: #e8deff;
  --c-text-muted: #a090c8;
  --c-border: rgba(101,20,255,0.25);
  --radius-pill: 999px;
  --radius-card: 28px;
  --radius-sm: 12px;
  --gap-xl: 64px;
  --gap-lg: 48px;
  --gap-md: 32px;
  --gap-sm: 20px;
  --gap-xs: 12px;
  --font-main: 'Be Vietnam Pro', 'Noto Sans', system-ui, sans-serif;
  --max-w: 1200px;
  --transition: 200ms cubic-bezier(0.4,0,0.2,1);
}

html {
  font-size: 17px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--c-dark);
  color: var(--c-text);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--c-accent);
}

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

ul, ol {
  list-style: none;
}

/* ===== ANIMATED BACKGROUND PATTERN ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(101,20,255,0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(191,0,255,0.12) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
  animation: bgPulse 8s ease-in-out infinite alternate;
}

@keyframes bgPulse {
  from {
    background-image:
      radial-gradient(circle at 20% 20%, rgba(101,20,255,0.15) 0%, transparent 50%),
      radial-gradient(circle at 80% 80%, rgba(191,0,255,0.12) 0%, transparent 50%);
  }
  to {
    background-image:
      radial-gradient(circle at 30% 40%, rgba(101,20,255,0.20) 0%, transparent 55%),
      radial-gradient(circle at 70% 60%, rgba(191,0,255,0.18) 0%, transparent 55%);
  }
}

/* ===== ANNOUNCE BAR ===== */
.announce-bar {
  position: relative;
  z-index: 100;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  color: var(--c-white);
  text-align: center;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  padding: 8px 16px;
}

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(28,23,38,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
}

.brand-row {
  display: flex;
  align-items: center;
  gap: var(--gap-xs);
  padding: 16px 24px 8px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--c-white);
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--c-white) 30%, var(--c-gray));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  min-height: 40px;
  display: flex;
  align-items: center;
}

.brand-name:hover {
  background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand-tag {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--c-accent);
  background: rgba(191,0,255,0.12);
  border: 1px solid rgba(191,0,255,0.3);
  border-radius: var(--radius-pill);
  padding: 3px 10px;
}

.pill-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 24px 12px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.pill-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-gray);
  background: rgba(101,20,255,0.1);
  border: 1px solid var(--c-border);
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  min-height: 40px;
  cursor: pointer;
  white-space: nowrap;
}

.pill-btn:hover {
  background: rgba(101,20,255,0.3);
  color: var(--c-white);
  border-color: var(--c-primary);
  transform: translateY(-1px);
}

.pill-btn.active {
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  color: var(--c-white);
  border-color: transparent;
}

/* ===== HERO (HOME) ===== */
.hero-section {
  width: 100%;
}

.hero-inner {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  overflow: hidden;
}

.hero-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(28,23,38,0.85) 0%,
    rgba(101,20,255,0.5) 50%,
    rgba(191,0,255,0.35) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
  padding: var(--gap-xl) var(--gap-lg);
  text-align: right;
}

.hero-content h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--c-white);
  letter-spacing: -0.03em;
  margin-bottom: var(--gap-sm);
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--c-gray);
  margin-bottom: var(--gap-md);
  line-height: 1.7;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  color: var(--c-white);
  border-radius: var(--radius-pill);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: transform var(--transition), box-shadow var(--transition);
  min-height: 48px;
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(191,0,255,0.4);
  color: var(--c-white);
}

/* ===== PAGE HERO (non-home) ===== */
.page-hero {
  position: relative;
  padding: var(--gap-xl) 0 var(--gap-lg);
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(101,20,255,0.2) 0%, rgba(191,0,255,0.1) 100%);
  pointer-events: none;
}

.page-hero--faq::before {
  background: linear-gradient(135deg, rgba(191,0,255,0.2) 0%, rgba(101,20,255,0.1) 100%);
}

.page-hero--contact::before {
  background: linear-gradient(135deg, rgba(101,20,255,0.25) 0%, rgba(191,0,255,0.08) 100%);
}

.page-hero--privacy::before {
  background: linear-gradient(135deg, rgba(28,23,38,0.8) 0%, rgba(101,20,255,0.15) 100%);
}

.page-hero-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.page-hero-inner h1 {
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-weight: 700;
  color: var(--c-white);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: var(--gap-xs);
}

.page-hero-desc {
  font-size: 1.05rem;
  color: var(--c-gray);
  max-width: 640px;
}

.breadcrumb-link {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--c-accent);
  margin-bottom: var(--gap-xs);
  font-weight: 600;
}

/* ===== MAIN LAYOUT ===== */
main {
  position: relative;
  z-index: 1;
}

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* content-section with aside on left */
.content-section {
  display: flex;
  gap: var(--gap-lg);
  padding: var(--gap-xl) 24px;
  max-width: var(--max-w);
  margin: 0 auto;
  align-items: flex-start;
}

.content-aside {
  width: 260px;
  flex-shrink: 0;
  position: sticky;
  top: 120px;
}

.aside-block {
  background: var(--c-dark2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: var(--gap-sm);
  margin-bottom: var(--gap-sm);
}

.aside-block h2 {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-accent);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.aside-block .subtitle {
  font-size: 0.78rem;
  color: var(--c-text-muted);
  margin-bottom: var(--gap-xs);
}

.aside-block dl dt {
  padding: 0;
}

.aside-block dl dt a,
.aside-block dl dd a {
  display: block;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--c-text-muted);
  transition: background var(--transition), color var(--transition);
}

.aside-block dl dt a:hover,
.aside-block dl dd a:hover {
  background: rgba(101,20,255,0.15);
  color: var(--c-white);
}

.aside-block--cta {
  text-align: center;
}

.aside-block--cta p {
  font-size: 0.9rem;
  color: var(--c-text-muted);
  margin-bottom: var(--gap-xs);
}

.content-main {
  flex: 1;
  min-width: 0;
}

/* ===== PROSE / ARTICLE CONTENT ===== */
.prose {
  color: var(--c-text);
}

.pub-date,
.mod-date {
  display: inline-block;
  font-size: 0.8rem;
  color: var(--c-text-muted);
  background: rgba(101,20,255,0.12);
  border-radius: var(--radius-pill);
  padding: 3px 12px;
  margin-bottom: var(--gap-sm);
}

.mod-date {
  margin-left: 8px;
}

.page-content {
  font-size: 1rem;
  line-height: 1.75;
}

.page-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--c-white);
  margin: var(--gap-lg) 0 var(--gap-xs);
  letter-spacing: -0.01em;
}

.page-content h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--c-gray);
  margin: var(--gap-md) 0 var(--gap-xs);
}

.page-content p {
  margin-bottom: var(--gap-sm);
}

.page-content ul,
.page-content ol {
  padding-left: 1.5em;
  margin-bottom: var(--gap-sm);
  list-style: disc;
}

.page-content li {
  margin-bottom: 6px;
}

.page-content a {
  color: var(--c-accent);
  text-decoration: underline;
  text-decoration-color: rgba(191,0,255,0.4);
}

.page-content a:hover {
  color: var(--c-white);
  text-decoration-color: var(--c-accent);
}

.page-content strong {
  color: var(--c-white);
  font-weight: 700;
}

.page-content blockquote {
  border-left: 3px solid var(--c-primary);
  padding-left: var(--gap-sm);
  color: var(--c-gray);
  margin: var(--gap-sm) 0;
}

/* ===== SECTION HEADINGS ===== */
h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--c-white);
  letter-spacing: -0.02em;
}

h2 + .subtitle,
h2 + p.subtitle,
h2 + p.subhead,
h2 + p.desc,
h2 + p.lead {
  font-size: 1rem;
  color: var(--c-text-muted);
  margin-top: 6px;
  margin-bottom: var(--gap-md);
}

/* ===== CHILD SECTION / CARD LIST ===== */
.child-section {
  margin-top: var(--gap-xl);
  padding-top: var(--gap-lg);
  border-top: 1px solid var(--c-border);
}

.child-section h2 {
  margin-bottom: 6px;
}

.card-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--gap-md);
  margin-top: var(--gap-md);
}

.card-list li {
  display: contents;
}

.card {
  background: var(--c-dark2);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: var(--gap-md);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(101,20,255,0.3);
  border-color: var(--c-primary);
}

.card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.card h3 a {
  color: var(--c-white);
}

.card h3 a:hover {
  color: var(--c-accent);
}

.card p {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  line-height: 1.6;
}

.card-date {
  display: block;
  font-size: 0.76rem;
  color: var(--c-text-muted);
  margin-top: var(--gap-xs);
}

/* ===== FAQ BLOCK ===== */
.faq-block {
  margin-top: var(--gap-xl);
  padding-top: var(--gap-lg);
  border-top: 1px solid var(--c-border);
}

.faq-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--gap-sm);
  margin-top: var(--gap-md);
}

.faq-card {
  background: var(--c-dark3);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: var(--gap-sm);
  transition: border-color var(--transition), background var(--transition);
}

.faq-card:hover {
  border-color: var(--c-accent);
  background: rgba(191,0,255,0.08);
}

.faq-card h3 {
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.faq-card h3 a {
  color: var(--c-gray);
}

.faq-card h3 a:hover {
  color: var(--c-accent);
}

.faq-card p {
  font-size: 0.8rem;
  color: var(--c-text-muted);
  line-height: 1.55;
}

.more-link {
  display: inline-block;
  margin-top: var(--gap-md);
  color: var(--c-accent);
  font-weight: 600;
  font-size: 0.95rem;
  transition: letter-spacing var(--transition);
}

.more-link:hover {
  letter-spacing: 0.03em;
  color: var(--c-white);
}

/* ===== CHILD FAQ LIST ===== */
.child-faq-list {
  margin-top: var(--gap-xl);
  padding-top: var(--gap-lg);
  border-top: 1px solid var(--c-border);
}

/* ===== CONTACT & PRIVACY EXTRA BLOCKS ===== */
.contact-links-block,
.privacy-nav-block {
  margin-top: var(--gap-xl);
  padding-top: var(--gap-lg);
  border-top: 1px solid var(--c-border);
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-xs);
  margin-top: var(--gap-sm);
}

/* ===== FOOTER ===== */
.site-footer {
  position: relative;
  z-index: 1;
  background: var(--c-dark2);
  border-top: 1px solid var(--c-border);
  margin-top: var(--gap-xl);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--gap-lg);
  padding: var(--gap-xl) 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.footer-brand-big {
  display: block;
  font-size: clamp(2rem, 5vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, var(--c-primary), var(--c-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
  margin-bottom: var(--gap-sm);
}

.footer-slogan {
  font-size: 0.9rem;
  color: var(--c-text-muted);
  max-width: 320px;
  line-height: 1.6;
}

.footer-col-title {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--c-accent);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.footer-links-block ul,
.footer-contact-block ul {
  margin-top: var(--gap-xs);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-links-block a,
.footer-contact-block a {
  font-size: 0.88rem;
  color: var(--c-text-muted);
  min-height: 36px;
  display: flex;
  align-items: center;
  transition: color var(--transition), padding-left var(--transition);
}

.footer-links-block a:hover,
.footer-contact-block a:hover {
  color: var(--c-white);
  padding-left: 4px;
}

.footer-contact-block address {
  font-style: normal;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--gap-sm) 24px;
  max-width: var(--max-w);
  margin: 0 auto;
  border-top: 1px solid var(--c-border);
  gap: var(--gap-sm);
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--c-text-muted);
}

.footer-bottom nav dl {
  display: flex;
  gap: var(--gap-sm);
  flex-wrap: wrap;
}

.footer-bottom nav dl dt,
.footer-bottom nav dl dd {
  display: contents;
}

.footer-bottom nav dl a {
  font-size: 0.8rem;
  color: var(--c-text-muted);
  min-height: 36px;
  display: flex;
  align-items: center;
}

.footer-bottom nav dl a:hover {
  color: var(--c-accent);
}

/* ===== SCROLL REVEAL ===== */
.card,
.faq-card,
.page-hero-inner {
  opacity: 0;
  transform: translateY(20px);
  animation: revealUp 400ms ease forwards;
}

.card:nth-child(1) { animation-delay: 50ms; }
.card:nth-child(2) { animation-delay: 100ms; }
.card:nth-child(3) { animation-delay: 150ms; }
.card:nth-child(4) { animation-delay: 200ms; }
.card:nth-child(5) { animation-delay: 250ms; }
.card:nth-child(6) { animation-delay: 300ms; }

.page-hero-inner { animation-delay: 100ms; }

@keyframes revealUp {
  to {
    opacity: 1;
    transform: none;
  }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  body::before {
    animation: none;
  }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .content-section {
    flex-direction: column;
    padding: var(--gap-lg) 16px;
    gap: var(--gap-md);
  }

  .content-aside {
    width: 100%;
    position: static;
  }

  .aside-block dl {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }

  .aside-block dl dt,
  .aside-block dl dd {
    flex: none;
  }

  .aside-block dl dt a,
  .aside-block dl dd a {
    padding: 6px 12px;
    background: rgba(101,20,255,0.1);
    border-radius: var(--radius-pill);
    border: 1px solid var(--c-border);
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: var(--gap-md);
    padding: var(--gap-lg) 16px;
  }

  .footer-brand-block {
    grid-column: 1 / -1;
  }
}

@media (max-width: 600px) {
  .brand-row {
    padding: 12px 16px 6px;
  }

  .pill-nav {
    padding: 6px 16px 10px;
    gap: 6px;
  }

  .pill-btn {
    font-size: 0.78rem;
    padding: 8px 12px;
  }

  .hero-content {
    padding: var(--gap-md) 16px;
    max-width: 100%;
    text-align: left;
  }

  .hero-inner {
    justify-content: flex-start;
    align-items: flex-end;
  }

  .page-hero {
    padding: var(--gap-md) 0;
  }

  .page-hero-inner {
    padding: 0 16px;
  }

  .wrap {
    padding: 0 16px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    padding: var(--gap-md) 16px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--gap-sm) 16px;
    gap: 8px;
  }

  .card-list {
    grid-template-columns: 1fr;
  }

  .faq-list {
    grid-template-columns: 1fr;
  }

  h2 {
    font-size: 1.4rem;
  }

  .footer-brand-big {
    font-size: 2.2rem;
  }
}