@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600&family=Cormorant+Garamond:ital,wght@0,300;0,500;0,700;1,300;1,500&family=Crimson+Pro:ital,wght@0,300;0,400;0,600;1,300;1,400&display=swap');

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

:root {
  --ink: #261717;
  --ink-deep: #180e0e;
  --red: #ff0000;
  --violet: #8b00ff;
  --paper: #f7efe9;
  --dim: rgba(247, 239, 233, 0.7);
  --faint: rgba(247, 239, 233, 0.48);
  --glass: rgba(255, 255, 255, 0.075);
  --glass-2: rgba(255, 255, 255, 0.13);
  --line: rgba(255, 255, 255, 0.18);
  --line-soft: rgba(255, 255, 255, 0.1);
  --r: 28px;
  --serif: 'Cormorant Garamond', 'Crimson Pro', Georgia, 'Songti SC', 'Noto Serif SC', serif;
  --body: 'Crimson Pro', Georgia, 'Songti SC', 'Noto Serif SC', serif;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.78;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(58vw 52vh at 82% 2%, rgba(139, 0, 255, 0.32), transparent 66%),
    radial-gradient(64vw 48vh at 4% 26%, rgba(255, 0, 0, 0.2), transparent 64%),
    radial-gradient(72vw 60vh at 46% 102%, rgba(139, 0, 255, 0.16), transparent 72%);
}

img { max-width: 100%; }

a { color: var(--paper); }

/* ---------- top ---------- */
.top {
  position: sticky;
  top: 0;
  z-index: 60;
  background: linear-gradient(180deg, rgba(24, 14, 14, 0.92), rgba(38, 23, 23, 0.6));
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-soft);
}

.bar {
  display: flex;
  align-items: center;
  padding: 10px clamp(14px, 4vw, 38px) 2px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  min-height: 44px;
  text-decoration: none;
  color: var(--paper);
}

.brand-txt {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 500;
  letter-spacing: 0.16em;
}

.mark {
  width: 30px;
  height: 30px;
  flex: none;
  border-radius: 10px;
  object-fit: contain;
  background: linear-gradient(145deg, rgba(255, 0, 0, 0.55), rgba(139, 0, 255, 0.5));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.28), 0 6px 18px rgba(0, 0, 0, 0.4);
}

.bar-menu {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 0 clamp(14px, 4vw, 38px) 10px;
}

.drawer { position: relative; }

.drawer > summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  font-size: 16px;
  letter-spacing: 0.18em;
  color: var(--dim);
}

.drawer > summary::-webkit-details-marker { display: none; }

.drawer > summary::after {
  content: '';
  width: 15px;
  height: 9px;
  border-top: 2px solid var(--red);
  border-bottom: 2px solid var(--violet);
  opacity: 0.9;
}

.drawer[open] > summary {
  color: var(--paper);
  background: var(--glass-2);
}

.menu {
  list-style: none;
  margin: 10px 0 0;
  padding: 8px;
  display: none;
  position: absolute;
  left: 0;
  top: 100%;
  z-index: 70;
  min-width: 232px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(30, 18, 18, 0.86);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
}

.drawer[open] .menu { display: grid; gap: 2px; }

.menu a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: 14px;
  text-decoration: none;
  color: var(--dim);
  font-size: 16px;
  letter-spacing: 0.04em;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.menu a:hover,
.menu a:focus-visible {
  background: rgba(255, 0, 0, 0.16);
  color: #fff;
  transform: translateX(3px);
}

.cta {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 20px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 16px;
  letter-spacing: 0.12em;
  color: #fff;
  background: linear-gradient(120deg, rgba(255, 0, 0, 0.9), rgba(139, 0, 255, 0.85));
  box-shadow: 0 10px 28px rgba(255, 0, 0, 0.22), inset 0 0 0 1px rgba(255, 255, 255, 0.22);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.cta:hover,
.cta:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 16px 36px rgba(139, 0, 255, 0.32), inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: clamp(96px, 16vh, 168px) clamp(16px, 5vw, 48px) clamp(72px, 12vh, 120px);
  overflow: hidden;
  border-radius: 0 0 46% 46% / 0 0 92px 92px;
  background: radial-gradient(80% 70% at 50% 0%, rgba(139, 0, 255, 0.28), transparent 70%), var(--ink-deep);
}

.hero-img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
  filter: contrast(1.14) saturate(0.85);
}

.hero-dots {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: radial-gradient(rgba(255, 255, 255, 0.22) 1px, transparent 1px);
  background-size: 23px 23px;
  opacity: 0.45;
  -webkit-mask-image: radial-gradient(85% 70% at 50% 40%, #000 30%, transparent 82%);
  mask-image: radial-gradient(85% 70% at 50% 40%, #000 30%, transparent 82%);
}

.hero-card {
  max-width: 780px;
  text-align: center;
  padding: clamp(24px, 4vw, 46px) clamp(18px, 4vw, 46px);
  border-radius: var(--r);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.085);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28), 0 40px 90px rgba(0, 0, 0, 0.5);
  animation: rise 0.85s cubic-bezier(0.2, 0.7, 0.25, 1) both;
}

.hero-card h1 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(2.1rem, 7.2vw, 4.5rem);
  line-height: 1.1;
  letter-spacing: 0.012em;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.55);
}

.lede {
  margin: 18px auto 0;
  max-width: 52ch;
  color: var(--dim);
  font-size: 17px;
  line-height: 1.72;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(26px) scale(0.985); }
  to { opacity: 1; transform: none; }
}

/* ---------- stage ---------- */
.stage {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 264px minmax(0, 1fr);
  gap: clamp(18px, 3vw, 38px);
  align-items: start;
  max-width: 1240px;
  margin: 0 auto;
  padding: clamp(30px, 5vw, 64px) clamp(14px, 4vw, 32px) 70px;
}

.rail {
  position: sticky;
  top: 124px;
  display: grid;
  gap: 16px;
  min-width: 0;
}

.rail-card {
  border-radius: var(--r);
  border: 1px solid var(--line-soft);
  background: var(--glass);
  -webkit-backdrop-filter: blur(15px);
  backdrop-filter: blur(15px);
  padding: 16px 16px 18px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16);
}

.rail-h {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.28em;
  color: var(--faint);
}

.rail-h span {
  display: inline-block;
  padding-bottom: 5px;
  border-bottom: 1px solid var(--red);
}

.rail-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: idx;
}

.rail-nav li { counter-increment: idx; }

.rail-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 4px;
  text-decoration: none;
  color: var(--dim);
  font-size: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  transition: color 0.18s ease, padding-left 0.18s ease;
}

.rail-nav a::before {
  content: counter(idx, decimal-leading-zero);
  font-family: var(--serif);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: rgba(255, 0, 0, 0.8);
}

.rail-nav li:last-child a { border-bottom: 0; }

.rail-nav a:hover,
.rail-nav a:focus-visible {
  color: #fff;
  padding-left: 9px;
}

.to-top {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 16px;
  text-decoration: none;
  font-size: 16px;
  letter-spacing: 0.16em;
  color: var(--paper);
  background: rgba(139, 0, 255, 0.22);
  border: 1px solid rgba(139, 0, 255, 0.42);
  transition: background 0.18s ease, transform 0.18s ease;
}

.to-top:hover,
.to-top:focus-visible {
  background: rgba(255, 0, 0, 0.28);
  border-color: rgba(255, 0, 0, 0.5);
  transform: translateY(-2px);
}

.wrap { min-width: 0; }

.paper {
  display: block;
  max-width: 860px;
  padding: clamp(20px, 3.4vw, 46px);
  border-radius: var(--r);
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.055);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 30px 70px rgba(0, 0, 0, 0.35);
}

.prose { display: block; }

.prose > article {
  scroll-margin-top: 132px;
}

.prose > article + article {
  margin-top: clamp(34px, 5vw, 58px);
  padding-top: clamp(30px, 4.5vw, 50px);
  border-top: 1px solid var(--line-soft);
}

.prose h2,
.prose h3 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.22;
  margin: 0 0 14px;
  letter-spacing: 0.012em;
}

.prose h2 { font-size: clamp(1.55rem, 4.2vw, 2.15rem); }

.prose h3 { font-size: clamp(1.2rem, 3.4vw, 1.5rem); color: var(--dim); }

.prose h2 > span,
.prose h3 > span {
  position: relative;
  display: inline-block;
}

.prose h2 > span::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: -7px;
  width: 34px;
  height: 2px;
  background: linear-gradient(90deg, var(--red), var(--violet));
}

.prose p {
  margin: 0 0 1.05em;
  color: rgba(247, 239, 233, 0.9);
}

.prose a {
  color: #ff6b6b;
  text-decoration-color: rgba(255, 107, 107, 0.45);
  text-underline-offset: 3px;
}

.prose a:hover { color: #fff; text-decoration-color: var(--violet); }

.prose strong { color: #fff; font-weight: 600; }

.prose blockquote {
  margin: 1.4em 0;
  padding: 14px 20px;
  border-left: 2px solid var(--violet);
  border-radius: 0 18px 18px 0;
  background: rgba(139, 0, 255, 0.12);
  color: var(--dim);
}

.prose ul,
.prose ol {
  margin: 0 0 1.1em;
  padding-left: 1.35em;
}

.prose li { margin-bottom: 0.42em; }

.prose img {
  border-radius: 18px;
  height: auto;
}

.prose time {
  display: inline-block;
  font-family: var(--serif);
  letter-spacing: 0.08em;
  color: var(--faint);
}

/* ---------- footer ---------- */
.foot {
  position: relative;
  z-index: 1;
  margin-top: 40px;
  padding: clamp(34px, 5vw, 62px) clamp(16px, 4vw, 38px) 26px;
  background: rgba(18, 10, 10, 0.55);
  border-top: 1px solid var(--line-soft);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.foot-cols {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 3vw, 34px);
  max-width: 1240px;
  margin: 0 auto;
}

.foot dl { margin: 0; }

.foot dt {
  font-family: var(--serif);
  font-size: 16px;
  letter-spacing: 0.26em;
  color: rgba(255, 0, 0, 0.78);
  margin-bottom: 6px;
}

.foot dd { margin: 0; }

.foot dd a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  text-decoration: none;
  color: var(--dim);
  font-size: 16px;
  transition: color 0.16s ease, transform 0.16s ease;
}

.foot dd a:hover,
.foot dd a:focus-visible {
  color: #fff;
  transform: translateX(3px);
}

.foot-brand {
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: 0.12em;
  color: var(--paper);
  padding-top: 9px;
}

.copy {
  max-width: 1240px;
  margin: 26px auto 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 16px;
  letter-spacing: 0.14em;
  color: var(--faint);
}

/* ---------- reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 0.7, 0.3, 1);
}

.reveal.in {
  opacity: 1;
  transform: none;
}

/* ---------- desktop menu ---------- */
@media (min-width: 960px) {
  .drawer > summary { display: none; }

  .menu {
    display: flex;
    gap: 2px;
    position: static;
    padding: 0;
    margin: 0;
    min-width: 0;
    border: 0;
    background: none;
    box-shadow: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .drawer[open] .menu { display: flex; }

  .menu a { padding: 0 13px; color: var(--faint); }
}

/* ---------- tablet / mobile ---------- */
@media (max-width: 959px) {
  .stage {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
  }

  .rail {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .rail-card { padding: 12px 14px 14px; border-radius: 22px; }

  .rail-nav a { min-height: 42px; font-size: 16px; }

  .paper { max-width: none; }
}

@media (max-width: 640px) {
  body { font-size: 17px; }

  .hero {
    border-radius: 0 0 34% 34% / 0 0 60px 60px;
    padding-top: clamp(84px, 14vh, 120px);
  }

  .hero-card { padding: 22px 18px; }

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

  .copy { margin-top: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .reveal { opacity: 1; transform: none; transition: none; }

  .hero-card { animation: none; }

  .menu a,
  .cta,
  .rail-nav a,
  .foot dd a,
  .to-top { transition: none; }
}

button[aria-expanded]{min-width:44px;min-height:44px}