:root {
  color-scheme: dark;
  --bg: #070a12;
  --bg-2: #0b1020;
  --surface: rgba(15, 21, 36, 0.84);
  --surface-strong: rgba(20, 27, 45, 0.94);
  --surface-hover: rgba(255, 255, 255, 0.075);
  --ink: #f6efe6;
  --muted: #b9c0cc;
  --soft: #7f8795;
  --line: rgba(255, 255, 255, 0.11);
  --line-strong: rgba(240, 190, 120, 0.28);
  --accent: #e0a94f;
  --accent-2: #ffe1a3;
  --accent-dark: #f2bf65;
  --danger: #ff7d7d;
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

html { min-height: 100%; }

body {
  min-height: 100%;
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background:
    radial-gradient(circle at 16% 0%, rgba(224, 169, 79, 0.22) 0, transparent 30%),
    radial-gradient(circle at 85% 12%, rgba(75, 101, 192, 0.20) 0, transparent 28%),
    linear-gradient(145deg, var(--bg) 0%, var(--bg-2) 48%, #111018 100%);
  color: var(--ink);
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
  text-rendering: auto;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 50% 0%, black, transparent 72%);
}

.wrapper {
  width: min(980px, calc(100% - 36px));
  margin: 0 auto;
  padding: clamp(24px, 6vw, 72px) 0 clamp(40px, 8vw, 96px);
}

.card {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--surface-strong), var(--surface));
  border: 1px solid var(--line);
  border-radius: clamp(22px, 4vw, 34px);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  padding: clamp(24px, 5.5vw, 58px);
  backdrop-filter: blur(18px);
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 12% 8%, rgba(255, 216, 145, 0.18), transparent 30%),
    linear-gradient(135deg, rgba(255,255,255,0.08), transparent 28%);
  opacity: 0.9;
}

.card > * { position: relative; z-index: 1; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--accent-2);
  font-weight: 650;
  letter-spacing: 0.01em;
  text-transform: none;
  font-size: clamp(0.92rem, 2.2vw, 1rem);
}

.brand,
.brand-mark {
  font-feature-settings: normal;
  font-variant: normal;
  font-variant-ligatures: none;
  font-kerning: normal;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background:
    radial-gradient(circle at 28% 22%, #fff0c1 0, #e4ad54 34%, #7b471d 100%);
  display: inline-grid;
  place-items: center;
  color: #111018;
  font-weight: 800;
  letter-spacing: 0;
  box-shadow: 0 10px 28px rgba(224, 169, 79, 0.22), inset 0 1px 0 rgba(255,255,255,0.45);
}

h1, h2, h3 {
  line-height: 1.08;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

h1 {
  max-width: 820px;
  font-size: clamp(2.35rem, 8vw, 5.25rem);
  font-weight: 800;
  margin: clamp(28px, 5vw, 46px) 0 18px;
}

h2 {
  font-size: clamp(1.35rem, 3vw, 2rem);
  margin-top: clamp(36px, 6vw, 54px);
  padding-top: 6px;
}

h3 { font-size: 1.12rem; margin-top: 28px; }

p, li { color: var(--muted); }

p { margin: 0 0 16px; }

li { margin: 6px 0; }

strong { color: var(--ink); }

.lead {
  font-size: clamp(1.05rem, 2.5vw, 1.28rem);
  color: #d8dce5;
  max-width: 760px;
}

.meta {
  color: #aab2c1;
  font-size: 0.96rem;
}

.nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(190px, 100%), 1fr));
  gap: 14px;
  margin-top: clamp(28px, 5vw, 44px);
}

.nav a {
  display: block;
  min-height: 132px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255,255,255,0.062), rgba(255,255,255,0.026));
  color: var(--accent-2);
  text-decoration: none;
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.nav a::after {
  content: "→";
  display: inline-block;
  margin-top: 18px;
  color: var(--accent);
  transition: transform 180ms ease;
}

.nav a:hover,
.nav a:focus-visible {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  background: linear-gradient(180deg, rgba(224,169,79,0.13), rgba(255,255,255,0.04));
  box-shadow: 0 16px 36px rgba(0,0,0,0.24), inset 0 1px 0 rgba(255,255,255,0.08);
}

.nav a:hover::after,
.nav a:focus-visible::after { transform: translateX(4px); }

.nav a span {
  display: block;
  color: var(--muted);
  font-weight: 460;
  font-size: 0.96rem;
  line-height: 1.48;
  margin-top: 8px;
}

a {
  color: var(--accent-2);
  text-underline-offset: 0.18em;
}

a:hover { color: #fff0c1; }

a:focus-visible {
  outline: 2px solid rgba(255, 225, 163, 0.75);
  outline-offset: 4px;
  border-radius: 8px;
}

.notice, .todo {
  border-radius: 16px;
  padding: 15px 17px;
}

.notice {
  background: rgba(224, 169, 79, 0.10);
  border: 1px solid rgba(224, 169, 79, 0.24);
  color: #f1d6a3;
  margin: 24px 0;
}

.notice p, .notice strong { color: inherit; }

.todo {
  display: inline-block;
  background: rgba(224, 169, 79, 0.16);
  color: var(--accent-2);
  border: 1px solid rgba(224, 169, 79, 0.32);
  font-weight: 700;
}

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 42px 0;
}

.footer {
  margin-top: clamp(34px, 6vw, 54px);
  color: var(--soft);
  font-size: 0.94rem;
}

article.card {
  max-width: 900px;
}

article.card p,
article.card li {
  font-size: clamp(1rem, 1.8vw, 1.045rem);
}

@media (max-width: 720px) {
  .wrapper {
    width: min(100% - 24px, 980px);
    padding: 18px 0 38px;
  }

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

  .brand { gap: 10px; }
  .brand-mark { width: 36px; height: 36px; border-radius: 12px; }

  h1 { font-size: clamp(2.15rem, 12vw, 3.4rem); }
  h2 { margin-top: 34px; }

  .nav { grid-template-columns: 1fr; gap: 12px; }
  .nav a { min-height: auto; padding: 18px; }
  .nav a::after { margin-top: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

@media print {
  :root {
    color-scheme: light;
    --bg: #ffffff;
    --surface: #ffffff;
    --surface-strong: #ffffff;
    --ink: #111111;
    --muted: #333333;
    --soft: #555555;
    --line: #d8d8d8;
    --accent: #6f470d;
    --accent-2: #6f470d;
  }

  body { background: #ffffff; }
  body::before, .card::before { display: none; }
  .wrapper { width: 100%; padding: 0; }
  .card { border: 0; border-radius: 0; box-shadow: none; padding: 0; }
  .nav { display: none; }
}