:root {
  --nacht: #0B0B0D;      /* premium black, page ground */
  --diep: #151515;       /* deeper charcoal: poster, inputs */
  --perkament: #F0E8D8;  /* warm ivory: text */
  --messing: #CDA75E;    /* engraved brass: lines, CTA */
  --schemer: #B8AD98;    /* muted warm stone: secondary text */
  --rand: rgba(205, 167, 94, 0.28);

  --display: "Gloock", Georgia, serif;
  --body: "Instrument Sans", system-ui, sans-serif;

  --gutter: clamp(16px, 4vw, 56px);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background:
    radial-gradient(1000px 600px at 78% -10%, rgba(205, 167, 94, 0.10) 0%, transparent 62%),
    var(--nacht);
  color: var(--perkament);
  font: 400 1.0625rem/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
:focus-visible { outline: 2px solid var(--messing); outline-offset: 3px; border-radius: 2px; }

.skip {
  position: absolute; left: -999px; top: 8px;
  background: var(--messing); color: var(--diep); padding: 8px 14px;
}
.skip:focus { left: 8px; z-index: 10; }

h1, h2, h3 { font-family: var(--display); font-weight: 400; line-height: 1.08; margin: 0; }
h1 { font-size: clamp(2.6rem, 6.2vw, 5rem); letter-spacing: -0.01em; max-width: 12ch; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.75rem); max-width: 22ch; }
h3 { font-size: 1.5rem; }
p { margin: 0; }

/* ---------- development banner ---------- */
.sr-only {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
.dev-banner {
  background: var(--messing); color: var(--diep);
  overflow: hidden; font-size: 0.875rem; font-weight: 600;
  letter-spacing: 0.04em; text-transform: uppercase;
}
.dev-track { display: flex; width: max-content; animation: dev-scroll 40s linear infinite; }
.dev-banner:hover .dev-track { animation-play-state: paused; }
.dev-group { display: flex; flex-shrink: 0; }
.dev-group span { padding: 9px 18px; white-space: nowrap; }
@keyframes dev-scroll { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .dev-track { animation: none; width: auto; justify-content: center; }
  .dev-group + .dev-group { display: none; }
}

/* ---------- header ---------- */
.top {
  max-width: var(--max); margin: 0 auto;
  padding: 22px var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--display); font-size: 1.4rem; text-decoration: none;
}
.logo img {
  width: 44px; height: 44px; border-radius: 50%;
  box-shadow: 0 0 0 1px var(--rand), 0 4px 18px rgba(205, 167, 94, 0.18);
}
.foot .logo img { width: 56px; height: 56px; }
.top nav { display: flex; gap: 28px; }
.top nav a { text-decoration: none; color: var(--schemer); font-size: 0.95rem; }
.top nav a:hover { color: var(--perkament); }

/* ---------- hero ---------- */
.hero {
  max-width: var(--max); margin: 0 auto;
  padding: clamp(24px, 6vw, 72px) var(--gutter) clamp(64px, 10vw, 128px);
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(32px, 6vw, 88px);
  align-items: center;
}
.lede { margin-top: 24px; max-width: 46ch; color: var(--schemer); font-size: 1.125rem; }

.maker {
  margin-top: 36px;
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 14px;
  max-width: 480px;
}
.maker label { display: grid; gap: 6px; }
.maker span { font-size: 0.875rem; color: var(--schemer); }
.maker input {
  font: 500 1.0625rem var(--body); color: var(--perkament);
  background: var(--diep); border: 1px solid var(--rand); border-radius: 10px;
  padding: 13px 14px; min-height: 50px; width: 100%;
  color-scheme: dark;
}
.maker input:focus { outline: none; border-color: var(--messing); box-shadow: 0 0 0 3px rgba(205,167,94,.18); }

.verdict { margin-top: 18px; min-height: 1.6em; font-size: 1rem; }
.verdict b { font-weight: 600; color: var(--messing); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  margin-top: 26px; padding: 15px 26px; min-height: 50px;
  background: var(--messing); color: var(--diep);
  font: 600 1rem var(--body); text-decoration: none;
  border-radius: 999px;
  transition: background-color .2s, transform .2s;
}
.btn:hover { background: #E0BD75; }
.btn:active { transform: translateY(1px); }
.btn-small { margin-top: 18px; padding: 11px 20px; min-height: 44px; font-size: 0.95rem; }

.hero-poster { margin: 0; }
.frame {
  padding: 14px;
  background: linear-gradient(160deg, #24211B, #111111);
  border-radius: 4px;
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .7), 0 0 0 1px rgba(255,255,255,.04);
  max-width: 460px; margin-left: auto;
}
.frame svg { display: block; width: 100%; height: auto; }
.hero-poster figcaption { margin-top: 14px; font-size: 0.875rem; color: var(--schemer); text-align: right; }

/* constellation draw-in: the page's one orchestrated motion */
.c-line { stroke-dasharray: var(--len); stroke-dashoffset: var(--len); animation: draw .9s ease-out forwards; animation-delay: calc(var(--i) * 70ms + 150ms); }
.c-star { opacity: 0; animation: appear .5s ease-out forwards; animation-delay: calc(var(--i) * 50ms); }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes appear { to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .c-line, .c-star { animation: none; stroke-dashoffset: 0; opacity: 1; }
}

/* ---------- section scaffolding ---------- */
.designs, .steps, .signs, .faq {
  max-width: var(--max); margin: 0 auto;
  padding: clamp(56px, 8vw, 104px) var(--gutter);
}
.section-head { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 64px; align-items: end; margin-bottom: 48px; }
.section-head p { color: var(--schemer); max-width: 44ch; }

/* ---------- designs ---------- */
.designs { border-top: 1px solid var(--rand); }
.design-row {
  display: grid; grid-template-columns: 1.15fr 1.15fr 0.7fr; gap: clamp(20px, 3vw, 40px);
  align-items: end;
}
.design { display: flex; flex-direction: column; }
.design-art { display: grid; place-items: end center; }
.design-art svg { display: block; width: 100%; height: auto; }
.design-poster .design-art svg { box-shadow: 0 24px 50px -24px rgba(0,0,0,.8); }
.design-chart .design-art svg { border-radius: 50%; box-shadow: 0 24px 50px -24px rgba(0,0,0,.8); }
.design-phone .design-art svg {
  border-radius: 28px; border: 6px solid #1B1B20;
  box-shadow: 0 24px 50px -24px rgba(0,0,0,.8);
}
.design-info { margin-top: 24px; }
.design-info p { margin-top: 8px; color: var(--schemer); font-size: 0.975rem; max-width: 34ch; }

/* ---------- steps (a real sequence, so numbered) ---------- */
.steps h2 { margin-bottom: 40px; }
.steps ol {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px;
  counter-reset: step;
}
.steps li { counter-increment: step; color: var(--schemer); padding-top: 20px; border-top: 1px solid var(--rand); }
.steps li::before {
  content: counter(step); display: block;
  font-family: var(--display); font-size: 2.5rem; line-height: 1; color: var(--messing); margin-bottom: 14px;
}
.steps strong { display: block; color: var(--perkament); font-weight: 600; margin-bottom: 4px; }

/* ---------- signs ---------- */
.sign-grid {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 1px;
  background: var(--rand); border: 1px solid var(--rand); border-radius: 14px; overflow: hidden;
}
.sign-grid button {
  all: unset; box-sizing: border-box; cursor: pointer;
  display: grid; gap: 4px; width: 100%; height: 100%;
  padding: 18px 16px 16px; background: var(--nacht);
  transition: background-color .2s;
}
.sign-grid button:hover { background: #201D17; }
.sign-grid button:focus-visible { outline-offset: -3px; }
.sign-grid button[aria-pressed="true"] { background: #2A2418; }
.sign-grid button[aria-pressed="true"] .s-name { color: var(--messing); }
.sign-grid svg { width: 100%; aspect-ratio: 1; margin-bottom: 6px; }
.s-name { font-family: var(--display); font-size: 1.2rem; }
.s-dates { font-size: 0.8rem; color: var(--schemer); }

/* ---------- faq ---------- */
.faq > * { max-width: 820px; }
.faq h2 { margin-bottom: 28px; }
.faq details { border-top: 1px solid var(--rand); }
.faq details:last-of-type { border-bottom: 1px solid var(--rand); }
.faq summary {
  cursor: pointer; list-style: none; padding: 20px 36px 20px 0; position: relative;
  font-size: 1.125rem; font-weight: 500;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 6px; top: 50%; width: 10px; height: 10px;
  border-right: 1.5px solid var(--messing); border-bottom: 1.5px solid var(--messing);
  transform: translateY(-70%) rotate(45deg); transition: transform .2s;
}
.faq details[open] summary::after { transform: translateY(-30%) rotate(225deg); }
.faq details p { padding: 0 0 22px; color: var(--schemer); max-width: 62ch; }

/* ---------- footer ---------- */
.foot {
  max-width: var(--max); margin: 0 auto;
  padding: 40px var(--gutter) 56px;
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  color: var(--schemer); font-size: 0.95rem; border-top: 1px solid var(--rand);
}
.foot .logo { color: var(--perkament); }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; }
  .frame { margin: 0 auto; max-width: 420px; }
  .hero-poster figcaption { text-align: center; }
  .section-head { grid-template-columns: 1fr; }
  .design-row { grid-template-columns: 1fr 1fr; }
  .design-phone { grid-column: span 2; flex-direction: row; gap: 24px; align-items: center; }
  .design-phone .design-art { width: 38%; flex: none; }
  .design-phone .design-info { margin-top: 0; }
  .sign-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 640px) {
  .top nav { display: none; }
  .maker { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .btn-small { width: auto; }
  .design-row { grid-template-columns: 1fr; gap: 56px; }
  .design-phone { grid-column: auto; }
  .design-chart .design-art svg { max-width: 360px; margin: 0 auto; }
  .steps ol { grid-template-columns: 1fr; gap: 24px; }
  .sign-grid { grid-template-columns: repeat(3, 1fr); }
  .sign-grid button { padding: 14px 10px 12px; }
  .s-name { font-size: 1.05rem; }
}

.link {
  all: unset; cursor: pointer; margin-left: 6px;
  color: var(--schemer); text-decoration: underline; text-underline-offset: 3px;
}
.link:hover { color: var(--perkament); }