/* ==========================================================================
   OBSIDIAN — private members' club
   Design system: charcoal, warm ivory, champagne gold. Quiet and measured.
   ========================================================================== */

:root {
  --ink: #0a0a0d;
  --ink-soft: #0f0f14;
  --ink-raised: #14141a;
  --ink-line: rgba(240, 235, 220, 0.1);
  --ink-line-soft: rgba(240, 235, 220, 0.06);

  --paper: #f4f1ea;
  --paper-soft: #cfcac0;
  --muted: #a49f95;
  --dim: #77726a;

  --gold: #c8a96a;
  --gold-strong: #d9bd82;
  --gold-deep: #8a6d3b;
  --ember: #e4592b;

  --r-sm: 4px;
  --r-md: 8px;
  --r-pill: 999px;

  --shell: 1180px;
  --gutter: 28px;
  --header-h: 76px;

  --font-display: "Iowan Old Style", "Palatino Linotype", "Source Han Serif SC", "Songti SC", "Noto Serif CJK SC", Georgia, serif;
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans", "Microsoft YaHei", Roboto, sans-serif;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur: 220ms;
}

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

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--paper);
}

p { margin: 0; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; padding: 0; cursor: pointer; }

::selection { background: var(--gold); color: #16120a; }

:focus-visible {
  outline: 2px solid var(--gold-strong);
  outline-offset: 3px;
  border-radius: 2px;
}

/* Layout -------------------------------------------------------------------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.shell--narrow { max-width: 820px; }

.band { padding: clamp(72px, 9vw, 128px) 0; }
section[id] { scroll-margin-top: 92px; }
.band--raised {
  background: linear-gradient(180deg, var(--ink), var(--ink-raised) 60%, var(--ink));
  border-block: 1px solid var(--ink-line-soft);
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--gold); color: #16120a; padding: 10px 16px;
  border-radius: 0 0 var(--r-sm) 0; font-size: 0.85rem; font-weight: 600;
}
.skip-link:focus { left: 0; }

/* Header --------------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 90;
  background: rgba(10, 10, 13, 0.82);
  backdrop-filter: saturate(140%) blur(16px);
  border-bottom: 1px solid var(--ink-line-soft);
}
.site-header__inner {
  display: flex; align-items: center; gap: 40px;
  min-height: var(--header-h);
}

.brand { display: inline-flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.brand__mark { width: 30px; height: 30px; }
.brand__mark svg { width: 100%; height: 100%; }
.brand__word { display: flex; flex-direction: column; line-height: 1; }
.brand__word strong {
  font-family: var(--font-ui); font-size: 0.9rem; font-weight: 600;
  letter-spacing: 0.32em;
}
.brand__word em {
  font-style: normal; font-size: 0.64rem; letter-spacing: 0.24em;
  color: var(--gold); margin-top: 6px;
}

.site-nav { display: flex; align-items: center; gap: 30px; font-size: 0.86rem; letter-spacing: 0.04em; color: var(--paper-soft); }
.site-nav a { position: relative; padding: 6px 0; }
.site-nav a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0; height: 1px;
  background: var(--gold); transition: right var(--dur) var(--ease);
}
.site-nav a:hover { color: var(--paper); }
.site-nav a:hover::after { right: 0; }

.site-header__actions { display: flex; align-items: center; gap: 14px; margin-left: auto; }

.lang-toggle {
  padding: 9px 13px; border: 1px solid var(--ink-line); border-radius: var(--r-pill);
  font-size: 0.74rem; letter-spacing: 0.1em; color: var(--paper-soft);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.lang-toggle:hover { border-color: var(--gold); color: var(--paper); }

.nav-toggle { display: none; width: 40px; height: 40px; place-items: center; }
.nav-toggle__bars { display: grid; gap: 5px; width: 18px; }
.nav-toggle__bars i { display: block; height: 1.5px; background: var(--paper); transition: transform var(--dur) var(--ease); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:first-child { transform: translateY(3.2px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:last-child { transform: translateY(-3.2px) rotate(-45deg); }

.mobile-nav { display: none; border-top: 1px solid var(--ink-line-soft); background: var(--ink-soft); }
.mobile-nav__inner { display: grid; gap: 2px; padding-block: 12px 24px; }
.mobile-nav a { padding: 13px 0; border-bottom: 1px solid var(--ink-line-soft); font-size: 0.98rem; }

/* Buttons -------------------------------------------------------------------- */
.button {
  --bg: transparent; --fg: var(--paper); --border: var(--ink-line);
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 28px; background: var(--bg); color: var(--fg);
  border: 1px solid var(--border); border-radius: var(--r-pill);
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase;
  line-height: 1; transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.button:hover { transform: translateY(-1px); }
.button--gold { --bg: var(--gold); --fg: #16120a; --border: var(--gold); }
.button--gold:hover { --bg: var(--gold-strong); --border: var(--gold-strong); }
.button--compact { padding: 10px 20px; font-size: 0.74rem; }
.button--block { width: 100%; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--paper); border-bottom: 1px solid var(--ink-line); padding-bottom: 5px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.link-arrow::after { content: "\2192"; transition: transform var(--dur) var(--ease); }
.link-arrow:hover { color: var(--gold-strong); border-color: var(--gold); }
.link-arrow:hover::after { transform: translateX(3px); }

/* Type ------------------------------------------------------------------------ */
.eyebrow {
  font-size: 0.7rem; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--gold); margin: 0;
}

/* Hero ------------------------------------------------------------------------ */
.hero {
  position: relative; overflow: hidden;
  min-height: min(92vh, 820px); display: grid; align-items: center;
}
.hero__glow {
  position: absolute; left: 50%; top: 44%; width: min(860px, 92vw); aspect-ratio: 1;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(200, 169, 106, 0.16), transparent 66%);
  pointer-events: none;
}
.hero__inner { position: relative; max-width: 900px; }
.hero__title { font-size: clamp(2.7rem, 6.4vw, 5.2rem); line-height: 1.06; margin-top: 30px; }
.hero__title em { font-style: italic; color: var(--gold-strong); }
.hero__lead { margin-top: 32px; max-width: 56ch; color: var(--paper-soft); font-size: 1.06rem; line-height: 1.9; }
.hero__actions { margin-top: 44px; display: flex; align-items: center; gap: 34px; flex-wrap: wrap; }
.hero__note { margin-top: 30px; font-size: 0.78rem; letter-spacing: 0.08em; color: var(--dim); }

/* Section head ----------------------------------------------------------------- */
.section-head { max-width: 720px; }
.section-head__title { font-size: clamp(1.85rem, 3.4vw, 2.9rem); line-height: 1.16; margin-top: 22px; }
.section-head__text { margin-top: 20px; color: var(--muted); max-width: 58ch; font-size: 1rem; }

/* Pillars ---------------------------------------------------------------------- */
.pillar-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 48px; margin-top: 64px; }
.pillar { padding-top: 28px; border-top: 1px solid var(--ink-line); }
.pillar__index { font-family: var(--font-display); font-size: 1.05rem; color: var(--gold); }
.pillar h3 { font-family: var(--font-ui); font-size: 1.02rem; font-weight: 600; letter-spacing: 0.12em; margin-top: 18px; }
.pillar p { margin-top: 14px; color: var(--muted); font-size: 0.96rem; line-height: 1.9; }

/* Tiers ------------------------------------------------------------------------ */
.tier-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 64px; }
.tier {
  padding: 38px 34px; border: 1px solid var(--ink-line); border-radius: var(--r-md);
  background: var(--ink-soft);
}
.tier--featured {
  background: linear-gradient(180deg, rgba(200, 169, 106, 0.08), var(--ink-soft) 58%);
  border-color: rgba(200, 169, 106, 0.34);
}
.tier__name { font-family: var(--font-display); font-size: 1.35rem; }
.tier__latin { font-size: 0.7rem; letter-spacing: 0.26em; color: var(--gold); margin-top: 8px; }
.tier ul { margin-top: 28px; display: grid; gap: 14px; }
.tier li { display: grid; grid-template-columns: 14px 1fr; gap: 12px; color: var(--paper-soft); font-size: 0.92rem; }
.tier li::before { content: "\2014"; color: var(--gold-deep); }

/* Salons ------------------------------------------------------------------------ */
.salon-list { margin-top: 56px; border-top: 1px solid var(--ink-line); }
.salon {
  display: grid; grid-template-columns: 64px 1fr auto; gap: 28px; align-items: baseline;
  padding: 32px 0; border-bottom: 1px solid var(--ink-line);
}
.salon__no { font-family: var(--font-display); color: var(--gold); font-size: 1rem; }
.salon h3 { font-size: 1.25rem; }
.salon p { margin-top: 10px; color: var(--muted); font-size: 0.94rem; max-width: 56ch; }
.salon__meta { font-size: 0.74rem; letter-spacing: 0.06em; color: var(--dim); white-space: nowrap; }

/* Admission ---------------------------------------------------------------------- */
.admission { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 72px; align-items: start; }
.admission__intro .section-head__title { margin-bottom: 24px; }
.admission__intro > p:last-child { color: var(--muted); line-height: 1.95; }

.application { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 20px; }
.field { display: grid; gap: 9px; }
.field--wide { grid-column: 1 / -1; }
.field__label {
  font-size: 0.72rem; letter-spacing: 0.12em; color: var(--muted);
}
.field__label .optional { color: var(--dim); }
.field__control {
  width: 100%; padding: 13px 15px; background: var(--ink-soft);
  border: 1px solid var(--ink-line); border-radius: var(--r-sm);
  font-size: 0.95rem; transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.field__control::placeholder { color: var(--dim); }
.field__control:focus { outline: none; border-color: var(--gold); background: var(--ink-raised); }
textarea.field__control { resize: vertical; }

.consent { display: flex; gap: 12px; align-items: flex-start; font-size: 0.84rem; color: var(--muted); cursor: pointer; }
.consent input { accent-color: var(--gold); width: 16px; height: 16px; margin-top: 3px; flex: 0 0 auto; }
.consent a { color: var(--gold-strong); border-bottom: 1px solid var(--gold-deep); }

.form-status { grid-column: 1 / -1; min-height: 1.2em; font-size: 0.86rem; }
.form-status[data-ok="true"] { color: #8fb98f; }
.form-status[data-ok="false"] { color: #d48a7f; }

.honeypot {
  position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden;
}

.form-alt {
  grid-column: 1 / -1; font-size: 0.82rem; color: var(--dim); line-height: 1.8;
}
.form-alt a { color: var(--gold-strong); border-bottom: 1px solid var(--gold-deep); }

.build { color: var(--dim); opacity: 0.55; }

/* Rules --------------------------------------------------------------------------- */
.rules { margin-top: 40px; border-top: 1px solid var(--ink-line); }
.rules__row { display: grid; grid-template-columns: 140px 1fr; gap: 40px; padding: 28px 0; border-bottom: 1px solid var(--ink-line); }
.rules__row dt { color: var(--gold); font-family: var(--font-display); font-size: 1.02rem; }
.rules__row dd { margin: 0; color: var(--paper-soft); line-height: 1.9; }

/* Footer -------------------------------------------------------------------------- */
.site-footer { border-top: 1px solid var(--ink-line); background: var(--ink-soft); padding: 64px 0 40px; }
.site-footer__inner { display: grid; gap: 34px; }
.brand--footer .brand__word strong { font-size: 0.95rem; }
.brand--footer p { margin-top: 18px; color: var(--muted); font-size: 0.92rem; }
.site-footer__meta { display: flex; gap: 36px; flex-wrap: wrap; color: var(--paper-soft); font-size: 0.92rem; }
.site-footer__meta a:hover { color: var(--gold-strong); }
.site-footer__legal {
  display: flex; gap: 10px; flex-wrap: wrap; color: var(--dim);
  font-size: 0.78rem; padding-top: 24px; border-top: 1px solid var(--ink-line-soft);
}

/* Reveal -------------------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(16px); }
.reveal.is-visible { opacity: 1; transform: none; transition: opacity 760ms var(--ease), transform 760ms var(--ease); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* Responsive ----------------------------------------------------------------------- */
@media (max-width: 960px) {
  .site-nav { display: none; }
  .nav-toggle { display: grid; }
  .mobile-nav { display: block; }
  .mobile-nav[hidden] { display: none; }
  .pillar-grid, .tier-grid { grid-template-columns: 1fr; gap: 20px; }
  .tier { padding: 32px 28px; }
  .admission { grid-template-columns: 1fr; gap: 48px; }
  .salon { grid-template-columns: 44px 1fr; }
  .salon__meta { grid-column: 2; }
  .rules__row { grid-template-columns: 1fr; gap: 8px; }
}

@media (max-width: 640px) {
  :root { --gutter: 20px; --header-h: 66px; }
  .band { padding: 64px 0; }
  .site-header__inner { gap: 18px; }
  .site-header__actions { gap: 8px; }
  .brand__word strong { font-size: 0.78rem; letter-spacing: 0.22em; }
  .brand__word em { font-size: 0.58rem; }
  .site-header__actions .button { display: none; }
  .application { grid-template-columns: 1fr; }
  .field--wide { grid-column: auto; }
  .hero__actions { gap: 24px; }
  .site-footer__meta { gap: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}