/* ───────────────────────────────────────────────────────────────────────────
   Signets — teaser styles. Dark, committed teal accent.
   No build step; plain CSS custom properties.
   ─────────────────────────────────────────────────────────────────────────── */
:root {
  --accent: #2ba39a;
  --accent-soft: #6fc8bf;

  --bg: #0b0a09;
  --bg-2: #0e1110;
  --panel: rgba(255,255,255,0.035);
  --panel-bd: rgba(255,255,255,0.09);
  --fg: #f4f1ec;
  --fg-soft: #b9b2a7;
  --fg-mute: #7c756a;
  --input-bg: rgba(255,255,255,0.04);
  --shadow: 0 24px 60px -20px rgba(0,0,0,0.7);

  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Hanken Grotesk", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { background: var(--bg); }

.page {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  background:
    radial-gradient(120% 80% at 50% -10%, color-mix(in oklab, var(--accent) 12%, transparent), transparent 55%),
    radial-gradient(100% 60% at 50% 110%, var(--bg-2), var(--bg) 60%);
  color: var(--fg);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: clamp(20px, 4vw, 40px);
  overflow: hidden;
}

.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 50;
  opacity: 0.5; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.4'/%3E%3C/svg%3E");
}

/* ── TOP BAR ── */
.topbar {
  width: 100%; max-width: 920px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.wordmark { display: flex; align-items: center; gap: 10px; }
.wordmark__tx { font-family: var(--font-display); font-weight: 600; font-size: 19px; letter-spacing: -0.01em; }
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12.5px; letter-spacing: 0.02em; color: var(--fg-soft);
  padding: 6px 12px; border-radius: 999px;
  background: var(--panel); border: 1px solid var(--panel-bd);
  backdrop-filter: blur(8px); white-space: nowrap;
}
.pill__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.pill__sep { opacity: 0.5; }
.mono { font-family: var(--font-mono); }

@media (prefers-reduced-motion: no-preference) {
  .pill__dot { animation: ping 2.6s ease-out infinite; }
  @keyframes ping {
    0% { box-shadow: 0 0 0 0 color-mix(in oklab, var(--accent) 60%, transparent); }
    70%, 100% { box-shadow: 0 0 0 7px transparent; }
  }
}

/* ── HERO ── */
.hero {
  flex: 1; width: 100%; max-width: 660px;
  display: flex; flex-direction: column; align-items: center; text-align: center;
  justify-content: center; gap: 22px;
  padding: clamp(28px, 6vh, 64px) 0;
}
.hero__seal { margin-bottom: 4px; }

.headline {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(40px, 8.5vw, 76px); line-height: 0.98;
  letter-spacing: -0.035em; margin: 0; text-wrap: balance;
}
.headline__accent {
  background: linear-gradient(180deg, var(--accent-soft), var(--accent));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

.lede { display: flex; flex-direction: column; align-items: center; gap: 11px; }
.subhead {
  font-size: clamp(16px, 2.4vw, 19px); line-height: 1.55; color: var(--fg-soft);
  max-width: 30em; margin: 0; text-wrap: pretty;
}
.subhead em { font-style: italic; color: var(--fg); }
.subhead2 {
  font-size: clamp(13.5px, 1.9vw, 15.5px); line-height: 1.5; color: var(--fg-mute);
  max-width: 30em; margin: 0; text-wrap: pretty;
}

/* ── EMAIL CAPTURE ── */
.capture { width: 100%; max-width: 460px; margin-top: 6px; }
.capture[hidden] { display: none; }
.capture__row {
  display: flex; gap: 8px;
  background: var(--input-bg); border: 1px solid var(--panel-bd);
  border-radius: 14px; padding: 6px; box-shadow: var(--shadow);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.capture__row:focus-within {
  border-color: color-mix(in oklab, var(--accent) 60%, var(--panel-bd));
  box-shadow: var(--shadow), 0 0 0 4px color-mix(in oklab, var(--accent) 16%, transparent);
}
.capture__input {
  flex: 1; min-width: 0; background: transparent; border: none; outline: none;
  color: var(--fg); font-family: var(--font-body); font-size: 16px; padding: 0 12px;
}
.capture__input::placeholder { color: var(--fg-mute); }
.capture__input.is-error { color: #ff7a85; }
.capture__input:disabled { opacity: 0.6; }

.btn {
  flex-shrink: 0; display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-body); font-weight: 600; font-size: 15px; color: #06201d;
  background: linear-gradient(180deg, var(--accent-soft), var(--accent));
  border: none; border-radius: 9px; padding: 0 18px; height: 44px;
  cursor: pointer; white-space: nowrap;
  transition: transform 0.12s ease, filter 0.2s ease;
  box-shadow: 0 6px 18px -6px color-mix(in oklab, var(--accent) 60%, transparent);
}
.btn:hover { filter: brightness(1.06); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.7; cursor: default; transform: none; filter: none; }
.btn svg { display: block; }

.capture__note { font-size: 13px; color: var(--fg-mute); margin: 12px 2px 0; text-align: center; }
.capture__note.is-error { color: #ff7a85; }

.success {
  display: flex; align-items: center; gap: 14px; text-align: left;
  background: var(--panel); border: 1px solid var(--panel-bd);
  border-radius: 14px; padding: 16px 18px; box-shadow: var(--shadow);
  width: 100%; max-width: 460px; margin-top: 6px;
}
.success[hidden] { display: none; }
@media (prefers-reduced-motion: no-preference) {
  .success:not([hidden]) { animation: pop 0.45s cubic-bezier(0.2,0.9,0.3,1.2); }
  @keyframes pop { from { opacity: 0; transform: scale(0.96) translateY(6px); } to { opacity: 1; transform: none; } }
}
.success strong { font-family: var(--font-display); font-weight: 600; display: block; font-size: 16px; }
.success__sub { color: var(--fg-soft); font-size: 14px; }

/* ── HINT ROW ── */
.hints { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; justify-content: center; margin-top: 10px; }
.hint { display: inline-flex; align-items: center; gap: 8px; color: var(--fg-soft); font-size: 14px; }
.hint__ic { color: var(--accent); display: inline-flex; }
.hints__div { width: 4px; height: 4px; border-radius: 50%; background: var(--fg-mute); opacity: 0.5; }

/* ── SIGNET CARD (clickable, expands to reveal details) ── */
.cardwrap { margin-top: 14px; }
.signet-card {
  width: 256px; text-align: left;
  background: linear-gradient(165deg, color-mix(in oklab, var(--accent) 7%, var(--panel)), var(--panel));
  border: 1px solid color-mix(in oklab, var(--accent) 22%, var(--panel-bd));
  border-radius: 18px; padding: 18px; box-shadow: var(--shadow); position: relative;
  cursor: pointer; -webkit-tap-highlight-color: transparent;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.signet-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--accent) 42%, var(--panel-bd));
  box-shadow: var(--shadow), 0 0 0 1px color-mix(in oklab, var(--accent) 18%, transparent);
}
.signet-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.signet-card__top { display: flex; align-items: center; justify-content: space-between; }
.signet-card__verify {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.02em; color: var(--accent);
  background: color-mix(in oklab, var(--accent) 14%, transparent);
  border: 1px solid color-mix(in oklab, var(--accent) 30%, transparent);
  padding: 4px 8px; border-radius: 999px;
}
.signet-card__handle { font-size: 21px; font-weight: 500; margin-top: 14px; letter-spacing: -0.01em; }
.signet-card__meta { margin-top: 2px; display: flex; flex-direction: column; }
.signet-card__name { font-family: var(--font-display); font-weight: 500; font-size: 14px; color: var(--fg-soft); }
.signet-card__by { font-size: 12px; color: var(--fg-mute); }

/* expanding details (height driven by JS so it fits whichever face is showing) */
.signet-card__details {
  height: 0; overflow: hidden;
  transition: height 0.44s cubic-bezier(0.16,0.8,0.3,1);
}

/* 3D turnaround between the summary face and the JSON face */
.sc-flip { perspective: 1100px; padding-top: 16px; }
.sc-flip__inner {
  position: relative; transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.4,0.05,0.2,1);
}
.sc-flip.is-json .sc-flip__inner { transform: rotateY(180deg); }
.sc-face {
  backface-visibility: hidden; -webkit-backface-visibility: hidden;
  transition: visibility 0s 0.3s; /* swap faces edge-on, at the flip's midpoint */
}
.sc-face--front { visibility: visible; }
.sc-face--back {
  position: absolute; top: 0; left: 0; width: 100%;
  transform: rotateY(180deg); visibility: hidden;
}
.sc-flip.is-json .sc-face--front { visibility: hidden; }
.sc-flip.is-json .sc-face--back { visibility: visible; }
@media (prefers-reduced-motion: reduce) {
  .sc-flip__inner, .sc-face { transition: none; }
}

.sc-flipbtn {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 16px;
  background: none; border: none; padding: 0; cursor: pointer;
  font-family: var(--font-body); font-size: 12.5px; font-weight: 600; color: var(--accent);
}
.sc-flipbtn:hover { filter: brightness(1.12); }
.sc-flipbtn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.sc-json-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.sc-json-head .sc-flipbtn { margin-top: 0; }
.sc-json-name { font-size: 11px; color: var(--fg-mute); letter-spacing: 0.04em; white-space: nowrap; }
.sc-json {
  margin: 12px 0 0; font-family: var(--font-mono); font-size: 10.5px; line-height: 1.55;
  color: var(--fg-soft); overflow: auto; white-space: pre; max-height: 280px;
}
.sc-json code { display: block; }
.sc-json-foot {
  margin-top: 10px; padding-top: 0; font-size: 10px; color: var(--fg-mute);
  letter-spacing: 0.04em; opacity: 0.7;
}
.tok-key  { color: var(--accent-soft); }
.tok-str  { color: #cdc6b6; }
.tok-num  { color: #e3a99f; }
.tok-bool { color: var(--accent); }
.tok-null { color: var(--fg-mute); }

.sc-section { padding-top: 16px; }
.sc-label {
  display: block; font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--fg-mute); margin-bottom: 9px;
}
.sc-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.sc-chip {
  font-size: 12px; color: var(--fg-soft); white-space: nowrap;
  background: color-mix(in oklab, var(--accent) 9%, transparent);
  border: 1px solid color-mix(in oklab, var(--accent) 20%, transparent);
  padding: 4px 9px; border-radius: 999px;
}
.sc-rows { display: flex; flex-direction: column; gap: 8px; }
.sc-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; font-size: 13px; color: var(--fg-soft); white-space: nowrap; }
.sc-row .mono { color: var(--fg); font-size: 12px; }
.sc-live { display: inline-flex; align-items: center; gap: 5px; color: var(--accent); font-size: 12px; }
.sc-live__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.sc-endpoint { margin-top: 16px; font-size: 11.5px; color: var(--accent); opacity: 0.85; }

.signet-card__foot {
  margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--panel-bd);
  font-size: 11.5px; color: var(--fg-mute); letter-spacing: 0.04em;
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.signet-card__foot > .mono { white-space: nowrap; }
.signet-card__toggle { display: inline-flex; align-items: center; gap: 5px; color: var(--fg-soft); letter-spacing: 0; }
.sc-chevron { transition: transform 0.32s cubic-bezier(0.16,0.8,0.3,1); }
.signet-card.is-open .sc-chevron { transform: rotate(180deg); }

/* ── FOOTER ── */
.foot {
  width: 100%; max-width: 920px; display: flex; align-items: center; justify-content: space-between;
  gap: 14px; flex-wrap: wrap; font-size: 13px; color: var(--fg-mute);
}
.foot__link { color: var(--fg-soft); text-decoration: none; font-family: var(--font-mono); font-size: 12.5px; }
.foot__link:hover { color: var(--accent); }

/* ── SEAL ── */
.seal { position: relative; display: inline-block; line-height: 0; }
.seal__glow { opacity: 0.16; transform-origin: center; }
@media (prefers-reduced-motion: no-preference) {
  .seal--idle .seal__glow { filter: blur(14px); animation: glow 5.5s ease-in-out infinite; }
  @keyframes glow {
    0%, 100% { opacity: 0.10; transform: scale(0.94); }
    50% { opacity: 0.22; transform: scale(1.04); }
  }
}

/* ── ENTRANCE (transform-only so content is never hidden; only runs with JS) ── */
@media (prefers-reduced-motion: no-preference) {
  html.js .topbar,
  html.js .hero > *,
  html.js .foot {
    animation: rise 0.85s cubic-bezier(0.16,0.8,0.3,1) both;
  }
  html.js .topbar { animation-delay: 0.05s; }
  html.js .hero__seal { animation-delay: 0.12s; }
  html.js .headline { animation-delay: 0.22s; }
  html.js .lede { animation-delay: 0.30s; }
  html.js .capture, html.js .success { animation-delay: 0.40s; }
  html.js .hints { animation-delay: 0.50s; }
  html.js .cardwrap { animation-delay: 0.58s; }
  html.js .foot { animation-delay: 0.66s; }
  @keyframes rise { from { transform: translateY(16px); } to { transform: none; } }
}

@media (max-width: 560px) {
  .capture__row { flex-direction: column; }
  .btn { height: 46px; justify-content: center; }
  .foot { justify-content: center; text-align: center; }
}