/* =============================================================
   YEK Edge — Teaser landing page
   styles.css — all styles + §7 design tokens
   Dark is the only theme the teaser ships.
   ============================================================= */

/* ---- Self-hosted family (the one webfont) ---------------- */
/* JetBrains Mono ships on disk; sans falls back to the system stack
   per brief §6 (no third-party fonts, sub-1s LCP). */
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("assets/fonts/JetBrainsMono-Regular.ttf") format("truetype");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("assets/fonts/JetBrainsMono-Bold.ttf") format("truetype");
}

:root {
  /* ---- Color (dark, the only theme the teaser ships) ---- */
  --bg:            #060A10;
  --surface:       #0C1018;
  --surface-2:     #121820;
  --text-primary:  #FFFFFF;
  --text-muted:    #B2B5BE;
  --text-faint:    #787B86;
  --accent:        #00FF85;
  --accent-glow:   rgba(0, 255, 133, 0.25);
  --accent-2:      #22D3EE;
  --success:       #22C55E;
  --warn:          #F59E0B;
  --danger:        #EF4444;
  --border:        #1E293B;
  --border-hover:  #334155;

  /* ---- Typography ---- */
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --fs-axis:   10px;
  --fs-micro:  11px;
  --fs-body:   14px;
  --fs-lead:   18px;
  --fs-sub:    24px;
  --fs-h2:     32px;
  --fs-h1:     48px;
  --fs-hero:   72px;
  --tracking-brand: 0.18em;

  /* ---- Spacing (4px base unit) ---- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-16: 64px;
  --space-24: 96px;

  /* ---- Radii ---- */
  --radius-1: 2px;
  --radius-2: 4px;
  --radius-3: 8px;
  --radius-4: 12px;
  --radius-5: 16px;
  --radius-pill: 999px;

  /* ---- Elevation ---- */
  --shadow-none: none;
  --focus-ring: 0 0 0 2px var(--accent-glow);

  /* ---- Motion ---- */
  --motion-fast: 120ms;
  --motion-base: 240ms;
  --motion-slow: 360ms;
  --motion-pulse: 2000ms;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

/* ---- Reset ---------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
}
h1, h2, p { margin: 0; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--accent); color: #000; }

/* A faint dotted grid sits behind the page — a quiet nod to the
   product's gridded cockpit. Never reads as decoration; just texture. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(120, 123, 134, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  z-index: 0;
}

/* ---- Layout shell --------------------------------------- */
.page {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 clamp(var(--space-6), 5vw, var(--space-24));
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ---- Header / wordmark ---------------------------------- */
.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: clamp(var(--space-6), 4vw, var(--space-10)) 0;
}
.wordmark {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: var(--tracking-brand);
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
}
.wordmark::before {
  /* squared monogram glyph echoing assets/yek-mark.svg */
  content: "";
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 1px;
}
.masthead__tag {
  font-family: var(--font-mono);
  font-size: var(--fs-axis);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
  border: 1px solid var(--border);
  border-radius: var(--radius-1);
  padding: var(--space-1) var(--space-3);
  white-space: nowrap;
}

/* ---- Hero ----------------------------------------------- */
.hero {
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(var(--space-16), 8vh, var(--space-24)) 0;
  max-width: 56rem;
}

/* status / coming-soon cue */
.status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: var(--space-8);
}
.status__dot {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
}
/* the ONE ambient motion: a faint breathing halo on the status dot */
.status__dot::after {
  content: "";
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  background: var(--accent-glow);
  animation: pulse var(--motion-pulse) var(--ease-in-out) infinite;
}
@keyframes pulse {
  0%,   100% { transform: scale(0.6); opacity: 0.9; }
  50%        { transform: scale(1.6); opacity: 0;   }
}
@media (prefers-reduced-motion: reduce) {
  .status__dot::after { animation: none; opacity: 0.45; transform: scale(1.1); }
}

.hero__title {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: clamp(var(--fs-h1), 6.6vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  text-wrap: balance;
  margin-bottom: var(--space-6);
}
.hero__title em {
  font-style: normal;
  color: var(--text-muted);
}
.hero__lead {
  font-size: clamp(var(--fs-lead), 1.6vw, 22px);
  line-height: 1.5;
  color: var(--text-muted);
  max-width: 40rem;
  text-wrap: pretty;
  margin-bottom: var(--space-10);
}

/* ---- Form ----------------------------------------------- */
.signup { max-width: 30rem; }
.signup__row {
  display: flex;
  gap: var(--space-3);
  align-items: stretch;
}
.signup__input {
  flex: 1 1 auto;
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-2);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  padding: 0 var(--space-4);
  height: 48px;
  transition: border-color var(--motion-base) var(--ease-out),
              box-shadow var(--motion-base) var(--ease-out);
}
.signup__input::placeholder { color: var(--text-faint); }
.signup__input:hover { border-color: var(--border-hover); }
.signup__input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--focus-ring);
}
.signup__input:disabled { opacity: 0.5; cursor: not-allowed; }

/* the ONE CTA flash of accent on the page */
.signup__btn {
  flex: none;
  background: var(--accent);
  color: #000;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--fs-micro);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: 1px solid var(--accent);
  border-radius: var(--radius-2);
  padding: 0 var(--space-6);
  height: 48px;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--motion-fast) var(--ease-out),
              opacity var(--motion-base) var(--ease-out),
              filter var(--motion-base) var(--ease-out);
}
.signup__btn:hover { filter: brightness(1.08); }
.signup__btn:active { transform: translateY(1px); }
.signup__btn:disabled { opacity: 0.55; cursor: progress; }

.signup__note {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.02em;
  color: var(--text-faint);
  margin-top: var(--space-4);
}

/* form feedback states */
.signup__msg {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.02em;
  margin-top: var(--space-4);
  min-height: 1.2em;
  opacity: 0;
  transform: translateY(-2px);
  transition: opacity var(--motion-base) var(--ease-out),
              transform var(--motion-base) var(--ease-out);
}
.signup__msg.is-visible { opacity: 1; transform: none; }
.signup__msg[data-tone="ok"]  { color: var(--accent); }
.signup__msg[data-tone="err"] { color: var(--warn); }

/* once submitted successfully we collapse the row */
.signup.is-done .signup__row,
.signup.is-done .signup__note { display: none; }

/* noscript fallback — hidden when JS is present, shown when it isn't */
.fallback {
  display: none;
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--text-faint);
}
.fallback a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

/* If JS never runs, the .no-js flag stays on <html>: drop the live
   form chrome and surface the mailto link instead. */
.no-js .signup__note,
.no-js .signup__msg { display: none; }
.no-js .signup__btn { display: none; }
.no-js .fallback { display: block; }

/* ---- Capability silhouettes (below the fold) ------------ */
/* Full-bleed row separated by thin vertical hairlines — depth is
   borders, never fills (brief §6). */
.silhouettes {
  margin: 0 calc(-1 * clamp(var(--space-6), 5vw, var(--space-24)));
  padding: 0 clamp(var(--space-6), 5vw, var(--space-24));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.sil {
  padding: clamp(var(--space-16), 9vh, var(--space-24)) clamp(var(--space-5), 2.5vw, var(--space-8));
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.sil:first-child { border-left: none; padding-left: 0; }
.sil:last-child { padding-right: 0; }
.sil__idx {
  font-family: var(--font-mono);
  font-size: var(--fs-axis);
  letter-spacing: 0.2em;
  color: var(--text-faint);
}
.sil__label {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: clamp(var(--fs-sub), 2vw, 30px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  text-wrap: balance;
}

/* ---- Footer --------------------------------------------- */
.footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3) var(--space-6);
  padding: clamp(var(--space-8), 5vw, var(--space-16)) 0;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.04em;
  color: var(--text-faint);
}
.footer > span:not(.footer__status), .footer > a { white-space: nowrap; }
.footer__sep { color: var(--border-hover); }
.footer a { transition: color var(--motion-base) var(--ease-out); }
.footer a:hover { color: var(--text-muted); }
.footer__status { margin-left: auto; }

/* ---- Responsive ----------------------------------------- */
@media (max-width: 720px) {
  .silhouettes { grid-template-columns: repeat(2, 1fr); }
  /* drop the cross-row vertical dividers; use top dividers per row instead */
  .sil {
    border-left: none;
    border-top: 1px solid var(--border);
    padding: clamp(var(--space-10), 6vh, var(--space-16)) clamp(var(--space-4), 4vw, var(--space-6));
    padding-left: 0;
  }
  .sil:nth-child(2) { padding-right: 0; }
  .sil:nth-child(1), .sil:nth-child(2) { border-top: none; }
}
@media (max-width: 560px) {
  .masthead__tag { display: none; }
  .signup__row { flex-direction: column; }
  .signup__input, .signup__btn { width: 100%; }
  .silhouettes { grid-template-columns: 1fr; }
  .sil:nth-child(2) { border-top: 1px solid var(--border); }
  .footer__status { margin-left: 0; flex-basis: 100%; }
}