/* ============================================================
   LETTERS — Design System v2
   Crisp · Engineered · Premium  (dub / hex / ramp DNA)
   ============================================================ */

@import url('https://api.fontshare.com/v2/css?f[]=switzer@400,500,600,700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* ---- Ink / neutrals ---- */
  --ink:     #111317;
  --dark:    #1F222B;
  --ink-2:   #3A3D45;
  --muted:   #6A6E78;
  --muted-2: #9A9DA6;
  --faint:   #C3C6CD;

  /* ---- Surfaces ---- */
  --bg:        #FFFFFF;
  --bg-2:      #FAFAFB;
  --bg-3:      #F4F5F7;
  --surface:   #FFFFFF;

  /* ---- Hairlines ---- */
  --line:        rgba(17,19,23,0.09);
  --line-2:      rgba(17,19,23,0.14);
  --line-strong: rgba(17,19,23,0.20);

  /* ---- Accent: monochrome ink ---- */
  --accent:      #111317;
  --accent-700:  #000000;
  --accent-soft: #F1F1F3;
  --accent-line: rgba(17,19,23,0.16);

  /* ---- A little colour: coral brand spark + green status ---- */
  --spark:       #F0612F;
  --spark-700:   #D24A1C;
  --spark-soft:  #FDEDE6;
  --spark-line:  rgba(240,97,47,0.30);
  --pos:         #1A8F5C;
  --pos-soft:    #E7F4ED;
  --pos-line:    rgba(26,143,92,0.28);

  /* semantic */
  --green: #1A8F5C;
  --green-soft: #E7F4ED;
  --amber: #B5751B;

  /* ---- Radii (sharper than v1) ---- */
  --r-xs: 6px;
  --r-sm: 8px;
  --r-md: 11px;
  --r-lg: 14px;
  --r-xl: 18px;

  /* ---- Shadows (crisp, restrained) ---- */
  --sh-xs: 0 1px 1px rgba(17,19,23,0.04);
  --sh-sm: 0 1px 2px rgba(17,19,23,0.06), 0 1px 1px rgba(17,19,23,0.04);
  --sh-md: 0 4px 14px -4px rgba(17,19,23,0.12), 0 1px 2px rgba(17,19,23,0.06);
  --sh-pop: 0 32px 64px -24px rgba(17,19,23,0.28), 0 8px 24px -12px rgba(17,19,23,0.14);

  --font: 'Switzer', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: -0.011em;
  overflow-x: hidden;
}
h1,h2,h3,h4 { margin: 0; font-weight: 600; letter-spacing: -0.03em; line-height: 1.05; color: var(--ink); }
p { margin: 0; }
a { color: inherit; text-decoration: none; }

/* ============================================================
   Layout
   ============================================================ */
.container { max-width: 1180px; margin: 0 auto; padding: 0 28px; }
.container-wide { max-width: 1320px; margin: 0 auto; padding: 0 28px; }
.section { padding: 96px 0; }
@media (max-width: 600px) {
  .container, .container-wide { padding: 0 18px; }
  .section { padding: 58px 0; }
}
.divider { border-top: 1px solid var(--line); }
.muted { color: var(--muted); }

/* dot grid background */
.dotgrid {
  background-image: radial-gradient(circle, rgba(17,19,23,0.085) 1px, transparent 1.4px);
  background-size: 24px 24px;
}
.linegrid {
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
}
.fade-mask { -webkit-mask-image: radial-gradient(120% 80% at 50% 0%, #000 35%, transparent 78%); mask-image: radial-gradient(120% 80% at 50% 0%, #000 35%, transparent 78%); }

/* ============================================================
   Type helpers
   ============================================================ */
.mono { font-family: var(--mono); }
.label {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--muted);
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
  font-family: var(--mono);
  font-size: 11.5px; font-weight: 500; letter-spacing: 0.10em; text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  padding: 5px 11px 4px; border-radius: var(--r-sm);
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--spark); animation: dotpulse 2.6s var(--ease) infinite; }
@keyframes dotpulse { 0%, 100% { box-shadow: 0 0 0 0 rgba(240,97,47,0.40); } 70% { box-shadow: 0 0 0 6px rgba(240,97,47,0); } }

.h-display { font-size: clamp(40px, 6vw, 70px); font-weight: 600; letter-spacing: -0.035em; line-height: 1.0; }
.h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 600; letter-spacing: -0.032em; }
.lede { font-size: clamp(17px, 2vw, 20px); color: var(--muted); line-height: 1.5; }
.accent { color: var(--accent); }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  font-family: var(--font); font-weight: 540; font-size: 14.5px; letter-spacing: -0.01em;
  padding: 10px 17px; border-radius: var(--r-md); border: 1px solid transparent;
  cursor: pointer; display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
  transition: background .18s, border-color .18s, transform .18s var(--ease), box-shadow .18s;
}
.btn:active { transform: translateY(0.5px); }
.btn-ink { background: var(--ink); color: #fff; box-shadow: var(--sh-sm); }
.btn-ink:hover { background: #25272E; box-shadow: var(--sh-md); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 1px 2px rgba(79,70,229,0.3); }
.btn-accent:hover { background: var(--accent-700); }
.btn-outline { background: var(--surface); color: var(--ink); border-color: var(--line-2); box-shadow: var(--sh-xs); }
.btn-outline:hover { border-color: var(--line-strong); background: var(--bg-2); }
.btn-ghost { background: transparent; color: var(--ink-2); }
.btn-ghost:hover { color: var(--ink); background: rgba(17,19,23,0.045); }
.btn-lg { padding: 13px 22px; font-size: 15px; border-radius: var(--r-md); }
.btn-sm { padding: 7px 12px; font-size: 13px; border-radius: var(--r-sm); }

/* ============================================================
   Cards / tags
   ============================================================ */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-xs);
}
.tag {
  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
  font-size: 12.5px; font-weight: 500; color: var(--ink-2);
  background: var(--bg-2); border: 1px solid var(--line);
  padding: 4px 10px; border-radius: var(--r-sm);
}
.kbd {
  font-family: var(--mono); font-size: 11px; color: var(--muted);
  background: var(--bg-2); border: 1px solid var(--line); border-bottom-width: 2px;
  padding: 2px 6px; border-radius: 5px;
}

/* ============================================================
   Reveal — content is always visible (no hide-based entrance).
   Kept as a hook for safe, additive animations only.
   ============================================================ */
.reveal { opacity: 1; transform: none; }

/* ============================================================
   Motion
   ============================================================ */
/* content is always visible — no hide-based entrance (prevents blank hero in throttled previews) */
.rise { opacity: 1; transform: none; }
body.force-show .rise { opacity: 1 !important; transform: none !important; }

@keyframes statuspulse { 0%, 100% { box-shadow: 0 0 0 0 rgba(26,143,92,0.45); } 70% { box-shadow: 0 0 0 5px rgba(26,143,92,0); } }
@keyframes sparkpulse { 0%, 100% { transform: scale(1); opacity: .92; } 50% { transform: scale(1.16); opacity: 1; } }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-4px); } }

/* ---- Animated logo: keeps the skewed tilt + gently floats; sparkle twinkles via SMIL ---- */
.logo-mark { transform-origin: center; animation: logoFloat 4.6s var(--ease) infinite; }
@keyframes logoFloat { 0%, 100% { transform: rotate(-3deg) translateY(0); } 50% { transform: rotate(-4.5deg) translateY(-1.4px); } }
.brand:hover .logo-mark { animation-duration: 1.6s; }

/* ---- traveling pulse along a connector ---- */
@keyframes travel { 0% { left: -8%; opacity: 0; } 12% { opacity: 1; } 88% { opacity: 1; } 100% { left: 108%; opacity: 0; } }
/* ---- node "lights up" ---- */
@keyframes nodeLit { 0%, 100% { box-shadow: 0 0 0 0 rgba(17,19,23,0); } 50% { box-shadow: 0 0 0 4px rgba(240,97,47,0.16); } }
/* ---- shimmer sweep across a surface/button ---- */
@keyframes shimmer { 0% { background-position: -160% 0; } 100% { background-position: 260% 0; } }
/* ---- a row that just "arrived" ---- */
@keyframes rowIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }
@keyframes liveGlow { 0% { background: rgba(26,143,92,0.12); } 100% { background: transparent; } }
/* ---- soft breathing scale ---- */
@keyframes breathe { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.04); } }
/* ---- blink caret ---- */
@keyframes caretBlink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }
/* ---- gentle drift for ambient blobs ---- */
@keyframes drift { 0%, 100% { transform: translate(0,0); } 33% { transform: translate(14px,-10px); } 66% { transform: translate(-10px,8px); } }
/* ---- sheen on text ---- */
@keyframes textSheen { 0% { background-position: 0% 50%; } 100% { background-position: 200% 50%; } }

@media (prefers-reduced-motion: reduce) {
  .logo-mark, .marquee, [class*="anim"] { animation: none !important; }
}