/* Signal Calibrate Labs — site styles */

:root {
  --ink:      #0E1626;
  --ink-2:    #16223A;
  --ink-3:    #1F2D49;
  --hair:     rgba(196,154,77,0.16);
  --hair-2:   rgba(243,238,228,0.10);
  --bone:     #F3EEE4;
  --bone-dim: #B7B1A4;
  --slate:    #8791A6;
  --brass:    #C49A4D;
  --brass-hi: #E4C77E;

  --serif: "Crimson Text", Georgia, "Times New Roman", serif;
  --sans:  "Inter", system-ui, -apple-system, sans-serif;
  --mono:  "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;

  --wrap: 1180px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background-color: var(--ink);
  background-image:
    radial-gradient(1100px 620px at 78% -8%, rgba(196,154,77,0.10), transparent 60%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  color: var(--bone);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.wrap {
  width: min(var(--wrap), 100% - clamp(2.5rem, 10vw, 6rem));
  margin-inline: auto;
}

/* ---------- type ---------- */
.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brass);
  margin: 0 0 1.25rem;
  font-weight: 500;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.08; margin: 0; }
h1 { font-size: clamp(2.5rem, 6.4vw, 4.6rem); letter-spacing: -0.015em; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.8rem); letter-spacing: -0.01em; }
h3 { font-size: 1.35rem; letter-spacing: -0.005em; }
p  { margin: 0 0 1.1rem; color: var(--bone-dim); }
p.lead { font-size: clamp(1.05rem, 1.7vw, 1.28rem); color: var(--bone); max-width: 56ch; }
.muted { color: var(--slate); }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 40;
  background: rgba(14,22,38,0.78);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hair-2);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding-block: 1.05rem;
}
.brand { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--bone); }
.brand .glyph { width: 30px; height: 30px; color: var(--brass); flex: none; }
.brand .name { font-family: var(--serif); font-size: 1.18rem; font-weight: 600; letter-spacing: 0.01em; white-space: nowrap; }
.brand .name b { font-weight: 600; }
.nav-links { display: flex; align-items: center; gap: clamp(1.1rem, 2.6vw, 2.2rem); }
.nav-links a {
  font-size: 0.84rem; letter-spacing: 0.04em; color: var(--bone-dim);
  font-weight: 500; transition: color 0.2s ease; padding-block: 0.35rem;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--bone); }
.nav-links a[aria-current="page"] { color: var(--brass); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--sans); font-size: 0.86rem; font-weight: 600; letter-spacing: 0.02em;
  padding: 0.85rem 1.5rem; border-radius: 2px; cursor: pointer;
  transition: transform 0.18s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  border: 1px solid transparent;
}
.btn--solid { background: var(--brass); color: #1a1305; }
.btn--solid:hover { background: var(--brass-hi); transform: translateY(-2px); }
.btn--ghost { border-color: rgba(243,238,228,0.28); color: var(--bone); }
.btn--ghost:hover { border-color: var(--brass); color: var(--brass-hi); transform: translateY(-2px); }
.btn .arr { transition: transform 0.18s ease; }
.btn:hover .arr { transform: translateX(3px); }

/* ---------- sections ---------- */
.section { padding-block: clamp(4.5rem, 9vw, 8rem); }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }
.rule { height: 1px; background: var(--hair); border: 0; margin: 0; }

.section-head { max-width: 60ch; margin-bottom: clamp(2.2rem, 4vw, 3.4rem); }
.section-head p { margin-top: 1rem; }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; }
.hero-grid {
  display: grid; grid-template-columns: 1.15fr 0.85fr; align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  padding-block: clamp(3.5rem, 8vw, 7rem);
}
.hero h1 { margin-bottom: 1.5rem; }
.hero .lead { margin-bottom: 2.2rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 0.85rem; }
.enso-wrap { display: grid; place-items: center; }
.enso { width: min(420px, 78vw); height: auto; }
.enso--static { width: min(280px, 50vw); opacity: 0.9; }

/* enso ticks + parts */
.tk   { stroke: var(--brass); stroke-width: 1.4; opacity: 0.34; }
.tk--q{ stroke: var(--brass-hi); stroke-width: 2; opacity: 0.8; }

/* ---------- capability grid ---------- */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1rem, 2vw, 1.4rem); }
.cap {
  border: 1px solid var(--hair); border-radius: 3px; padding: 1.9rem 1.7rem 2rem;
  background: linear-gradient(180deg, rgba(243,238,228,0.02), transparent);
  transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
}
.cap:hover { border-color: rgba(196,154,77,0.4); transform: translateY(-4px); background: linear-gradient(180deg, rgba(196,154,77,0.06), transparent); }
.cap .tag { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.2em; color: var(--brass); text-transform: uppercase; display: block; margin-bottom: 1.1rem; }
.cap h3 { margin-bottom: 0.7rem; }
.cap p { margin: 0; font-size: 0.96rem; }

/* ---------- feature panels ---------- */
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1rem, 2vw, 1.4rem); }
.panel {
  position: relative; border: 1px solid var(--hair-2); border-radius: 4px; overflow: hidden;
  background: var(--ink-2); padding: clamp(2rem, 3.4vw, 3rem);
  transition: border-color 0.25s ease;
}
.panel:hover { border-color: rgba(196,154,77,0.35); }
.panel .tag { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.2em; color: var(--brass); text-transform: uppercase; }
.panel h3 { font-size: 1.7rem; margin: 0.9rem 0 0.7rem; }
.panel p { font-size: 0.98rem; margin-bottom: 1.6rem; }
.panel .more { font-family: var(--sans); font-size: 0.84rem; font-weight: 600; color: var(--brass-hi); display: inline-flex; gap: 0.4rem; }
.panel .more .arr { transition: transform 0.18s ease; }
.panel:hover .more .arr { transform: translateX(3px); }

/* ---------- thesis band (inverted) ---------- */
.thesis { background: var(--bone); color: var(--ink); }
.thesis .wrap { padding-block: clamp(3.5rem, 7vw, 6rem); }
.thesis .tag { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.22em; text-transform: uppercase; color: #9c7733; margin: 0 0 1.4rem; }
.thesis blockquote { margin: 0; max-width: 30ch; }
.thesis blockquote p { font-family: var(--serif); font-size: clamp(1.6rem, 3.2vw, 2.5rem); line-height: 1.22; color: var(--ink); margin: 0; }
.thesis .by { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; color: #6b5a36; margin-top: 1.6rem; }

/* ---------- spec row ---------- */
.spec { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--hair); border-block: 1px solid var(--hair); }
.spec > div { background: var(--ink); padding: 1.6rem clamp(1rem,2vw,1.6rem); }
.spec dt { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--slate); margin-bottom: 0.5rem; }
.spec dd { font-family: var(--serif); font-size: 1.2rem; margin: 0; color: var(--bone); }

/* ---------- page header ---------- */
.page-head { padding-block: clamp(3.5rem, 7vw, 6rem) clamp(1rem,2vw,1.5rem); }
.page-head h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); margin-bottom: 1.2rem; }
.page-head p { max-width: 58ch; }

/* ---------- product detail ---------- */
.detail { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(1.5rem, 4vw, 4rem); align-items: start; }
.detail + .detail { margin-top: clamp(3rem, 6vw, 5.5rem); padding-top: clamp(3rem, 6vw, 5.5rem); border-top: 1px solid var(--hair); }
.detail .tag { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--brass); }
.detail h2 { margin: 0.8rem 0 1.1rem; }
.detail .meta { list-style: none; margin: 1.6rem 0 0; padding: 0; display: grid; gap: 0.65rem; }
.detail .meta li { display: grid; grid-template-columns: 7.5rem 1fr; gap: 1rem; font-size: 0.9rem; padding-bottom: 0.65rem; border-bottom: 1px solid var(--hair-2); }
.detail .meta b { font-family: var(--mono); font-weight: 500; font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--slate); align-self: center; }
.detail .meta span { color: var(--bone); }

/* ---------- principles ---------- */
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.4rem, 3vw, 2.6rem); }
.principle .n { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.2em; color: var(--brass); display: block; margin-bottom: 0.9rem; }
.principle h3 { font-size: 1.25rem; margin-bottom: 0.6rem; }
.principle p { font-size: 0.95rem; margin: 0; }

/* ---------- entity block ---------- */
.entity { border: 1px solid var(--hair); border-radius: 4px; padding: clamp(2rem,4vw,3rem); background: linear-gradient(180deg, rgba(196,154,77,0.05), transparent); }
.entity .tag { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--slate); margin: 0 0 1rem; }
.entity .legal { font-family: var(--serif); font-size: clamp(1.7rem, 3.4vw, 2.4rem); color: var(--bone); margin: 0 0 0.5rem; }
.entity .loc { font-size: 0.95rem; color: var(--bone-dim); margin: 0; }
.entity .ops { margin-top: 1.6rem; font-size: 0.92rem; color: var(--slate); }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.channels { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.6rem; }
.channels .tag { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--slate); display: block; margin-bottom: 0.35rem; }
.channels a, .channels span { font-family: var(--serif); font-size: 1.25rem; color: var(--bone); }
.channels a:hover { color: var(--brass-hi); }

form { display: grid; gap: 1.3rem; }
.field { display: grid; gap: 0.5rem; }
.field label { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--slate); }
.field input, .field textarea {
  font-family: var(--sans); font-size: 0.98rem; color: var(--bone);
  background: var(--ink-2); border: 1px solid var(--hair-2); border-radius: 3px;
  padding: 0.85rem 0.95rem; transition: border-color 0.2s ease, background 0.2s ease;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--brass); background: #18253e; }
.field textarea { resize: vertical; min-height: 140px; }
.hp { position: absolute; left: -9999px; }
.form-note { font-size: 0.86rem; color: var(--brass-hi); margin: 0; display: none; }
.form-note.show { display: block; }

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--hair-2); padding-block: clamp(3rem, 5vw, 4.5rem) 2.4rem; margin-top: clamp(2rem,4vw,3rem); }
.foot-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2rem; margin-bottom: 2.6rem; }
.foot .brand .glyph { width: 26px; height: 26px; }
.foot .brand .name { font-size: 1.05rem; }
.foot-tag { color: var(--slate); font-size: 0.9rem; max-width: 30ch; margin: 0.9rem 0 0; }
.foot-nav { display: flex; gap: clamp(1.5rem,3vw,2.6rem); flex-wrap: wrap; }
.foot-nav a { font-size: 0.85rem; color: var(--bone-dim); }
.foot-nav a:hover { color: var(--brass); }
.foot-legal { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.8rem; padding-top: 1.8rem; border-top: 1px solid var(--hair-2); }
.foot-legal p { margin: 0; font-size: 0.78rem; color: var(--slate); letter-spacing: 0.02em; }
.foot-legal .entity-name { color: var(--bone-dim); font-weight: 500; }

/* ---------- reveal + load (progressive enhancement) ----------
   Content is visible by default. Hidden initial states apply only
   when JS is present (html.js), so no-JS users see everything. */
.reveal { transition: opacity 0.7s ease, transform 0.7s ease; }
.js .reveal { opacity: 0; transform: translateY(18px); }
.js .reveal.in { opacity: 1; transform: none; }

/* hero load sequence */
.enso-stroke { stroke-dasharray: 1; }
.js .enso-stroke { stroke-dashoffset: 1; }
.loaded .enso-stroke { animation: draw 1.5s cubic-bezier(0.7,0,0.2,1) forwards; }
.js .enso-glow { opacity: 0; }
.loaded .enso-glow  { animation: glowin 1.2s ease 0.9s forwards; }
.js .ticks .tk, .js .ticks .tk--q { opacity: 0; }
.loaded .ticks .tk   { animation: tickin 0.5s ease forwards; }
.loaded .ticks .tk--q{ animation: tickqin 0.5s ease forwards; }
.js .koi { opacity: 0; }
.loaded .koi { animation: koiin 0.9s cubic-bezier(0.2,0.8,0.2,1) 1.25s forwards; }

.js .hero .stagger { opacity: 0; transform: translateY(16px); }
.loaded .hero .stagger { animation: up 0.8s ease forwards; }
.loaded .hero .s1 { animation-delay: 0.15s; }
.loaded .hero .s2 { animation-delay: 0.30s; }
.loaded .hero .s3 { animation-delay: 0.45s; }
.loaded .hero .s4 { animation-delay: 0.60s; }

@keyframes draw   { to { stroke-dashoffset: 0; } }
@keyframes glowin { to { opacity: 0.5; } }
@keyframes tickin { to { opacity: 0.34; } }
@keyframes tickqin{ to { opacity: 0.8; } }
@keyframes koiin  { from { opacity: 0; transform: translate(10px,-8px); } to { opacity: 1; transform: none; } }
@keyframes up     { to { opacity: 1; transform: none; } }

/* ---------- focus ---------- */
:focus-visible { outline: 2px solid var(--brass-hi); outline-offset: 3px; border-radius: 2px; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .enso-wrap { order: -1; }
  .enso { width: min(300px, 70vw); }
  .detail, .contact-grid { grid-template-columns: 1fr; }
  .detail .enso-wrap { display: none; }
}
@media (max-width: 760px) {
  .cap-grid, .feature-grid, .principles, .spec { grid-template-columns: 1fr; }
  .spec > div { padding: 1.3rem; }
  .nav-links { gap: 1.1rem; }
  .brand .name .full { display: none; }
}
@media (min-width: 761px) { .brand .name .abbr { display: none; } }
@media (max-width: 420px) {
  body { font-size: 16px; }
  .nav-links a { font-size: 0.8rem; }
}

@media (prefers-reduced-motion: reduce) {
  .js .reveal, .js .reveal.in { opacity: 1; transform: none; transition: none; }
  .js .enso-stroke { stroke-dashoffset: 0; }
  .js .enso-glow { opacity: 0.5; }
  .js .ticks .tk { opacity: 0.34; } .js .ticks .tk--q { opacity: 0.8; }
  .js .koi { opacity: 1; }
  .js .hero .stagger { opacity: 1; transform: none; }
  .loaded .enso-stroke, .loaded .enso-glow, .loaded .ticks .tk, .loaded .ticks .tk--q,
  .loaded .koi, .loaded .hero .stagger { animation: none; }
}