/* ------------------------------------------------------------------ */
/*  THETIS — design system                                             */
/*  identity: "the held form"                                          */
/*  ink ground · foam type · aegean flame accent · sea-glass second    */
/* ------------------------------------------------------------------ */

:root {
  --ink:        #08090c;
  --ink-2:      #0d1015;
  --ink-3:      #12161d;
  --hairline:   #232a33;
  --hairline-2: #2e3742;
  --foam:       #e9ece7;
  --foam-dim:   #a9b0ac;
  --foam-faint: #6d7573;
  --flame:      #ff4f2e;
  --flame-soft: #ff7a5c;
  --glass:      #8fd0b9;
  --glass-dim:  #5f9483;
  --bronze:     #c39a5e;

  --font-display: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --font-body:    "Newsreader", Georgia, "Times New Roman", serif;
  --font-mono:    "IBM Plex Mono", "SFMono-Regular", Menlo, Consolas, monospace;

  --w-page: 76rem;
  --w-text: 44rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--foam);
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* grain — one faint turbulence layer over everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  opacity: .05;
  background-image: 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='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
}

::selection { background: var(--flame); color: var(--ink); }

a { color: var(--glass); text-decoration: none; border-bottom: 1px solid var(--glass-dim); transition: color .15s, border-color .15s; }
a:hover { color: var(--foam); border-color: var(--foam); }

/* ------------------------------------------------------------------ */
/*  type                                                               */
/* ------------------------------------------------------------------ */

h1, h2, h3 { font-family: var(--font-display); font-weight: 400; margin: 0; }

h2 { font-size: clamp(2.2rem, 4.5vw, 3.4rem); line-height: 1.05; letter-spacing: -.01em; }
h3 { font-size: 1.45rem; line-height: 1.2; }

p { margin: 1.1em 0; }
p:first-child { margin-top: 0; }

strong { font-weight: 600; color: var(--foam); }
em { font-style: italic; }

.kicker {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--flame);
}

.mythic { font-family: var(--font-display); font-style: italic; color: var(--foam-dim); }

/* ------------------------------------------------------------------ */
/*  chrome                                                             */
/* ------------------------------------------------------------------ */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: .9rem 2rem;
  background: color-mix(in srgb, var(--ink) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.site-nav .brand {
  display: flex;
  align-items: center;
  gap: .65rem;
  border: none;
  color: var(--foam);
  letter-spacing: .3em;
  font-size: .85rem;
}
.site-nav .brand svg { display: block; }

.site-nav .links { margin-left: auto; display: flex; gap: 1.8rem; }
.site-nav .links a { border: none; color: var(--foam-dim); }
.site-nav .links a:hover, .site-nav .links a[aria-current="page"] { color: var(--foam); }
.site-nav .links a.cta { color: var(--flame); }
.site-nav .links a.cta:hover { color: var(--flame-soft); }

.site-footer {
  border-top: 1px solid var(--hairline);
  margin-top: 8rem;
  padding: 3.5rem 2rem 4.5rem;
}
.site-footer .inner {
  max-width: var(--w-page);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  align-items: flex-end;
  justify-content: space-between;
}
.site-footer .sig { display: flex; align-items: center; gap: 1rem; }
.site-footer .sig .line { font-family: var(--font-display); font-style: italic; font-size: 1.15rem; color: var(--foam-dim); }
.site-footer nav { display: flex; gap: 1.6rem; font-family: var(--font-mono); font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; }
.site-footer nav a { border: none; color: var(--foam-faint); }
.site-footer nav a:hover { color: var(--foam); }
.site-footer .meta { width: 100%; margin-top: 2.2rem; font-family: var(--font-mono); font-size: .7rem; color: var(--foam-faint); letter-spacing: .08em; }

/* ------------------------------------------------------------------ */
/*  hero                                                               */
/* ------------------------------------------------------------------ */

.hero {
  position: relative;
  max-width: var(--w-page);
  margin: 0 auto;
  padding: 6rem 2rem 5rem;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: 3rem;
  align-items: center;
  min-height: 78vh;
}

.hero h1 {
  font-size: clamp(3.2rem, 7.2vw, 6.4rem);
  line-height: .98;
  letter-spacing: -.015em;
  margin: 1.4rem 0 1.8rem;
}
.hero h1 .accent { color: var(--flame); font-style: italic; }

.hero .sub { font-size: 1.3rem; line-height: 1.55; color: var(--foam-dim); max-width: 34rem; }
.hero .myth-line { font-family: var(--font-display); font-style: italic; font-size: 1.15rem; color: var(--glass); }

.hero-actions { display: flex; gap: 1.1rem; margin-top: 2.4rem; flex-wrap: wrap; }

.btn {
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  padding: .95rem 1.7rem;
  border: 1px solid var(--hairline-2);
  color: var(--foam);
  transition: border-color .15s, color .15s, background .15s;
}
.btn:hover { border-color: var(--foam); color: var(--foam); }
.btn.primary { background: var(--flame); border-color: var(--flame); color: var(--ink); }
.btn.primary:hover { background: var(--flame-soft); border-color: var(--flame-soft); color: var(--ink); }

.morph-stage { position: relative; display: flex; flex-direction: column; align-items: center; gap: 1.2rem; }
.morph-stage svg { width: min(100%, 26rem); height: auto; overflow: visible; }
.morph-caption {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--foam-faint);
  min-height: 1.2em;
  text-align: center;
}
.morph-caption .gr { color: var(--bronze); text-transform: none; letter-spacing: .12em; margin-right: .8em; }

/* ------------------------------------------------------------------ */
/*  sections                                                           */
/* ------------------------------------------------------------------ */

.section {
  max-width: var(--w-page);
  margin: 0 auto;
  padding: 5.5rem 2rem 0;
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: 2.5rem;
}

.section > .rail {
  position: relative;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--foam-faint);
  padding-top: .8rem;
}
.section > .rail .index {
  display: block;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 2.6rem;
  color: var(--flame);
  line-height: 1;
  margin-bottom: .6rem;
}
.section > .rail::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 3.5rem;
  border-top: 1px solid var(--flame);
}

.section > .body { max-width: var(--w-text); }
.section > .body.wide { max-width: none; }
.section h2 { margin-bottom: 1.6rem; }
.section .body > p, .section .body > ul, .section .body > ol { color: var(--foam-dim); }
.section .body li { margin: .5em 0; }
.section .body li strong { color: var(--foam); }

/* tide-line divider between sections */
.tide {
  max-width: var(--w-page);
  margin: 5.5rem auto 0;
  padding: 0 2rem;
  height: 14px;
  overflow: hidden;
}
.tide svg { display: block; width: 100%; height: 14px; }
.tide path { stroke: var(--hairline-2); fill: none; }

/* split layout: prose + figure */
.split { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 3rem; align-items: start; }
.split .fig { position: sticky; top: 6rem; }

/* ------------------------------------------------------------------ */
/*  components                                                         */
/* ------------------------------------------------------------------ */

table {
  width: 100%;
  border-collapse: collapse;
  font-size: .95rem;
  margin: 1.6em 0;
}
th {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--foam-faint);
  text-align: left;
  padding: .55rem .9rem .55rem 0;
  border-bottom: 1px solid var(--hairline-2);
  font-weight: 400;
}
td {
  padding: .65rem .9rem .65rem 0;
  border-bottom: 1px solid var(--hairline);
  color: var(--foam-dim);
  vertical-align: top;
}
td:first-child code, td code { color: var(--glass); }

code {
  font-family: var(--font-mono);
  font-size: .86em;
  color: var(--glass);
  background: var(--ink-3);
  padding: .12em .38em;
  border-radius: 3px;
}

pre {
  margin: 0;
  overflow-x: auto;
  padding: 1.1rem 1.3rem;
  line-height: 1.6;
}
pre code { background: none; padding: 0; color: var(--foam); font-size: .84rem; }

.term {
  background: var(--ink-2);
  border: 1px solid var(--hairline);
  border-radius: 6px;
  margin: 1.6em 0;
  overflow: hidden;
}
.term::before {
  content: attr(data-title);
  display: block;
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--foam-faint);
  padding: .55rem 1.3rem;
  border-bottom: 1px solid var(--hairline);
  background: var(--ink-3);
}
.term pre code .p { color: var(--flame); }
.term pre code .c { color: var(--foam-faint); }

aside.note {
  border-left: 2px solid var(--glass-dim);
  background: color-mix(in srgb, var(--glass) 6%, transparent);
  padding: 1rem 1.4rem;
  margin: 1.6em 0;
  font-size: 1rem;
  color: var(--foam-dim);
}
aside.note > p { margin: .4em 0; }

blockquote {
  margin: 2em 0;
  padding: 0 0 0 1.6rem;
  border-left: 2px solid var(--bronze);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.3rem;
  color: var(--foam-dim);
}

/* sharp-edges plate */
.plate {
  border: 1px solid color-mix(in srgb, var(--flame) 45%, var(--hairline));
  background:
    repeating-linear-gradient(-45deg,
      color-mix(in srgb, var(--flame) 7%, transparent) 0 10px,
      transparent 10px 20px);
  padding: 2rem 2.2rem;
}
.plate .kicker { margin-bottom: 1rem; display: block; }
.plate p { color: var(--foam-dim); }

/* fake chat window */
.chatmock {
  border: 1px solid var(--hairline-2);
  border-radius: 8px;
  background: var(--ink-2);
  font-size: .82rem;
  overflow: hidden;
  box-shadow: 0 30px 80px -30px rgba(0,0,0,.8);
}
.chatmock .bar {
  display: flex; align-items: center; gap: .5rem;
  padding: .6rem 1rem;
  border-bottom: 1px solid var(--hairline);
  background: var(--ink-3);
  font-family: var(--font-mono);
  font-size: .64rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--foam-faint);
}
.chatmock .bar .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--hairline-2); }
.chatmock .bar .dot.live { background: var(--glass); }
.chatmock .log { padding: 1.1rem 1.2rem; display: flex; flex-direction: column; gap: .9rem; }
.chatmock .msg { max-width: 92%; }
.chatmock .msg .who {
  font-family: var(--font-mono); font-size: .6rem; letter-spacing: .2em;
  text-transform: uppercase; color: var(--foam-faint); margin-bottom: .3rem;
}
.chatmock .msg.user { align-self: flex-end; text-align: right; }
.chatmock .msg.user .body { background: var(--ink-3); border: 1px solid var(--hairline-2); padding: .6rem .9rem; border-radius: 6px; display: inline-block; text-align: left; }
.chatmock .msg .body { color: var(--foam-dim); line-height: 1.55; }
.chatmock .tool {
  font-family: var(--font-mono); font-size: .7rem;
  border: 1px dashed var(--hairline-2); border-radius: 5px;
  padding: .5rem .8rem; color: var(--glass-dim);
}
.chatmock .tool .ok { color: var(--glass); }
.chatmock .usage {
  font-family: var(--font-mono); font-size: .62rem; letter-spacing: .1em;
  color: var(--foam-faint); border-top: 1px solid var(--hairline);
  padding-top: .6rem; display: flex; gap: 1.4rem;
}
.chatmock .usage .hit { color: var(--bronze); }

/* closer */
.closer {
  max-width: var(--w-page);
  margin: 9rem auto 0;
  padding: 0 2rem;
  text-align: center;
}
.closer p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.7rem, 3.6vw, 2.9rem);
  line-height: 1.3;
  color: var(--foam);
  max-width: 52rem;
  margin: 0 auto;
}
.closer .theta { margin: 3rem auto 0; width: 3.2rem; opacity: .8; }

/* ------------------------------------------------------------------ */
/*  docs                                                               */
/* ------------------------------------------------------------------ */

.docs-shell {
  max-width: var(--w-page);
  margin: 0 auto;
  padding: 3.5rem 2rem 0;
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: 3.5rem;
}

.docs-side { font-family: var(--font-mono); font-size: .78rem; }
.docs-side .group { margin-bottom: 2rem; }
.docs-side .group > span {
  display: block;
  font-size: .64rem;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--foam-faint);
  margin-bottom: .7rem;
}
.docs-side a {
  display: block;
  padding: .32rem 0 .32rem .9rem;
  border: none;
  border-left: 1px solid var(--hairline);
  color: var(--foam-dim);
}
.docs-side a:hover { color: var(--foam); border-left-color: var(--foam-dim); }
.docs-side a[aria-current="page"] { color: var(--flame); border-left-color: var(--flame); }
@media (min-width: 61rem) {
  .docs-side { position: sticky; top: 5.5rem; align-self: start; }
}

.doc { max-width: 46rem; padding-bottom: 4rem; }
.doc > .kicker { display: block; margin-bottom: .8rem; }
.doc h1 { font-family: var(--font-display); font-weight: 400; font-size: clamp(2.6rem, 5vw, 3.8rem); line-height: 1.02; margin: 0 0 1.2rem; }
.doc .lede { font-size: 1.25rem; color: var(--foam-dim); font-family: var(--font-display); font-style: italic; margin-bottom: 2.5rem; }
.doc h2 {
  font-size: 1.9rem;
  margin: 3.2rem 0 1rem;
  padding-top: 2.4rem;
  border-top: 1px solid var(--hairline);
}
.doc h3 { margin: 2.2rem 0 .8rem; color: var(--foam); }
.doc p, .doc li { color: var(--foam-dim); }
.doc > p:first-of-type { margin-top: 0; }

/* docs hub cards */
.doc-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 1.2rem;
  margin-top: 2.5rem;
}
.doc-cards a {
  border: 1px solid var(--hairline);
  padding: 1.6rem 1.6rem 1.4rem;
  display: block;
  transition: border-color .15s, background .15s;
}
.doc-cards a:hover { border-color: var(--flame); background: var(--ink-2); }
.doc-cards .num { font-family: var(--font-display); font-style: italic; font-size: 1.6rem; color: var(--flame); display: block; margin-bottom: .8rem; }
.doc-cards h3 { font-size: 1.35rem; margin: 0 0 .5rem; color: var(--foam); }
.doc-cards p { font-size: .92rem; color: var(--foam-faint); margin: 0; }

/* ------------------------------------------------------------------ */
/*  motion                                                             */
/* ------------------------------------------------------------------ */

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ------------------------------------------------------------------ */
/*  responsive                                                         */
/* ------------------------------------------------------------------ */

@media (max-width: 61rem) {
  .hero { grid-template-columns: 1fr; min-height: 0; padding-top: 4rem; }
  .morph-stage { order: -1; }
  .morph-stage svg { width: min(60%, 18rem); }
  .section { grid-template-columns: 1fr; gap: 1.2rem; padding-top: 4rem; }
  .section > .rail { padding-top: 1rem; display: flex; align-items: baseline; gap: 1rem; }
  .section > .rail .index { font-size: 1.8rem; margin: 0; }
  .split { grid-template-columns: 1fr; }
  .split .fig { position: static; }
  .docs-shell { grid-template-columns: 1fr; gap: 2rem; }
  .docs-side { display: flex; flex-wrap: wrap; gap: .3rem 1.4rem; }
  .docs-side .group { margin: 0; }
  .docs-side .group > span { display: none; }
  .docs-side a { border-left: none; padding: .2rem 0; }
  .site-nav { padding: .9rem 1.2rem; gap: 1rem; }
  .site-nav .links { gap: 1rem; }
}

/* ------------------------------------------------------------------ */
/*  the why — stand-first paragraph                                    */
/* ------------------------------------------------------------------ */

p.stand {
  font-size: 1.4rem;
  line-height: 1.5;
  color: var(--foam);
  margin: 0 0 1.2em;
}

/* ------------------------------------------------------------------ */
/*  tool wall — what it has scaffolded for itself                      */
/* ------------------------------------------------------------------ */

.toolwall {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 1.8em 0 .6em;
}
.toolwall span {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  color: var(--glass-dim);
  border: 1px solid var(--hairline);
  padding: .28rem .6rem;
  border-radius: 3px;
  transition: color .15s, border-color .15s;
}
.toolwall span:hover { color: var(--glass); border-color: var(--glass-dim); }
.toolwall-note {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--foam-faint);
}

/* ------------------------------------------------------------------ */
/*  screenshots — real evidence from a live instance                   */
/* ------------------------------------------------------------------ */

.shot {
  border: 1px solid var(--hairline-2);
  border-radius: 8px;
  overflow: hidden;
  background: var(--ink-2);
  box-shadow: 0 30px 80px -30px rgba(0,0,0,.8);
}
.shot img { display: block; width: 100%; }
.shot-caption {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--foam-faint);
  margin-top: .7rem;
  line-height: 1.6;
}
.shot-caption .live { color: var(--glass); }
.fig-stack > * + * { margin-top: 1.4rem; }