/* CADCLAW — landing page
   Sunnyday Technologies canonical brand palette.
   Brand colors: #ffffff (white), #97d700 (green), #013a73 (navy).
   Web typography: Orbitron (display) + Inter (body) + JetBrains Mono (code).
   Print/slide typography: Nulshock Bd + Sifonn Pro (not loaded here — licensed channel).
   CADCLAW logo keeps its orange as the one warm accent on the site. */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Raleway:wght@300;400;500;600&family=IBM+Plex+Mono:wght@300;400;500&display=swap');

:root {
  /* Brand — canonical, from Sunnyday Tech brand guide */
  --brand-navy:   #013a73;
  --brand-green:  #97d700;
  --brand-white:  #ffffff;

  /* Derived palette — backgrounds */
  --navy-deep:   #060d14;   /* darkest — body bg */
  --navy:        #013a73;   /* canonical brand blue */
  --navy-2:      #0f2035;   /* raised surfaces */
  --navy-3:      #1a3350;   /* borders */
  --navy-glow:   rgba(151, 215, 0, 0.08);

  /* Derived palette — greens */
  --green:       #97d700;   /* canonical brand green */
  --green-hi:    #aef03a;   /* hover / bright */
  --green-dim:   #5c8400;   /* muted / disabled */

  /* Text — on dark bg */
  --ink:         #f0f4f7;
  --ink-dim:     #c2d4e0;
  --ink-faint:   #6a8faa;

  /* Rules */
  --rule:        #1a3350;
  --rule-soft:   #0b1824;

  /* Code panel */
  --code-bg:     #0b1824;

  /* Typography — matches M3-CRETE / Open3DCP */
  --mono:    "IBM Plex Mono", "SF Mono", Consolas, Menlo, monospace;
  --sans:    "Raleway", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;
  --display: "Orbitron", "Arial Black", sans-serif;
}

html, body { font-weight: 300; }

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--navy-deep);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--green); text-decoration: none; }
a:hover { color: var(--green-hi); text-decoration: underline; }

code, pre, .mono { font-family: var(--mono); }

code {
  background: var(--code-bg);
  color: var(--green-hi);
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 0.92em;
  border: 1px solid var(--rule-soft);
}

pre.code {
  background: var(--code-bg);
  border: 1px solid var(--rule-soft);
  border-left: 3px solid var(--green);
  border-radius: 4px;
  padding: 18px 22px;
  overflow-x: auto;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink);
  margin: 18px 0;
}
pre.code code { background: none; border: none; padding: 0; color: inherit; }
pre.code .g { color: var(--ink-faint); font-style: italic; }
pre.code .k { color: var(--green-hi); }
pre.code .o { color: #e6d08a; }
pre.code .c { color: var(--green); }

/* ---------------- nav ---------------- */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 40px;
  border-bottom: 1px solid var(--rule);
  background: var(--navy-deep);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(6px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand img {
  height: 42px;
  display: block;
  background: #0f0f0f;
  padding: 4px 10px;
  border-radius: 3px;
  border: 1px solid var(--rule-soft);
}
.brand-text {
  font-family: var(--display);
  font-size: 22px;
  color: var(--green);
  letter-spacing: 0.08em;
}
.nav nav { display: flex; gap: 28px; align-items: center; }
.nav nav a {
  color: var(--ink-dim);
  font-family: var(--mono);
  font-size: 13.5px;
  letter-spacing: 0.02em;
}
.nav nav a:hover { color: var(--green); text-decoration: none; }
.nav nav a.ghost {
  color: var(--green);
  border: 1px solid var(--navy-3);
  padding: 6px 14px;
  border-radius: 3px;
}
.nav nav a.ghost:hover {
  background: var(--green);
  color: var(--navy-deep);
  border-color: var(--green);
}

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

main { max-width: 1180px; margin: 0 auto; padding: 0 40px; }

.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0 60px;
  border-bottom: 1px solid var(--rule);
}
.hero h1 {
  font-family: var(--display);
  font-size: 52px;
  line-height: 1.08;
  font-weight: 700;
  margin: 0 0 24px;
  color: var(--ink);
  letter-spacing: 0.005em;
  text-transform: uppercase;
}
.hero h1::before {
  content: "> ";
  color: var(--green);
}
.tag {
  font-size: 19px;
  color: var(--ink-dim);
  margin: 0 0 32px;
  max-width: 56ch;
  line-height: 1.55;
}
.tag code { font-size: 0.95em; }

.cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.cta {
  display: inline-block;
  padding: 12px 22px;
  border: 1px solid var(--navy-3);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 14px;
  border-radius: 3px;
  letter-spacing: 0.02em;
  transition: all 0.15s ease;
}
.cta:hover { border-color: var(--green); color: var(--green); text-decoration: none; }
.cta.primary {
  background: var(--green);
  color: var(--navy-deep);
  border-color: var(--green);
  font-weight: 700;
}
.cta.primary:hover {
  background: var(--green-hi);
  border-color: var(--green-hi);
  color: var(--navy-deep);
}
.sub {
  font-size: 13px;
  color: var(--ink-faint);
  font-family: var(--mono);
  margin-top: 12px;
}

.hero-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.hero-mark img {
  width: 100%;
  max-width: 420px;
  height: auto;
  display: block;
  background: #0f0f0f;
  padding: 30px 24px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}

.output-media {
  max-width: 820px;
  margin: 30px auto 0;
}
.output-media img {
  width: 100%;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--code-bg);
  display: block;
}
.caption {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-faint);
  text-align: center;
  margin: 12px 0 0;
}

/* ---------------- stat strip ---------------- */

.strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-bottom: 1px solid var(--rule);
  background: linear-gradient(180deg, var(--navy-deep), var(--code-bg));
}
.stat {
  padding: 32px 20px;
  text-align: center;
  border-right: 1px solid var(--rule);
}
.stat:last-child { border-right: none; }
.stat .num {
  display: block;
  font-family: var(--display);
  font-size: 30px;
  font-weight: 700;
  color: var(--green);
  letter-spacing: 0.01em;
}
.stat .lbl {
  display: block;
  font-size: 12px;
  color: var(--ink-dim);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  margin-top: 8px;
  font-family: var(--mono);
}

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

.section {
  padding: 80px 0;
  border-bottom: 1px solid var(--rule);
}
.section.dark { background: linear-gradient(180deg, var(--navy-deep), var(--code-bg)); }

.section h2 {
  font-family: var(--display);
  font-size: 30px;
  margin: 0 0 14px;
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
.section h2::before {
  content: "// ";
  color: var(--green);
  font-family: var(--mono);
}
.section h3 {
  font-family: var(--display);
  font-size: 16px;
  margin: 0 0 8px;
  color: var(--green);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.lede {
  font-size: 18px;
  color: var(--ink-dim);
  max-width: 70ch;
  margin: 18px 0;
}
.lede strong { color: var(--ink); }
.muted { color: var(--ink-faint); font-size: 14px; }

/* gates grid */
.gates {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin: 40px 0 30px;
}
.gate {
  background: var(--code-bg);
  border: 1px solid var(--rule-soft);
  border-top: 2px solid var(--green);
  padding: 22px 20px;
  border-radius: 2px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.gate:hover {
  border-color: var(--green);
  transform: translateY(-2px);
}
.gate p { margin: 0; font-size: 14px; color: var(--ink-dim); line-height: 1.55; }

.callout {
  border: 1px solid var(--navy-3);
  background: var(--navy-glow);
  padding: 18px 22px;
  border-left: 3px solid var(--green);
  border-radius: 3px;
  margin-top: 28px;
  color: var(--ink);
  font-size: 15px;
}
.callout strong { color: var(--green); }

/* audience grid */
.audience {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-top: 30px;
}
.audience > div {
  border-left: 2px solid var(--green);
  padding: 6px 0 6px 18px;
}
.audience p { margin: 6px 0 0; color: var(--ink-dim); }

/* origin list */
.origin { list-style: none; padding: 0; margin: 20px 0; }
.origin li {
  font-family: var(--mono);
  font-size: 14.5px;
  padding: 8px 0 8px 24px;
  color: var(--ink-dim);
  position: relative;
}
.origin li::before {
  content: "✓";
  color: var(--green);
  position: absolute;
  left: 0;
  font-weight: 700;
}
.origin li strong { color: var(--ink); }

/* ---------------- footer ---------------- */

footer {
  border-top: 1px solid var(--rule);
  background: var(--code-bg);
  padding: 50px 40px 30px;
  margin-top: 0;
}
.foot-grid {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}
.foot-grid h4 {
  font-family: var(--display);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--green);
  margin: 0 0 14px;
  font-weight: 700;
}
.foot-grid a {
  display: block;
  color: var(--ink-dim);
  font-size: 14px;
  padding: 3px 0;
}
.foot-grid a:hover { color: var(--green); text-decoration: none; }
.foot-grid p { margin: 0 0 8px; font-size: 14px; color: var(--ink-dim); }

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

@media (max-width: 900px) {
  .nav { padding: 12px 20px; }
  .nav nav { gap: 16px; }
  .nav nav a:not(.ghost) { display: none; }
  main { padding: 0 20px; }
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 50px 0 40px;
  }
  .hero h1 { font-size: 36px; }
  .tag { font-size: 17px; }
  .strip { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--rule); }
  .gates { grid-template-columns: 1fr 1fr; }
  .audience { grid-template-columns: 1fr; }
  .section { padding: 50px 0; }
  .section h2 { font-size: 24px; }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  footer { padding: 36px 20px 24px; }
}
@media (max-width: 520px) {
  .gates { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  pre.code { padding: 14px 16px; font-size: 12.5px; }
}

/* v0.6 additions */
.muted-strip {
  text-align: center;
  font-size: 13px;
  color: var(--ink-dim);
  margin: 14px auto 0;
  max-width: 720px;
  padding: 0 20px;
}

.gate.new {
  border-color: var(--green);
  position: relative;
}

.badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--green);
  padding: 2px 7px;
  border-radius: 3px;
  margin-left: 8px;
  vertical-align: middle;
}

.not-prove-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
}
.not-prove-list li {
  border-left: 2px solid var(--green);
  padding: 8px 0 8px 16px;
  margin-bottom: 14px;
  color: var(--ink-dim);
  line-height: 1.55;
  font-size: 15px;
}
.not-prove-list li strong {
  color: var(--ink);
}

/* 2026-05-07: Sunnyday open-source family refresh.
   Same brand system as Sunn3D/CEMFORGE, with a looser project-hub tone. */
:root {
  --navy-deep: #f7f8f5;
  --navy: #013a73;
  --navy-2: #ffffff;
  --navy-3: #d9dfdf;
  --green: #97d700;
  --green-hi: #a8ee00;
  --green-dim: #6b7b2f;
  --ink: #071421;
  --ink-dim: #4b5560;
  --ink-faint: #5c6670;
  --rule: #d9dfdf;
  --rule-soft: #e6e9e7;
  --code-bg: #e6e9e7;
}

html,
body {
  background: #f7f8f5;
  color: #071421;
}

.nav {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: #d9dfdf;
}

.hero,
.strip,
.section,
footer {
  border-color: #d9dfdf;
}

.gate,
.callout,
.audience-card,
.output-media,
pre.code {
  background: #ffffff;
  border-color: #d9dfdf;
}

.section.dark {
  background: #e6e9e7;
}

.hero h1,
.section h2,
.gate h3,
.audience-card h3,
.foot-grid h4 {
  color: #013a73;
}

.tag,
.lede,
.gate p,
.audience-card p,
.not-prove-list li,
.foot-grid p,
.foot-grid a,
.muted-strip {
  color: #4b5560;
}

a,
.nav nav a.ghost,
.hero h1::before {
  color: #013a73;
}

a:hover,
.nav nav a:hover {
  color: #071421;
}

.cta.primary,
.nav nav a.ghost:hover {
  background: #97d700;
  color: #071421;
  border-color: #97d700;
}

/* 2026-05-26 readability pass: body-level text (captions, sub-heads, emphasis
   lead-ins) must be dark, high-contrast, and in the readable body font. Green
   stays for NON-text accents only (borders, dots, badges, the "//" h2 marker).
   Green text on white/grey is hard to read; this keeps learning material legible. */
.section h3 { color: #013a73; }
.callout strong { color: #013a73; }
.caption,
.output-media .caption,
.muted-strip {
  color: #33404a;
  font-family: var(--sans);
}

/* 2026-05-27 readability pass 2 — code chips + muted text on the light theme.
   Inline code was bright green (--green-hi) on a light-grey chip; the syntax
   classes and muted strips were tuned for the old dark theme. Recolor for high
   contrast on white/grey while keeping a code feel. */
code { color: #013a73; }              /* inline code: navy on grey (was bright green) */
.muted { color: #33404a; }            /* e.g. the "Exit codes:" line */
pre.code .g { color: #4a5560; }       /* comments */
pre.code .k { color: #013a73; }       /* keywords (was bright green) */
pre.code .c { color: #2f6b1e; }       /* values / strings (was bright green) */
pre.code .o { color: #9a6a00; }       /* numbers / operators (was pale tan) */