/* Red's Holding public site
   One stylesheet, three themes: holding (red), it (blue), 3d (amber). */

:root {
  --bg: #F4F6F8;
  --panel: #FFFFFF;
  --ink: #18202B;
  --muted: #566170;
  --line: #D9DFE5;

  --red: #C62E24;
  --blue: #2456A6;
  --blue-deep: #17386F;
  --blue-soft: #E3ECF9;
  --amber: #F2A900;
  --amber-deep: #8A5A00;
  --amber-soft: #FFF1CC;

  --display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --body: "Public Sans", system-ui, "Segoe UI", sans-serif;

  /* theme defaults (holding) */
  --accent: var(--red);
  --on-accent: #FFFFFF;
  --accent-text: var(--red);
}

.theme-it {
  --accent: var(--blue);
  --on-accent: #FFFFFF;
  --accent-text: var(--blue);
}

.theme-3d {
  --accent: var(--amber);
  --on-accent: var(--ink);
  --accent-text: var(--amber-deep);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--display);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
}

p { margin: 0 0 1em; max-width: 62ch; }

a { color: inherit; }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.skip {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--ink);
  color: #fff;
  padding: 8px 14px;
  border-radius: 8px;
  z-index: 10;
}
.skip:focus { left: 8px; }

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- header ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 32px;
  padding-top: 20px;
  padding-bottom: 20px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.wordmark svg { width: 34px; height: 20px; flex: none; }

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  font-size: 0.95rem;
  font-weight: 500;
}
.site-nav a {
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover { border-bottom-color: var(--accent); }
.site-nav a[aria-current="page"] { border-bottom-color: var(--accent); }

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

.hero { padding: 72px 0 16px; }

.hero h1 {
  font-weight: 800;
  font-size: clamp(2.5rem, 6.4vw, 4.7rem);
  max-width: 24ch;
}
.hero h1 .line { display: block; }

.hero .lede {
  margin-top: 24px;
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 54ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  display: inline-block;
  padding: 0.85rem 1.4rem;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  background: var(--accent);
  color: var(--on-accent);
  border: 2px solid var(--accent);
}
.btn:hover { filter: brightness(0.94); }
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
.btn.ghost:hover { background: rgba(24, 32, 43, 0.06); filter: none; }

/* ---------- the snake ---------- */

.snake {
  display: block;
  overflow: visible;
  width: 100%;
  height: auto;
  margin: 8px 0 0;
}
.snake .seg {
  transform-box: fill-box;
  transform-origin: center;
  animation: seg-in 0.5s cubic-bezier(0.2, 0.8, 0.3, 1) both;
  animation-delay: calc(var(--i) * 45ms);
}
@keyframes seg-in {
  from { opacity: 0; transform: scale(0.5); }
  to   { opacity: 1; transform: scale(1); }
}
@media (prefers-reduced-motion: reduce) {
  .snake .seg { animation: none; }
}

.seg-a { fill: var(--blue); }
.seg-b { fill: var(--amber); }
.seg-head { fill: var(--red); }
.snake .eye { fill: #fff; }
.snake .pupil { fill: var(--ink); }

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

.section {
  padding: 64px 0;
}
.section + .section { border-top: 1px solid var(--line); }

.section-head {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 24px 48px;
  align-items: start;
}
.section-head h2 {
  font-weight: 800;
  font-size: clamp(1.7rem, 3.2vw, 2.3rem);
}

/* two business blocks on the holding page */

.duo {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 20px;
  padding: 48px 0 8px;
}
.biz {
  border-radius: 20px;
  padding: 36px 36px 32px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.biz h2 {
  font-weight: 800;
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  margin-bottom: 14px;
}
.biz p { color: inherit; opacity: 0.9; }
.biz ul {
  list-style: none;
  padding: 0;
  margin: 8px 0 28px;
  display: grid;
  gap: 8px;
  font-weight: 500;
}
.biz li { padding-left: 22px; position: relative; }
.biz li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: currentColor;
}
.biz .btn { margin-top: auto; }

.biz-it {
  background: var(--blue-soft);
  border: 1px solid #C5D6F0;
  color: var(--blue-deep);
}
.biz-it .btn { background: var(--blue); border-color: var(--blue); color: #fff; }

.biz-3d {
  background: var(--amber);
  color: var(--ink);
}
.biz-3d .btn { background: var(--ink); border-color: var(--ink); color: #fff; }

/* label + text rows (services, terms, contact) */

.rows { border-top: 1px solid var(--ink); margin-top: 8px; }
.row {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 12px 48px;
  padding: 32px 0;
  border-bottom: 1px solid var(--line);
}
.row h3 {
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--accent-text);
}
.row p:last-child { margin-bottom: 0; }

.ticks {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  display: grid;
  gap: 6px;
}
.ticks li { padding-left: 24px; position: relative; }
.ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--accent);
}

.contact-line {
  font-size: 1.15rem;
  font-weight: 600;
}
.contact-line a { color: var(--accent-text); text-underline-offset: 4px; }
.small { color: var(--muted); font-size: 0.95rem; }

/* 3D page hero block */

.hero-block {
  background: var(--amber);
  color: var(--ink);
  border-bottom: 1px solid #D89B00;
}
.hero-block .lede { color: #3A3320; }
.hero-block .btn { background: var(--ink); border-color: var(--ink); color: #fff; }
.hero-block .btn.ghost { background: transparent; color: var(--ink); }
.hero-block .snake .seg-a { fill: var(--ink); }
.hero-block .snake .seg-b { fill: #FFFFFF; }

.theme-it .snake .seg-a { fill: var(--blue); }
.theme-it .snake .seg-b { fill: var(--blue-deep); }
.theme-it .snake .seg-head { fill: var(--blue); }

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

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 0.92rem;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
}
.site-footer a { text-underline-offset: 3px; }

/* ---------- small screens ---------- */

@media (max-width: 820px) {
  .hero { padding-top: 48px; }
  .duo { grid-template-columns: 1fr; padding-top: 32px; }
  .biz { padding: 28px 24px; }
  .section { padding: 48px 0; }
  .section-head,
  .row { grid-template-columns: 1fr; gap: 10px; }
  .row { padding: 26px 0; }
}

/* ---------- technology hub ---------- */

.duo.even { grid-template-columns: 1fr 1fr; }

.biz-web {
  background: var(--blue-deep);
  color: #fff;
}
.biz-web .btn { background: #fff; border-color: #fff; color: var(--blue-deep); }

.contact-line.sub { font-size: 1rem; font-weight: 500; margin-bottom: 0.5em; }
.contact-group { margin-top: 20px; }
.contact-group .small { margin-bottom: 10px; }

@media (max-width: 820px) {
  .duo.even { grid-template-columns: 1fr; }
}