:root {
  --ink: #121820;
  --ink-soft: #243041;
  --steel: #2f6f8f;
  --steel-deep: #1f5169;
  --signal: #c45c26;
  --paper: #f2f4f7;
  --panel: #ffffff;
  --muted: #5a6675;
  --line: #cfd6df;
  --grid-line: rgba(47, 111, 143, 0.12);
  --radius: 6px;
  --font-display: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    linear-gradient(180deg, #e8eef3 0%, transparent 220px),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 31px,
      var(--grid-line) 32px
    ),
    var(--paper);
  line-height: 1.6;
}

a { color: var(--steel-deep); text-underline-offset: 3px; }
a:hover { color: var(--steel); }

.wrap { width: min(1100px, calc(100% - 2rem)); margin-inline: auto; }

.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(242, 244, 247, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 68px; gap: 1rem;
}
.brand {
  font-family: var(--font-display);
  font-weight: 650; font-size: 1.15rem;
  color: var(--ink); text-decoration: none; letter-spacing: -0.02em;
}
.brand small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--steel); margin-top: 0.15rem;
}
.nav { display: flex; gap: 1.15rem; flex-wrap: wrap; font-size: 0.92rem; }
.nav a { color: var(--ink-soft); text-decoration: none; }
.nav a:hover { color: var(--steel-deep); }

.hero {
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(800px 320px at 0% 0%, rgba(47, 111, 143, 0.18), transparent 60%),
    radial-gradient(600px 240px at 100% 20%, rgba(196, 92, 38, 0.08), transparent 55%),
    linear-gradient(135deg, #dfe8ef 0%, transparent 55%);
  animation: heroIn 0.7s ease-out;
}
@keyframes heroIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

.brand-mark {
  font-family: var(--font-display);
  font-weight: 650;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  color: var(--ink);
}
.hero .kicker,
.hero .brand-mark + .kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--steel-deep); margin: 0 0 0.9rem;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.8vw, 3.35rem);
  line-height: 1.1; letter-spacing: -0.03em;
  margin: 0 0 0.85rem; max-width: 14ch;
}
.hero .lede {
  font-size: 1.1rem; color: var(--muted); max-width: 52ch; margin: 0 0 2rem;
}

.doors {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 0.5rem;
}
.door {
  display: flex;
  flex-direction: column;
  min-height: 220px;
  padding: 1.35rem 1.25rem 1.2rem;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--line);
  border-top: 3px solid var(--steel);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  animation: doorIn 0.55s ease-out both;
}
.door:nth-child(1) { animation-delay: 0.08s; border-top-color: var(--steel); }
.door:nth-child(2) { animation-delay: 0.16s; border-top-color: var(--steel-deep); }
.door:nth-child(3) { animation-delay: 0.24s; border-top-color: var(--signal); }
@keyframes doorIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
.door:hover {
  transform: translateY(-3px);
  border-color: var(--steel);
  box-shadow: 0 12px 28px rgba(18, 24, 32, 0.08);
}
.door-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--steel-deep);
  margin-bottom: 0.65rem;
}
.door h2 {
  font-family: var(--font-display);
  font-size: 1.28rem;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin: 0 0 0.55rem;
  color: var(--ink);
}
.door p {
  margin: 0;
  flex: 1;
  font-size: 0.95rem;
  color: var(--muted);
}
.door-meta {
  margin-top: 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--ink-soft);
}

.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.25rem 0 0; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--radius); padding: 0.78rem 1.15rem;
  font-weight: 600; text-decoration: none; border: 1px solid transparent;
  cursor: pointer; font: inherit;
}
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--ink-soft); color: #fff; }
.btn-ghost { background: var(--panel); color: var(--ink-soft); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--steel); color: var(--steel-deep); }

.section { padding: 3rem 0; }
.section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2.8vw, 1.9rem);
  letter-spacing: -0.02em; margin: 0 0 0.55rem;
}
.section .sub { color: var(--muted); margin: 0 0 1.5rem; max-width: 54ch; }

.industry-strip {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
}
.industry-strip li {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink-soft);
}

.complement {
  background: #e4ebf1;
  border-block: 1px solid var(--line);
  padding: 2.25rem 0;
}
.complement-kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 0.5rem;
}
.complement-line {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.4vw, 1.65rem);
  letter-spacing: -0.02em;
  line-height: 1.35;
  margin: 0 0 0.5rem;
  max-width: 36ch;
}
.complement-note {
  margin: 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.price-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin: 1.5rem 0 2rem;
}
.price-tile {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1.2rem 1.15rem;
}
.price-tile h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0 0 0.35rem;
}
.price-tile .amount {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--steel-deep);
  margin: 0 0 0.5rem;
}
.price-tile p { margin: 0 0 1rem; font-size: 0.92rem; color: var(--muted); }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1.4rem 1.5rem;
  max-width: 520px;
}
.panel label { display: block; font-size: 0.88rem; font-weight: 600; margin: 0.8rem 0 0.3rem; }
.panel input, .panel select {
  width: 100%; padding: 0.72rem 0.8rem;
  border: 1px solid var(--line); border-radius: 4px;
  font: inherit; background: #fff;
}
.panel .hint { font-size: 0.8rem; color: var(--muted); margin: 0.75rem 0 0; }
.panel .msg { margin-top: 0.85rem; font-size: 0.95rem; min-height: 1.2em; }
.panel .msg.ok { color: var(--steel-deep); }
.panel .msg.err { color: #a11; }

.prose { max-width: 68ch; }
.prose h1 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  font-size: clamp(1.9rem, 3.5vw, 2.4rem);
}
.prose h2 { margin-top: 1.75rem; }
.prose li { margin: 0.35rem 0; }

.site-footer {
  margin-top: 2rem; padding: 2rem 0 2.5rem;
  border-top: 1px solid var(--line); color: var(--muted); font-size: 0.88rem;
  background: #e8eef3;
}
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; }
.site-footer a { color: var(--muted); }

@media (max-width: 860px) {
  .doors { grid-template-columns: 1fr; }
  .door { min-height: 0; }
}
@media (max-width: 640px) {
  .hero { padding-top: 2.75rem; }
  .nav { font-size: 0.85rem; gap: 0.7rem; }
  .btn { width: 100%; }
}