/*
Theme Name: Cloud Cortex
Description: Single-purpose theme for Cloud Cortex (2026) Ltd. Deliberately small: one page, no page builder, no framework.
Version: 1.0.0
Author: Cloud Cortex (2026) Ltd
*/

:root {
  --ink: #12141a;
  --ink-soft: #4a4f5c;
  --ink-faint: #767c8b;
  --line: #e4e6ec;
  --paper: #ffffff;
  --paper-alt: #f7f8fa;
  --accent: #2b5cff;
  --accent-dark: #1e46cc;
  --radius: 10px;
  --wrap: 1120px;
  --s1: .5rem; --s2: .75rem; --s3: 1rem; --s4: 1.5rem; --s5: 2rem; --s6: 3rem; --s7: 5rem;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); }
.wrap { width: min(var(--wrap), calc(100% - 2.5rem)); margin-inline: auto; }

/* --- header --- */
.site-head {
  position: sticky; top: 0; z-index: 10;
  background: rgba(255,255,255,.88);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.site-head .wrap { display: flex; align-items: center; gap: var(--s4); min-height: 4.25rem; }
.brand { font-weight: 700; letter-spacing: -.02em; font-size: 1.0625rem; color: var(--ink); text-decoration: none; }
.brand span { color: var(--accent); }
.nav { margin-left: auto; display: flex; gap: var(--s4); align-items: center; }
.nav a { color: var(--ink-soft); text-decoration: none; font-size: .9375rem; font-weight: 500; }
.nav a:hover { color: var(--ink); }
@media (max-width: 640px) { .nav a.hide-sm { display: none; } }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .7rem 1.15rem; border-radius: var(--radius);
  background: var(--accent); color: #fff; text-decoration: none;
  font-weight: 600; font-size: .9375rem; border: 0; cursor: pointer;
}
.btn:hover { background: var(--accent-dark); }
.btn--ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn--ghost:hover { background: var(--paper-alt); }

/* --- hero --- */
.hero { padding: var(--s7) 0 var(--s6); }
.hero h1 {
  margin: 0 0 var(--s4);
  font-size: clamp(2.25rem, 6vw, 3.9rem);
  line-height: 1.05; letter-spacing: -.035em; font-weight: 700;
  max-width: 18ch;
}
.hero p.lede { margin: 0 0 var(--s5); font-size: clamp(1.0625rem, 2vw, 1.3rem); color: var(--ink-soft); max-width: 56ch; }
.hero-actions { display: flex; gap: var(--s2); flex-wrap: wrap; }

/* --- sections --- */
section { padding: var(--s6) 0; }
.band { background: var(--paper-alt); border-block: 1px solid var(--line); }
.eyebrow {
  margin: 0 0 var(--s2);
  font-size: .75rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--accent);
}
h2 { margin: 0 0 var(--s4); font-size: clamp(1.6rem, 3.2vw, 2.25rem); line-height: 1.15; letter-spacing: -.025em; }
h3 { margin: 0 0 var(--s1); font-size: 1.0625rem; letter-spacing: -.01em; }
p { margin: 0 0 var(--s3); }
.muted { color: var(--ink-soft); }

.grid { display: grid; gap: var(--s4); grid-template-columns: repeat(auto-fit, minmax(255px, 1fr)); }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--s4); }
.band .card { background: var(--paper); }
.card p { margin: 0; color: var(--ink-soft); font-size: .9375rem; }
.card .num { display: block; font-size: .75rem; font-weight: 700; color: var(--accent); margin-bottom: var(--s2); letter-spacing: .08em; }

.steps { counter-reset: step; display: grid; gap: var(--s4); grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.step { border-top: 2px solid var(--accent); padding-top: var(--s3); }
.step h3 { margin-bottom: var(--s1); }
.step p { color: var(--ink-soft); font-size: .9375rem; margin: 0; }

/* --- contact --- */
.contact-grid { display: grid; gap: var(--s5); grid-template-columns: 1.1fr .9fr; align-items: start; }
@media (max-width: 800px) { .contact-grid { grid-template-columns: 1fr; } }
.detail { display: flex; gap: var(--s3); padding: var(--s3) 0; border-bottom: 1px solid var(--line); }
.detail:last-child { border-bottom: 0; }
.detail dt { margin: 0; width: 7.5rem; flex: none; color: var(--ink-faint); font-size: .875rem; }
.detail dd { margin: 0; font-size: .9375rem; }

/* --- footer --- */
.site-foot { border-top: 1px solid var(--line); padding: var(--s5) 0; color: var(--ink-faint); font-size: .875rem; }
.site-foot p { margin: 0 0 var(--s1); max-width: 70ch; }
.site-foot a { color: var(--ink-soft); }

:where(a, button):focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }