/* Code Blue Studio: "Blueprint" design
   Palette: blueprint blues + paper + redline accent */

:root {
  --blueprint-950: #081737;
  --blueprint-900: #0B1F4B;
  --blueprint-800: #10295E;
  --grid-line: rgba(129, 160, 240, 0.13);
  --grid-line-major: rgba(129, 160, 240, 0.22);
  --sky: #A9C0F2;          /* muted text on blue */
  --white: #F2F6FF;
  --paper: #F5F7FB;
  --card: #FFFFFF;
  --ink: #101D3D;
  --ink-soft: #46557E;
  --line: #D9E1F2;
  --blue: #2457E6;
  --redline: #FF4B2E;

  --font-display: "Archivo", system-ui, sans-serif;
  --font-body: "Instrument Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 5rem; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
}

img { max-width: 100%; display: block; }

a { color: var(--blue); }

:focus-visible {
  outline: 2px solid var(--redline);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--redline); color: #081737;
  padding: 0.5rem 1rem; z-index: 100; font-weight: 600;
}
.skip-link:focus { left: 0; }

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

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(8, 23, 55, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(129, 160, 240, 0.25);
}

.nav {
  max-width: 72rem; margin: 0 auto;
  padding: 0.9rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
}

.logo {
  font-family: var(--font-mono);
  font-weight: 500; font-size: 1rem;
  color: var(--white); text-decoration: none;
  letter-spacing: 0.02em;
}
.logo span { color: #6E96F5; }

.nav-links {
  list-style: none;
  display: flex; align-items: center; gap: 1.5rem;
}

.nav-links a {
  font-family: var(--font-mono); font-size: 0.8rem;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--sky); text-decoration: none;
  display: inline-block; padding: 0.85rem 0.25rem;
}
.nav-links a:hover { color: var(--white); }

.nav-cta {
  border: 1px solid var(--redline);
  padding: 0.6rem 0.9rem !important;
  color: #FFB4A6 !important;
  border-radius: 2px;
  transition: background 200ms, color 200ms;
}
.nav-cta:hover { background: var(--redline); color: var(--blueprint-950) !important; }

/* ---------- blueprint sheet (hero + contact) ---------- */

.sheet {
  position: relative;
  background:
    linear-gradient(var(--grid-line-major) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-major) 1px, transparent 1px),
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    radial-gradient(ellipse at 30% 20%, var(--blueprint-800), var(--blueprint-900) 55%, var(--blueprint-950));
  background-size: 96px 96px, 96px 96px, 24px 24px, 24px 24px, cover;
  color: var(--white);
}

.annotation {
  position: absolute;
  font-family: var(--font-mono); font-size: 0.7rem;
  letter-spacing: 0.1em; color: var(--sky);
  opacity: 0.85;
}
.annotation-tl { top: 1.1rem; left: 1.25rem; }
.annotation-tr { top: 1.1rem; right: 1.25rem; }

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

.hero-inner {
  max-width: 72rem; margin: 0 auto;
  padding: 8.5rem 1.25rem 4rem;
}

.eyebrow {
  font-family: var(--font-mono); font-size: 0.78rem;
  text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--blue); margin-bottom: 1rem;
}
.sheet .eyebrow, .contact .eyebrow { color: #7FA4F0; }

.hero h1 {
  font-family: var(--font-display);
  font-weight: 800; font-stretch: 118%;
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  line-height: 1.04; letter-spacing: -0.015em;
  max-width: 17ch;
}
.hero h1 em { font-style: normal; color: #7FA4F0; }

.hero-sub {
  margin-top: 1.5rem; max-width: 44ch;
  font-size: 1.1rem; color: var(--sky);
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2.25rem; }

.btn {
  display: inline-block;
  font-family: var(--font-mono); font-size: 0.85rem;
  text-transform: uppercase; letter-spacing: 0.08em;
  text-decoration: none;
  padding: 0.85rem 1.6rem; border-radius: 2px;
  transition: transform 200ms, background 200ms, color 200ms, border-color 200ms;
  cursor: pointer;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary { background: var(--redline); color: #081737; font-weight: 500; }
.btn-primary:hover { background: #FF6448; }

.btn-ghost {
  border: 1px solid rgba(169, 192, 242, 0.5);
  color: var(--white);
}
.btn-ghost:hover { border-color: var(--white); }

/* title block: the drawing's signature */

.title-block-wrap {
  max-width: 72rem; margin: 0 auto;
  padding: 0 1.25rem 3.5rem;
}
.title-block {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
  gap: 1px;
  background: rgba(129, 160, 240, 0.35);
  border: 1px solid rgba(129, 160, 240, 0.35);
  font-family: var(--font-mono);
}
.title-block > div {
  background: var(--blueprint-900);
  padding: 0.7rem 0.95rem;
}
.title-block dt {
  color: #7FA4F0; text-transform: uppercase; letter-spacing: 0.12em;
  font-size: 0.65rem;
}
.title-block dd { color: var(--white); font-size: 0.82rem; margin-top: 0.25rem; }
.title-block .status::before {
  content: ""; display: inline-block;
  width: 0.5rem; height: 0.5rem; border-radius: 50%;
  background: #4ADE80; margin-right: 0.5rem;
}

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

.section { padding: 5.5rem 0; }
.section-alt { background: var(--card); border-block: 1px solid var(--line); }

.container { max-width: 72rem; margin: 0 auto; padding: 0 1.25rem; }

h2 {
  font-family: var(--font-display);
  font-weight: 800; font-stretch: 115%;
  font-size: clamp(1.7rem, 3.5vw, 2.5rem);
  line-height: 1.15; letter-spacing: -0.01em;
}

.section-sub { margin-top: 0.9rem; max-width: 62ch; color: var(--ink-soft); }

/* work grid */

.work-grid {
  list-style: none;
  display: grid; gap: 1.5rem;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  margin-top: 2.5rem;
}

.work-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  transition: transform 200ms, border-color 200ms, box-shadow 200ms;
}
.work-card:hover {
  transform: translateY(-4px);
  border-color: var(--blue);
  box-shadow: 0 12px 28px rgba(16, 29, 61, 0.10);
}
.work-card img { width: 100%; aspect-ratio: 8 / 5; object-fit: cover; }

.work-text { padding: 1.1rem 1.2rem 1.3rem; }
.work-index {
  font-family: var(--font-mono); font-size: 0.68rem;
  color: var(--blue); letter-spacing: 0.12em;
}
.work-text h3 {
  font-family: var(--font-display); font-weight: 700;
  font-size: 1.1rem; margin-top: 0.3rem;
}
.work-text p:last-child { margin-top: 0.35rem; font-size: 0.92rem; color: var(--ink-soft); }

/* services */

.services-grid {
  display: grid; gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  margin-top: 2.5rem;
}

.service-card {
  border: 1px solid var(--line); border-radius: 4px;
  padding: 1.75rem 1.6rem;
  background: var(--paper);
  border-top: 3px solid var(--blue);
}
.service-card h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; }
.service-tag {
  font-family: var(--font-mono); font-size: 0.75rem;
  color: var(--blue); margin: 0.4rem 0 0.9rem;
  letter-spacing: 0.03em;
}
.service-card p:last-child { color: var(--ink-soft); font-size: 0.95rem; }

.tech-label {
  font-family: var(--font-mono); font-size: 0.78rem;
  text-transform: uppercase; letter-spacing: 0.14em;
  color: var(--ink-soft); margin-top: 3rem;
}
.tech-list {
  list-style: none;
  display: flex; flex-wrap: wrap; gap: 0.6rem;
  margin-top: 1rem;
}
.tech-list li {
  font-family: var(--font-mono); font-size: 0.8rem;
  border: 1px solid var(--line); border-radius: 2px;
  background: var(--card);
  padding: 0.35rem 0.8rem; color: var(--ink);
}

/* values */

.values-grid {
  display: grid; gap: 1.25rem 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  margin-top: 2.5rem;
}
.value {
  border-left: 2px solid var(--blue);
  padding-left: 1.1rem;
}
.value dt { font-family: var(--font-display); font-weight: 700; font-size: 1.02rem; }
.value dd { margin-top: 0.3rem; color: var(--ink-soft); font-size: 0.95rem; }

/* ---------- contact ---------- */

.sheet-contact { padding: 5.5rem 0 6rem; }
.contact h2 { max-width: 22ch; }

.contact-mail {
  display: inline-block;
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  color: var(--white); text-decoration: none;
  border-bottom: 2px solid var(--redline);
  margin-top: 1.5rem;
}
.contact-mail:hover { color: #FFB4A6; }

.contact-cols {
  display: grid; gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  margin: 3rem 0 2.75rem;
  max-width: 52rem;
}
.contact-cols h3 {
  font-family: var(--font-mono); font-size: 0.75rem;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: #7FA4F0; margin-bottom: 0.5rem; font-weight: 500;
}
.contact-cols p { color: var(--sky); font-size: 0.95rem; }

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

.site-footer {
  background: var(--blueprint-950);
  color: var(--sky);
  font-family: var(--font-mono); font-size: 0.75rem;
  letter-spacing: 0.05em;
  padding: 1.5rem 1.25rem;
  text-align: center;
  border-top: 1px solid rgba(129, 160, 240, 0.2);
}

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

@media (max-width: 40rem) {
  .nav { justify-content: center; }
  .nav-links { gap: 1rem; }
  .hero-inner { padding-top: 7rem; }
  .annotation-tr { display: none; }
  .section { padding: 3.5rem 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}