/* Alpha Delta Studio — design tokens
   Swiss/editorial: white ground, ink text, royal-blue accent,
   mono eyebrows + labels, thin hairline borders. */

:root {
  --bg: #ffffff;
  --bg-soft: #f5f6f8;
  --ink: #0d0f14;
  --ink-soft: #5a6170;
  --line: #e4e7ec;
  --blue: #2743ec;
  --blue-dark: #1e35c4;
  --radius: 4px;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "JetBrains Mono", "IBM Plex Mono", "Fira Code",
    Menlo, Consolas, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

.mono { font-family: var(--mono); font-size: 12px; letter-spacing: 0.02em; }
.muted { color: var(--ink-soft); }
.blue { color: var(--blue); }

/* Eyebrow labels — ◆ ALPHA DELTA LLC */
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 28px;
}
.diamond { color: var(--blue); font-size: 10px; margin-right: 6px; }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 15px; }
.brand .diamond { font-size: 14px; margin: 0; }
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 13.5px; font-weight: 500; }
.nav-links a:not(.btn):hover { color: var(--blue); }

/* Buttons + links */
.btn {
  display: inline-block;
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  white-space: nowrap;
}
.btn-pill {
  background: var(--blue);
  color: #fff;
  padding: 10px 20px;
  border-radius: 999px;
}
.btn-pill:hover { background: var(--blue-dark); }
.btn-dark {
  background: var(--ink);
  color: #fff;
  padding: 14px 24px;
  border-radius: 6px;
  font-size: 14px;
}
.btn-dark:hover { background: #23262e; }
.link-arrow { color: var(--blue); font-weight: 600; font-size: 14px; }
.link-arrow:hover { text-decoration: underline; }

/* Sections */
.section { padding: 88px 0; }
.band {
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
section[id] { scroll-margin-top: 64px; }

/* Hero */
.hero-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 64px;
  align-items: start;
}
h1 {
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 14em;
  margin-bottom: 24px;
}
.lede {
  color: var(--ink-soft);
  font-size: 16px;
  max-width: 34em;
  margin-bottom: 36px;
}
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 20px 28px; margin-top: 8px; }

.hero-card {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  padding: 32px 28px;
  margin-top: 44px;
}
.gloss { display: flex; align-items: baseline; gap: 14px; margin-bottom: 18px; }
.glyph { color: var(--blue); font-size: 24px; font-weight: 700; line-height: 1; }
.hero-card hr { border: 0; border-top: 1px solid var(--line); margin: 24px 0; }
.hero-card .mono { line-height: 1.8; }

/* App cards */
.app-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.card {
  display: block;
  border: 1px solid var(--line);
  background: var(--bg);
  transition: border-color 0.15s ease;
}
a.card:hover { border-color: var(--ink); }

.card-visual {
  background: var(--bg-soft);
  border-bottom: 1px solid var(--line);
  height: 300px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 40px;
  overflow: hidden;
}
.phone {
  width: 210px;
  height: 430px;
  border: 4px solid var(--ink);
  border-radius: 36px;
  background:
    repeating-linear-gradient(135deg, #ebecef 0 12px, #f6f7f9 12px 24px);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.phone::before {
  content: "";
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 16px;
  border-radius: 10px;
  background: var(--ink);
}
.phone-label {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #a2a8b3;
  text-align: center;
  line-height: 1.9;
  margin-top: -140px; /* keep label visible in the cropped visual */
}

.card-body { padding: 24px 24px 28px; }
.card-meta {
  display: flex;
  gap: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 10.5px;
  margin-bottom: 12px;
}
.card-body h3 { font-size: 22px; letter-spacing: -0.01em; margin-bottom: 8px; }
.card-desc { color: var(--ink-soft); font-size: 14px; max-width: 36em; }
.chips { display: flex; gap: 8px; margin-top: 18px; }
.chip {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 5px 9px;
}
.works-count { margin-top: 18px; letter-spacing: 0.12em; text-transform: uppercase; font-size: 10px; }

/* Detail page visual */
.detail-visual { border: 1px solid var(--line); }

/* Principles */
.principles { border-top: 1px solid var(--line); }
.principle {
  display: grid;
  grid-template-columns: 64px 280px 1fr;
  gap: 24px;
  align-items: baseline;
  padding: 30px 0;
  border-bottom: 1px solid var(--line);
}
.principle h3 { font-size: 19px; letter-spacing: -0.01em; }
.principle p { color: var(--ink-soft); font-size: 14px; max-width: 40em; }

/* About */
.about-statement {
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.4;
  letter-spacing: -0.015em;
  font-weight: 700;
  max-width: 24em;
  margin-bottom: 24px;
}
.about-sub { color: var(--ink-soft); font-size: 14.5px; max-width: 30em; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: center;
}
.contact-grid h2 { font-size: 26px; letter-spacing: -0.015em; margin-bottom: 10px; }
.contact-grid .muted { font-size: 14px; }
.contact-side { text-align: right; }
.contact-email {
  color: var(--blue);
  font-size: 19px;
  font-weight: 700;
  display: inline-block;
  margin-bottom: 10px;
}
.contact-email:hover { text-decoration: underline; }
.contact-side .mono {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

/* Footer */
.footer { padding: 28px 0; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; }

/* Responsive */
@media (max-width: 860px) {
  .section { padding: 60px 0; }
  .hero-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-card { margin-top: 0; }
  .app-grid { grid-template-columns: 1fr; }
  .principle { grid-template-columns: 48px 1fr; }
  .principle p { grid-column: 2; }
  .contact-side { text-align: left; }
  .nav-links { gap: 18px; }
  .nav-links a:not(.btn) { display: none; }
}

/* App detail — small API host note under the actions */
.service-note { margin-top: 14px; font-size: 13px; }