/* =========================================================
   DecisionPoint Apps — suite landing page
   Design language: brushed steel + deep void, taken from the
   compass app icon. Instrument-like, weighty, monochrome with
   metallic highlights. Display serif for "answers", mono for
   instrument markings, sans for body.
   ========================================================= */

:root {
  --void:         #0a0a0c;
  --char:         #131318;
  --grain:        #1c1c22;

  --steel-deep:   #3a3d42;
  --steel:        #6e7278;
  --steel-light:  #a8acb1;
  --steel-bright: #d4d8dc;
  --steel-glow:   #e8ecf0;

  --ink:          #e6e8eb;
  --ink-soft:     #a0a4a9;
  --ink-muted:    #6b6e73;

  --line:         rgba(168, 172, 177, 0.12);
  --line-strong:  rgba(168, 172, 177, 0.28);

  --metal-text:
    linear-gradient(180deg,
      #d4d8dc 0%,
      #a8acb1 30%,
      #6e7278 55%,
      #a8acb1 80%,
      #d4d8dc 100%);
  --metal-rule:
    linear-gradient(90deg,
      transparent 0%,
      #6e7278 25%,
      #d4d8dc 50%,
      #6e7278 75%,
      transparent 100%);

  --radius: 4px;
  --container: 1120px;
  --font-display: "Cormorant Garamond", serif;
  --font-mono:    "IBM Plex Mono", monospace;
  --font-body:    "Space Grotesk", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--void);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  background:
    radial-gradient(ellipse at 50% -5%, rgba(168, 172, 177, 0.06) 0%, transparent 55%),
    var(--void);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  width: min(var(--container), 100% - 2.5rem);
  margin: 0 auto;
}

/* ── shared text styles ── */

.eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--steel-light);
}

.lead {
  color: var(--ink-soft);
  font-size: 1.08rem;
  line-height: 1.65;
}

/* ── topbar ── */

.topbar {
  padding: 1.3rem 0;
  border-bottom: 1px solid var(--line);
}

.topbar .nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink);
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.7));
}

.nav-links {
  display: flex;
  gap: 1.6rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.nav-links a { transition: color 200ms ease; }
.nav-links a:hover { color: var(--steel-bright); }

/* ── hero ── */

.hero {
  padding: 5.5rem 0 6rem;
  text-align: center;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-icon-wrap {
  position: relative;
  width: 300px;
  height: 300px;
  margin-bottom: 2.6rem;
}

.hero-icon-wrap::before {
  content: "";
  position: absolute;
  inset: -50px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(168, 172, 177, 0.14) 0%, transparent 65%);
  pointer-events: none;
}

.hero-icon {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  filter: drop-shadow(0 22px 40px rgba(0, 0, 0, 0.8));
}

.hero .eyebrow { margin-bottom: 1.1rem; }

.hero h1 {
  margin: 0 0 1.6rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.8rem, 6.2vw, 5rem);
  line-height: 1;
  letter-spacing: -0.01em;
  background: var(--metal-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero .lead {
  max-width: 54ch;
  margin: 0 auto;
}

/* ── metallic divider rule ── */

.rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: var(--metal-rule);
  opacity: 0.5;
}

/* ── section head ── */

.section-head {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin-bottom: 3.2rem;
  max-width: 60ch;
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.2rem, 4.8vw, 3.6rem);
  line-height: 1.02;
  color: var(--ink);
  letter-spacing: -0.005em;
}

/* ── apps ── */

.apps { padding: 5.5rem 0; }

.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.4rem;
}

.app-card {
  position: relative;
  padding: 2rem 1.8rem 1.9rem;
  background: linear-gradient(180deg, var(--char) 0%, var(--void) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 200ms ease, border-color 200ms ease;
}

.app-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--metal-rule);
  opacity: 0.45;
}

.app-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

.card-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--steel-bright);
  margin-bottom: 1.1rem;
  background:
    radial-gradient(circle at 30% 28%, rgba(212, 216, 220, 0.14), transparent 60%),
    var(--char);
  box-shadow: inset 0 1px 0 rgba(212, 216, 220, 0.06);
}

.card-name {
  margin: 0 0 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--steel-light);
}

.app-card h3 {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.6rem;
  line-height: 1.15;
  color: var(--ink);
}

.app-card p {
  margin: 0 0 1.5rem;
  color: var(--ink-soft);
  font-size: 0.96rem;
  line-height: 1.6;
}

.card-status {
  display: inline-block;
  padding: 0.34rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.card-status.is-live { color: var(--steel-bright); }

/* ── idea ── */

.idea { padding: 5.5rem 0 6rem; }

.idea-copy {
  display: grid;
  gap: 1.1rem;
  max-width: 62ch;
}

.idea-copy p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ── footer ── */

.footer {
  padding: 2.4rem 0 3.4rem;
  border-top: 1px solid var(--line);
  margin-top: 4rem;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.footer a { color: var(--ink-soft); transition: color 200ms ease; }
.footer a:hover { color: var(--steel-bright); }

/* ── responsive ── */

@media (max-width: 640px) {
  .topbar .nav { flex-direction: column; gap: 0.9rem; align-items: flex-start; }
  .nav-links { flex-wrap: wrap; gap: 1rem; }
  .hero { padding: 3.5rem 0 4.5rem; }
  .hero-icon-wrap { width: 210px; height: 210px; margin-bottom: 2rem; }
  .apps, .idea { padding: 4rem 0; }
  .section-head { margin-bottom: 2.4rem; }
}