/* identisolve.com — dark standout theme (design-brief.md, amended direction 2026-09-29) */

:root {
  --bg: #060c18;
  --bg-2: #0a1424;
  --panel: #0e1b31;
  --panel-2: #122242;
  --line: rgba(111, 178, 255, 0.14);
  --line-2: rgba(111, 178, 255, 0.3);
  --ink: #eaf1fa;
  --muted: #9daec6;
  --dim: #7285a3;
  --blue: #2e8bff;
  --blue-2: #6fb2ff;
  --sky: #a8cfff;
  --glow: rgba(46, 139, 255, 0.35);
  --radius: 14px;
  --font-d: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-b: "Inter", "Segoe UI", system-ui, sans-serif;
  --font-m: "JetBrains Mono", "Cascadia Code", Consolas, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-b);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* layered ambience: node grid + radial glows */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1100px 600px at 85% -10%, rgba(46, 139, 255, 0.12), transparent 60%),
    radial-gradient(900px 700px at -10% 40%, rgba(46, 139, 255, 0.07), transparent 55%),
    linear-gradient(rgba(111, 178, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(111, 178, 255, 0.035) 1px, transparent 1px);
  background-size: auto, auto, 56px 56px, 56px 56px;
}

::selection { background: var(--blue); color: #05101f; }

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

a { color: var(--blue-2); text-decoration: none; }
a:hover { color: var(--sky); }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

.skip {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--blue); color: #05101f; padding: 10px 18px; border-radius: 0 0 10px 0;
  font-weight: 600;
}
.skip:focus { left: 0; }

/* ---------- typography ---------- */

h1, h2, h3 { font-family: var(--font-d); line-height: 1.12; letter-spacing: -0.015em; }

h1 { font-size: clamp(2.7rem, 6.5vw, 4.6rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); font-weight: 700; }
h3 { font-size: 1.22rem; font-weight: 600; }

.eyebrow {
  font-family: var(--font-m);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--blue-2);
  margin-bottom: 18px;
}
.eyebrow .pipe { color: var(--dim); padding: 0 0.35em; }

.lede { font-size: 1.16rem; color: var(--muted); max-width: 46em; }

.section { padding: 96px 0; position: relative; }
.section.alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { margin-bottom: 48px; max-width: 46em; }
.section-head p { color: var(--muted); margin-top: 14px; }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-d); font-weight: 600; font-size: 1rem;
  padding: 14px 26px; border-radius: 10px; border: 1px solid transparent;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
  cursor: pointer;
}
.btn-primary { background: var(--blue); color: #05101f; }
.btn-primary:hover { background: var(--blue-2); color: #05101f; transform: translateY(-2px); box-shadow: 0 10px 34px var(--glow); }
.btn-ghost { border-color: var(--line-2); color: var(--sky); background: transparent; }
.btn-ghost:hover { border-color: var(--blue); color: var(--sky); transform: translateY(-2px); }
.btn-small { padding: 9px 18px; font-size: 0.92rem; }

/* ---------- nav ---------- */

.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(6, 12, 24, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-in { display: flex; align-items: center; justify-content: space-between; height: 74px; }

.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-word {
  font-family: var(--font-d); font-weight: 700; font-size: 1.42rem;
  letter-spacing: -0.01em; color: var(--ink);
}
.brand-word b { color: var(--blue-2); font-weight: 700; }

.menu { display: flex; align-items: center; gap: 30px; }
.menu a:not(.btn) {
  font-weight: 500; font-size: 0.98rem; color: var(--muted);
  padding: 6px 0; border-bottom: 2px solid transparent;
}
.menu a:not(.btn):hover { color: var(--ink); }
.menu a.active { color: var(--ink); border-bottom-color: var(--blue); }

.burger {
  display: none; background: none; border: 1px solid var(--line-2); border-radius: 8px;
  width: 44px; height: 40px; cursor: pointer; position: relative;
}
.burger span, .burger span::before, .burger span::after {
  content: ""; position: absolute; left: 10px; right: 10px; height: 2px;
  background: var(--sky); border-radius: 2px; transition: 0.2s;
}
.burger span { top: 19px; }
.burger span::before { top: -7px; }
.burger span::after { top: 7px; }

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

.hero { position: relative; padding: 110px 0 120px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 40px; align-items: center; }
.hero h1 .accent { color: var(--blue-2); }
.hero .lede { margin: 26px 0 38px; }
.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }

.orbit-wrap { position: relative; display: flex; justify-content: center; }
.orbit-wrap::before {
  content: ""; position: absolute; inset: -12%;
  background: radial-gradient(closest-side, rgba(46, 139, 255, 0.16), transparent 72%);
}
.orbit { width: min(440px, 82vw); height: auto; }
.orbit .spin { transform-origin: 50% 50%; animation: spin 46s linear infinite; }
.orbit .spin-r { transform-origin: 50% 50%; animation: spin-r 70s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes spin-r { to { transform: rotate(-360deg); } }

/* ---------- stat strip ---------- */

.stats { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-2); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 34px 22px; border-left: 1px solid var(--line); }
.stat:first-child { border-left: none; }
.stat .num {
  font-family: var(--font-d); font-weight: 700; font-size: 2.2rem; color: var(--ink);
  line-height: 1;
}
.stat .num em { font-style: normal; color: var(--blue-2); }
.stat .lbl { font-family: var(--font-m); font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--dim); margin-top: 10px; }

/* ---------- cards ---------- */

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; display: flex; flex-direction: column; gap: 12px;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--line-2); box-shadow: 0 16px 44px rgba(3, 8, 18, 0.6), 0 0 0 1px rgba(46, 139, 255, 0.12); }
.card .idx { font-family: var(--font-m); font-size: 0.78rem; color: var(--blue); letter-spacing: 0.12em; }
.card p { color: var(--muted); font-size: 0.98rem; }
.card .more { margin-top: auto; font-weight: 600; font-size: 0.94rem; }

/* ---------- why / feature rows ---------- */

.why-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.why {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px;
  background: linear-gradient(180deg, rgba(18, 34, 66, 0.5), rgba(14, 27, 49, 0.25));
}
.why h3 { margin-bottom: 10px; }
.why h3::before { content: "// "; color: var(--blue); font-family: var(--font-m); font-size: 0.9em; }
.why p { color: var(--muted); font-size: 0.99rem; }

/* ---------- AI band ---------- */

.ai-band {
  border: 1px solid var(--line-2); border-radius: 20px; overflow: hidden; position: relative;
  background:
    radial-gradient(700px 320px at 12% 0%, rgba(46, 139, 255, 0.22), transparent 60%),
    radial-gradient(600px 300px at 95% 110%, rgba(46, 139, 255, 0.16), transparent 60%),
    var(--panel);
  padding: 64px 56px;
}
.ai-band .big-quote {
  font-family: var(--font-d); font-weight: 700; letter-spacing: -0.015em;
  font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.15; max-width: 14em;
}
.ai-band .big-quote .accent { color: var(--blue-2); }
.ai-band p { color: var(--muted); max-width: 44em; margin: 22px 0 30px; }

/* ---------- founder teaser / quote ---------- */

.founder-quote {
  border-left: 3px solid var(--blue); padding: 8px 0 8px 34px; max-width: 52em;
}
.founder-quote blockquote {
  font-family: var(--font-d); font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  font-weight: 500; line-height: 1.4; color: var(--ink);
}
.founder-quote .who { margin-top: 20px; color: var(--dim); font-family: var(--font-m); font-size: 0.85rem; letter-spacing: 0.08em; }
.founder-quote .who b { color: var(--sky); font-weight: 600; }

/* ---------- CTA band ---------- */

.cta-band { text-align: center; padding: 100px 0; }
.cta-band h2 { max-width: 20em; margin: 0 auto 18px; }
.cta-band p { color: var(--muted); margin-bottom: 34px; }

/* ---------- services page ---------- */

.svc { padding: 84px 0; border-top: 1px solid var(--line); }
.svc:first-of-type { border-top: none; }
.svc-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); gap: 56px; }
.svc h2 { margin-bottom: 16px; }
.svc .what { color: var(--muted); }
.svc-lists { display: flex; flex-direction: column; gap: 26px; }
.svc-list h4 {
  font-family: var(--font-m); font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--blue-2); margin-bottom: 12px;
}
.svc-list ul { list-style: none; }
.svc-list li { padding: 8px 0 8px 26px; position: relative; color: var(--muted); font-size: 0.99rem; border-top: 1px solid var(--line); }
.svc-list li:first-child { border-top: none; }
.svc-list li::before { content: "▸"; position: absolute; left: 2px; color: var(--blue); }

.fieldnote {
  margin-top: 34px; border: 1px dashed var(--line-2); border-radius: 12px;
  padding: 20px 24px; background: rgba(14, 27, 49, 0.45);
}
.fieldnote h5 { font-family: var(--font-m); font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--dim); margin-bottom: 8px; }
.fieldnote p { color: var(--muted); font-size: 0.95rem; }

/* ---------- about page ---------- */

.bio-card {
  display: grid; grid-template-columns: minmax(0, 1fr); gap: 26px;
  border: 1px solid var(--line); border-radius: 20px; background: var(--panel);
  padding: 46px 48px; max-width: 60em;
}
.bio-card .role { font-family: var(--font-m); font-size: 0.8rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--blue-2); }
.bio-card h2 { margin: 4px 0 4px; }
.bio-card p { color: var(--muted); }

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.principle { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; text-align: center; background: rgba(14, 27, 49, 0.4); }
.principle .p-title { font-family: var(--font-d); font-weight: 600; font-size: 1.1rem; }
.principle p { color: var(--dim); font-size: 0.92rem; margin-top: 8px; }

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

.contact-hero { padding: 110px 0 70px; }
.email-big {
  display: inline-block; font-family: var(--font-d); font-weight: 700;
  font-size: clamp(1.5rem, 4.4vw, 2.6rem); letter-spacing: -0.01em;
  color: var(--ink); border-bottom: 3px solid var(--blue); padding-bottom: 6px;
  transition: color 0.18s ease, border-color 0.18s ease;
}
.email-big:hover { color: var(--blue-2); border-color: var(--blue-2); }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: var(--panel); }
.step .n { font-family: var(--font-m); color: var(--blue); font-size: 0.85rem; letter-spacing: 0.12em; }
.step h3 { margin: 10px 0 8px; }
.step p { color: var(--muted); font-size: 0.96rem; }

/* ---------- prose (privacy) ---------- */

.prose { max-width: 46em; }
.prose h2 { font-size: 1.3rem; margin: 40px 0 12px; }
.prose p, .prose li { color: var(--muted); }
.prose ul { padding-left: 22px; margin: 10px 0; }

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

footer { background: var(--bg-2); border-top: 1px solid var(--line); padding: 64px 0 40px; margin-top: 40px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; align-items: start; }
.foot-tag { font-family: var(--font-m); font-size: 0.8rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--dim); margin-top: 14px; }
.foot-tag .pipe { color: var(--blue); padding: 0 0.3em; }
.foot-col h4 { font-family: var(--font-m); font-size: 0.74rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--dim); margin-bottom: 16px; }
.foot-col a, .foot-col span { display: block; color: var(--muted); padding: 5px 0; font-size: 0.97rem; }
.foot-col a:hover { color: var(--ink); }
.foot-legal {
  margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  color: var(--dim); font-size: 0.9rem;
}

/* ---------- reveal ---------- */

.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .orbit .spin, .orbit .spin-r { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- responsive ---------- */

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .orbit-wrap { order: -1; margin-bottom: 10px; }
  .orbit { width: min(300px, 62vw); }
  .cards { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat { border-left: none; border-top: 1px solid var(--line); }
  .stat:nth-child(-n+2) { border-top: none; }
  .stat:nth-child(even) { border-left: 1px solid var(--line); }
  .svc-grid { grid-template-columns: 1fr; gap: 30px; }
  .foot-grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 760px) {
  .section { padding: 68px 0; }
  .hero { padding: 70px 0 80px; }
  .cards, .why-grid, .principles, .steps { grid-template-columns: 1fr; }
  .ai-band { padding: 44px 28px; }
  .bio-card { padding: 32px 26px; }

  .burger { display: block; }
  .menu {
    display: none; position: absolute; top: 74px; left: 0; right: 0;
    background: rgba(6, 12, 24, 0.97); border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: flex-start; padding: 22px 24px; gap: 16px;
  }
  .menu.open { display: flex; }
}

@media (max-width: 460px) {
  .stats-grid { grid-template-columns: 1fr; }
  .stat, .stat:nth-child(even) { border-left: none; border-top: 1px solid var(--line); }
  .stat:first-child { border-top: none; }
}