/* IA Solutions (Agencies) — terminal-native premium dark
   Tokens per ia-solutions-agencies/brand/brand-dna.md */

:root {
  --ink: #0B0C10;
  --ink-2: #12141A;
  --paper: #F4F1EA;
  --paper-dim: #A8ABB4;
  --signal: #4D7CFF;
  --signal-soft: #5BA3F5;
  --ok: #3ECF8E;
  --line: #23262F;
  --line-soft: rgba(255, 255, 255, 0.08);
  --ink-on-paper: #14161C;
  --dim-on-paper: #5B5E66;
  --font-display: 'Clash Display', 'Segoe UI', sans-serif;
  --font-body: 'General Sans', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', Consolas, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --wrap: 1160px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--signal); color: var(--paper); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 860px; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.02em; }

h2 { font-size: clamp(30px, 4.4vw, 46px); line-height: 1.08; margin-bottom: 20px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--signal-soft);
  margin-bottom: 18px;
}
.eyebrow-dark { color: #3B63D9; }

.lede { font-size: clamp(17px, 2vw, 20px); color: var(--paper-dim); max-width: 640px; }
.paper .lede { color: var(--dim-on-paper); }

/* ── Reveal animations ─────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.d1 { transition-delay: 0.08s; }
.d2 { transition-delay: 0.16s; }
.d3 { transition-delay: 0.24s; }
.d4 { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .wm-cursor { animation: none !important; }
}

/* ── Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-block;
  background: var(--signal);
  color: #fff;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 16px;
  padding: 15px 30px;
  border-radius: 10px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
  box-shadow: 0 0 0 0 rgba(77, 124, 255, 0);
}
.btn:hover { transform: translateY(-2px); background: #5D89FF; box-shadow: 0 8px 32px rgba(77, 124, 255, 0.35); }
.btn:active { transform: translateY(0); }
.btn-small { padding: 10px 20px; font-size: 14px; border-radius: 8px; }
.btn-big { padding: 18px 40px; font-size: 18px; }

.cta-row { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.cta-row.center { justify-content: center; }
.cta-note { font-family: var(--font-mono); font-size: 12.5px; color: var(--paper-dim); }
.cta-note.center { text-align: center; display: block; margin-top: 16px; }

/* ── Nav ───────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 28px;
  background: rgba(11, 12, 16, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}

.wordmark { display: inline-flex; align-items: baseline; gap: 9px; text-decoration: none; }
.wm-ia {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 24px;
  color: var(--paper);
  display: inline-flex;
  align-items: baseline;
}
.wm-cursor {
  display: inline-block;
  width: 12px;
  height: 5px;
  background: var(--signal);
  margin-left: 3px;
  animation: blink 1.15s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.wm-rest {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 13.5px;
  letter-spacing: 0.34em;
  color: var(--paper-dim);
}

/* ── Hero ──────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: clamp(70px, 10vw, 130px) 24px clamp(60px, 8vw, 100px);
  background:
    radial-gradient(1100px 520px at 78% -10%, rgba(77, 124, 255, 0.13), transparent 62%),
    radial-gradient(700px 420px at -8% 42%, rgba(91, 163, 245, 0.06), transparent 60%),
    var(--ink);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(760px 480px at 68% 8%, rgba(0,0,0,0.5), transparent 72%);
  -webkit-mask-image: radial-gradient(760px 480px at 68% 8%, rgba(0,0,0,0.5), transparent 72%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  max-width: var(--wrap);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 56px;
  align-items: center;
}
.hero h1 { font-size: clamp(42px, 6.2vw, 76px); line-height: 1.02; margin-bottom: 24px; }
.hero .sub { font-size: clamp(17px, 2.1vw, 21px); color: var(--paper-dim); max-width: 520px; margin-bottom: 34px; }
.hero-proofline { font-family: var(--font-mono); font-size: 13px; color: var(--signal-soft); margin-top: 26px; letter-spacing: 0.04em; }

/* Terminal */
.hero-terminal { position: relative; }
.term {
  position: relative;
  z-index: 2;
  background: #0E1016;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255, 255, 255, 0.03) inset;
  transform: rotate(0.6deg);
}
.term-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: #111319;
}
.term-dot { width: 11px; height: 11px; border-radius: 50%; background: #2A2E3A; }
.term-dot:first-child { background: #3A3F4E; }
.term-title { margin-left: 10px; font-family: var(--font-mono); font-size: 11.5px; color: #565B69; letter-spacing: 0.04em; }
.term-body {
  padding: 20px 20px 24px;
  font-family: var(--font-mono);
  font-size: 13.2px;
  line-height: 1.85;
  min-height: 318px;
  white-space: pre-wrap;
  word-break: break-word;
}
.t-cmd { color: var(--paper); }
.t-prompt { color: var(--signal); font-weight: 700; }
.t-out { color: #6E7382; }
.t-ok { color: var(--ok); }
.t-caret {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: var(--signal);
  vertical-align: -2px;
  animation: blink 1s steps(1) infinite;
}
.term-glow {
  position: absolute;
  inset: 8% -6% -10% -6%;
  background: radial-gradient(60% 60% at 50% 55%, rgba(77, 124, 255, 0.16), transparent 70%);
  filter: blur(28px);
  z-index: 1;
}

/* ── Proof bar ─────────────────────────────────────────── */
.proofbar {
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  padding: 44px 24px;
  background: var(--ink-2);
}
.proofbar-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--paper-dim);
  text-align: center;
  margin-bottom: 30px;
}
.proofbar-grid {
  max-width: 940px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.proof-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(34px, 4.6vw, 52px);
  color: var(--paper);
  line-height: 1;
}
.proof-cell:nth-child(1) .proof-num, .proof-cell:nth-child(2) .proof-num { color: var(--signal-soft); }
.proof-what { display: block; margin-top: 10px; font-size: 14px; color: var(--paper-dim); }

/* ── Paper (light) sections ───────────────────────────── */
.paper {
  background: var(--paper);
  color: var(--ink-on-paper);
  padding: clamp(70px, 9vw, 110px) 0;
  position: relative;
}
.paper h2 { color: var(--ink-on-paper); }

.stat-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin: 44px 0 36px;
}
.stat-card {
  background: #FFFEFB;
  border: 1px solid #E4DFD3;
  border-radius: 14px;
  padding: 28px 26px;
  box-shadow: 0 2px 10px rgba(20, 22, 28, 0.04);
}
.stat-big {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 44px;
  color: var(--signal);
  margin-bottom: 12px;
  line-height: 1;
}
.stat-card p { font-size: 15px; color: var(--dim-on-paper); }
.problem-kicker {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(20px, 2.6vw, 26px);
  color: var(--ink-on-paper);
  max-width: 620px;
}

/* ── Machine ───────────────────────────────────────────── */
.machine { padding: clamp(70px, 9vw, 110px) 0; }

.pipeline {
  display: grid;
  grid-template-columns: 1fr 34px 1fr 34px 1fr 34px 1fr;
  gap: 10px;
  align-items: stretch;
  margin: 52px 0 56px;
}
.pipe-stage { display: flex; flex-direction: column; gap: 10px; }
.pipe-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--paper-dim);
}
.pipe-node {
  flex: 1;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 16px;
  font-size: 14px;
  color: var(--paper);
  display: flex;
  align-items: center;
}
.pipe-node.small { flex: initial; padding: 9px 12px; font-family: var(--font-mono); font-size: 12.5px; color: var(--signal-soft); }
.pipe-node.accent { border-color: rgba(77, 124, 255, 0.55); background: rgba(77, 124, 255, 0.09); }
.pipe-agents { display: flex; flex-direction: column; gap: 8px; flex: 1; justify-content: center; }
.pipe-arrow {
  align-self: center;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--line), var(--signal));
  position: relative;
  margin-top: 26px;
}
.pipe-arrow::after {
  content: '';
  position: absolute;
  right: -1px;
  top: -3.5px;
  border-left: 7px solid var(--signal);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
}

.plays { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.play {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 26px 24px;
  background: linear-gradient(180deg, rgba(255,255,255,0.025), transparent 55%), var(--ink-2);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.play:hover { border-color: rgba(77, 124, 255, 0.45); transform: translateY(-3px); }
.play-metric {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 23px;
  color: var(--ok);
  margin-bottom: 12px;
}
.play-arrow { color: var(--paper-dim); font-weight: 400; }
.play p { font-size: 14.5px; color: var(--paper-dim); }

/* ── Stack ─────────────────────────────────────────────── */
.stack { padding: 0 0 clamp(70px, 9vw, 110px); }
.stack-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin: 44px 0 34px;
}
.stack-cell {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px 20px;
  background: var(--ink-2);
  transition: border-color 0.3s var(--ease);
}
.stack-cell:hover { border-color: rgba(91, 163, 245, 0.5); }
.stack-name {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--signal-soft);
  margin-bottom: 10px;
  text-transform: uppercase;
}
.stack-cell p { font-size: 13.8px; color: var(--paper-dim); }
.stack-note { font-size: 17px; color: var(--paper); }
.stack-note strong { color: var(--signal-soft); font-weight: 600; }

/* ── Timeline ──────────────────────────────────────────── */
.timeline-sec { padding: 0 0 clamp(70px, 9vw, 110px); }
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 46px;
  position: relative;
}
.tl-step {
  position: relative;
  border-top: 2px solid var(--line);
  padding-top: 22px;
}
.tl-step::before {
  content: '';
  position: absolute;
  top: -5.5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 12px rgba(77, 124, 255, 0.8);
}
.tl-days {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--signal-soft);
}
.tl-step h3 { font-size: 24px; margin: 10px 0 10px; }
.tl-step p { font-size: 14.5px; color: var(--paper-dim); }

/* ── Founder ───────────────────────────────────────────── */
.founder-wrap {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 60px;
  align-items: center;
}
.founder-photo { position: relative; }
.founder-photo img {
  width: 100%;
  height: auto;
  border-radius: 16px;
  display: block;
  filter: saturate(0.92);
  box-shadow: 0 24px 60px rgba(20, 22, 28, 0.18);
}
.founder-tag {
  position: absolute;
  bottom: -13px;
  left: 18px;
  background: var(--ink);
  color: var(--signal-soft);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  padding: 7px 13px;
  border-radius: 7px;
}
.founder-copy h2 { margin-bottom: 24px; }
.founder-copy p { color: var(--dim-on-paper); margin-bottom: 16px; max-width: 560px; }
.founder-sig {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--ink-on-paper) !important;
  margin-top: 6px;
}

/* ── Comparison ────────────────────────────────────────── */
.compare { padding: clamp(70px, 9vw, 110px) 0; }
.compare h2 { max-width: 760px; }
.table-scroll { overflow-x: auto; margin-top: 42px; border: 1px solid var(--line); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; min-width: 780px; background: var(--ink-2); }
th, td { text-align: left; padding: 15px 18px; font-size: 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--paper-dim);
  text-transform: uppercase;
  border-bottom: 1px solid var(--line);
}
tbody tr:last-child td { border-bottom: none; }
tbody td:first-child { color: var(--paper-dim); font-family: var(--font-mono); font-size: 12.5px; }
td, th { color: var(--paper-dim); }
.col-us { color: var(--paper) !important; background: rgba(77, 124, 255, 0.07); }
thead .col-us { color: var(--signal-soft) !important; }

/* ── FAQ ───────────────────────────────────────────────── */
.faq { padding: 0 0 clamp(70px, 9vw, 110px); }
.faq-list { margin-top: 36px; border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary {
  cursor: pointer;
  list-style: none;
  padding: 21px 34px 21px 2px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18.5px;
  position: relative;
  transition: color 0.25s var(--ease);
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: '+';
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--signal);
  transition: transform 0.3s var(--ease);
}
details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
summary:hover { color: var(--signal-soft); }
details p { padding: 0 40px 22px 2px; color: var(--paper-dim); font-size: 15.5px; max-width: 720px; }

/* ── Final CTA ─────────────────────────────────────────── */
.final-cta {
  text-align: center;
  padding: clamp(80px, 10vw, 130px) 0;
  background:
    radial-gradient(700px 400px at 50% 0%, rgba(77, 124, 255, 0.12), transparent 65%),
    var(--ink);
  border-top: 1px solid var(--line-soft);
}
.final-cta .lede { margin: 0 auto 36px; }

/* ── Footer ────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--line-soft); padding: 44px 0 52px; background: var(--ink-2); }
.footer-wrap { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
.footer-line { font-size: 14px; color: var(--paper-dim); }
.footer-fine { font-family: var(--font-mono); font-size: 12px; color: #565B69; }
.footer-fine a { color: var(--paper-dim); }

/* ── /book page ────────────────────────────────────────── */
.book-main {
  min-height: calc(100vh - 70px);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 60px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(50px, 7vw, 90px) 24px;
  align-items: start;
}
.book-copy h1 { font-size: clamp(34px, 4.6vw, 52px); line-height: 1.05; margin-bottom: 26px; }
.book-agenda { margin: 30px 0 34px; display: flex; flex-direction: column; gap: 18px; }
.agenda-item { display: flex; gap: 16px; align-items: flex-start; }
.agenda-num {
  flex: none;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--signal);
  color: var(--signal-soft);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}
.agenda-item p { color: var(--paper-dim); font-size: 15.5px; }
.book-escape { font-size: 14px; color: var(--paper-dim); }
.book-escape a { color: var(--signal-soft); }

.book-host { display: flex; gap: 16px; align-items: center; margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--line); }
.book-host img { width: 62px; height: 62px; border-radius: 50%; object-fit: cover; }
.book-host-name { font-weight: 600; font-size: 15.5px; }
.book-host-role { font-size: 13.5px; color: var(--paper-dim); }

.book-panel {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 34px 32px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}
.book-panel h2 { font-size: 24px; margin-bottom: 8px; }
.book-panel .panel-sub { font-size: 14.5px; color: var(--paper-dim); margin-bottom: 24px; }

.book-form { display: flex; flex-direction: column; gap: 14px; }
.book-form label { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em; color: var(--paper-dim); }
.book-form input[type="email"] {
  width: 100%;
  background: var(--ink);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  padding: 15px 16px;
  outline: none;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.book-form input[type="email"]:focus { border-color: var(--signal); box-shadow: 0 0 0 3px rgba(77, 124, 255, 0.22); }
.book-form input.invalid { border-color: #E5484D; }
.form-error { color: #FF7B81; font-size: 13.5px; display: none; }
.form-error.show { display: block; }

.calendar-box { display: none; margin-top: 6px; }
.calendar-box.show { display: block; }
.calendar-box iframe {
  width: 100%;
  min-height: 640px;
  border: none;
  border-radius: 12px;
  background: #fff;
}
.calendar-fallback { margin-top: 12px; font-size: 13px; color: var(--paper-dim); }
.calendar-fallback a { color: var(--signal-soft); }

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero-terminal { max-width: 560px; }
  .pipeline { grid-template-columns: 1fr; gap: 14px; }
  .pipe-arrow { width: 1px; height: 30px; margin: 0 0 0 24px; background: linear-gradient(180deg, var(--line), var(--signal)); }
  .pipe-arrow::after { right: -3.5px; top: auto; bottom: -1px; border: none; border-top: 7px solid var(--signal); border-left: 4px solid transparent; border-right: 4px solid transparent; }
  .stack-grid { grid-template-columns: repeat(2, 1fr); }
  .plays, .stat-cards { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .founder-wrap { grid-template-columns: 1fr; gap: 44px; }
  .founder-photo { max-width: 300px; }
  .proofbar-grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
  .book-main { grid-template-columns: 1fr; gap: 44px; }
}

@media (max-width: 560px) {
  .timeline { grid-template-columns: 1fr; }
  .stack-grid { grid-template-columns: 1fr; }
  .nav { padding: 13px 18px; }
  .btn-small { padding: 9px 14px; font-size: 13px; }
  .wm-rest { display: none; }
  .term-body { min-height: 260px; font-size: 12px; }
}