/* ============================================================
   CPRT — Core Precision Regenerative Therapy
   Design system: "laboratory luxury"
   Charcoal base · hairline lime accents · scientific blue notes
   ============================================================ */

:root {
  --bg: #0b0e0d;
  --bg-2: #10514;
  --bg-raise: #121716;
  --bg-deep: #070909;
  --ink: #e9efec;
  --ink-soft: #b7c2bd;
  --ink-mute: #8a968f;
  --lime: #c6f24e;
  --lime-dim: rgba(198, 242, 78, 0.35);
  --lime-faint: rgba(198, 242, 78, 0.12);
  --sci-blue: #8ad8f5;
  --sci-blue-dim: rgba(138, 216, 245, 0.35);
  --glass: rgba(255, 255, 255, 0.04);
  --glass-strong: rgba(255, 255, 255, 0.07);
  --line: rgba(255, 255, 255, 0.09);
  --line-soft: rgba(255, 255, 255, 0.06);
  --shadow: 0 24px 60px -24px rgba(0, 0, 0, 0.65);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Archivo", "Helvetica Neue", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --radius: 18px;
  --radius-sm: 12px;
  --pad: clamp(1.25rem, 4vw, 2.5rem);
  --section-gap: clamp(4.5rem, 10vw, 8.5rem);
  --w-max: 1180px;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--lime); color: #0b0e0d; }

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

a { color: inherit; }

/* Skip link for keyboard users */
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--lime); color: #0b0e0d; padding: 0.6rem 1rem;
  font-family: var(--font-mono); font-size: 0.8rem; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 2px solid var(--lime); outline-offset: 3px; border-radius: 4px; }

/* ---------- Typography ---------- */

h1, h2, h3, .display {
  font-family: var(--font-display);
  font-weight: 480;
  letter-spacing: -0.015em;
  line-height: 1.08;
  text-wrap: balance;
}

h1 { font-size: clamp(2.6rem, 6.4vw, 4.6rem); }
h2 { font-size: clamp(2rem, 4.4vw, 3.1rem); }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.55rem); font-weight: 520; }

.lede {
  font-size: clamp(1.1rem, 1.8vw, 1.3rem);
  color: var(--ink-soft);
  max-width: 42ch;
  text-wrap: pretty;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--lime);
  margin-bottom: 1.4rem;
}
.eyebrow::before {
  content: ""; width: 2.2rem; height: 1px;
  background: var(--lime-dim); flex: none;
}
.eyebrow--blue { color: var(--sci-blue); }
.eyebrow--blue::before { background: var(--sci-blue-dim); }

.muted { color: var(--ink-mute); }
.soft { color: var(--ink-soft); }
em.sci { font-style: normal; color: var(--sci-blue); }

/* ---------- Layout primitives ---------- */

.wrap { width: min(var(--w-max), calc(100% - 2 * var(--pad))); margin-inline: auto; }
.section { padding-block: var(--section-gap); position: relative; }
.section--tight { padding-block: calc(var(--section-gap) * 0.55); }

.section-head { max-width: 60ch; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head p { margin-top: 1.1rem; color: var(--ink-soft); }

.grid { display: grid; gap: 1.1rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(min(230px, 100%), 1fr)); }

.hairline { border: none; height: 1px; background: linear-gradient(90deg, transparent, var(--line), transparent); }

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

.card {
  position: relative;
  background: var(--glass);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: clamp(1.4rem, 3vw, 2rem);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: border-color 0.35s ease, transform 0.35s ease, background 0.35s ease;
}
.card:hover { border-color: var(--lime-dim); background: var(--glass-strong); }
a.card { text-decoration: none; }
a.card:hover { transform: translateY(-4px); }

.card--edge::before {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--lime), transparent 80%);
  opacity: 0.7;
}

.card h3 { margin-bottom: 0.6rem; }
.card p { color: var(--ink-soft); font-size: 0.97rem; }

.card .card-link {
  margin-top: 1.1rem; display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.08em;
  color: var(--lime); text-transform: uppercase;
}
.card .card-link svg { transition: transform 0.3s ease; }
.card:hover .card-link svg { transform: translateX(5px); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.6rem;
  padding: 0.85rem 1.7rem;
  border-radius: 999px;
  font-family: var(--font-body); font-weight: 600; font-size: 0.95rem;
  letter-spacing: 0.01em;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  border: 1px solid transparent;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}
.btn:active { transform: scale(0.97); }

.btn--lime {
  background: var(--lime); color: #0c1002;
  box-shadow: 0 8px 28px -10px rgba(198, 242, 78, 0.45);
}
.btn--lime:hover { transform: translateY(-2px); box-shadow: 0 14px 34px -10px rgba(198, 242, 78, 0.55); }

.btn--ghost {
  background: transparent; color: var(--ink);
  border-color: var(--line);
}
.btn--ghost:hover { border-color: var(--lime-dim); color: var(--lime); }

.btn--blue {
  background: transparent; color: var(--sci-blue);
  border-color: var(--sci-blue-dim);
}
.btn--blue:hover { background: rgba(138, 216, 245, 0.08); }

.cta-row { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2rem; }

/* ---------- Header ---------- */

.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background 0.35s ease, border-color 0.35s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(11, 14, 13, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--line-soft);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: 0.9rem; gap: 1.5rem;
}

.logo {
  display: flex; align-items: center; gap: 0.7rem;
  text-decoration: none; flex: none;
}
.logo-mark { width: 34px; height: 34px; flex: none; }
.logo-text { line-height: 1.05; }
.logo-text b {
  font-family: var(--font-display); font-weight: 560; font-size: 1.15rem;
  letter-spacing: 0.01em; display: block;
}
.logo-text span {
  font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.24em;
  text-transform: uppercase; color: var(--ink-mute);
}

.nav { display: flex; align-items: center; gap: 1.5rem; }
.nav a:not(.btn) {
  text-decoration: none; font-size: 0.92rem; color: var(--ink-soft);
  transition: color 0.25s ease; white-space: nowrap;
}
.nav a:not(.btn):hover, .nav a[aria-current="page"] { color: var(--lime); }

.nav-drop { position: relative; }
.nav-drop > button {
  background: none; border: none; color: var(--ink-soft); font: inherit;
  font-size: 0.92rem; cursor: pointer; display: inline-flex; align-items: center; gap: 0.35rem;
  transition: color 0.25s ease; padding: 0;
}
.nav-drop > button:hover, .nav-drop.open > button { color: var(--lime); }
.nav-drop-menu {
  position: absolute; top: calc(100% + 1rem); left: 50%; transform: translateX(-50%) translateY(8px);
  min-width: 240px; padding: 0.6rem;
  background: rgba(16, 20, 19, 0.96); border: 1px solid var(--line);
  border-radius: var(--radius-sm); box-shadow: var(--shadow);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  opacity: 0; visibility: hidden; transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
}
.nav-drop.open .nav-drop-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.nav-drop-menu a {
  display: block; padding: 0.55rem 0.9rem; border-radius: 8px;
  font-size: 0.9rem !important;
}
.nav-drop-menu a:hover { background: var(--lime-faint); }

.nav-toggle {
  display: none; background: none; border: 1px solid var(--line);
  border-radius: 10px; width: 44px; height: 40px; cursor: pointer;
  color: var(--ink); align-items: center; justify-content: center;
  flex: none;
}

/* Long brand tagline crowds the menu button on narrow screens */
@media (max-width: 620px) {
  .site-header .logo-text span { display: none; }
  .site-header .logo-text b { font-size: 1.25rem; }
}

@media (max-width: 1080px) {
  /* Full-screen sheet: 17 links won't fit a centered column, so it scrolls */
  .nav {
    position: fixed; inset: 0; flex-direction: column; justify-content: flex-start;
    background: rgba(9, 11, 10, 0.97); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
    gap: 1rem; font-size: 1.2rem;
    padding: 5.5rem 1.5rem 3rem; overflow-y: auto; overscroll-behavior: contain;
    opacity: 0; visibility: hidden; transition: opacity 0.3s ease, visibility 0.3s;
  }
  body.nav-open .nav { opacity: 1; visibility: visible; }
  body.nav-open { overflow: hidden; }
  .nav a:not(.btn) { font-size: 1.1rem; }
  .nav > .btn { margin-top: 0.6rem; }
  .nav-drop { display: contents; }
  .nav-drop > button { display: none; }
  .nav-drop-menu {
    position: static; transform: none; opacity: 1; visibility: visible;
    background: none; border: none; box-shadow: none; padding: 0;
    display: flex; flex-direction: column; align-items: center; gap: 1rem;
  }
  .nav-drop-menu a { font-size: 1.1rem !important; padding: 0; }
  .nav-drop-menu a:hover { background: none; }
  .nav-toggle { display: inline-flex; z-index: 110; position: relative; }
}

/* ---------- Hero ---------- */

.hero {
  position: relative; min-height: 92svh;
  display: flex; align-items: center;
  padding-block: clamp(8rem, 16vh, 11rem) clamp(4rem, 8vh, 6rem);
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: -2;
  background:
    radial-gradient(58% 55% at 78% 30%, rgba(138, 216, 245, 0.10), transparent 65%),
    radial-gradient(45% 48% at 15% 82%, rgba(198, 242, 78, 0.07), transparent 65%),
    var(--bg);
}
.hero-cells {
  position: absolute; inset: 0; z-index: -1; opacity: 0.85;
  pointer-events: none;
}
.hero-inner { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 3rem; align-items: center; }
@media (max-width: 900px) { .hero-inner { grid-template-columns: 1fr; } .hero-art { display: none; } }

.hero .lede { margin-top: 1.6rem; }

.hero-note {
  margin-top: 2.6rem; display: flex; gap: 0.8rem; align-items: flex-start;
  font-family: var(--font-mono); font-size: 0.78rem; line-height: 1.7;
  color: var(--ink-mute); max-width: 46ch;
}
.hero-note::before { content: "//"; color: var(--sci-blue); flex: none; }

/* DNA helix */
.dna { width: min(320px, 70%); margin-inline: auto; animation: dnaFloat 9s ease-in-out infinite; }
@keyframes dnaFloat { 0%, 100% { transform: translateY(0) rotate(-4deg); } 50% { transform: translateY(-18px) rotate(3deg); } }
.dna .rung { animation: rungPulse 3.6s ease-in-out infinite; transform-origin: center; }
@keyframes rungPulse { 0%, 100% { opacity: 0.35; } 50% { opacity: 1; } }

/* ---------- Page hero (interior pages) ---------- */

.page-hero {
  padding-block: clamp(9rem, 18vh, 12rem) clamp(3rem, 6vh, 4.5rem);
  position: relative; overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(50% 60% at 85% 20%, rgba(138, 216, 245, 0.08), transparent 60%),
    radial-gradient(40% 50% at 8% 90%, rgba(198, 242, 78, 0.05), transparent 60%);
}
.page-hero .lede { margin-top: 1.4rem; }

.crumbs {
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-mute); margin-bottom: 1.6rem;
  display: flex; gap: 0.6rem; flex-wrap: wrap;
}
.crumbs a { color: var(--ink-mute); text-decoration: none; }
.crumbs a:hover { color: var(--lime); }
.crumbs span::before { content: "/"; margin-right: 0.6rem; color: var(--line); }

/* ---------- Journey steps ---------- */

.journey { counter-reset: step; display: grid; gap: 0; position: relative; }
.journey-step {
  counter-increment: step;
  display: grid; grid-template-columns: 4.2rem 1fr; gap: 1.4rem;
  padding: 1.7rem 0; border-bottom: 1px solid var(--line-soft);
  position: relative;
}
.journey-step:last-child { border-bottom: none; }
.journey-num {
  font-family: var(--font-display); font-size: 2rem; color: var(--lime);
  line-height: 1;
}
.journey-num::before { content: "0" counter(step); }
.journey-step:nth-child(n+10) .journey-num::before { content: counter(step); }
.journey-step h3 { font-size: 1.2rem; margin-bottom: 0.35rem; }
.journey-step p { color: var(--ink-soft); font-size: 0.97rem; max-width: 58ch; }

/* ---------- Programs ---------- */

.program-card { display: flex; flex-direction: column; gap: 0.4rem; }
.program-days {
  font-family: var(--font-display); font-size: 2.6rem; line-height: 1;
  color: var(--lime);
}
.program-days small { font-size: 0.9rem; font-family: var(--font-mono); color: var(--ink-mute); letter-spacing: 0.14em; text-transform: uppercase; display: block; margin-top: 0.4rem; }
.program-card ul { list-style: none; margin-top: 1rem; flex: 1; }
.program-card li {
  padding: 0.45rem 0; font-size: 0.93rem; color: var(--ink-soft);
  border-bottom: 1px dashed var(--line-soft);
  display: flex; gap: 0.6rem; align-items: baseline;
}
.program-card li::before { content: "+"; color: var(--sci-blue); font-family: var(--font-mono); flex: none; }
.program-card .btn { margin-top: 1.4rem; }
.program-price {
  margin-top: 1rem; font-family: var(--font-mono); font-size: 0.78rem;
  letter-spacing: 0.1em; color: var(--ink-mute); text-transform: uppercase;
}
.program-card--featured { border-color: var(--lime-dim); }
.program-card--featured::after {
  content: "Most requested"; position: absolute; top: -0.75rem; right: 1.2rem;
  background: var(--lime); color: #0c1002; font-family: var(--font-mono);
  font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0.28rem 0.7rem; border-radius: 999px;
}

/* ---------- Testimonials ---------- */

.quote-card { display: flex; flex-direction: column; gap: 1.2rem; }
.quote-card blockquote { font-size: 1rem; color: var(--ink-soft); font-style: italic; }
.quote-card blockquote::before { content: "“"; font-family: var(--font-display); font-size: 2.6rem; color: var(--lime); display: block; line-height: 0.6; margin-bottom: 0.8rem; }
.quote-who { display: flex; align-items: center; gap: 0.9rem; margin-top: auto; }
.quote-avatar {
  width: 46px; height: 46px; border-radius: 50%; flex: none;
  display: grid; place-items: center;
  font-family: var(--font-display); font-size: 1.1rem; color: var(--bg);
}
.quote-who b { display: block; font-size: 0.95rem; }
.quote-who span { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--sci-blue); }

/* ---------- FAQ accordion ---------- */

.faq-list { display: grid; gap: 0.8rem; }
.faq-item {
  border: 1px solid var(--line-soft); border-radius: var(--radius-sm);
  background: var(--glass); overflow: hidden;
  transition: border-color 0.3s ease;
}
.faq-item[open] { border-color: var(--lime-dim); }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 1.15rem 1.4rem;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  font-weight: 600; font-size: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; font-family: var(--font-mono); color: var(--lime);
  font-size: 1.3rem; transition: transform 0.3s ease; flex: none;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-body { padding: 0 1.4rem 1.3rem; color: var(--ink-soft); font-size: 0.97rem; }

/* ---------- Forms ---------- */

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }

.field label {
  display: block; font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-mute);
  margin-bottom: 0.5rem;
}
.field input, .field select, .field textarea {
  width: 100%; padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.03); border: 1px solid var(--line);
  border-radius: 10px; color: var(--ink); font: inherit; font-size: 0.96rem;
  transition: border-color 0.25s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--lime-dim);
}
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238a968f' fill='none' stroke-width='1.5'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1rem center; }
.field textarea { min-height: 120px; resize: vertical; }

.check { display: flex; gap: 0.8rem; align-items: flex-start; font-size: 0.9rem; color: var(--ink-soft); }
.check input { width: 1.1rem; height: 1.1rem; margin-top: 0.2rem; accent-color: var(--lime); flex: none; }

.file-drop {
  border: 1px dashed var(--line); border-radius: 10px; padding: 1.4rem;
  text-align: center; color: var(--ink-mute); font-size: 0.9rem;
  transition: border-color 0.25s ease; cursor: pointer;
}
.file-drop:hover { border-color: var(--sci-blue-dim); color: var(--sci-blue); }

.form-note {
  font-size: 0.82rem; color: var(--ink-mute); line-height: 1.6;
  border-left: 2px solid var(--sci-blue-dim); padding-left: 1rem; margin-top: 1.4rem;
}

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

.cta-band {
  position: relative; border-radius: calc(var(--radius) + 8px);
  padding: clamp(2.5rem, 6vw, 4.5rem);
  background:
    radial-gradient(70% 120% at 85% 10%, rgba(138, 216, 245, 0.12), transparent 60%),
    radial-gradient(60% 120% at 10% 100%, rgba(198, 242, 78, 0.12), transparent 60%),
    var(--bg-raise);
  border: 1px solid var(--line);
  overflow: hidden; text-align: center;
}
.cta-band h2 { max-width: 22ch; margin-inline: auto; }
.cta-band p { max-width: 52ch; margin: 1.2rem auto 0; color: var(--ink-soft); }
.cta-band .cta-row { justify-content: center; }

/* ---------- Footer ---------- */

.site-footer {
  margin-top: var(--section-gap);
  border-top: 1px solid var(--line-soft);
  background: var(--bg-deep);
  padding-block: 3.5rem 2rem;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 2.5rem;
  margin-bottom: 3rem;
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-grid h4 {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--ink-mute); margin-bottom: 1.1rem; font-weight: 500;
}
.footer-grid ul { list-style: none; display: grid; gap: 0.55rem; }
.footer-grid a { text-decoration: none; color: var(--ink-soft); font-size: 0.92rem; transition: color 0.25s ease; }
.footer-grid a:hover { color: var(--lime); }
.footer-blurb { color: var(--ink-mute); font-size: 0.92rem; max-width: 34ch; margin-top: 1rem; }

.footer-legal {
  border-top: 1px solid var(--line-soft); padding-top: 1.6rem;
  font-size: 0.78rem; color: var(--ink-mute); line-height: 1.7;
  display: grid; gap: 0.8rem;
}
.footer-legal .demo-tag { color: var(--sci-blue); font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; }

/* ---------- Chatbot ---------- */

.chat-fab {
  position: fixed; right: 1.4rem; bottom: 1.4rem; z-index: 90;
  width: 58px; height: 58px; border-radius: 50%;
  background: var(--lime); color: #0c1002; border: none; cursor: pointer;
  display: grid; place-items: center;
  box-shadow: 0 12px 32px -8px rgba(198, 242, 78, 0.5);
  transition: transform 0.25s ease;
}
.chat-fab:hover { transform: scale(1.07); }

.chat-panel {
  position: fixed; right: 1.4rem; bottom: 5.6rem; z-index: 95;
  width: min(370px, calc(100vw - 2.8rem)); height: min(520px, 70vh);
  background: rgba(14, 18, 17, 0.97); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px);
  display: flex; flex-direction: column; overflow: hidden;
  opacity: 0; visibility: hidden; transform: translateY(14px) scale(0.98);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
}
.chat-panel.open { opacity: 1; visibility: visible; transform: none; }

.chat-head {
  padding: 1rem 1.2rem; border-bottom: 1px solid var(--line-soft);
  display: flex; align-items: center; gap: 0.8rem;
}
.chat-head b { font-size: 0.95rem; display: block; }
.chat-head span { font-family: var(--font-mono); font-size: 0.68rem; color: var(--lime); letter-spacing: 0.1em; text-transform: uppercase; }
.chat-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--lime); flex: none; animation: chatPulse 2.4s ease-in-out infinite; }
@keyframes chatPulse { 50% { opacity: 0.35; } }

.chat-log { flex: 1; overflow-y: auto; padding: 1.1rem; display: flex; flex-direction: column; gap: 0.7rem; }
.chat-msg {
  max-width: 86%; padding: 0.65rem 0.95rem; border-radius: 14px;
  font-size: 0.9rem; line-height: 1.5; white-space: pre-line;
}
.chat-msg--bot { background: rgba(255, 255, 255, 0.06); border-bottom-left-radius: 4px; align-self: flex-start; }
.chat-msg--user { background: var(--lime-faint); border: 1px solid var(--lime-dim); border-bottom-right-radius: 4px; align-self: flex-end; }
.chat-msg a { color: var(--lime); }

.chat-quick { padding: 0 1.1rem 0.6rem; display: flex; flex-wrap: wrap; gap: 0.45rem; }
.chat-quick button {
  background: none; border: 1px solid var(--line); color: var(--ink-soft);
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.05em;
  padding: 0.35rem 0.75rem; border-radius: 999px; cursor: pointer;
  transition: border-color 0.25s ease, color 0.25s ease;
}
.chat-quick button:hover { border-color: var(--lime-dim); color: var(--lime); }

.chat-input { display: flex; border-top: 1px solid var(--line-soft); }
.chat-input input {
  flex: 1; background: none; border: none; padding: 0.95rem 1.1rem;
  color: var(--ink); font: inherit; font-size: 0.9rem;
}
.chat-input input:focus { outline: none; }
.chat-input button {
  background: none; border: none; color: var(--lime); cursor: pointer;
  padding: 0 1.1rem; display: grid; place-items: center;
}

/* ---------- Modal (reserve / demo checkout) ---------- */

.modal-backdrop {
  position: fixed; inset: 0; z-index: 120;
  background: rgba(5, 7, 6, 0.75); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  display: grid; place-items: center; padding: 1.2rem;
  opacity: 0; visibility: hidden; transition: opacity 0.3s ease, visibility 0.3s;
}
.modal-backdrop.open { opacity: 1; visibility: visible; }
.modal {
  width: min(480px, 100%); max-height: 88vh; overflow-y: auto;
  background: var(--bg-raise); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 2rem;
  transform: translateY(16px); transition: transform 0.3s ease;
}
.modal-backdrop.open .modal { transform: none; }
.modal h3 { margin-bottom: 0.4rem; }
.modal .muted { font-size: 0.9rem; }
.modal-close {
  position: absolute; top: 1rem; right: 1rem; background: none; border: none;
  color: var(--ink-mute); font-size: 1.5rem; cursor: pointer; line-height: 1;
}
.policy-list { list-style: none; margin: 1.2rem 0; display: grid; gap: 0.55rem; }
.policy-list li { display: flex; gap: 0.7rem; font-size: 0.88rem; color: var(--ink-soft); align-items: baseline; }
.policy-list li::before { content: "✓"; color: var(--lime); font-family: var(--font-mono); flex: none; }

/* ---------- Reveal animations ---------- */

.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s cubic-bezier(0.2, 0.6, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.6, 0.2, 1); }
.reveal.in { opacity: 1; transform: none; }
.reveal-stagger > * { opacity: 0; transform: translateY(26px); transition: opacity 0.7s cubic-bezier(0.2, 0.6, 0.2, 1), transform 0.7s cubic-bezier(0.2, 0.6, 0.2, 1); }
.reveal-stagger.in > * { opacity: 1; transform: none; }
.reveal-stagger.in > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.in > *:nth-child(2) { transition-delay: 0.13s; }
.reveal-stagger.in > *:nth-child(3) { transition-delay: 0.21s; }
.reveal-stagger.in > *:nth-child(4) { transition-delay: 0.29s; }
.reveal-stagger.in > *:nth-child(5) { transition-delay: 0.37s; }
.reveal-stagger.in > *:nth-child(6) { transition-delay: 0.45s; }
.reveal-stagger.in > *:nth-child(7) { transition-delay: 0.53s; }
.reveal-stagger.in > *:nth-child(8) { transition-delay: 0.61s; }
.reveal-stagger.in > *:nth-child(9) { transition-delay: 0.69s; }
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-stagger > * { opacity: 1 !important; transform: none !important; }
}

/* ---------- Icon chips ---------- */

.icon-chip {
  width: 52px; height: 52px; border-radius: 14px; flex: none;
  display: grid; place-items: center; margin-bottom: 1.1rem;
  background: linear-gradient(140deg, rgba(198, 242, 78, 0.12), rgba(138, 216, 245, 0.08));
  border: 1px solid var(--line);
  color: var(--lime);
}
.icon-chip--blue { color: var(--sci-blue); }

/* ---------- Misc ---------- */

.stat-row { display: flex; flex-wrap: wrap; gap: 2.5rem; margin-top: 3rem; }
.stat b { font-family: var(--font-display); font-size: 2.2rem; font-weight: 480; color: var(--lime); display: block; line-height: 1; }
.stat span { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-mute); display: block; margin-top: 0.5rem; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
@media (max-width: 880px) { .two-col { grid-template-columns: 1fr; } }

.prose { max-width: 68ch; }
.prose p + p { margin-top: 1.1rem; }
.prose h2 { margin-bottom: 1.1rem; }
.prose h3 { margin-top: 2.4rem; margin-bottom: 0.8rem; }
.prose ul { margin: 1.1rem 0 1.1rem 1.2rem; color: var(--ink-soft); display: grid; gap: 0.45rem; }
.prose .soft, .prose p { color: var(--ink-soft); }
.prose strong { color: var(--ink); }

.callout {
  border: 1px solid var(--sci-blue-dim); border-radius: var(--radius-sm);
  background: rgba(138, 216, 245, 0.05); padding: 1.3rem 1.5rem;
  font-size: 0.92rem; color: var(--ink-soft); margin: 1.8rem 0;
}
.callout b { color: var(--sci-blue); }

.map-frame {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  filter: grayscale(1) invert(0.92) hue-rotate(180deg) contrast(0.9);
}
.map-frame iframe { width: 100%; height: 380px; border: 0; display: block; }

.toast {
  position: fixed; left: 50%; bottom: 2rem; transform: translateX(-50%) translateY(20px);
  background: var(--bg-raise); border: 1px solid var(--lime-dim); color: var(--ink);
  padding: 0.9rem 1.4rem; border-radius: 12px; font-size: 0.92rem; z-index: 150;
  box-shadow: var(--shadow); opacity: 0; visibility: hidden;
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
}
.toast.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }