/* TriRepo landing page (/). Uses the tokens in site.css. */

/* ── Hero frame ──────────────────────────────────────────── */
.hero-frame {
  position: relative;
  max-width: 1200px;
  margin: 16px auto 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 28px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.hero-rings { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-frame::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 260px;
  background: linear-gradient(to bottom, transparent, var(--surface) 70%);
  pointer-events: none;
}

.site-nav--inset {
  position: relative;
  top: 0;
  z-index: 5;
  width: calc(100% - 28px);
  margin: 14px auto 0;
}

/* ── Floating badges around the rings ────────────────────── */
.hero-badges { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.badge-float {
  position: absolute;
  width: 52px;
  height: 52px;
  margin: -26px 0 0 -26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 12px 26px -14px rgba(15, 42, 28, 0.4), 0 2px 4px rgba(15, 42, 28, 0.05);
  color: var(--green-700);
  animation: float 7s ease-in-out infinite;
}
.badge-float svg { width: 22px; height: 22px; }
.badge-float.red { color: var(--red-600); }
.badge-float.amber { color: var(--amber-700); }

.b1  { left: 21%; top: 19%; animation-delay: -0.4s; }
.b2  { left: 11%; top: 35%; animation-delay: -2.1s; }
.b3  { left: 19%; top: 52%; animation-delay: -3.3s; }
.b4  { left: 8%;  top: 66%; animation-delay: -1.2s; }
.b5  { left: 25%; top: 73%; animation-delay: -4.6s; }
.b6  { left: 79%; top: 19%; animation-delay: -2.8s; }
.b7  { left: 89%; top: 35%; animation-delay: -0.9s; }
.b8  { left: 81%; top: 52%; animation-delay: -4.1s; }
.b9  { left: 92%; top: 66%; animation-delay: -1.7s; }
.b10 { left: 75%; top: 73%; animation-delay: -3.7s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-7px); }
}

/* ── Hero content ────────────────────────────────────────── */
.hero {
  position: relative;
  z-index: 2;
  max-width: 760px;
  margin: 0 auto;
  padding: 68px 20px 0;
  text-align: center;
}
.hero-chips { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 13px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
}
.chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green-500);
  box-shadow: 0 0 0 4px var(--green-100);
}
.hero h1 {
  font-size: clamp(40px, 6.6vw, 70px);
  line-height: 1.02;
  letter-spacing: -0.045em;
  font-weight: 700;
  color: var(--text);
}
.hero h1 .accent { color: var(--green-700); }
.hero-sub {
  max-width: 570px;
  margin: 22px auto 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
}
.repo-form {
  display: flex;
  align-items: center;
  gap: 6px;
  width: min(100%, 430px);
  padding: 5px;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 13px;
  box-shadow: var(--shadow-md);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.repo-form:focus-within { border-color: var(--green-600); box-shadow: 0 0 0 4px var(--green-100), var(--shadow-md); }
.repo-form input {
  flex: 1;
  min-width: 0;
  height: 40px;
  padding: 0 10px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-size: 15px;
}
.repo-form input::placeholder { color: var(--faint); }
.btn-demo { height: 52px; padding: 0 20px; border-radius: 13px; }
.hero-note { margin-top: 14px; color: var(--faint); font-size: 13px; }

/* ── Stacked finding cards ───────────────────────────────── */
.finding-stack { position: relative; width: min(100%, 450px); margin: 52px auto 0; }
.finding-stack::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 520px;
  max-width: 120%;
  height: 260px;
  transform: translate(-50%, -40%);
  background: radial-gradient(closest-side, rgba(34, 197, 94, 0.28), rgba(34, 197, 94, 0));
  filter: blur(14px);
  z-index: -1;
}
.finding {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-md);
}
.finding + .finding { margin-top: -4px; }
.f1 { z-index: 3; }
.f2 { z-index: 2; width: 92%; margin-left: 7%; }
.f3 { z-index: 1; width: 84%; margin-left: 12%; }
.finding-icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
}
.finding-icon svg { width: 19px; height: 19px; }
.finding-icon.lies { background: var(--red-50); color: var(--red-600); }
.finding-icon.crash { background: var(--amber-50); color: var(--amber-700); }
.finding-icon.bump { background: var(--green-50); color: var(--green-700); }
.finding-title { color: var(--text); font-size: 14px; font-weight: 500; line-height: 1.4; }
.finding-title b { margin-right: 7px; font-weight: 700; }
.finding-meta { margin-top: 3px; color: var(--faint); font-size: 12.5px; line-height: 1.4; }
.finding code, .proof-label code, .how-card code {
  padding: 1px 5px;
  border-radius: 5px;
  background: var(--surface-2);
  color: var(--code-inline);
  font-size: 12.5px;
}

/* ── Proof strip (what Bob actually found) ───────────────── */
.proof { position: relative; z-index: 2; padding: 64px 20px 44px; text-align: center; }
.proof-label { margin-bottom: 20px; color: var(--faint); font-size: 13px; }
.proof-stats {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px 48px;
  list-style: none;
}
.proof-stats li { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.proof-stats strong { color: var(--text); font-size: 27px; font-weight: 700; letter-spacing: -0.03em; }
.proof-stats span { color: var(--muted); font-size: 13px; }
.proof-link {
  display: inline-block;
  margin-top: 22px;
  color: var(--green-700);
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none;
}
.proof-link:hover { color: var(--link-hover); text-decoration: underline; }

/* ── Sections ────────────────────────────────────────────── */
.section { max-width: 1080px; margin: 0 auto; padding: 104px 20px 0; scroll-margin-top: 20px; }
.section-head { max-width: 640px; margin: 0 auto 40px; text-align: center; }
.eyebrow {
  margin-bottom: 12px;
  color: var(--green-700);
  font: 600 12px var(--font);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.section-head h2 { font-size: clamp(28px, 3.8vw, 42px); line-height: 1.1; letter-spacing: -0.035em; }
.section-head p { margin-top: 14px; color: var(--muted); font-size: 16px; }

.check-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.check-card {
  display: flex;
  flex-direction: column;
  padding: 26px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.check-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--green-200); }
.check-tag {
  align-self: flex-start;
  padding: 4px 9px;
  border-radius: 7px;
  font: 700 11px var(--font);
  letter-spacing: 0.06em;
}
.check-tag.lies { background: var(--red-50); color: var(--red-700); }
.check-tag.crash { background: var(--amber-50); color: var(--amber-700); }
.check-tag.bump { background: var(--green-50); color: var(--green-700); }
.check-card h3 { margin: 18px 0 8px; font-size: 20px; letter-spacing: -0.02em; }
.check-card > p { color: var(--muted); font-size: 14.5px; }
.check-modes { display: grid; gap: 14px; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--border); }
.check-modes div { display: grid; gap: 3px; }
.check-modes dt {
  color: var(--faint);
  font: 600 11px var(--font);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.check-modes dd { color: var(--text); font-size: 14px; }
.check-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 22px;
  color: var(--green-700);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}
.check-link:hover { color: var(--link-hover); }
.check-link span { transition: transform 0.15s; }
.check-link:hover span { transform: translateX(3px); }

.how-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.how-card {
  padding: 30px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
}
.how-kicker {
  color: var(--green-700);
  font: 600 12px var(--font);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.how-card h3 { margin: 12px 0 8px; font-size: 23px; letter-spacing: -0.025em; }
.how-card > p { color: var(--muted); }
.how-card ul { display: grid; gap: 12px; margin-top: 20px; list-style: none; }
.how-card li { display: flex; gap: 10px; font-size: 15px; }
.how-card li svg { flex: none; width: 18px; height: 18px; margin-top: 3px; color: var(--green-600); }
.how-card.deep { background: var(--deep-bg); border-color: var(--deep-border); color: #eaf6ee; }
.how-card.deep .how-kicker { color: var(--green-400); }
.how-card.deep > p { color: #b5d3c1; }
.how-card.deep li svg { color: var(--green-400); }
.how-card.deep code { background: rgba(255, 255, 255, 0.1); color: #d4f5e0; }
.how-link {
  display: inline-block;
  margin-top: 24px;
  color: #86efac;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}
.how-link:hover { text-decoration: underline; }

.cta { max-width: 1080px; margin: 104px auto 0; padding: 0 20px; }
.cta-inner {
  padding: 60px 24px;
  text-align: center;
  background: var(--cta-bg);
  border: 1px solid var(--green-200);
  border-radius: 28px;
}
.cta h2 { font-size: clamp(26px, 3.4vw, 38px); letter-spacing: -0.035em; }
.cta p { max-width: 520px; margin: 12px auto 0; color: var(--muted); }
.cta .hero-actions { margin-top: 28px; }

/* ── Entrance motion ─────────────────────────────────────── */
.reveal { animation: rise 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
@keyframes rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .reveal, .badge-float { animation: none; }
  .check-card, .check-link span { transition: none; }
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1120px) {
  .b3, .b8 { display: none; }
}
@media (max-width: 960px) {
  .b1, .b5, .b6, .b10 { display: none; }
  .check-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
}
@media (max-width: 760px) {
  .hero-frame { margin: 10px 10px 0; border-radius: 22px; }
  .hero-badges { display: none; }
  .hero { padding-top: 48px; }
  .hero-sub { font-size: 16px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .repo-form { width: 100%; }
  .btn-demo { height: 46px; }
  .finding-stack { margin-top: 40px; }
  .f2, .f3 { width: 100%; margin-left: 0; }
  .proof-stats { gap: 18px 28px; }
  .how-grid { grid-template-columns: 1fr; }
  .section { padding-top: 80px; }
  .cta { margin-top: 80px; }
  .nav-github { display: none; }
}

/* Ring colour follows the theme (CSS beats the SVG attribute). */
.hero-rings .rings { stroke: var(--ring); }