/* ═══════════════════════════════════════════════════════════
   repoDNA — Landing Page
═══════════════════════════════════════════════════════════ */

@import url('shared/tokens.css');

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--t1);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--b2); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--b3); }

/* ── LOGO ─────────────────────────────────────────────────── */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-wordmark {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  height: 1em;
  display: flex;
  align-items: flex-end;
  font-family: var(--font);
  color: var(--t1);
}

.logo-badge {
  font-size: 9px;
  background: var(--a-dim);
  color: var(--a);
  padding: 2px 7px;
  border-radius: 99px;
  border: 1px solid var(--a-border);
  font-family: var(--mono);
  letter-spacing: .04em;
  flex-shrink: 0;
}

/* ── NAVIGATION ───────────────────────────────────────────── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 40px;
  height: 60px;
  background: rgba(9,9,11,.88);
  border-bottom: 1px solid var(--b1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.nav-gap { flex: 1; }

.nav-meta { display: flex; align-items: center; gap: 10px; }

.nav-stars {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 99px;
  background: var(--s3);
  border: 1px solid var(--b2);
  font-size: 12px;
  color: var(--t2);
  font-family: var(--mono);
  text-decoration: none;
  transition: border-color .15s, color .15s;
  white-space: nowrap;
}
.nav-stars:hover { border-color: var(--b3); color: var(--t1); }

.nav-star-count { font-weight: 500; color: var(--t1); min-width: 20px; }

.nav-actions { display: flex; align-items: center; gap: 8px; }

/* ── BUTTONS ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--r-sm);
  font-size: 13px;
  font-family: var(--font);
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all .15s;
  text-decoration: none;
  line-height: 1;
  white-space: nowrap;
}

.btn-primary { background: var(--a); color: #09090b; font-weight: 600; }
.btn-primary:hover { filter: brightness(1.07); box-shadow: 0 0 22px var(--a-glow); }

.btn-ghost { background: transparent; border: 1px solid var(--b2); color: var(--t2); }
.btn-ghost:hover { background: var(--s3); border-color: var(--b3); color: var(--t1); }

.btn-lg { padding: 12px 28px; font-size: 14px; border-radius: var(--r); }

/* ── SECTION UTILITIES ────────────────────────────────────── */
.section { padding: 100px 40px; }

.section-inner { max-width: 1100px; margin: 0 auto; }

.section-label {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--a);
  font-family: var(--mono);
  margin-bottom: 16px;
}

.section-heading {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -.04em;
  line-height: 1.15;
  margin-bottom: 18px;
}

.section-sub {
  font-size: 16px;
  color: var(--t2);
  line-height: 1.7;
  max-width: 580px;
}

/* ── FOOTER ───────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--b1);
  padding: 52px 40px;
  background: var(--s1);
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.footer-brand .footer-copy {
  font-size: 12px;
  color: var(--t3);
  margin-top: 10px;
  max-width: 280px;
  line-height: 1.6;
}

.footer-links { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }

.footer-link {
  font-size: 13px;
  color: var(--t3);
  text-decoration: none;
  padding: 5px 10px;
  border-radius: var(--r-sm);
  transition: color .15s, background .15s;
}
.footer-link:hover { color: var(--t1); background: var(--s3); }

.footer-bottom {
  max-width: 1100px;
  margin: 32px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--b1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: var(--t4);
  font-family: var(--mono);
  gap: 16px;
  flex-wrap: wrap;
}

/* ── DNA LOGO ANIMATION ───────────────────────────────────── */
@keyframes dna-blink { 0%,100% { opacity:1; } 50% { opacity:0; } }

.dna-repo { color: var(--a); }
.dna-text { color: var(--a); transition: color .6s ease; }
.dna-text.done { color: var(--t1); }
.dna-cursor {
  display: inline-block;
  width: .55em; height: 2px;
  background: var(--a);
  border-radius: 1px;
  margin-left: 1px;
  align-self: flex-end;
  animation: dna-blink 1s step-end infinite;
}

/* ── SCROLL FADE-IN ───────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .55s ease, transform .55s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── MAC-STYLE TRAFFIC LIGHT DOTS ────────────────────────── */
.install-dot        { width: 9px; height: 9px; border-radius: 50%; background: var(--b3); }
.install-dot.dot-red   { background: #f87171; }
.install-dot.dot-amber { background: #f59e0b; }
.install-dot.dot-green { background: #20e3a0; }

/* ── HERO ─────────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: 110px 40px 100px;
  overflow: hidden;
  text-align: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: -120px; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 600px;
  background: radial-gradient(
    ellipse at center,
    rgba(32,227,160,.07) 0%,
    rgba(14,165,233,.04) 45%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 0 auto;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: 99px;
  background: var(--a-dim);
  border: 1px solid var(--a-border);
  font-size: 11px;
  font-family: var(--mono);
  color: var(--a);
  letter-spacing: .04em;
  margin-bottom: 28px;
}
.hero-eyebrow-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--a);
  box-shadow: 0 0 8px var(--a);
  flex-shrink: 0;
}

.hero-heading {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  letter-spacing: -.05em;
  line-height: 1.08;
  margin-bottom: 24px;
}

.hero-heading-accent {
  background: linear-gradient(135deg, var(--a) 0%, #0ea5e9 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--t2);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto 40px;
}

.hero-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

/* ── INSTALL BLOCK (hero terminal) ───────────────────────── */
.install-block {
  display: inline-flex;
  flex-direction: column;
  background: var(--s2);
  border: 1px solid var(--b2);
  border-radius: var(--r-lg);
  overflow: hidden;
  text-align: left;
  max-width: 520px;
  width: 100%;
  margin: 0 auto;
}

.install-block-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: var(--s3);
  border-bottom: 1px solid var(--b1);
}

.install-block-title {
  font-size: 10px;
  font-family: var(--mono);
  color: var(--t3);
  margin-left: 4px;
  flex: 1;
}

.install-block-body {
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.install-line {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
}

.install-prompt {
  color: var(--a);
  flex-shrink: 0;
  user-select: none;
}

.install-cmd {
  color: var(--t1);
  flex: 1;
  word-break: break-all;
}

.install-copy-btn {
  background: none;
  border: 1px solid var(--b2);
  border-radius: var(--r-sm);
  color: var(--t3);
  font-size: 10px;
  font-family: var(--mono);
  padding: 3px 9px;
  cursor: pointer;
  transition: all .15s;
  white-space: nowrap;
  flex-shrink: 0;
}
.install-copy-btn:hover { border-color: var(--a); color: var(--a); }
.install-copy-btn.copied { color: var(--a); border-color: var(--a-border); }

.install-requirements {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 18px;
  font-size: 12px;
  color: var(--t3);
  flex-wrap: wrap;
}

.install-req-sep {
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--b3);
}

.install-req-item {
  display: flex;
  align-items: center;
  gap: 5px;
}

/* ── HERO ANIMATION ───────────────────────────────────────── */
.hero-animation {
  margin-top: 60px;
  max-width: 1280px;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  background: transparent;
  aspect-ratio: 1280 / 720;
  overflow: hidden;
}
.hero-animation iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
  background: transparent;
  pointer-events: none;
}

/* ── HERO SCREENSHOT ──────────────────────────────────────── */
.hero-screenshot {
  margin-top: 60px;
  max-width: 960px;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  border-radius: var(--r-xl);
  border: 1px solid var(--b2);
  overflow: hidden;
  box-shadow:
    0 0 0 1px var(--b1),
    0 60px 120px rgba(0,0,0,.7),
    0 0 80px rgba(32,227,160,.05);
}

.hero-screenshot-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: var(--s3);
  border-bottom: 1px solid var(--b1);
}

.hero-screenshot img {
  width: 100%;
  height: auto;
  display: block;
  background: var(--s2);
}

.hero-screenshot-placeholder {
  width: 100%;
  height: 480px;
  background: var(--s2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--t4);
  font-size: 13px;
  font-family: var(--mono);
}

/* ── STATS STRIP ──────────────────────────────────────────── */
.stats-strip {
  background: var(--s1);
  border-top: 1px solid var(--b1);
  border-bottom: 1px solid var(--b1);
}

.stats-strip-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: stretch;
}

.stat-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 28px 20px;
  position: relative;
}

.stat-item + .stat-item::before {
  content: '';
  position: absolute;
  left: 0; top: 20%; bottom: 20%;
  width: 1px;
  background: var(--b1);
}

.stat-value {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: -.04em;
  color: var(--a);
  line-height: 1;
}
.stat-value.blue  { color: var(--blue); }
.stat-value.white { color: var(--t1); }

.stat-label {
  font-size: 11px;
  color: var(--t3);
  text-transform: uppercase;
  letter-spacing: .08em;
  font-weight: 500;
}

/* ── HOW IT WORKS — VERTICAL STEPS ───────────────────────── */
.how-section {
  background: var(--s1);
  border-top: 1px solid var(--b1);
  border-bottom: 1px solid var(--b1);
}

.steps-v {
  margin-top: 56px;
  position: relative;
}

.steps-v::before {
  content: '';
  position: absolute;
  display: none;
  left: 21px;
  top: 30px;
  bottom: 30px;
  width: 1px;
  background: linear-gradient(to bottom, var(--a), var(--b2) 75%, transparent);
  opacity: .3;
  pointer-events: none;
}

.step-v-row {
  display: grid;
  grid-template-columns: 44px 1fr 300px;
  gap: 0 36px;
  align-items: start;
  padding: 36px 0;
  border-bottom: 1px solid var(--b1);
}
.step-v-row:last-child { border-bottom: none; }

.step-v-num {
  width: 44px; height: 44px;
  border-radius: var(--r-sm);
  border: 1px solid var(--b2);
  background: var(--s3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--t3);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  transition: border-color .3s, color .3s, background .3s;
}

.fade-in.visible .step-v-num {
  border-color: var(--a-border);
  color: var(--a);
  background: var(--a-dim);
}

.step-v-body {
  padding-top: 10px;
}

.step-v-title {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -.02em;
  margin-bottom: 8px;
}

.step-v-desc {
  font-size: 14px;
  color: var(--t2);
  line-height: 1.68;
  max-width: 520px;
}

.step-v-tag {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--t4);
  border: 1px solid var(--b1);
  background: var(--s3);
  padding: 3px 10px;
  border-radius: var(--r-xs);
}

.step-v-visual { flex-shrink: 0; }

.step-v-frame {
  border-radius: var(--r-lg);
  border: 1px solid var(--b2);
  overflow: hidden;
  background: var(--s2);
  box-shadow: 0 8px 32px rgba(0,0,0,.4);
  display:none;
}

.step-v-bar {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 8px 12px;
  background: var(--s3);
  border-bottom: 1px solid var(--b1);
}

.step-v-frame img {
  width: 100%;
  display: block;
}

.step-v-ph {
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--t4);
}

/* ── FEATURES ─────────────────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 52px;
}

.feature-card {
  background: var(--s2);
  border: 1px solid var(--b1);
  border-radius: var(--r-lg);
  padding: 26px 24px;
  transition: border-color .2s, background .2s;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at top left,
    var(--feature-glow, rgba(32,227,160,.04)),
    transparent 60%
  );
  pointer-events: none;
}

.feature-card:hover { border-color: var(--b2); background: var(--s3); }

.feature-icon {
  width: 40px; height: 40px;
  border-radius: var(--r);
  background: var(--a-dim);
  border: 1px solid var(--a-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--a);
}

.feature-icon.blue { background: rgba(96,165,250,.08); border-color: rgba(96,165,250,.2); color: var(--blue); --feature-glow: rgba(96,165,250,.05); }
.feature-icon.man  { background: rgba(129,140,248,.08); border-color: rgba(129,140,248,.2); color: var(--man);  --feature-glow: rgba(129,140,248,.05); }
.feature-icon.amb  { background: rgba(245,158,11,.08);  border-color: rgba(245,158,11,.2);  color: var(--amb);  --feature-glow: rgba(245,158,11,.04); }

.feature-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--t1);
  margin-bottom: 8px;
  letter-spacing: -.025em;
}

.feature-desc {
  font-size: 13px;
  color: var(--t2);
  line-height: 1.65;
}

/* ── AGENTS CAROUSEL ──────────────────────────────────────── */
.agents-section {
  border-top: 1px solid var(--b1);
  padding-bottom: 16px;
}

.agents-carousel-wrap {
  overflow: hidden;
  padding: 8px 0 0;
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
}

.agents-track {
  display: flex;
  flex-wrap: nowrap;
  gap: 12px;
  width: max-content;
  padding: 12px 6px 20px;
  animation: agents-scroll 38s linear infinite;
}

.agents-track:hover { animation-play-state: paused; }

@keyframes agents-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.agent-pill {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  padding: 16px 16px 14px;
  background: var(--s2);
  border: 1px solid var(--b2);
  border-radius: var(--r-lg);
  min-width: 108px;
  text-align: center;
  flex-shrink: 0;
  transition: border-color .15s, background .15s;
  cursor: default;
  user-select: none;
}
.agent-pill:hover { border-color: var(--b3); background: var(--s3); }

.agent-pill-icon {
  width: 38px; height: 38px;
  background: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  flex-shrink: 0;
}
.agent-pill-icon img {
  width: 30px; height: 30px;
  object-fit: contain;
  display: block;
}

.agent-pill-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--t1);
  white-space: nowrap;
}

.agent-pill-file {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--t4);
  white-space: nowrap;
}

.agents-note {
  font-size: 13px;
  color: var(--t3);
  padding: 8px 0 40px;
}

/* ── GET STARTED / INSTALL ────────────────────────────────── */
.install-section {
  background: var(--s1);
  border-top: 1px solid var(--b1);
}

.install-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  margin-top: 56px;
  align-items: start;
}

.install-steps-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.install-step-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.install-step-n {
  width: 28px; height: 28px;
  border-radius: var(--r-xs);
  background: var(--a-dim);
  border: 1px solid var(--a-border);
  color: var(--a);
  font-family: var(--mono);
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.install-step-info { flex: 1; }

.install-step-heading {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
}

.install-step-sub {
  font-size: 13px;
  color: var(--t3);
  line-height: 1.6;
}

.install-step-sub code {
  font-family: var(--mono);
  color: var(--a);
  font-size: 12px;
}

.install-reqs {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.install-reqs-label {
  font-size: 10px;
  font-family: var(--mono);
  color: var(--t4);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 3px;
}

.install-req-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--s2);
  border: 1px solid var(--b1);
  border-radius: var(--r-sm);
  font-size: 13px;
}

.install-req-check {
  width: 18px; height: 18px;
  border-radius: 4px;
  background: var(--a-dim);
  border: 1px solid var(--a-border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.install-req-name { font-weight: 500; flex: 1; }

.install-req-sub {
  font-size: 11px;
  color: var(--t3);
  font-family: var(--mono);
}

.install-platforms {
  display: flex;
  gap: 8px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.platform-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 99px;
  border: 1px solid var(--b2);
  background: var(--s3);
  font-size: 12px;
  color: var(--t2);
}

/* Mac-style terminal (install section) */
.mac-terminal {
  background: var(--s2);
  border: 1px solid var(--b2);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.mac-terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  background: var(--s3);
  border-bottom: 1px solid var(--b1);
}

.mac-terminal-title {
  font-size: 10px;
  font-family: var(--mono);
  color: var(--t3);
  margin-left: 4px;
}

.install-note {
  margin-top: 10px;
  padding: 13px 16px;
  background: var(--s2);
  border: 1px solid var(--b1);
  border-radius: var(--r);
  font-size: 12.5px;
  color: var(--t3);
  line-height: 1.65;
}

/* Closing banner */
.install-closing {
  margin-top: 56px;
  padding: 32px 36px;
  background: linear-gradient(135deg, rgba(32,227,160,.06) 0%, transparent 65%);
  border: 1px solid var(--a-border);
  border-radius: var(--r-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.closing-headline {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -.025em;
  margin-bottom: 5px;
}

.closing-sub {
  font-size: 13px;
  color: var(--t2);
  line-height: 1.55;
}

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .step-v-row    { grid-template-columns: 44px 1fr 240px; gap: 0 24px; }
}

@media (max-width: 900px) {
  .hero              { padding: 80px 24px 72px; }
  .stats-strip-inner { flex-wrap: wrap; }
  .stat-item         { min-width: 50%; }
  .stat-item::before { display: none; }
  .step-v-row        { grid-template-columns: 44px 1fr; }
  .step-v-visual     { display: none; }
  .install-layout    { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 768px) {
  .features-grid  { grid-template-columns: 1fr; }
  .steps-v::before { display: none; }
}

@media (max-width: 560px) {
  .hero          { padding: 64px 16px 56px; }
  .hero-cta      { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { text-align: center; justify-content: center; }
  .stat-item     { min-width: 100%; }
  .install-block { font-size: 11.5px; }
  .install-closing { flex-direction: column; align-items: flex-start; }
  .hero-screenshot-placeholder { height: 240px; }
}