/* Travel Companion — editorial / warm-paper. Playfair voice, DM Sans body, DM Mono labels. */

:root {
  --paper: #f7f4ee;
  --paper-2: #f1ece3;
  --card: #fffdf9;
  --ink: #17150f;
  --ink-2: #4a463c;
  --ink-3: #85806f;
  --rule: #ddd6c7;
  --rule-2: #e9e3d6;
  --accent: #b4441f;
  --accent-soft: #f0d9cd;
  --stale: #a33a26;
  --stale-bg: #f6e6e0;
  --fresh: #2f6440;
  --fresh-bg: #e2ecdf;
  --shadow: 0 1px 2px rgba(23, 21, 15, .04), 0 12px 32px -12px rgba(23, 21, 15, .14);
  --shadow-lg: 0 2px 4px rgba(23, 21, 15, .05), 0 40px 80px -32px rgba(23, 21, 15, .26);
  --sans: "DM Sans", ui-sans-serif, system-ui, sans-serif;
  --mono: "DM Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --display: "Playfair Display", ui-serif, Georgia, serif;
  --shell: 1140px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #14130f;
    --paper-2: #1a1814;
    --card: #1e1c17;
    --ink: #f4f1e9;
    --ink-2: #bdb7a8;
    --ink-3: #8b8578;
    --rule: #33302a;
    --rule-2: #2a2721;
    --accent: #e0703f;
    --accent-soft: #3a2419;
    --stale: #e08163;
    --stale-bg: #33201a;
    --fresh: #7fb894;
    --fresh-bg: #1c2b21;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 12px 32px -12px rgba(0, 0, 0, .6);
    --shadow-lg: 0 2px 4px rgba(0, 0, 0, .35), 0 40px 80px -32px rgba(0, 0, 0, .8);
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* paper grain */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: .028;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
}

.shell { width: min(100% - 48px, var(--shell)); margin-inline: auto; }

a { color: inherit; }

h1, h2, h3 { font-weight: 600; letter-spacing: -.022em; line-height: 1.06; margin: 0; }

em {
  font-family: var(--display);
  font-style: italic;
  font-weight: 600;
  letter-spacing: -.01em;
}

p { margin: 0; }

/* ── labels ──────────────────────────────────────────────── */

.section-label, .eyebrow, .card-kicker, .status, .live, .step-number, .answer-top span {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.section-label { color: var(--ink-3); margin: 0 0 20px; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink-2);
  padding: 7px 15px 7px 12px;
  border: 1px solid var(--rule);
  border-radius: 100px;
  background: color-mix(in srgb, var(--card) 70%, transparent);
  backdrop-filter: blur(8px);
}

.eyebrow span {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

/* ── nav ─────────────────────────────────────────────────── */

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 26px 0;
  position: relative;
  z-index: 10;
}

.brand {
  font-weight: 600;
  letter-spacing: -.02em;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 16px;
}

.brand-mark { color: var(--accent); font-size: 13px; }

.nav-links { margin-left: auto; display: flex; gap: 28px; }

.nav-links a {
  text-decoration: none;
  color: var(--ink-2);
  font-size: 14.5px;
  transition: color .2s;
}

.nav-links a:hover { color: var(--ink); }

.nav-cta {
  font-size: 14px;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 2px;
  transition: border-color .2s;
}

.nav-cta:hover { border-color: var(--accent); }
.nav-cta span { color: var(--ink-3); }

/* ── hero ────────────────────────────────────────────────── */

.hero {
  position: relative;
  padding: 72px 0 120px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  column-gap: 72px;
  align-items: start;
}

.hero > .eyebrow { grid-column: 1; justify-self: start; }

.hero h1 {
  grid-column: 1;
  margin: 28px 0 0;
  font-size: clamp(46px, 6.4vw, 82px);
}

.hero h1 em { display: inline-block; color: var(--accent); }

.hero-copy {
  grid-column: 1;
  margin: 26px 0 0;
  max-width: 30rem;
  color: var(--ink-2);
  font-size: 18.5px;
  line-height: 1.58;
  text-wrap: pretty;
}

.hero-actions {
  grid-column: 1;
  margin-top: 36px;
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
}

.hero-card {
  grid-column: 2;
  grid-row: 1 / span 5;
  margin-top: 8px;
  background: var(--card);
  border: 1px solid var(--rule-2);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow-lg);
  rotate: .55deg;
  transition: rotate .5s cubic-bezier(.2, .8, .2, 1), translate .5s cubic-bezier(.2, .8, .2, 1);
}

.hero-card:hover { rotate: 0deg; translate: 0 -4px; }

/* ── buttons ─────────────────────────────────────────────── */

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 100px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: translate .2s, box-shadow .2s, background .2s;
}

.button-dark {
  background: var(--ink);
  color: var(--paper);
  box-shadow: var(--shadow);
}

.button-dark:hover { translate: 0 -2px; box-shadow: var(--shadow-lg); }
.button span { opacity: .55; }

.text-link {
  text-decoration: none;
  font-size: 15px;
  color: var(--ink-2);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 3px;
  transition: color .2s, border-color .2s;
}

.text-link:hover { color: var(--ink); border-color: var(--accent); }

/* ── plan card ───────────────────────────────────────────── */

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  margin-bottom: 4px;
}

.card-kicker { color: var(--ink-3); }

.live {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--fresh);
  background: var(--fresh-bg);
  padding: 5px 11px;
  border-radius: 100px;
  font-size: 10px;
}

.live i {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--fresh);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .25; } }

.plan-row {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 16px;
  align-items: baseline;
  padding: 15px 0;
}

.plan-row time {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent);
  letter-spacing: -.01em;
}

.plan-row strong { display: block; font-weight: 600; font-size: 15.5px; letter-spacing: -.01em; }

.plan-row p { margin-top: 3px; color: var(--ink-3); font-size: 13.5px; line-height: 1.45; }

.plan-row b {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 400;
  color: var(--ink-3);
  opacity: .45;
}

.plan-line { height: 1px; background: var(--rule-2); }

.memory-note {
  margin-top: 18px;
  display: flex;
  gap: 12px;
  padding: 16px 18px;
  border-radius: 14px;
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 16%, transparent);
}

.memory-note span { color: var(--accent); font-size: 12px; line-height: 1.5; }
.memory-note p { font-size: 13.5px; line-height: 1.5; color: var(--ink-2); }
.memory-note strong { color: var(--ink); font-weight: 600; }

/* ── orbits ──────────────────────────────────────────────── */

.orbit {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
  filter: blur(70px);
}

.orbit-one {
  width: 460px; height: 460px;
  top: -80px; right: -120px;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 22%, transparent), transparent 68%);
}

.orbit-two {
  width: 380px; height: 380px;
  bottom: 40px; left: -160px;
  background: radial-gradient(circle, color-mix(in srgb, var(--fresh) 18%, transparent), transparent 68%);
}

/* ── belief ──────────────────────────────────────────────── */

.belief { padding: 92px 0; border-top: 1px solid var(--rule); }

.belief-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}

.belief-grid h2 { font-size: clamp(32px, 4vw, 50px); }
.belief-grid h2 em { color: var(--accent); }

.belief-grid p {
  color: var(--ink-2);
  font-size: 18px;
  line-height: 1.6;
  max-width: 30rem;
  padding-top: 8px;
  text-wrap: pretty;
}

/* ── comparison ──────────────────────────────────────────── */

.comparison { padding: 0 0 92px; }

.comparison-head { margin-bottom: 36px; }

.comparison-head p:last-child {
  font-family: var(--display);
  font-style: italic;
  font-size: clamp(22px, 2.8vw, 31px);
  color: var(--ink);
  letter-spacing: -.015em;
}

.comparison-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }

.answer {
  border: 1px solid var(--rule-2);
  border-radius: 20px;
  padding: 28px;
  background: var(--card);
  transition: translate .3s cubic-bezier(.2, .8, .2, 1), box-shadow .3s;
}

.answer:hover { translate: 0 -3px; box-shadow: var(--shadow); }

.answer.old { background: color-mix(in srgb, var(--stale-bg) 42%, var(--card)); }
.answer.current { background: color-mix(in srgb, var(--fresh-bg) 40%, var(--card)); }

.answer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.answer-top span:first-child { color: var(--ink-3); }

.status { padding: 5px 11px; border-radius: 100px; font-size: 10px; }
.answer.old .status { background: var(--stale-bg); color: var(--stale); }
.answer.current .status { background: var(--fresh-bg); color: var(--fresh); }

.answer h3 { font-size: clamp(24px, 2.6vw, 31px); }
.answer.current h3 em { color: var(--fresh); }

.answer ul {
  list-style: none;
  padding: 0;
  margin: 22px 0;
  border-top: 1px solid var(--rule-2);
}

.answer li {
  padding: 11px 0 11px 22px;
  border-bottom: 1px solid var(--rule-2);
  font-size: 15px;
  color: var(--ink-2);
  position: relative;
}

.answer li::before {
  content: "";
  position: absolute;
  left: 2px; top: 19px;
  width: 7px; height: 1.5px;
}

.answer.old li::before { background: var(--stale); }
.answer.current li::before { background: var(--fresh); }

.answer > p:last-child { font-size: 14.5px; color: var(--ink-3); line-height: 1.55; text-wrap: pretty; }

/* ── workflow ────────────────────────────────────────────── */

.workflow {
  padding: 92px 0;
  background: var(--paper-2);
  border-block: 1px solid var(--rule);
}

.workflow h2 { font-size: clamp(32px, 4vw, 50px); margin-bottom: 56px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }

.steps article { border-top: 2px solid var(--ink); padding-top: 20px; }

.step-number { display: block; color: var(--accent); margin-bottom: 14px; }

.steps h3 { font-size: 20px; margin-bottom: 10px; }

.steps p { color: var(--ink-2); font-size: 15.5px; line-height: 1.58; text-wrap: pretty; }

/* ── stack ───────────────────────────────────────────────── */

.stack { padding: 80px 0; }

.stack-items { display: flex; gap: 56px; flex-wrap: wrap; }

.stack-items div { display: flex; align-items: baseline; gap: 11px; }

.stack-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  translate: 0 -1px;
}

.stack-dot.cognee { background: #7b5cf0; }
.stack-dot.bright { background: #1a8fe3; }
.stack-dot.aws    { background: #e8912d; }

.stack-items strong { font-weight: 600; letter-spacing: -.015em; }

.stack-items small { color: var(--ink-3); font-size: 13.5px; }

/* ── closing ─────────────────────────────────────────────── */

.closing {
  padding: 96px 0 104px;
  border-top: 1px solid var(--rule);
  text-align: center;
}

.closing h2 { font-size: clamp(36px, 5.2vw, 64px); margin: 26px 0 36px; }
.closing h2 em { color: var(--accent); }

footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0 40px;
  border-top: 1px solid var(--rule);
  flex-wrap: wrap;
}

footer p { color: var(--ink-3); font-size: 13.5px; }

/* ── entrance ────────────────────────────────────────────── */

@media (prefers-reduced-motion: no-preference) {
  .hero > *, .hero-card {
    animation: rise .85s cubic-bezier(.2, .8, .2, 1) backwards;
  }

  .hero > .eyebrow  { animation-delay: .04s; }
  .hero h1          { animation-delay: .11s; }
  .hero-copy        { animation-delay: .19s; }
  .hero-actions     { animation-delay: .26s; }
  .hero-card        { animation-delay: .34s; }

}

/* ── responsive ──────────────────────────────────────────── */

@media (max-width: 940px) {
  .hero { grid-template-columns: 1fr; padding-bottom: 80px; }
  .hero-card { grid-column: 1; grid-row: auto; margin-top: 44px; rotate: 0deg; }
  .belief-grid, .comparison-grid, .steps { grid-template-columns: 1fr; gap: 28px; }
  .belief, .workflow { padding: 68px 0; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .nav-links { display: none; }
  .nav { gap: 16px; }
  .nav-cta { margin-left: auto; }
  .stack-items { gap: 28px; flex-direction: column; }
  .hero-actions { gap: 18px; }
}

@keyframes rise {
  from { opacity: 0; translate: 0 18px; }
  to   { opacity: 1; translate: 0 0; }
}