/* Public pages: landing, plans, sign in. Shares the app's palette and type. */
:root {
  --mist: #eef0ec;
  --panel: #f7f8f5;
  --ink: #1d2b36;
  --ink-soft: #46555f;
  --muted: #66757a;
  --line: #cfd6d1;
  --route: #2f6f8f;
  --route-deep: #22546d;
  --route-soft: #d6e6ec;
  --landmark: #c9842b;
  --landmark-soft: #f3e3c9;
  --danger: #a8402e;
  --sans: "Public Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --serif: "Spectral", Georgia, "Times New Roman", serif;
  --measure: 36rem;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--mist) url("/static/contours.svg") center top / 1600px auto repeat-y;
}
a { color: var(--route); }
a:hover { color: var(--route-deep); }
:focus-visible { outline: 2px solid var(--route); outline-offset: 3px; border-radius: 4px; }
img, svg { display: block; max-width: 100%; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* navigation */
.nav { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--mist) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid transparent; }
.nav.is-scrolled { border-bottom-color: var(--line); }
.nav-row { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); text-decoration: none; font-weight: 800; font-size: 1.2rem; letter-spacing: -0.01em; }
.brand:hover { color: var(--ink); }
.nav-links { display: flex; gap: 22px; margin-left: 12px; }
.nav-links a { color: var(--ink-soft); text-decoration: none; font-size: 0.95rem; font-weight: 500; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); }
.nav-links a[aria-current="page"] { text-decoration: underline; text-decoration-color: var(--landmark); text-decoration-thickness: 2px; text-underline-offset: 6px; }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 20px; border-radius: 10px;
  font: 600 0.98rem/1 var(--sans); text-decoration: none; cursor: pointer;
  border: 1px solid transparent; transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}
.btn-primary { background: var(--route); color: #fff; }
.btn-primary:hover { background: var(--route-deep); color: #fff; }
.btn-quiet { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-quiet:hover { border-color: var(--ink-soft); color: var(--ink); }
.btn-text { background: none; color: var(--ink-soft); padding: 0 8px; }
.btn-text:hover { color: var(--ink); }
.btn[disabled] { opacity: 0.6; cursor: progress; }

/* hero */
.hero { padding: 72px 0 96px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr); gap: 56px; align-items: center; }
.hero h1 {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(2.6rem, 5.4vw, 4.4rem); line-height: 1.04; letter-spacing: -0.02em;
  margin: 0 0 24px; max-width: 13ch;
}
.hero-lede { font-size: 1.2rem; line-height: 1.55; color: var(--ink-soft); max-width: 32rem; margin: 0 0 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero-note { margin: 18px 0 0; font-size: 0.92rem; color: var(--muted); }

/* the trail illustration */
.trail-demo { position: relative; padding: 8px 0; }
.trail-question {
  margin: 0 0 22px; padding: 14px 18px; border-radius: 12px;
  background: var(--ink); color: #eef3f1; font-size: 0.98rem; line-height: 1.45; max-width: 30rem;
}
.trail-question span { display: block; font-size: 0.78rem; color: #9fb4bb; margin-bottom: 4px; }
.trail-stops { position: relative; display: grid; gap: 34px; }
.trail-route { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; overflow: visible; }
.trail-route { z-index: 0; }
.trail-route path { fill: none; stroke: var(--route); stroke-width: 3.2; stroke-dasharray: 0.5 8; stroke-linecap: round; }
.stop {
  position: relative; z-index: 1; width: min(100%, 23rem);
  background: var(--panel); border: 1px solid var(--line); border-radius: 4px 14px 14px 14px;
  padding: 14px 16px 15px; box-shadow: 0 14px 30px -24px rgba(29, 43, 54, 0.55);
}
.stop:nth-of-type(2) { margin-left: auto; }
.stop:nth-of-type(3) { margin-left: 10%; }
.stop-where { display: flex; align-items: center; gap: 8px; font-size: 0.8rem; color: var(--muted); margin-bottom: 6px; }
.stop-where b { color: var(--ink-soft); font-weight: 600; }
.stop-flag { width: 10px; height: 14px; flex: none; }
.stop p { margin: 0; font-family: var(--serif); font-size: 1.04rem; line-height: 1.45; }
.stop mark { background: var(--route-soft); color: inherit; padding: 0 2px; border-radius: 3px; }
.stop mark.is-answer { background: var(--landmark-soft); }
.stop-tag { display: inline-block; margin-left: auto; font-size: 0.72rem; padding: 1px 7px; border-radius: 99px; background: var(--landmark-soft); color: #7a4d12; }
.trail-answer {
  display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap;
  margin: 22px 0 0 auto; width: fit-content; max-width: 100%;
  padding: 12px 18px; border-radius: 12px; border: 2px solid var(--landmark); background: var(--panel);
}
.trail-answer span { font-size: 0.85rem; color: var(--muted); }
.trail-answer strong { font-family: var(--serif); font-weight: 500; font-size: 1.3rem; }

@media (prefers-reduced-motion: no-preference) {
  .trail-route path { stroke-dashoffset: 0; animation: route-in 1.6s 0.35s ease-out both; }
  .stop, .trail-answer { animation: stop-in 0.5s ease-out both; }
  .stop:nth-of-type(1) { animation-delay: 0.2s; }
  .stop:nth-of-type(2) { animation-delay: 0.75s; }
  .stop:nth-of-type(3) { animation-delay: 1.3s; }
  .trail-answer { animation-delay: 1.85s; }
}
@keyframes route-in { from { clip-path: inset(0 0 100% 0); } to { clip-path: inset(0 0 0 0); } }
@keyframes stop-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* sections */
.section { padding: 88px 0; }
.section-tight { padding-top: 0; }
.section h2 {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(1.9rem, 3.4vw, 2.6rem); line-height: 1.12; letter-spacing: -0.015em;
  margin: 0 0 14px; max-width: 22ch;
}
.section-lede { color: var(--ink-soft); max-width: var(--measure); margin: 0 0 44px; font-size: 1.1rem; }

/* same question, two tools */
.versus { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; background: var(--panel); }
.versus-side { padding: 30px 32px 32px; }
.versus-side + .versus-side { border-left: 1px solid var(--line); background: #fff; }
.versus-side h3 { margin: 0 0 18px; font-size: 1rem; font-weight: 700; }
.versus-side h3 small { display: block; font-weight: 400; color: var(--muted); font-size: 0.9rem; margin-top: 2px; }
.chat-bubble { font-family: var(--serif); font-size: 1.05rem; line-height: 1.6; color: var(--ink-soft); background: var(--mist); border-radius: 4px 14px 14px 14px; padding: 16px 18px; margin: 0; }
.versus-verdict { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 8px; font-size: 0.95rem; }
.versus-verdict li { display: flex; gap: 10px; align-items: flex-start; }
.versus-verdict svg { flex: none; margin-top: 4px; }
.mini-trail { list-style: none; margin: 0; padding: 0 0 0 22px; border-left: 2px dotted var(--route); display: grid; gap: 14px; }
.mini-trail li { position: relative; font-family: var(--serif); font-size: 1.02rem; line-height: 1.45; }
.mini-trail li::before { content: ""; position: absolute; left: -29px; top: 0.45em; width: 12px; height: 12px; border-radius: 50%; background: var(--panel); border: 2px solid var(--route); }
.mini-trail small { display: block; font-family: var(--sans); font-size: 0.8rem; color: var(--muted); }
.mini-answer { margin: 18px 0 0; font-weight: 600; }
.mini-answer span { background: var(--landmark-soft); padding: 1px 6px; border-radius: 4px; }

/* steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; counter-reset: step; }
.steps li { counter-increment: step; border-top: 2px solid var(--ink); padding-top: 18px; }
.steps li::before { content: counter(step); display: block; font-family: var(--serif); font-size: 2.4rem; line-height: 1; color: var(--route); margin-bottom: 14px; }
.steps h3 { margin: 0 0 8px; font-size: 1.12rem; }
.steps p { margin: 0; color: var(--ink-soft); }

/* qualities */
.qualities { display: grid; grid-template-columns: 1fr 1fr; gap: 0 64px; margin: 0; }
.qualities div { padding: 22px 0; border-bottom: 1px solid var(--line); }
.qualities dt { font-weight: 700; margin-bottom: 4px; }
.qualities dd { margin: 0; color: var(--ink-soft); max-width: 30rem; }

/* closing call */
.closing { padding: 80px 0 96px; }
.closing-box { background: var(--ink); color: #eef3f1; border-radius: 22px; padding: 56px; display: flex; gap: 32px; align-items: center; justify-content: space-between; flex-wrap: wrap; position: relative; overflow: hidden; }
.closing-box h2 { font-family: var(--serif); font-weight: 500; font-size: clamp(1.8rem, 3vw, 2.4rem); margin: 0 0 8px; line-height: 1.15; }
.closing-box p { margin: 0; color: #b9c8cc; }
.closing-box .btn-primary { background: var(--landmark); color: var(--ink); }
.closing-box .btn-primary:hover { background: #e0a54c; color: var(--ink); }

/* plans */
.plans-head { padding: 64px 0 40px; }
.plans-head h1 { font-family: var(--serif); font-weight: 500; font-size: clamp(2.3rem, 4.6vw, 3.4rem); line-height: 1.08; letter-spacing: -0.02em; margin: 0 0 14px; }
.plans-head p { margin: 0; color: var(--ink-soft); font-size: 1.15rem; max-width: var(--measure); }
.plans { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; max-width: 900px; }
.plan { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 32px; display: flex; flex-direction: column; }
.plan-pro { background: #fff; border: 2px solid var(--route); box-shadow: 0 24px 50px -36px rgba(34, 84, 109, 0.6); }
.plan h2 { margin: 0; font-size: 1.25rem; }
.plan-for { margin: 4px 0 22px; color: var(--muted); font-size: 0.95rem; }
.plan-price { display: flex; align-items: baseline; gap: 6px; margin: 0 0 24px; }
.plan-price strong { font-family: var(--serif); font-weight: 500; font-size: 3rem; line-height: 1; letter-spacing: -0.02em; }
.plan-price > span { color: var(--muted); }
.plan ul { list-style: none; padding: 0; margin: 0 0 28px; display: grid; gap: 11px; }
.plan li { display: flex; gap: 10px; align-items: flex-start; }
.plan li svg { flex: none; margin-top: 5px; }
.plan .btn { margin-top: auto; width: 100%; }
.plan-badge { margin-left: 10px; font-size: 0.78rem; font-weight: 600; padding: 3px 9px; border-radius: 99px; background: var(--route-soft); color: var(--route-deep); vertical-align: 2px; }
.plan-msg { margin: 12px 0 0; font-size: 0.9rem; color: var(--danger); min-height: 1.2em; }
.faq { max-width: 760px; margin-top: 72px; }
.faq h2 { font-family: var(--serif); font-weight: 500; font-size: 1.9rem; margin: 0 0 12px; }
.faq details { border-bottom: 1px solid var(--line); padding: 16px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin: 10px 0 0; color: var(--ink-soft); }

/* sign in */
.auth { min-height: calc(100vh - 64px); display: grid; place-items: center; padding: 40px 24px 80px; }
.auth-card { width: min(100%, 26rem); background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 36px 32px; box-shadow: 0 24px 50px -40px rgba(29, 43, 54, 0.6); }
.auth-card h1 { font-family: var(--serif); font-weight: 500; font-size: 2rem; margin: 0 0 6px; line-height: 1.15; }
.auth-card > p { margin: 0 0 26px; color: var(--ink-soft); }
.field { display: grid; gap: 6px; margin-bottom: 16px; }
.field label { font-size: 0.9rem; font-weight: 600; }
.field input { height: 46px; padding: 0 14px; border: 1px solid var(--line); border-radius: 10px; background: #fff; font: inherit; color: inherit; }
.field input:focus { border-color: var(--route); outline: none; box-shadow: 0 0 0 3px var(--route-soft); }
.field small { color: var(--muted); font-size: 0.82rem; }
.auth-card .btn-primary { width: 100%; margin-top: 6px; }
.auth-error { min-height: 1.4em; margin: 12px 0 0; color: var(--danger); font-size: 0.92rem; }
.auth-switch { margin: 18px 0 0; text-align: center; font-size: 0.95rem; color: var(--ink-soft); }

/* footer */
.footer { border-top: 1px solid var(--line); padding: 28px 0 40px; font-size: 0.9rem; color: var(--muted); }
.footer-row { display: flex; gap: 24px; flex-wrap: wrap; align-items: center; }
.footer-row nav { margin-left: auto; display: flex; gap: 18px; }
.footer a { color: var(--ink-soft); text-decoration: none; }
.footer a:hover { color: var(--ink); }

@media (max-width: 920px) {
  .hero { padding: 40px 0 72px; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .versus { grid-template-columns: 1fr; }
  .versus-side + .versus-side { border-left: 0; border-top: 1px solid var(--line); }
  .steps { grid-template-columns: 1fr; gap: 28px; }
  .qualities { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-row { gap: 12px; }
  .nav-actions .btn-quiet { display: none; }
  .stop, .stop:nth-of-type(2), .stop:nth-of-type(3) { width: 100%; margin-left: 0; }
  .trail-route { display: none; }
  .trail-stops { padding-left: 16px; border-left: 2px dotted var(--route); }
  .closing-box { padding: 36px 28px; }
  .versus-side { padding: 24px 22px; }
  .section { padding: 64px 0; }
}