/*
 * roadmind.app — one stylesheet, no framework, no web fonts.
 *
 * System fonts on purpose: embedding Google Fonts from Google's servers sends
 * every visitor's IP address to Google, which German courts have held to be a
 * GDPR violation (LG München I, 3 O 17493/20). Nothing here loads from a third
 * party.
 */

:root {
  --violet-50: #f5f3ff;
  --violet-100: #ede9fe;
  --violet-200: #ddd6fe;
  --violet-500: #8b5cf6;
  --violet-600: #7c3aed;
  --violet-700: #6d28d9;
  --ink: #111827;
  --ink-2: #374151;
  --muted: #6b7280;
  --line: #e5e7eb;
  --bg: #ffffff;
  --bg-soft: #f9fafb;
  --green-bg: #ecfdf5;
  --green-ink: #047857;
  --radius: 18px;
  --max: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial,
    "Noto Sans", "Noto Sans Arabic", sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--violet-700); }
a:hover { color: var(--violet-600); }

.skip {
  position: absolute; left: -9999px; top: 8px;
  background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 10;
}
.skip:focus { left: 8px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* ---- header ------------------------------------------------------------ */
.site-header {
  position: sticky; top: 0; z-index: 5;
  background: rgb(255 255 255 / 0.86);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 700; font-size: 1.15rem; }
.brand img { width: 32px; height: 32px; border-radius: 9px; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { color: var(--ink-2); text-decoration: none; font-size: 0.95rem; }
.nav a:hover { color: var(--ink); }
.nav .btn { color: #fff; }
@media (max-width: 720px) { .nav .hide-sm { display: none; } }

/* ---- buttons ----------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px; border-radius: 12px; font-weight: 600; font-size: 1rem;
  text-decoration: none; border: 1px solid transparent; cursor: pointer;
  transition: background-color .15s, border-color .15s, transform .15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--violet-600); color: #fff; }
.btn-primary:hover { background: var(--violet-700); color: #fff; }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--violet-200); color: var(--ink); }
.btn-sm { padding: 8px 14px; font-size: 0.9rem; border-radius: 10px; }
:focus-visible { outline: 3px solid var(--violet-200); outline-offset: 2px; }

/* ---- hero -------------------------------------------------------------- */
.hero {
  background:
    radial-gradient(900px 420px at 85% -10%, var(--violet-100), transparent 70%),
    radial-gradient(700px 380px at -10% 10%, var(--violet-50), transparent 70%);
  padding: 72px 0 56px;
}
.hero .wrap { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
@media (max-width: 900px) { .hero .wrap { grid-template-columns: 1fr; gap: 40px; } .hero { padding-top: 48px; } }
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--violet-200); color: var(--violet-700);
  padding: 6px 12px; border-radius: 999px; font-size: 0.85rem; font-weight: 600;
}
.pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--violet-500); }
h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.08; letter-spacing: -0.02em;
  margin: 18px 0 18px;
}
h1 .accent { color: var(--violet-600); }
.lead { font-size: 1.2rem; color: var(--ink-2); max-width: 36rem; margin: 0 0 28px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.fineprint { margin-top: 14px; color: var(--muted); font-size: 0.9rem; }

/* ---- product illustration (pure HTML/CSS, no screenshot to go stale) ---- */
.device {
  background: #fff; border: 1px solid var(--line); border-radius: 28px;
  box-shadow: 0 30px 60px -20px rgb(76 29 149 / 0.25), 0 8px 20px -10px rgb(17 24 39 / 0.15);
  padding: 18px; max-width: 440px; margin-left: auto;
}
@media (max-width: 900px) { .device { margin: 0 auto; } }
.device-top { display: flex; align-items: center; gap: 10px; padding: 4px 4px 14px; border-bottom: 1px solid var(--line); }
.device-top .logo { width: 28px; height: 28px; border-radius: 8px; }
.device-top strong { font-size: 0.95rem; }
.chip-topic { margin-left: auto; background: var(--violet-100); color: var(--violet-700); font-size: 0.75rem; font-weight: 600; padding: 4px 10px; border-radius: 999px; }
.bubble-user {
  margin: 16px 0 12px auto; width: fit-content; max-width: 80%;
  background: var(--ink); color: #fff; padding: 10px 14px; border-radius: 16px 16px 4px 16px; font-size: 0.92rem;
}
.bubble-ai { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 16px 16px 16px 4px; padding: 14px; font-size: 0.92rem; color: var(--ink-2); }
.term { color: var(--violet-700); font-weight: 600; text-decoration: underline; text-decoration-color: var(--violet-200); text-decoration-thickness: 2px; text-underline-offset: 3px; }
.captured { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.captured span { background: var(--green-bg); color: var(--green-ink); font-size: 0.75rem; padding: 4px 9px; border-radius: 999px; }
.followups { margin-top: 12px; display: grid; gap: 8px; }
.followups div { border: 1px solid var(--line); border-radius: 12px; padding: 8px 12px; font-size: 0.85rem; color: var(--ink-2); background: #fff; }
.followups div::before { content: "→ "; color: var(--violet-500); }

/* ---- sections ---------------------------------------------------------- */
section.block { padding: 84px 0; }
section.block.soft { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.eyebrow { color: var(--violet-600); font-weight: 700; font-size: 0.85rem; letter-spacing: 0.08em; text-transform: uppercase; margin: 0 0 10px; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); line-height: 1.15; letter-spacing: -0.015em; margin: 0 0 14px; }
.section-lead { color: var(--ink-2); font-size: 1.1rem; max-width: 42rem; margin: 0 0 44px; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; counter-reset: step; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.step::before {
  counter-increment: step; content: counter(step);
  display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 10px;
  background: var(--violet-100); color: var(--violet-700); font-weight: 700; margin-bottom: 14px;
}
.step h3, .feature h3 { font-size: 1.15rem; margin: 0 0 8px; }
.step p, .feature p { margin: 0; color: var(--ink-2); }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 960px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .features { grid-template-columns: 1fr; } }
.feature { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; background: #fff; }
.feature .icon { width: 42px; height: 42px; border-radius: 12px; background: var(--violet-50); color: var(--violet-600); display: grid; place-items: center; margin-bottom: 14px; }
.feature .icon svg { width: 22px; height: 22px; }

.quote-band { text-align: center; }
.quote-band p { font-size: clamp(1.3rem, 2.6vw, 1.8rem); line-height: 1.35; max-width: 46rem; margin: 0 auto; font-weight: 600; letter-spacing: -0.01em; }

/* ---- faq --------------------------------------------------------------- */
.faq { max-width: 780px; }
.faq details { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 1.05rem; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--violet-600); font-size: 1.4rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 12px 0 0; color: var(--ink-2); }

/* ---- final cta --------------------------------------------------------- */
.final {
  background: linear-gradient(135deg, var(--violet-600), var(--violet-700));
  color: #fff; border-radius: 28px; padding: 56px 32px; text-align: center;
}
.final h2 { color: #fff; }
.final p { color: rgb(255 255 255 / 0.85); font-size: 1.1rem; margin: 0 auto 26px; max-width: 34rem; }
.final .btn-primary { background: #fff; color: var(--violet-700); }
.final .btn-primary:hover { background: var(--violet-50); color: var(--violet-700); }
.final .btn-ghost { background: transparent; color: #fff; border-color: rgb(255 255 255 / 0.45); }
.final .btn-ghost:hover { border-color: #fff; color: #fff; }
.final .cta-row { justify-content: center; }

/* ---- footer ------------------------------------------------------------ */
.site-footer { border-top: 1px solid var(--line); padding: 36px 0 48px; margin-top: 84px; color: var(--muted); font-size: 0.92rem; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; align-items: center; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--ink); text-decoration: underline; }

/* ---- legal pages ------------------------------------------------------- */
.legal { max-width: 780px; padding: 56px 20px 24px; margin: 0 auto; }
.legal h1 { font-size: clamp(2rem, 4vw, 2.6rem); margin: 6px 0 6px; }
.legal .updated { color: var(--muted); margin: 0 0 32px; }
.legal h2 { font-size: 1.3rem; margin: 36px 0 10px; }
.legal h3 { font-size: 1.05rem; margin: 22px 0 6px; }
.legal p, .legal li { color: var(--ink-2); }
.legal ul { padding-left: 22px; }
.legal li { margin: 6px 0; }
.legal .lang-switch { font-size: 0.92rem; }
.legal address { font-style: normal; color: var(--ink-2); }

.notfound { text-align: center; padding: 120px 20px 40px; }
.notfound h1 { margin-bottom: 8px; }
.notfound .spaced { margin-top: 24px; }
.legal .note { margin-top: 40px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}