/* Textquill — shared styles. No build step, no external fonts/CDNs. */

:root {
  --accent: #2563EB;
  --accent-hover: #1D4ED8;
  --accent-soft: #EFF6FF;
  --bg: #FFFFFF;
  --surface: #F8FAFC;
  --surface-2: #F1F5F9;
  --border: #E2E8F0;
  --text: #0F172A;
  --muted: #64748B;
  --navy: #0B0F1A;
  --navy-2: #131926;

  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);
  --shadow: 0 4px 12px rgba(15, 23, 42, .06), 0 12px 32px rgba(15, 23, 42, .08);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, .12), 0 24px 60px rgba(15, 23, 42, .12);

  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --maxw: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0 0 .5em;
  font-weight: 700;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.35rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 600; }

p { margin: 0 0 1rem; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-weight: 600;
  font-size: .98rem;
  padding: .72rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s ease, box-shadow .15s ease, transform .05s ease, border-color .15s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-secondary {
  background: var(--bg);
  color: var(--text);
  border-color: var(--border);
}
.btn-secondary:hover { background: var(--surface-2); color: var(--text); }
.btn-ghost-light {
  background: rgba(255,255,255,.08);
  color: #fff;
  border-color: rgba(255,255,255,.22);
}
.btn-ghost-light:hover { background: rgba(255,255,255,.16); color: #fff; }
.btn svg { width: 18px; height: 18px; }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 1rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-weight: 700;
  font-size: 1.12rem;
  color: var(--text);
  letter-spacing: -0.01em;
}
.brand img { width: 30px; height: 30px; display: block; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--muted);
  font-weight: 500;
  font-size: .95rem;
}
.nav-links a:hover { color: var(--text); }
.nav-cta { display: flex; align-items: center; gap: .75rem; }
.nav-cta .caption { font-size: .72rem; color: var(--muted); max-width: 130px; line-height: 1.25; }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 8px;
  cursor: pointer;
}
.nav-toggle svg { width: 22px; height: 22px; display: block; color: var(--text); }

/* ---------- Hero ---------- */
.hero { padding: clamp(3rem, 7vw, 6rem) 0 clamp(2rem, 5vw, 4rem); }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.kicker {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: .35rem .7rem;
  border-radius: 999px;
  margin-bottom: 1.1rem;
}
.hero p.sub {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 34ch;
  margin-bottom: 1.6rem;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; }
.hero-note { font-size: .78rem; color: var(--muted); margin: .9rem 0 0; }

.shot-frame {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  padding: 8px;
}
.shot-frame img { display: block; width: 100%; height: auto; border-radius: 10px; }

/* ---------- Sections ---------- */
section { scroll-margin-top: 80px; }
.section { padding: clamp(3rem, 6vw, 5.5rem) 0; }
.section-head { max-width: 640px; margin: 0 auto 3rem; text-align: center; }
.section-head .kicker { margin-bottom: .9rem; }
.section-head p { color: var(--muted); font-size: 1.08rem; }
.section.alt { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* ---------- Feature grid ---------- */
.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 1.4rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .18s ease, transform .18s ease, border-color .18s;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: #cbd5e1; }
.card .icon {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 11px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-bottom: 1rem;
}
.card .icon svg { width: 22px; height: 22px; }
.card h3 { margin-bottom: .35rem; }
.card p { color: var(--muted); font-size: .93rem; margin: 0; }

.modes-note {
  margin-top: 2rem;
  text-align: center;
  color: var(--muted);
  font-size: .98rem;
}
.badge {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: .2rem .65rem;
  margin: 0 .15rem;
}

/* ---------- How it works ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}
.step { text-align: left; }
.step .num {
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  margin-bottom: 1rem;
}
.step h3 { margin-bottom: .35rem; }
.step p { color: var(--muted); margin: 0; }

/* ---------- Feature split (screenshot section) ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.split .shot-frame { box-shadow: var(--shadow); }
.split ul { list-style: none; margin: 1.2rem 0 0; padding: 0; }
.split li { display: flex; gap: .6rem; margin-bottom: .7rem; color: var(--muted); }
.split li svg { width: 20px; height: 20px; color: var(--accent); flex-shrink: 0; margin-top: 2px; }

/* ---------- Privacy band (dark) ---------- */
.band {
  background: var(--navy);
  color: #fff;
  border-radius: 0;
}
.band .container { padding-top: clamp(3rem, 6vw, 5rem); padding-bottom: clamp(3rem, 6vw, 5rem); }
.band h2 { color: #fff; }
.band p { color: #cbd5e1; }
.band .kicker { background: rgba(59,130,246,.18); color: #93c5fd; }
.band-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(2rem,5vw,4rem); align-items: center; }
.privacy-list { list-style: none; margin: 1.4rem 0 0; padding: 0; }
.privacy-list li { display: flex; gap: .7rem; margin-bottom: .85rem; color: #e2e8f0; }
.privacy-list li svg { width: 22px; height: 22px; color: #60a5fa; flex-shrink: 0; }

/* ---------- Final CTA ---------- */
.cta-final {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  text-align: center;
  padding: clamp(3.5rem, 7vw, 6rem) 0;
}
.cta-final h2 { color: #fff; }
.cta-final p { color: #cbd5e1; max-width: 44ch; margin: 0 auto 1.8rem; }
.cta-final .hero-cta { justify-content: center; }
.cta-final .hero-note { color: #94a3b8; }

/* ---------- Footer ---------- */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: center;
}
.footer .brand { font-size: 1rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1.4rem; list-style: none; margin: 0; padding: 0; }
.footer-links a { color: var(--muted); font-size: .92rem; }
.footer-links a:hover { color: var(--text); }
.footer .fine { color: var(--muted); font-size: .8rem; margin: 1rem 0 0; width: 100%; }

/* ---------- Docs layout ---------- */
.docs-wrap {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 3rem;
  padding: 3rem 0;
  align-items: start;
}
.docs-nav {
  position: sticky;
  top: 88px;
  align-self: start;
}
.docs-nav h4 {
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  margin: 1.2rem 0 .5rem;
}
.docs-nav ul { list-style: none; margin: 0 0 .5rem; padding: 0; }
.docs-nav a {
  display: block;
  color: var(--muted);
  font-size: .92rem;
  padding: .3rem 0;
  border-left: 2px solid transparent;
  padding-left: .8rem;
  margin-left: -.8rem;
}
.docs-nav a:hover { color: var(--text); border-left-color: var(--border); }
.docs-content { max-width: 760px; min-width: 0; }
.docs-content h1 { margin-bottom: 1rem; }
.docs-content section { margin-bottom: 3rem; }
.docs-content h2 { font-size: 1.5rem; margin-bottom: .8rem; padding-bottom: .4rem; border-bottom: 1px solid var(--border); }
.docs-content h3 { margin-top: 1.6rem; }
.docs-content ul, .docs-content ol { padding-left: 1.3rem; color: var(--muted); }
.docs-content li { margin-bottom: .45rem; }
.docs-content p { color: #334155; }
kbd {
  font-family: var(--font);
  font-size: .82rem;
  font-weight: 600;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: .1rem .45rem;
  color: var(--text);
}
.callout {
  background: var(--accent-soft);
  border: 1px solid #dbeafe;
  border-radius: var(--radius-sm);
  padding: 1rem 1.2rem;
  margin: 1.2rem 0;
}
.callout p { color: #1e3a8a; margin: 0; font-size: .93rem; }

.faq-item { border-bottom: 1px solid var(--border); padding: 1.1rem 0; }
.faq-item h3 { margin: 0 0 .4rem; font-size: 1.05rem; }
.faq-item p { margin: 0; color: var(--muted); }

/* ---------- Legal / privacy page ---------- */
.legal { max-width: 760px; margin: 0 auto; padding: 3rem 0; }
.legal h1 { margin-bottom: .5rem; }
.legal .eff { color: var(--muted); font-size: .92rem; margin-bottom: 2rem; }
.legal h2 { font-size: 1.4rem; margin: 2.2rem 0 .7rem; }
.legal p, .legal li { color: #334155; }
.legal ul { padding-left: 1.3rem; }
.legal li { margin-bottom: .5rem; }

/* ---------- 404 ---------- */
.notfound {
  min-height: 70vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 3rem 0;
}
.notfound .code {
  font-size: clamp(4rem, 12vw, 7rem);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: .5rem;
}
.notfound p { color: var(--muted); font-size: 1.1rem; margin-bottom: 1.6rem; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero p.sub { max-width: none; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .band-grid { grid-template-columns: 1fr; }
  .docs-wrap { grid-template-columns: 1fr; gap: 1.5rem; }
  .docs-nav { position: static; border-bottom: 1px solid var(--border); padding-bottom: 1rem; }
  .docs-nav ul { display: flex; flex-wrap: wrap; gap: .3rem 1rem; }
  .docs-nav a { border-left: none; padding-left: 0; margin-left: 0; }
}

@media (max-width: 680px) {
  .nav-links { display: none; }
  .nav-cta .caption { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav.open .nav-links {
    display: flex;
    position: absolute;
    top: 64px; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: .2rem;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 1rem 24px 1.4rem;
    box-shadow: var(--shadow);
  }
  .nav.open .nav-links a { padding: .5rem 0; width: 100%; }
  .features { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}