/* ============================================================
   Handsfree — official site
   Sumi-e ink aesthetic: warm paper, ink black, cinnabar seal red
   ============================================================ */

:root {
  --paper:        #f7f4ec;
  --paper-2:      #efe9dc;
  --ink:          #16130f;
  --ink-soft:     #34302a;
  --muted:        #6b6558;
  --hairline:     rgba(22, 19, 15, 0.10);
  --hairline-2:   rgba(22, 19, 15, 0.06);
  --seal:         #b23a2e;   /* cinnabar / hanko red */
  --seal-ink:     #9c3025;
  --card:         #fffdf8;
  --shadow:       0 1px 2px rgba(22,19,15,.05), 0 12px 32px rgba(22,19,15,.06);
  --logo-invert:  0;

  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --serif: "Newsreader", ui-serif, Georgia, "Times New Roman", serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --maxw: 1120px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:      #131110;
    --paper-2:    #1b1815;
    --ink:        #ece7dc;
    --ink-soft:   #cfc9bd;
    --muted:      #948d7f;
    --hairline:   rgba(236, 231, 220, 0.12);
    --hairline-2: rgba(236, 231, 220, 0.07);
    --seal:       #e0685a;
    --seal-ink:   #e0685a;
    --card:       #1c1916;
    --shadow:     0 1px 2px rgba(0,0,0,.4), 0 16px 40px rgba(0,0,0,.45);
    --logo-invert: 1;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    radial-gradient(1200px 600px at 78% -8%, rgba(178,58,46,.05), transparent 60%),
    radial-gradient(900px 500px at 5% 10%, rgba(22,19,15,.035), transparent 55%);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

img { max-width: 100%; display: block; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.serif { font-family: var(--serif); }
.mono  { font-family: var(--mono); }
.seal  { color: var(--seal); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(140%) blur(10px);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  border-bottom: 1px solid var(--hairline-2);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.nav-brand { display: flex; align-items: center; gap: 10px; }
.nav-brand img { height: 22px; filter: invert(var(--logo-invert)); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a.link { color: var(--muted); font-size: 15px; font-weight: 500; transition: color .18s; }
.nav-links a.link:hover { color: var(--ink); }

@media (max-width: 680px) {
  .nav-links a.link { display: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-weight: 600; font-size: 15px;
  padding: 11px 20px; border-radius: 999px;
  border: 1px solid transparent;
  transition: transform .12s ease, box-shadow .18s ease, background .18s;
  cursor: pointer; white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink); color: var(--paper); box-shadow: var(--shadow); }
.btn-primary:hover { box-shadow: 0 4px 14px rgba(22,19,15,.18); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--hairline); }
.btn-ghost:hover { background: var(--paper-2); }

/* App Store badge button */
.appstore {
  display: inline-flex; align-items: center; gap: 11px;
  background: var(--ink); color: var(--paper);
  padding: 12px 22px; border-radius: 14px;
  box-shadow: var(--shadow);
  transition: transform .12s, box-shadow .18s;
}
.appstore:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(22,19,15,.22); }
.appstore svg { width: 26px; height: 26px; flex: none; }
.appstore .small { font-size: 11px; opacity: .8; line-height: 1; letter-spacing: .02em; }
.appstore .big { font-size: 19px; font-weight: 600; line-height: 1.15; }
.appstore .stack { display: flex; flex-direction: column; gap: 2px; text-align: left; }

/* ---------- Hero ---------- */
.hero { padding: 84px 0 72px; position: relative; overflow: hidden; }
.hero-grid {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 13px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase;
  color: var(--seal);
  border: 1px solid color-mix(in srgb, var(--seal) 35%, transparent);
  padding: 6px 13px; border-radius: 999px;
  background: color-mix(in srgb, var(--seal) 7%, transparent);
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: clamp(40px, 6vw, 66px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 22px 0 0;
}
.hero h1 em { font-style: italic; color: var(--seal); }
.hero p.lede {
  font-size: clamp(17px, 2.1vw, 20px);
  color: var(--ink-soft);
  max-width: 30em;
  margin: 22px 0 0;
}
.hero-cta { display: flex; align-items: center; gap: 16px; margin-top: 34px; flex-wrap: wrap; }
.hero-note { margin-top: 18px; font-size: 14px; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.hero-note b { color: var(--ink); font-weight: 600; }

.hero-art { position: relative; display: grid; place-items: center; }
.hero-art .bird {
  width: min(440px, 92%);
  filter: invert(var(--logo-invert)) drop-shadow(0 24px 40px rgba(22,19,15,.14));
  animation: rise 1.2s cubic-bezier(.2,.8,.2,1) both;
}
.hero-art .seal-stamp {
  position: absolute; right: 6%; bottom: 2%;
  width: 88px; height: 88px;
  border: 2.5px solid var(--seal); border-radius: 14px;
  color: var(--seal);
  display: grid; place-items: center;
  font-family: var(--serif); font-weight: 600; font-size: 15px; text-align: center;
  transform: rotate(-6deg);
  background: color-mix(in srgb, var(--seal) 8%, transparent);
  line-height: 1.15;
  animation: stamp 1s .5s cubic-bezier(.2,1.3,.4,1) both;
}

@keyframes rise { from { opacity: 0; transform: translateY(24px) scale(.98); } to { opacity: 1; transform: none; } }
@keyframes stamp { from { opacity: 0; transform: rotate(-6deg) scale(1.4); } to { opacity: 1; transform: rotate(-6deg) scale(1); } }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 24px; text-align: center; }
  .hero-cta, .hero-note { justify-content: center; }
  .eyebrow { }
  .hero-art { order: -1; }
  .hero-art .bird { width: min(320px, 74%); }
}

/* ---------- Free / on-device banner ---------- */
.banner {
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  background: var(--paper-2);
}
.banner-inner {
  display: flex; align-items: center; justify-content: center; gap: 40px;
  padding: 26px 0; flex-wrap: wrap; text-align: center;
}
.banner-item { display: flex; align-items: center; gap: 11px; font-size: 15px; color: var(--ink-soft); }
.banner-item b { color: var(--ink); font-weight: 600; }
.banner-item svg { width: 20px; height: 20px; color: var(--seal); flex: none; }

/* ---------- Sections ---------- */
section.block { padding: 92px 0; }
.section-head { max-width: 44rem; }
.section-head.center { margin: 0 auto; text-align: center; }
.section-head .kicker {
  font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--seal); margin: 0 0 14px;
}
.section-head h2 {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(30px, 4.4vw, 44px); line-height: 1.1; letter-spacing: -.02em;
  margin: 0;
}
.section-head p { font-size: 18px; color: var(--ink-soft); margin: 16px 0 0; }

/* ---------- Feature grid ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 52px; }
.card {
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: 18px;
  padding: 28px;
  box-shadow: var(--shadow);
  transition: transform .16s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(22,19,15,.10); }
.card .ic {
  width: 44px; height: 44px; border-radius: 12px;
  display: grid; place-items: center; margin-bottom: 18px;
  background: color-mix(in srgb, var(--seal) 10%, transparent);
  color: var(--seal);
  border: 1px solid color-mix(in srgb, var(--seal) 22%, transparent);
}
.card .ic svg { width: 22px; height: 22px; }
.card h3 { font-size: 19px; margin: 0 0 8px; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }

@media (max-width: 900px) { .features { grid-template-columns: 1fr; } }

/* ---------- How it works ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 54px; }
.step { position: relative; padding-top: 8px; }
.step .num {
  font-family: var(--serif); font-size: 15px; font-weight: 600;
  width: 38px; height: 38px; border-radius: 50%;
  display: grid; place-items: center;
  color: var(--paper); background: var(--ink);
  margin-bottom: 18px;
}
.step h3 { margin: 0 0 8px; font-size: 20px; letter-spacing: -.01em; }
.step p { margin: 0; color: var(--muted); font-size: 15.5px; }
.step code, .codeline {
  font-family: var(--mono); font-size: 14px;
  background: var(--paper-2); border: 1px solid var(--hairline);
  border-radius: 8px; padding: 3px 8px; color: var(--ink);
}
.codeblock {
  margin-top: 14px;
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 14.5px;
  background: var(--ink); color: #f4efe6;
  border-radius: 12px; padding: 13px 16px;
  box-shadow: var(--shadow);
  overflow-x: auto;
}
.codeblock .prompt { color: var(--seal); opacity: .9; }
.copybtn { margin-left: auto; background: transparent; border: 0; color: rgba(244,239,230,.6); cursor: pointer; font-size: 12px; font-family: var(--sans); }
.copybtn:hover { color: #fff; }

@media (max-width: 900px) { .steps { grid-template-columns: 1fr; gap: 34px; } }

/* ---------- Split spotlight (voice/privacy) ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split.reverse .split-art { order: 2; }
.split-art {
  background: var(--paper-2);
  border: 1px solid var(--hairline);
  border-radius: 22px;
  padding: 40px;
  min-height: 320px;
  display: grid; place-items: center;
  position: relative; overflow: hidden;
}
.split ul { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 14px; }
.split ul li { display: flex; gap: 12px; align-items: flex-start; font-size: 16px; color: var(--ink-soft); }
.split ul li svg { width: 20px; height: 20px; color: var(--seal); flex: none; margin-top: 3px; }
.split ul li b { color: var(--ink); }

/* phone mock */
.phone {
  width: 232px; border-radius: 34px; padding: 12px;
  background: var(--ink); box-shadow: 0 30px 60px rgba(22,19,15,.28);
}
.phone-screen {
  border-radius: 24px; background: var(--paper); overflow: hidden;
  border: 1px solid rgba(255,255,255,.05);
}
.phone-top { height: 26px; display: grid; place-items: center; }
.phone-notch { width: 84px; height: 6px; border-radius: 999px; background: rgba(22,19,15,.25); }
.chat { padding: 14px 14px 18px; display: grid; gap: 10px; }
.bubble { font-size: 13px; padding: 9px 12px; border-radius: 14px; max-width: 82%; line-height: 1.4; }
.bubble.me { background: var(--ink); color: var(--paper); justify-self: end; border-bottom-right-radius: 5px; }
.bubble.ai { background: var(--paper-2); color: var(--ink); border: 1px solid var(--hairline); border-bottom-left-radius: 5px; }
.bubble.perm { border: 1px dashed color-mix(in srgb, var(--seal) 45%, transparent); background: color-mix(in srgb, var(--seal) 7%, transparent); color: var(--ink); justify-self: stretch; max-width: 100%; }
.perm-row { display: flex; gap: 6px; margin-top: 8px; }
.perm-row span { font-size: 11px; font-weight: 600; padding: 4px 10px; border-radius: 8px; }
.perm-allow { background: var(--seal); color: #fff; }
.perm-deny { border: 1px solid var(--hairline); color: var(--muted); }
.mic-row { display: flex; align-items: center; justify-content: center; gap: 8px; padding: 4px 0 2px; color: var(--muted); font-size: 11px; }
.mic-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--seal); animation: pulse 1.4s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: .4; transform: scale(1.5); } }

@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; gap: 32px; }
  .split.reverse .split-art { order: 0; }
}

/* ---------- Screenshot showcase ---------- */
.shots {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 54px;
  align-items: start;
}
.shot {
  border-radius: 26px; overflow: hidden;
  box-shadow: 0 2px 6px rgba(22,19,15,.06), 0 22px 44px rgba(22,19,15,.10);
  transition: transform .2s ease, box-shadow .2s ease;
  background: var(--paper-2);
}
.shot:hover { transform: translateY(-6px); box-shadow: 0 30px 60px rgba(22,19,15,.16); }
.shot img { width: 100%; height: auto; display: block; }

@media (max-width: 860px) {
  .shots {
    grid-template-columns: none; grid-auto-flow: column; grid-auto-columns: 74%;
    overflow-x: auto; scroll-snap-type: x mandatory;
    margin-inline: -24px; padding: 4px 24px 16px; gap: 16px;
    -webkit-overflow-scrolling: touch;
  }
  .shot { scroll-snap-align: center; }
  .shot:hover { transform: none; }
}

/* ---------- Agents strip ---------- */
.agents { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 48px; }
.agent-card {
  background: var(--card); border: 1px solid var(--hairline); border-radius: 18px;
  padding: 30px; box-shadow: var(--shadow);
}
.agent-card .tag { font-family: var(--mono); font-size: 12px; color: var(--seal); letter-spacing: .04em; }
.agent-card h3 { font-size: 22px; margin: 8px 0 6px; }
.agent-card p { margin: 0; color: var(--muted); font-size: 15.5px; }
@media (max-width: 680px) { .agents { grid-template-columns: 1fr; } }

/* ---------- FAQ ---------- */
.faq { margin-top: 46px; display: grid; gap: 0; border-top: 1px solid var(--hairline); }
.faq details { border-bottom: 1px solid var(--hairline); padding: 6px 0; }
.faq summary {
  cursor: pointer; list-style: none; padding: 20px 4px;
  font-size: 18px; font-weight: 600; display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .chev { transition: transform .2s; color: var(--seal); flex: none; }
.faq details[open] summary .chev { transform: rotate(45deg); }
.faq p { margin: 0 4px 22px; color: var(--ink-soft); font-size: 16px; max-width: 60ch; }
.faq p code { font-family: var(--mono); font-size: 14px; background: var(--paper-2); border: 1px solid var(--hairline); border-radius: 6px; padding: 2px 6px; }

/* ---------- Final CTA ---------- */
.cta {
  text-align: center;
  border-radius: 28px;
  background: var(--ink);
  color: var(--paper);
  padding: 72px 32px;
  position: relative; overflow: hidden;
}
.cta .bird-ghost {
  position: absolute; inset: 0; margin: auto;
  width: 520px; opacity: .06; filter: invert(1);
  pointer-events: none;
}
.cta h2 { font-family: var(--serif); font-weight: 500; font-size: clamp(30px, 5vw, 48px); margin: 0; letter-spacing: -.02em; position: relative; }
.cta p { color: rgba(247,244,236,.72); font-size: 18px; margin: 16px auto 0; max-width: 34em; position: relative; }
.cta .hero-cta { justify-content: center; margin-top: 32px; position: relative; }
.cta .appstore { background: var(--paper); color: var(--ink); }
.cta .btn-ghost { color: var(--paper); border-color: rgba(247,244,236,.25); }
.cta .btn-ghost:hover { background: rgba(247,244,236,.08); }

/* ---------- Footer ---------- */
footer.site {
  border-top: 1px solid var(--hairline);
  padding: 52px 0 40px;
  margin-top: 96px;
}
.foot-grid { display: flex; align-items: flex-start; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.foot-brand img { height: 26px; filter: invert(var(--logo-invert)); margin-bottom: 14px; }
.foot-brand p { color: var(--muted); font-size: 14.5px; max-width: 26em; margin: 0; }
.foot-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.foot-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 0 0 14px; }
.foot-col a { display: block; color: var(--ink-soft); font-size: 15px; margin-bottom: 10px; transition: color .15s; }
.foot-col a:hover { color: var(--seal); }
.foot-bottom {
  margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--hairline-2);
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  color: var(--muted); font-size: 13.5px;
}

/* ---------- utilities ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}