/* Buddy Talk — one dark palette, taken from the app's own screens and icon. */
:root {
  color-scheme: dark;
  --ground: #0f1226;
  --surface: #171b36;
  --surface-2: #1f2446;
  --line: #2c3260;
  --text: #eef0fa;
  --muted: #a3a9cc;
  --faint: #6f76a3;
  --cyan: #45d8e6;
  --blue: #3b82e8;
  --pink: #f08db4;
  --on-accent: #0b1020;
  --display: "Bricolage Grotesque", "Trebuchet MS", system-ui, sans-serif;
  --body: "Onest", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --radius: 18px;
}

* { box-sizing: border-box; }
html { background: var(--ground); }
body {
  margin: 0;
  background: var(--ground);
  color: var(--text);
  font: 400 17px/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--cyan); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 10px; }

.wrap { max-width: 1120px; margin: 0 auto; padding-inline: 20px; }

h1, h2, h3 { font-family: var(--display); line-height: 1.05; text-wrap: balance; margin: 0; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.6rem, 6.4vw, 4.8rem); font-weight: 800; }
h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); font-weight: 750; }
h3 { font-size: 1.2rem; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 34ch; }
.eyebrow { font-size: 0.78rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); }

/* ---------- header ---------- */
.top { padding-block: 22px; }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font: 700 1.15rem var(--display); }
.brand img { width: 36px; height: 36px; border-radius: 10px; }
.top nav { display: flex; gap: 22px; font-size: 0.95rem; }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover { color: var(--text); }

/* ---------- hero ---------- */
.hero { padding-block: 40px 88px; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto auto; width: 760px; height: 760px; max-width: 100%;
  background: radial-gradient(circle at 60% 40%, rgba(69,216,230,.18), transparent 60%),
              radial-gradient(circle at 30% 70%, rgba(240,141,180,.12), transparent 60%);
  pointer-events: none;
}
.hero .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; position: relative; }
.hero-copy { display: flex; flex-direction: column; gap: 26px; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, var(--cyan), var(--pink)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- store buttons ---------- */
.stores { display: flex; flex-wrap: wrap; gap: 12px; }
.store {
  display: inline-flex; align-items: center; gap: 12px; min-width: 200px;
  padding: 11px 20px 11px 16px; border-radius: 14px; text-decoration: none;
  background: var(--text); color: var(--on-accent); border: 1px solid var(--text);
  transition: transform .15s ease, box-shadow .15s ease;
}
.store:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -10px rgba(69,216,230,.55); }
.store svg { width: 26px; height: 26px; flex: none; }
.store span { display: flex; flex-direction: column; line-height: 1.15; }
.store small { font-size: 0.72rem; letter-spacing: 0.02em; opacity: .75; }
.store b { font: 700 1.1rem var(--display); }
.store.soon { background: transparent; color: var(--muted); border-color: var(--line); cursor: default; }
.store.soon:hover { transform: none; box-shadow: none; }
.store.is-yours { box-shadow: 0 0 0 3px rgba(69,216,230,.45); }
.store-note { font-size: 0.88rem; color: var(--faint); }

/* ---------- phone mock ---------- */
.phone {
  justify-self: center; width: 100%; max-width: 360px;
  background: var(--surface); border: 1px solid var(--line); border-radius: 34px;
  padding: 22px 18px 20px; box-shadow: 0 40px 80px -30px rgba(0,0,0,.7);
  display: flex; flex-direction: column; gap: 18px;
}
.phone-head { display: flex; align-items: center; gap: 12px; }
.phone-head img { width: 42px; height: 42px; border-radius: 12px; }
.phone-head b { font: 700 1rem var(--display); display: block; }
.phone-head small { color: var(--cyan); font-size: 0.8rem; }
.chat { display: flex; flex-direction: column; gap: 8px; }
.msg { max-width: 82%; padding: 9px 14px; border-radius: 18px; font-size: 0.95rem; line-height: 1.4; }
.msg.you { align-self: flex-end; background: var(--surface-2); color: var(--text); border-bottom-right-radius: 6px; }
.msg.buddy { align-self: flex-start; background: linear-gradient(135deg, #2a6fd6, #2fb7cc); color: #fff; border-bottom-left-radius: 6px; }
.wave { display: flex; align-items: center; justify-content: center; gap: 5px; height: 44px; padding-top: 6px; border-top: 1px solid var(--line); }
.wave i { display: block; width: 5px; border-radius: 3px; background: linear-gradient(var(--cyan), var(--pink)); height: 30%; animation: talk 1.2s ease-in-out infinite; }
.wave i:nth-child(2n) { animation-delay: -.3s; }
.wave i:nth-child(3n) { animation-delay: -.7s; }
.wave i:nth-child(5n) { animation-delay: -.5s; }
@keyframes talk { 0%,100% { height: 22%; } 50% { height: 92%; } }

/* ---------- sections ---------- */
section { padding-block: 84px; }
.section-head { display: flex; flex-direction: column; gap: 14px; margin-bottom: 44px; max-width: 640px; }
.section-head p { color: var(--muted); }
.band { background: var(--surface); border-block: 1px solid var(--line); }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px 48px; }
.feature { display: flex; flex-direction: column; gap: 10px; padding-top: 18px; border-top: 1px solid var(--line); }
.feature p { color: var(--muted); font-size: 0.98rem; }
.feature .quote { color: var(--cyan); font-family: var(--display); font-weight: 600; }

/* languages */
.langs { display: flex; flex-wrap: wrap; gap: 10px 14px; font: 700 clamp(1.4rem, 3.4vw, 2.3rem)/1.2 var(--display); }
.langs span { color: var(--faint); transition: color .3s; }
.langs span.on { color: var(--text); }
.lang-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.lang-grid p { color: var(--muted); }
.lang-grid .copy { display: flex; flex-direction: column; gap: 16px; }

/* plan */
.plan { display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: center; padding: 40px; border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(59,130,232,.22), rgba(240,141,180,.14)); border: 1px solid var(--line); }
.plan ul { margin: 16px 0 0; padding: 0; list-style: none; display: grid; gap: 8px; color: var(--muted); }
.plan li::before { content: "—"; color: var(--cyan); margin-right: 10px; }

/* faq */
.faq { display: grid; gap: 0; max-width: 760px; }
.faq details { border-bottom: 1px solid var(--line); padding-block: 18px; }
.faq summary { cursor: pointer; font: 600 1.1rem var(--display); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--cyan); font-size: 1.4rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--muted); margin-top: 10px; }

/* footer */
footer { padding-block: 40px 56px; border-top: 1px solid var(--line); color: var(--faint); font-size: 0.9rem; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
footer a { color: var(--muted); }

/* ---------- privacy page ---------- */
.doc { max-width: 720px; padding-block: 40px 80px; }
.doc h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); margin-bottom: 10px; }
.doc h2 { font-size: 1.45rem; margin: 44px 0 12px; }
.doc p, .doc li { color: var(--muted); }
.doc p + p { margin-top: 12px; }
.doc ul { padding-left: 20px; display: grid; gap: 6px; }
.doc strong { color: var(--text); font-weight: 600; }
.todo { background: rgba(240,141,180,.16); color: var(--pink); padding: 1px 6px; border-radius: 6px; font-weight: 600; }

@media (max-width: 860px) {
  .hero .wrap, .lang-grid { grid-template-columns: 1fr; gap: 44px; }
  .features { grid-template-columns: 1fr 1fr; }
  .plan { grid-template-columns: 1fr; padding: 28px; }
  .top nav { display: none; }
}
@media (max-width: 560px) {
  .features { grid-template-columns: 1fr; gap: 28px; }
  section { padding-block: 60px; }
  .store { flex: 1 1 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .wave i { animation: none; height: 50%; }
  .store, .langs span { transition: none; }
}

/* ---------- language menu ---------- */
.brand { margin-right: auto; }
.lang-menu { position: relative; }
.lang-menu summary {
  display: flex; align-items: center; gap: 7px; cursor: pointer; list-style: none;
  padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px;
  color: var(--muted); font-size: 0.82rem; font-weight: 600; letter-spacing: 0.04em;
}
.lang-menu summary::-webkit-details-marker { display: none; }
.lang-menu summary:hover, .lang-menu[open] summary { color: var(--text); border-color: var(--faint); }
.lang-menu summary svg { width: 16px; height: 16px; }
.lang-menu ul {
  position: absolute; right: 0; top: calc(100% + 8px); z-index: 10;
  min-width: 190px; max-height: min(60vh, 420px); overflow-y: auto;
  margin: 0; padding: 6px; list-style: none;
  background: var(--surface); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: 0 20px 40px -16px rgba(0,0,0,.6);
}
.lang-menu a { display: block; padding: 8px 12px; border-radius: 9px; color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.lang-menu a:hover { background: var(--surface-2); color: var(--text); }
.lang-menu a[aria-current] { color: var(--text); font-weight: 600; }
.lang-menu a[aria-current]::after { content: "✓"; float: right; color: var(--cyan); }