/* ownsms — design system. Brand carried over from the Android app:
   Ultramarine + LiveGreen, chat-bubble + double-tick motif. */

:root {
  --ink:        #0E1116;
  --ink-2:      #161A21;
  --ultra:      #2952E3;
  --ultra-600:  #1E3FBF;
  --ultra-light:#6E86FF;
  --green:      #16C784;
  --amber:      #F5A623;
  --red:        #E5484D;
  --cloud:      #F6F7FB;
  --paper:      #FFFFFF;
  --line:       #E5E8F0;
  --ink-70:     #3A4150;
  --muted:      #626C7E;

  --font-display: "Bricolage Grotesque", "Inter", system-ui, sans-serif;
  --font-body:    "Inter", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  --container: 1120px;
  --radius:    18px;
  --radius-sm: 12px;
  --shadow:    0 24px 60px -24px rgba(26, 42, 108, 0.28);
  --shadow-sm: 0 8px 24px -12px rgba(26, 42, 108, 0.22);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

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

h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.05; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 24px; }

/* ---------- eyebrow / section headings ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ultra);
  font-weight: 500;
}
.section { padding-block: 96px; }
.section__head { max-width: 640px; margin-bottom: 48px; }
.section__head h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); margin-top: 14px; }
.section__head p { color: var(--muted); font-size: 1.08rem; margin-top: 14px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-body); font-weight: 600; font-size: 0.98rem;
  padding: 13px 22px; border-radius: 999px; border: 1px solid transparent;
  cursor: pointer; transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--ultra); color: #fff; box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--ultra-600); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn--ghost:hover { border-color: var(--ultra); color: var(--ultra); }
.btn--light { background: rgba(255,255,255,0.1); color: #fff; border-color: rgba(255,255,255,0.24); }
.btn--light:hover { background: rgba(255,255,255,0.18); }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.82);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav__row { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; letter-spacing: -0.02em; }
.brand svg { display: block; }
.nav__links { display: flex; align-items: center; gap: 28px; }
.nav__links a { color: var(--ink-70); font-size: 0.95rem; font-weight: 500; }
.nav__links a:hover { color: var(--ultra); }
.nav__cta { display: inline-flex; gap: 12px; align-items: center; }
.nav__burger { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; padding-block: 84px 96px; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(900px 480px at 78% -8%, rgba(110,134,255,0.20), transparent 60%),
    radial-gradient(700px 420px at 0% 108%, rgba(22,199,132,0.12), transparent 55%),
    linear-gradient(180deg, var(--cloud), var(--paper));
}
.hero__grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.hero h1 { font-size: clamp(2.5rem, 5.4vw, 4.15rem); font-weight: 800; margin-top: 18px; }
.hero h1 .g { background: linear-gradient(120deg, var(--ultra), var(--ultra-light)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__sub { color: var(--ink-70); font-size: 1.16rem; max-width: 30ch; margin-top: 22px; }
.hero__cta { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }
.hero__note { margin-top: 20px; font-size: 0.9rem; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.hero__note b { color: var(--green); font-weight: 600; }

/* ---------- signature: message ticket + status pipeline ---------- */
.ticket {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 26px; position: relative;
}
.ticket__head { display: flex; align-items: center; justify-content: space-between; }
.ticket__to { font-family: var(--font-mono); font-size: 1.02rem; font-weight: 500; }
.ticket__id { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); }
.ticket__text {
  margin-top: 14px; padding: 14px 16px; background: var(--cloud); border-radius: var(--radius-sm);
  color: var(--ink-70); font-size: 0.98rem;
}
.ticket__text b { color: var(--ink); font-weight: 600; }

.pipeline { margin-top: 24px; }
.pipeline__track { position: relative; height: 3px; background: var(--line); border-radius: 3px; margin: 22px 8px 0; }
.pipeline__fill {
  position: absolute; inset: 0 auto 0 0; width: 0; border-radius: 3px;
  background: linear-gradient(90deg, var(--amber), var(--ultra) 55%, var(--green));
  transition: width .5s ease;
}
.stages { display: flex; justify-content: space-between; margin-top: -13px; }
.stage { display: flex; flex-direction: column; align-items: center; gap: 9px; flex: 1; }
.stage__dot {
  width: 22px; height: 22px; border-radius: 999px; background: var(--paper);
  border: 2px solid var(--line); display: grid; place-items: center;
  transition: border-color .35s ease, background .35s ease, transform .35s ease; color: #fff;
}
.stage__label {
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted);
  transition: color .35s ease; letter-spacing: .01em;
}
.stage.is-on .stage__label { color: var(--ink); }
.stage[data-stage="queued"].is-on   .stage__dot { border-color: var(--amber); background: var(--amber); transform: scale(1.06); }
.stage[data-stage="sending"].is-on  .stage__dot { border-color: var(--ultra); background: var(--ultra); transform: scale(1.06); }
.stage[data-stage="sent"].is-on     .stage__dot { border-color: var(--ultra); background: var(--ultra); transform: scale(1.06); }
.stage[data-stage="delivered"].is-on .stage__dot { border-color: var(--green); background: var(--green); transform: scale(1.12); }
.stage__ticks { font-size: 0.7rem; font-weight: 700; opacity: 0; transition: opacity .3s ease .1s; }
.stage[data-stage="delivered"].is-on .stage__ticks { opacity: 1; }

/* ---------- code block ---------- */
.code {
  background: var(--ink); color: #E7ECFF; border-radius: var(--radius-sm);
  font-family: var(--font-mono); font-size: 0.86rem; line-height: 1.7;
  padding: 18px 20px; overflow-x: auto; position: relative;
}
.code .k { color: var(--ultra-light); }
.code .s { color: var(--green); }
.code .c { color: #7C8598; }
.code__copy {
  position: absolute; top: 12px; right: 12px; background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14); color: #cfd7f0; border-radius: 8px;
  font-family: var(--font-body); font-size: 0.76rem; padding: 5px 10px; cursor: pointer;
}
.code__copy:hover { background: rgba(255,255,255,0.16); }
.hero .code { margin-top: 24px; }

/* ---------- how it works ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.step { position: relative; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--paper); }
.step__n { font-family: var(--font-mono); font-size: 0.8rem; color: var(--ultra); font-weight: 500; }
.step h3 { font-size: 1.22rem; margin-top: 12px; }
.step p { color: var(--muted); margin-top: 8px; font-size: 0.98rem; }
.step__ico { width: 44px; height: 44px; border-radius: 12px; background: rgba(41,82,227,0.10); display: grid; place-items: center; margin-bottom: 16px; }

/* ---------- features ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { padding: 26px; border-radius: var(--radius); background: var(--paper); border: 1px solid var(--line); transition: box-shadow .2s ease, transform .2s ease; }
.feature:hover { box-shadow: var(--shadow-sm); transform: translateY(-2px); }
.feature h3 { font-size: 1.12rem; }
.feature p { color: var(--muted); margin-top: 8px; font-size: 0.95rem; }
.feature__tag { font-family: var(--font-mono); font-size: 0.72rem; color: var(--ultra); letter-spacing: .06em; }

/* ---------- status (dark) ---------- */
.band { background: var(--ink); color: #EDF0F7; }
.band .section__head h2 { color: #fff; }
.band .section__head p { color: #A7AFC0; }
.band .eyebrow { color: var(--ultra-light); }
.lifecycle { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; font-family: var(--font-mono); font-size: 0.95rem; }
.lifecycle .pill { padding: 8px 14px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.14); background: rgba(255,255,255,0.04); }
.lifecycle .pill.ok { border-color: rgba(22,199,132,0.5); color: var(--green); }
.lifecycle .arrow { color: #55607a; }
.lifecycle-note { margin-top: 22px; color: #A7AFC0; max-width: 60ch; }
.lifecycle-note b { color: var(--green); }

/* ---------- CTA ---------- */
.cta-band { text-align: center; }
.cta-band h2 { font-size: clamp(2rem, 4.4vw, 3rem); }
.cta-band p { color: var(--muted); margin-top: 14px; font-size: 1.1rem; }
.cta-band .hero__cta { justify-content: center; margin-top: 28px; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding-block: 40px; color: var(--muted); font-size: 0.9rem; }
.footer__row { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer a { color: var(--ink-70); }
.footer a:hover { color: var(--ultra); }

/* ---------- docs ---------- */
.docs { display: grid; grid-template-columns: 232px 1fr; gap: 48px; align-items: start; padding-block: 56px 96px; }
.docs__side { position: sticky; top: 92px; }
.docs__side a { display: block; padding: 7px 12px; border-radius: 8px; color: var(--muted); font-size: 0.92rem; }
.docs__side a:hover, .docs__side a.active { background: var(--cloud); color: var(--ultra); }
.docs__side .grp { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink); margin: 20px 12px 6px; }
.doc h2 { font-size: 1.8rem; margin-top: 8px; scroll-margin-top: 90px; }
.doc h3 { font-size: 1.2rem; margin-top: 40px; scroll-margin-top: 90px; }
.doc p { color: var(--ink-70); margin-top: 14px; }
.doc .code { margin-top: 16px; }
.doc ul { color: var(--ink-70); margin-top: 14px; padding-left: 20px; }
.doc li { margin-top: 6px; }
.doc code { font-family: var(--font-mono); font-size: 0.88em; background: var(--cloud); padding: 2px 6px; border-radius: 6px; color: var(--ultra-600); }

.table-wrap { overflow-x: auto; margin-top: 18px; }
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
td code { white-space: nowrap; }
.badge { font-family: var(--font-mono); font-size: 0.78rem; padding: 2px 9px; border-radius: 999px; font-weight: 500; }
.badge.get { background: rgba(22,199,132,0.14); color: #0E8f5f; }
.badge.post { background: rgba(41,82,227,0.12); color: var(--ultra-600); }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; gap: 40px; }
  .hero__sub { max-width: none; }
  .steps, .features { grid-template-columns: 1fr; }
  .docs { grid-template-columns: 1fr; gap: 8px; }
  .docs__side { position: static; display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 20px; }
  .docs__side .grp { display: none; }
  .nav__links { display: none; }
  .nav__burger { display: inline-flex; }
  .nav__cta .btn--ghost { display: none; }
  .nav.open .nav__links {
    display: flex; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column;
    background: var(--paper); border-bottom: 1px solid var(--line); padding: 12px 24px 20px; gap: 6px;
  }
}
@media (max-width: 560px) {
  .section { padding-block: 68px; }
  .stage__label { font-size: 0.64rem; }
}

@media (prefers-reduced-motion: reduce) {
  .feature, .btn, .pipeline__fill, .stage__dot { transition: none; }
}