/* CloakMe marketing site: Home, For business, Private number, Technology, FAQ.
   Colours come from the iOS app icon (ink + blue), same as the portal. */

:root {
  --ink: #1C1C2E;
  --ink-2: #2A2A40;
  --ink-line: #4A4A66;
  --blue: #2B88EB;
  --blue-text: #1A6FCB;
  --blue-soft: #E8F2FD;
  --blue-on-ink: #8EC3FA;
  --ground: #F5F7FB;
  --surface: #FFFFFF;
  --line: #E3E7EF;
  --line-2: #D7DCE6;
  --text: #1C1C2E;
  --muted: #5A6072;
  --on-ink: #C9CDDA;
  --on-ink-2: #B7BCCB;
  --green: #157F55;
  --green-text: #0F6B46;
  --green-soft: #E3F5EC;
  --red-text: #A12828;
  --red-soft: #FDE8E8;
  --amber: #A65A00;
  --amber-soft: #FFF6E5;
  --radius: 20px;
  --gutter: clamp(16px, 4vw, 48px);
  --section: clamp(56px, 7vw, 104px);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--ground);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--blue-text); }
h1, h2, h3 { font-family: var(--font-display); }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; border-radius: 6px; }

.wrap { max-width: 1240px; margin: 0 auto; padding: 0 var(--gutter); }
.section { padding-top: var(--section); }
.section--last { padding-bottom: var(--section); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; z-index: 100; background: #fff; padding: 8px 12px; }

/* ---------- Header / nav ---------- */
.site-header { background: var(--ink); color: #fff; position: relative; z-index: 20; }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 16px; padding-bottom: 16px; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; text-decoration: none; font-weight: 700; font-size: 20px; letter-spacing: -0.01em; }
.brand img { width: 36px; height: 36px; border-radius: 9px; }
.nav-links { display: flex; align-items: center; gap: 26px; font-size: 15px; }
.nav-links a { color: var(--on-ink); text-decoration: none; }
.nav-links a:hover { color: #fff; }
.nav-links a[aria-current="page"] { color: #fff; font-weight: 700; box-shadow: inset 0 -2px 0 var(--blue); padding-bottom: 2px; }
.nav-actions { display: flex; align-items: center; gap: 14px; }
.nav-signin { color: #fff; text-decoration: none; font-weight: 600; font-size: 15px; }
.nav-cta { background: var(--blue-text); color: #fff; text-decoration: none; font-weight: 600; font-size: 15px; padding: 10px 18px; border-radius: 999px; white-space: nowrap; }
.nav-cta:hover { background: #155DB0; }
/* User icon (signed out → /login) and account menu (signed in), kept from the old site */
.nav-user { position: relative; display: flex; }
.nav-btn { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 50%; color: rgba(255,255,255,0.75); background: none; border: 0; cursor: pointer; text-decoration: none; }
.nav-btn:hover { background: rgba(255,255,255,0.1); color: #fff; }
.nav-menu { position: absolute; top: calc(100% + 10px); right: 0; min-width: 220px; background: rgba(28,28,46,0.98); border: 1px solid rgba(255,255,255,0.1); border-radius: 14px; padding: 6px; box-shadow: 0 20px 50px rgba(0,0,0,0.45); z-index: 40; }
.nav-menu[hidden] { display: none; }
.nav-menu-item { display: block; width: 100%; padding: 11px 14px; border-radius: 8px; font: inherit; font-size: 15px; font-weight: 500; color: rgba(255,255,255,0.9); text-decoration: none; text-align: left; background: none; border: 0; cursor: pointer; }
.nav-menu-item:hover { background: rgba(255,255,255,0.08); color: #fff; }
.nav-menu-sep { height: 1px; background: rgba(255,255,255,0.1); margin: 4px 8px; }
.nav-menu-signout, .nav-menu-signout:hover { color: #ff6b62; }
@media (max-width: 420px) { .nav-cta { display: none; } }

.nav-toggle { display: none; background: transparent; border: 0; color: #fff; width: 44px; height: 44px; border-radius: 10px; cursor: pointer; align-items: center; justify-content: center; }
.nav-toggle:hover { background: var(--ink-2); }

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    display: none;
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--ink); padding: 8px var(--gutter) 20px;
    border-top: 1px solid var(--ink-2);
    box-shadow: 0 20px 40px rgba(0,0,0,0.35);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 4px; font-size: 17px; border-bottom: 1px solid var(--ink-2); }
  .nav-links a[aria-current="page"] { box-shadow: none; color: #fff; }
}

/* ---------- Type ---------- */
.eyebrow { font-size: 14px; font-weight: 700; color: var(--blue-text); text-transform: uppercase; letter-spacing: 0.08em; margin: 0; }
.on-ink .eyebrow { color: var(--blue-on-ink); }
.h1 { margin: 16px 0 0; font-size: clamp(40px, 6vw, 76px); line-height: 1.03; letter-spacing: -0.035em; font-weight: 800; }
.h1--sm { font-size: clamp(38px, 5.2vw, 66px); }
.h2 { margin: 12px 0 0; font-size: clamp(30px, 3.6vw, 48px); line-height: 1.08; letter-spacing: -0.03em; font-weight: 800; }
.h2--sm { font-size: clamp(28px, 3vw, 40px); }
.lead { margin: 18px 0 0; font-size: clamp(17px, 1.5vw, 20px); color: var(--muted); max-width: 640px; }
.on-ink .lead { color: var(--on-ink); }
.intro { max-width: 780px; }
.center { text-align: center; margin-left: auto; margin-right: auto; }
.muted { color: var(--muted); }

/* ---------- Buttons ---------- */
.btns { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 52px; padding: 14px 24px; border-radius: 14px; font-weight: 700; font-size: 16px; text-decoration: none; border: 1.5px solid transparent; cursor: pointer; font-family: inherit; }
.btn svg { flex: none; }
.btn--white { background: #fff; color: var(--ink); }
.btn--ink { background: var(--ink); color: #fff; }
.btn--blue { background: var(--blue-text); color: #fff; }
.btn--ghost { background: transparent; color: #fff; border-color: var(--ink-line); font-weight: 600; }
.btn--ghost:hover { border-color: #fff; }
.link-arrow { margin-top: 18px; display: inline-flex; align-items: center; gap: 8px; color: var(--blue-text); font-weight: 700; text-decoration: none; }
.link-arrow:hover { text-decoration: underline; }
@media (max-width: 560px) {
  .btns .btn { flex: 1 1 100%; }
}

/* ---------- Hero ---------- */
.hero { background: var(--ink); color: #fff; padding: clamp(40px, 6vw, 88px) 0 clamp(56px, 8vw, 120px); }
.hero__grid { display: flex; flex-wrap: wrap; gap: 56px; align-items: center; }
.hero__copy { flex: 1 1 460px; min-width: 0; }
.hero__art { flex: 1 1 400px; min-width: 0; display: flex; justify-content: center; }
.hero__note { margin: 18px 0 0; font-size: 14px; color: #9EA3B5; }
.pill-live { display: inline-flex; align-items: center; gap: 8px; background: rgba(43,136,235,0.16); color: var(--blue-on-ink); font-size: 14px; font-weight: 600; padding: 6px 14px; border-radius: 999px; }
.pill-live::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: #4CD08A; }
@media (max-width: 560px) {
  .hero__grid { gap: 40px; }
  .hero__copy, .hero__art { flex-basis: 100%; }
}

/* ---------- Cards ---------- */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.card--float { box-shadow: 0 18px 50px rgba(28,28,46,0.08); border-radius: 24px; padding: 24px; }
.card--ink { background: var(--ink); border-color: var(--ink); color: #fff; }
.card h3 { margin: 16px 0 0; font-size: 21px; letter-spacing: -0.01em; }
.card h3:first-child { margin-top: 0; }
.card p { margin: 6px 0 0; color: var(--muted); }
.card--ink p { color: var(--on-ink-2); }
.grid { display: grid; gap: 16px; margin-top: 40px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 270px), 1fr)); }
.grid--wide { grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); }
.icon-tile { width: 46px; height: 46px; border-radius: 13px; background: var(--blue-soft); color: var(--blue-text); display: flex; align-items: center; justify-content: center; }
.icon-tile--ink { background: var(--ink); color: #fff; }
.mini { margin-top: 18px; background: var(--ground); border-radius: 14px; padding: 14px; font-size: 14px; }
.mini b { display: block; }
.mini span { color: var(--muted); }

/* ---------- Split sections ---------- */
.split { display: flex; flex-wrap: wrap; gap: 48px; align-items: center; }
.split > * { flex: 1 1 420px; min-width: 0; }
.split--rev { flex-wrap: wrap-reverse; }
@media (max-width: 560px) { .split > * { flex-basis: 100%; } }
.checks { margin: 24px 0 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 12px; font-size: 16px; }
.checks li { display: flex; gap: 12px; }
.checks svg { flex: none; color: var(--green); margin-top: 1px; }

/* ---------- Hero call card ---------- */
.callcard { width: 100%; max-width: 470px; background: #fff; color: var(--text); border-radius: 26px; padding: 22px; box-shadow: 0 30px 80px rgba(0,0,0,0.45); }
.callcard__top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.callcard__who { display: flex; align-items: center; gap: 12px; }
.callcard__who b { display: block; font-size: 16px; }
.callcard__who span { font-size: 13px; color: var(--muted); }
.badge { font-size: 12px; font-weight: 700; padding: 5px 10px; border-radius: 999px; }
.badge--live { color: var(--green); background: var(--green-soft); }
.task { margin-top: 16px; background: var(--ground); border-radius: 14px; padding: 12px 14px; font-size: 14px; }
.label-caps { font-size: 12px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.bubbles { margin-top: 16px; display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.bubble { max-width: 85%; padding: 10px 14px; }
.bubble--in { align-self: flex-start; background: #EEF0F5; border-radius: 16px 16px 16px 4px; }
.bubble--out { align-self: flex-end; background: var(--blue-text); color: #fff; border-radius: 16px 16px 4px 16px; }
.bubble--me { align-self: flex-end; background: var(--blue-soft); border-radius: 16px 16px 4px 16px; font-style: italic; }
.bubble-time { align-self: center; font-size: 12px; color: var(--muted); }
.result { margin-top: 18px; border-top: 1px solid var(--line); padding-top: 16px; display: flex; gap: 12px; align-items: flex-start; }
.result__tick { width: 28px; height: 28px; flex: none; border-radius: 50%; background: var(--green); color: #fff; display: flex; align-items: center; justify-content: center; }
.result b { display: block; }
.result span { font-size: 13px; color: var(--muted); }

/* ---------- Log rows (receptionist) ---------- */
.log { margin-top: 10px; display: flex; flex-direction: column; gap: 10px; }
.log__row { display: flex; gap: 14px; align-items: flex-start; padding: 14px; border: 1px solid var(--line); border-radius: 14px; }
.log__row b { display: block; }
.log__row span { font-size: 14px; color: var(--muted); }
.log__icon { width: 36px; height: 36px; flex: none; border-radius: 10px; display: flex; align-items: center; justify-content: center; }
.tone-green { background: var(--green-soft); color: var(--green); }
.tone-amber { background: #FFF1E0; color: var(--amber); }
.tone-grey { background: #EEF0F5; color: var(--muted); }
.instructions { margin-top: 10px; background: var(--ground); border-radius: 14px; padding: 14px 16px; font-size: 15px; color: var(--ink-2); }

/* ---------- Guardrails ---------- */
.rules { margin-top: 18px; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr)); gap: 12px; }
.rule { border-radius: 14px; padding: 14px; font-size: 14px; }
.rule b { display: block; font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 4px; }
.rule--yes { background: var(--green-soft); }
.rule--yes b { color: var(--green-text); }
.rule--no { background: var(--red-soft); }
.rule--no b { color: var(--red-text); }
.ask { margin-top: 16px; display: flex; gap: 12px; align-items: flex-start; background: var(--amber-soft); border-radius: 14px; padding: 14px; font-size: 14px; }
.ask__q { width: 32px; height: 32px; flex: none; border-radius: 50%; background: var(--amber); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; }
.ask__btns { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 8px; }
.ask__btns span { font-weight: 600; padding: 10px 16px; border-radius: 10px; min-height: 44px; display: inline-flex; align-items: center; }
.ask__yes { background: var(--ink); color: #fff; }
.ask__no { background: #fff; border: 1px solid #C9CDDA; }

/* ---------- Dark band ---------- */
.band { margin-top: var(--section); background: var(--ink); color: #fff; padding: var(--section) 0; }
.tile { background: var(--ink-2); color: #fff; border-radius: 16px; padding: 18px; }
.tile b { display: block; }
.tile span { display: block; margin-top: 4px; font-size: 14px; color: var(--on-ink-2); }
.tiles { margin-top: 28px; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); gap: 14px; }
.fe-mark { display: flex; align-items: center; gap: 12px; }
.fe-mark img { width: 48px; height: 48px; border-radius: 12px; }

/* ---------- Message thread ---------- */
.thread { width: 100%; max-width: 400px; background: #fff; color: var(--text); border-radius: 30px; padding: 20px 18px 24px; box-shadow: 0 30px 80px rgba(0,0,0,0.45); }
.thread__head { text-align: center; border-bottom: 1px solid var(--line); padding-bottom: 14px; }
.thread__head img { width: 40px; height: 40px; border-radius: 50%; margin: 0 auto; }
.thread__head b { display: block; font-size: 15px; margin-top: 4px; }
.thread__head span { font-size: 12px; color: var(--muted); }
.thread .bubbles { font-size: 15px; gap: 8px; }

/* ---------- Trust ---------- */
.trust { display: flex; flex-wrap: wrap; gap: 40px; padding: clamp(28px, 4vw, 56px); border-radius: 28px; }
.trust__intro { flex: 1 1 300px; min-width: 0; }
.trust__list { flex: 2 1 520px; min-width: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); gap: 24px 32px; }
.trust__list b { display: block; font-size: 17px; }
.trust__list span { display: block; margin-top: 4px; color: var(--muted); }

/* ---------- Chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 10px 16px; font-weight: 600; font-size: 15px; }

/* ---------- Steps ---------- */
.steps { margin: 40px 0 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 16px; }
.step-num { width: 36px; height: 36px; border-radius: 50%; background: var(--blue-text); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center; }
.steps b { display: block; margin-top: 14px; font-size: 18px; }

/* ---------- Pricing ---------- */
.price-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 20px; }
.seg { display: inline-flex; background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 4px; }
.seg button { font: inherit; font-weight: 600; font-size: 15px; border: 0; background: transparent; color: var(--muted); padding: 10px 18px; border-radius: 999px; min-height: 44px; cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--ink); color: #fff; }
.prices { margin-top: 28px; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.price { position: relative; }
.price__name { font-weight: 700; font-size: 18px; }
.price__amount { margin-top: 10px; font-size: 42px; font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; }
.price__amount small { font-size: 16px; font-weight: 600; color: var(--muted); letter-spacing: 0; }
.card--ink .price__amount small { color: var(--on-ink-2); }
.price__per { margin-top: 6px; color: var(--muted); }
.card--ink .price__per { color: var(--on-ink-2); }
.price__save { position: absolute; top: 20px; right: 20px; background: var(--blue-text); color: #fff; font-size: 12px; font-weight: 700; padding: 4px 10px; border-radius: 999px; }
.price__foot { margin: 20px 0 0; color: var(--muted); font-size: 15px; }
.included { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 8px 24px; font-size: 15px; }
.included span { display: inline-flex; gap: 8px; align-items: center; }
.included svg { color: var(--green); }

/* ---------- FAQ ---------- */
.faq { margin-top: 28px; display: flex; flex-direction: column; gap: 12px; }
.faq details { background: #fff; border: 1px solid var(--line); border-radius: 16px; }
.faq summary { list-style: none; cursor: pointer; padding: 18px 56px 18px 22px; font-weight: 700; font-size: 17px; position: relative; min-height: 44px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: 24px; top: 50%; width: 10px; height: 10px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: translateY(-70%) rotate(45deg); transition: transform .15s; }
.faq details[open] summary::after { transform: translateY(-30%) rotate(225deg); }
.faq details p { margin: 0; padding: 0 22px 20px; color: var(--muted); }
.faq-layout { display: flex; flex-wrap: wrap; gap: 40px; align-items: flex-start; }
.faq-nav { flex: 1 1 220px; min-width: 0; position: sticky; top: 24px; display: flex; flex-direction: column; gap: 4px; }
.faq-nav a { color: var(--text); text-decoration: none; padding: 10px 14px; border-radius: 10px; font-weight: 600; }
.faq-nav a:hover { background: #fff; }
.faq-body { flex: 999 1 560px; min-width: 0; }
.faq-group + .faq-group { margin-top: 48px; }
.faq-group h2 { margin: 0; font-size: 26px; letter-spacing: -0.02em; scroll-margin-top: 24px; }
@media (max-width: 820px) {
  .faq-nav { position: static; flex-direction: row; flex-wrap: wrap; flex-basis: 100%; gap: 8px; }
  .faq-nav a { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px; font-size: 14px; }
}

/* ---------- Business timeline ---------- */
.timeline { margin: 40px 0 0; padding: 0; list-style: none; }
.tl { display: flex; gap: clamp(14px, 3vw, 32px); }
.tl__time { flex: none; width: clamp(70px, 9vw, 110px); padding-top: 22px; font-weight: 800; font-size: 18px; text-align: right; }
.tl__rail { flex: none; display: flex; flex-direction: column; align-items: center; }
.tl__dot { width: 18px; height: 18px; border-radius: 50%; background: var(--blue); border: 4px solid #D4E7FC; margin-top: 26px; }
.tl__dot--green { background: var(--green); border-color: #CDEBDC; }
.tl__line { flex: 1; width: 2px; background: var(--line-2); }
.tl__body { flex: 1 1 auto; min-width: 0; padding-bottom: 20px; }
.tl__card { display: flex; flex-wrap: wrap; gap: 16px 28px; padding: 20px 22px; }
.tl__card > div:first-child { flex: 1 1 300px; min-width: 0; }
.tl__card .mini { flex: 1 1 240px; margin-top: 0; }
.tl__tag { font-size: 12px; font-weight: 800; color: var(--blue-text); text-transform: uppercase; letter-spacing: 0.06em; }
.tl__tag--green { color: var(--green); }
.tl__title { margin-top: 4px; font-weight: 700; font-size: 18px; }
@media (max-width: 640px) {
  .tl { flex-wrap: wrap; gap: 0; }
  .tl__time { width: 100%; text-align: left; padding: 0 0 8px; font-size: 16px; color: var(--blue-text); }
  .tl__rail { display: none; }
}

/* ---------- Schedule form mock ---------- */
.form-mock { display: flex; flex-direction: column; gap: 14px; }
.form-mock .fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr)); gap: 12px; }
.fake-field { display: flex; flex-direction: column; gap: 6px; font-size: 13px; font-weight: 700; color: var(--muted); }
.fake-field span { font-size: 15px; font-weight: 500; color: var(--text); border: 1px solid var(--line-2); border-radius: 12px; padding: 12px; background: #fff; }
.fake-btn { background: var(--blue-text); color: #fff; font-weight: 700; text-align: center; padding: 14px; border-radius: 14px; }

/* ---------- Before / after ---------- */
.ba ul { margin: 14px 0 0; padding-left: 20px; display: flex; flex-direction: column; gap: 10px; }
.ba__bad { color: var(--red-text); font-weight: 800; font-size: 18px; }
.ba__good { color: #6FE0A6; font-weight: 800; font-size: 18px; }
.card--ink.ba li { color: #E2E5EE; }

/* ---------- Number cards (private) ---------- */
.lines { display: flex; flex-direction: column; gap: 14px; width: 100%; max-width: 460px; }
.line { border-radius: 22px; padding: 22px; display: flex; justify-content: space-between; align-items: center; gap: 12px; color: #fff; }
.line small { display: block; font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; opacity: 0.9; }
.line strong { font-size: clamp(22px, 2.4vw, 26px); font-weight: 800; letter-spacing: -0.01em; }
.line em { font-style: normal; font-size: 13px; font-weight: 700; background: rgba(255,255,255,0.2); padding: 5px 10px; border-radius: 999px; white-space: nowrap; }
.line--c0 { background: #1A6FCB; }
.line--c1 { background: #6A4FD8; }
.line--c2 { background: #157F55; }

/* ---------- CTA panel ---------- */
.cta { border-radius: 30px; padding: clamp(32px, 5vw, 72px); display: flex; flex-wrap: wrap; gap: 28px; align-items: center; justify-content: space-between; }
.cta--blue { background: var(--blue-text); color: #fff; }
.cta--blue .h2 { margin: 0; color: #fff; }
.cta--blue p { margin: 12px 0 0; font-size: 18px; color: #fff; }
.cta--ink { background: var(--ink); color: #fff; }
.cta--ink .h2 { margin: 0; }
.cta--ink p { margin: 12px 0 0; font-size: 18px; color: var(--on-ink); }
.cta > div:first-child { flex: 1 1 420px; min-width: 0; }
.cta .btns { margin-top: 0; }

/* ---------- Technology ---------- */
.arch { margin-top: 40px; display: flex; flex-wrap: wrap; align-items: stretch; gap: 12px; }
.arch__node { flex: 1 1 180px; min-width: 0; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 18px; }
.arch__node b { display: block; font-size: 16px; }
.arch__node span { display: block; margin-top: 4px; font-size: 14px; color: var(--muted); }
.arch__node--ink { background: var(--ink); border-color: var(--ink); color: #fff; }
.arch__node--ink span { color: var(--on-ink-2); }
.arch__node--fe { border: 2px solid var(--blue); }
.arch__arrow { flex: none; display: flex; align-items: center; color: var(--muted); }
@media (max-width: 900px) {
  .arch { flex-direction: column; }
  .arch__node { flex-basis: auto; }
  .arch__arrow { justify-content: center; transform: rotate(90deg); height: 24px; }
}

.seq-block { margin-top: 56px; }
.seq-block h3 { margin: 0; font-size: clamp(22px, 2.2vw, 28px); letter-spacing: -0.02em; }
.seq-block > p { margin: 8px 0 0; color: var(--muted); max-width: 760px; }
.seq-card { margin-top: 20px; background: #fff; border: 1px solid var(--line); border-radius: 24px; padding: 24px clamp(12px, 2vw, 28px) 28px; }
.seq { position: relative; }
.seq__heads { display: grid; gap: 12px; }
.seq__head { background: var(--ink); color: #fff; border-radius: 12px; padding: 12px 8px; text-align: center; font-weight: 700; font-size: 14px; line-height: 1.25; display: flex; align-items: center; justify-content: center; gap: 8px; min-height: 56px; }
.seq__head img { width: 22px; height: 22px; border-radius: 6px; }
.seq__head--fe { background: var(--blue-text); }
.seq__head--you { background: var(--green); }
.seq__body { position: relative; }
.seq__life { position: absolute; top: 0; bottom: 0; width: 0; border-left: 2px dashed #C9CDDA; }
.seq__row { position: relative; min-height: 64px; padding-bottom: 22px; display: flex; align-items: flex-end; }
.seq__row--note { padding-bottom: 10px; }
.seq__msg { position: absolute; bottom: 14px; height: 0; border-top: 2px solid var(--ink); }
.seq__msg--reply { border-top-style: dashed; border-top-color: var(--blue-text); }
.seq__msg::after { content: ""; position: absolute; top: -7px; width: 0; height: 0; border-top: 6px solid transparent; border-bottom: 6px solid transparent; }
.seq__msg--right::after { right: -1px; border-left: 10px solid var(--ink); }
.seq__msg--left::after { left: -1px; border-right: 10px solid var(--ink); }
.seq__msg--reply.seq__msg--right::after { border-left-color: var(--blue-text); }
.seq__msg--reply.seq__msg--left::after { border-right-color: var(--blue-text); }
.seq__label { position: relative; flex: none; font-size: 13px; line-height: 16px; text-align: center; color: var(--ink-2); padding: 0 6px; }
.seq__label b { color: var(--blue-text); margin-right: 4px; }
.seq__label span { background: #fff; padding: 1px 4px; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
.seq__note { position: relative; flex: none; transform: translateX(-50%); background: var(--amber-soft); color: var(--ink); border: 1px solid #F1D9A8; border-radius: 10px; font-size: 13px; line-height: 16px; padding: 7px 10px; text-align: center; max-width: 30%; }
/* Visually hidden on wide screens (the diagram shows it), still read by screen readers */
.seq-list { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; margin: 0; padding: 0; list-style: none; counter-reset: s; }
.seq-list li { counter-increment: s; position: relative; padding: 12px 0 12px 44px; border-bottom: 1px solid var(--line); font-size: 15px; }
.seq-list li:last-child { border-bottom: 0; }
.seq-list li::before { content: counter(s); position: absolute; left: 0; top: 12px; width: 30px; height: 30px; border-radius: 50%; background: var(--ink); color: #fff; font-weight: 800; font-size: 14px; display: flex; align-items: center; justify-content: center; }
.seq-list li.reply::before { background: var(--blue-text); }
.seq-list li.note::before { background: var(--amber); }
.seq-list .who { display: block; font-size: 12px; font-weight: 800; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
@media (max-width: 760px) {
  .seq { display: none; }
  .seq-list { position: static; width: auto; height: auto; overflow: visible; clip: auto; white-space: normal; }
}
.legend { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 13px; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 8px; }
.legend i { display: inline-block; width: 28px; border-top: 2px solid var(--ink); }
.legend i.dash { border-top: 2px dashed var(--blue-text); }

.code { margin-top: 20px; background: var(--ink); color: #E2E5EE; border-radius: 18px; padding: 20px 22px; font: 14px/1.6 ui-monospace, "SF Mono", Menlo, Consolas, monospace; overflow-x: auto; white-space: pre; }
.code .c { color: #8F95AA; }
.code .k { color: var(--blue-on-ink); }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: var(--on-ink-2); }
.footer { display: flex; flex-wrap: wrap; gap: 28px 40px; justify-content: space-between; padding-top: 48px; padding-bottom: 40px; font-size: 14px; }
.footer__brand { flex: 1 1 260px; min-width: 0; }
.footer__brand .brand { font-size: 18px; }
.footer__brand .brand img { width: 30px; height: 30px; border-radius: 8px; }
.footer__brand p { margin: 12px 0 0; max-width: 320px; }
.footer__col { display: flex; flex-direction: column; gap: 10px; min-width: 140px; }
.footer__col b { color: #fff; font-size: 14px; }
.site-footer a { color: var(--on-ink-2); text-decoration: none; }
.site-footer a:hover { color: #fff; }
.site-footer .brand { color: #fff; }
.footer__legal { border-top: 1px solid var(--ink-2); padding-top: 20px; padding-bottom: 28px; font-size: 13px; display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }