:root {
  --ground:       #FAFAF9;
  --surface:      #FFFFFF;
  --surface-sunk: #F1F2F0;
  --ink:          #15181A;
  --ink-soft:     #414947;
  --muted:        #6C7472;
  --rule:         #E2E4E1;
  --rule-strong:  #CFD3CF;

  --accent:       #0F6E6C;
  --accent-soft:  #E2F0EF;
  --accent-ink:   #0B5250;
  --on-accent:    #FFFFFF;

  --p-a: #B4530A;  --p-a-bg: #FBEEE1;
  --p-b: #2C5FA8;  --p-b-bg: #E5EDF9;
  --p-c: #3F7A45;  --p-c-bg: #E6F1E7;

  --warn:    #A6431B;
  --warn-bg: #FBEAE3;

  --shadow: 0 1px 2px rgba(20,24,22,.05), 0 10px 30px -14px rgba(20,24,22,.20);

  --display: ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", sans-serif;
  --body: ui-sans-serif, -apple-system, system-ui, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ground:       #101312;
    --surface:      #191D1C;
    --surface-sunk: #232827;
    --ink:          #EBEEEC;
    --ink-soft:     #C2C8C5;
    --muted:        #8B9491;
    --rule:         #2C3231;
    --rule-strong:  #3C4442;

    --accent:       #5CBCB7;
    --accent-soft:  #12302F;
    --accent-ink:   #8FD6D2;
    --on-accent:    #08201F;

    --p-a: #E9944A;  --p-a-bg: #33220F;
    --p-b: #7FAAE8;  --p-b-bg: #16233A;
    --p-c: #7FBE86;  --p-c-bg: #16291A;

    --warn:    #E08A62;
    --warn-bg: #33190F;

    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 12px 32px -16px rgba(0,0,0,.75);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: var(--display); margin: 0; text-wrap: balance; line-height: 1.16; }
p { margin: 0; }
a { color: var(--accent-ink); }

.wrap {
  max-width: 1020px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 36px);
}

/* ---- header ---- */
.site-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 22px 0 8px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand .mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--accent); color: var(--on-accent);
  display: grid; place-items: center;
  font-family: var(--display); font-weight: 700; font-size: 1rem;
}
.brand .name { font-family: var(--display); font-weight: 680; font-size: 1.02rem; }
.site-head nav { display: flex; gap: 18px; font-size: .92rem; }
.site-head nav a { color: var(--muted); text-decoration: none; }
.site-head nav a:hover { color: var(--ink); }

/* ---- hero ---- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
  padding: clamp(40px, 7vw, 76px) 0 clamp(32px, 5vw, 56px);
}
@media (max-width: 800px) { .hero { grid-template-columns: 1fr; } }

.hero h1 {
  font-size: clamp(2.2rem, 6vw, 3.5rem);
  line-height: 1.02;
  letter-spacing: -.028em;
  font-weight: 700;
  max-width: 15ch;
}
.hero .sub {
  margin-top: 18px;
  font-size: clamp(1.05rem, 2.2vw, 1.2rem);
  color: var(--ink-soft);
  max-width: 46ch;
}
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 28px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--display); font-weight: 650; font-size: 1rem;
  text-decoration: none; border-radius: 999px;
  padding: 13px 22px;
  background: var(--accent); color: var(--on-accent);
  border: 1px solid var(--accent);
}
.btn:hover { filter: brightness(1.08); }
.btn.secondary { background: transparent; color: var(--ink); border-color: var(--rule-strong); }
.btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.req { font-size: .84rem; color: var(--muted); }

/* ---- the ticket, the app's signature object ---- */
.ticket {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-left: 4px solid var(--p-a);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 18px 20px;
  display: flex; flex-direction: column; gap: 10px;
}
.ticket + .ticket { margin-top: 14px; }
.ticket.b { border-left-color: var(--p-b); }
.ticket.c { border-left-color: var(--p-c); }
.ticket .place {
  font-size: .72rem; font-weight: 700; letter-spacing: .07em;
  text-transform: uppercase; color: var(--muted);
}
.ticket .who { display: flex; align-items: center; gap: 9px; }
.avatar {
  width: 28px; height: 28px; border-radius: 9px;
  display: grid; place-items: center;
  font-family: var(--display); font-weight: 700; font-size: .8rem;
  background: var(--p-a-bg); color: var(--p-a);
}
.avatar.b { background: var(--p-b-bg); color: var(--p-b); }
.avatar.c { background: var(--p-c-bg); color: var(--p-c); }
.ticket .title { font-family: var(--display); font-weight: 680; font-size: 1.05rem; }
.ticket ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 4px; }
.ticket li { font-family: var(--mono); font-size: .84rem; color: var(--ink-soft); }
.ticket li::before { content: "— "; color: var(--muted); }
.ticket .flag {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .8rem; font-weight: 600;
  color: var(--warn); background: var(--warn-bg);
  border-radius: 8px; padding: 6px 10px; align-self: flex-start;
}

/* ---- sections ---- */
section { padding: clamp(38px, 6vw, 64px) 0; border-top: 1px solid var(--rule); }
.eyebrow {
  font-size: .74rem; font-weight: 700; letter-spacing: .13em;
  text-transform: uppercase; color: var(--muted);
}
section h2 {
  font-size: clamp(1.5rem, 3.6vw, 2rem);
  letter-spacing: -.018em; font-weight: 690;
  margin-top: 10px; max-width: 20ch;
}
section .lede { margin-top: 14px; color: var(--ink-soft); max-width: 62ch; }

.grid {
  display: grid; gap: 18px; margin-top: 32px;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}
.card {
  background: var(--surface); border: 1px solid var(--rule);
  border-radius: 16px; padding: 22px;
  display: flex; flex-direction: column; gap: 8px;
}
.card h3 { font-size: 1.06rem; font-weight: 670; }
.card p { font-size: .95rem; color: var(--ink-soft); }
.card .dot {
  width: 30px; height: 30px; border-radius: 9px; margin-bottom: 4px;
  display: grid; place-items: center; font-size: .95rem;
  background: var(--accent-soft); color: var(--accent-ink);
}

/* ---- steps: a real sequence ---- */
.steps { list-style: none; margin: 32px 0 0; padding: 0; counter-reset: s;
         display: flex; flex-direction: column; gap: 12px; }
.steps li {
  counter-increment: s;
  display: grid; grid-template-columns: 32px minmax(0,1fr); gap: 16px; align-items: start;
  background: var(--surface); border: 1px solid var(--rule);
  border-radius: 14px; padding: 18px 20px;
}
.steps li::before {
  content: counter(s);
  font-family: var(--mono); font-size: .82rem; font-weight: 600;
  width: 28px; height: 28px; border-radius: 9px;
  background: var(--accent-soft); color: var(--accent-ink);
  display: grid; place-items: center;
}
.steps strong { font-family: var(--display); font-weight: 660; display: block; }
.steps span { font-size: .95rem; color: var(--muted); }

/* ---- faq ---- */
.faq { margin-top: 28px; display: flex; flex-direction: column; gap: 2px; }
.faq details {
  background: var(--surface); border: 1px solid var(--rule); padding: 16px 20px;
}
.faq details:first-of-type { border-radius: 14px 14px 0 0; }
.faq details:last-of-type  { border-radius: 0 0 14px 14px; }
.faq details + details { border-top: none; }
.faq summary {
  cursor: pointer; font-family: var(--display); font-weight: 640;
  font-size: 1rem; list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: " +"; color: var(--muted); float: right; }
.faq details[open] summary::after { content: " –"; }
.faq p { margin-top: 10px; color: var(--ink-soft); font-size: .95rem; }

/* ---- footer ---- */
footer {
  border-top: 1px solid var(--rule);
  padding: 30px 0 46px;
  display: flex; flex-wrap: wrap; gap: 14px 26px;
  align-items: center; justify-content: space-between;
  font-size: .88rem; color: var(--muted);
}
footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
footer a { color: var(--muted); text-decoration: none; }
footer a:hover { color: var(--ink); text-decoration: underline; }

/* ---- narrow pages (support / shared) ---- */
.page { max-width: 660px; padding-top: clamp(34px, 6vw, 56px); }
.page h1 { font-size: clamp(1.8rem, 5vw, 2.5rem); letter-spacing: -.022em; font-weight: 700; }
.page .lede { margin-top: 14px; color: var(--ink-soft); }
.page h2 { font-size: 1.2rem; font-weight: 670; margin-top: 34px; }
.page p + p { margin-top: 12px; }
.page ul.plain { margin: 12px 0 0; padding-left: 20px; color: var(--ink-soft); }
.page ul.plain li { margin-bottom: 7px; }
.panel {
  margin-top: 22px; background: var(--surface); border: 1px solid var(--rule);
  border-radius: 16px; padding: 22px;
}
.code {
  font-family: var(--mono); font-size: 1.05rem; letter-spacing: .04em;
  background: var(--surface-sunk); border-radius: 10px;
  padding: 10px 14px; display: inline-block; margin-top: 6px;
  word-break: break-all;
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}