:root {
  --ink: #15171C;
  --ink-2: #3E424A;
  --muted: #5B5F68;
  --paper: #F5F3EE;
  --card: #FFFFFF;
  --line: #E4E1D9;
  --line-2: #D9D5CB;
  --accent: #C8102E;
  --accent-dark: #A30D25;
  --navy: #1F3A5F;
  --good: #145A33;
  --good-bg: #DDEFE3;
  --bad: #9A1F17;
  --bad-bg: #FBE1DE;
  --radius: 14px;
  --display: 'Archivo', system-ui, sans-serif;
  --body: 'IBM Plex Sans', system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 15px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-dark); }
a:hover { color: var(--accent); }
button, input, select { font: inherit; }

.shell { min-height: 100vh; display: flex; flex-direction: column; max-width: 560px; margin: 0 auto; background: var(--paper); }

.topbar { position: sticky; top: 0; z-index: 5; background: var(--ink); color: var(--paper); padding: 14px 16px; padding-top: max(14px, env(safe-area-inset-top)); }
.brand { display: flex; align-items: center; gap: 10px; color: inherit; text-decoration: none; }
.brand:hover { color: inherit; }
.brand-mark { width: 34px; height: 34px; border-radius: 9px; background: var(--accent); display: flex; align-items: center; justify-content: center; }
.brand-text { display: flex; flex-direction: column; }
.brand-name { font-family: var(--display); font-weight: 800; font-size: 20px; letter-spacing: -0.3px; line-height: 1.1; }
.brand-sub { font-size: 11px; color: #B9BCC4; }

.content { flex: 1; padding: 18px 16px 110px; display: flex; flex-direction: column; gap: 14px; }

h1 { font-family: var(--display); font-weight: 800; font-size: 24px; margin: 0; letter-spacing: -0.3px; }
h2 { font-size: 16px; font-weight: 600; margin: 0; }
p { margin: 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.stack { display: flex; flex-direction: column; gap: 10px; }
.row { display: flex; align-items: center; gap: 10px; }
.spread { display: flex; align-items: center; justify-content: space-between; gap: 10px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.card-dark { background: var(--ink); color: var(--paper); border: none; }
.card-dark .muted { color: #B9BCC4; }
.card-link { text-decoration: none; color: inherit; }
.card-link:hover { color: inherit; border-color: var(--ink-2); }

.btn { min-height: 48px; border-radius: 24px; border: none; padding: 0 20px; font-weight: 600; font-size: 15px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); color: #fff; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { color: #fff; }
.btn-outline { background: var(--card); color: var(--ink); border: 1px solid var(--ink); }
.btn-outline:hover { color: var(--ink); }
.btn-quiet { background: transparent; color: var(--ink-2); border: 1px solid var(--line-2); }
.btn-danger { background: transparent; color: var(--bad); border: 1px solid var(--bad); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-block { width: 100%; }

.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; font-weight: 600; }
.input { height: 48px; border-radius: 12px; border: 1px solid var(--line-2); padding: 0 14px; font-size: 16px; background: var(--card); color: var(--ink); width: 100%; }
.input:focus { outline: 2px solid var(--navy); outline-offset: 1px; }
.check { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; }
.check input { width: 22px; height: 22px; margin: 0; flex-shrink: 0; accent-color: var(--accent); }

.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { min-height: 40px; padding: 0 14px; border-radius: 20px; border: 1px solid var(--line-2); background: var(--card); color: var(--ink-2); font-weight: 600; font-size: 13px; cursor: pointer; }
.chip[aria-pressed="true"] { background: var(--ink); color: #fff; border-color: var(--ink); }

.avatars { display: flex; gap: 4px; flex-wrap: wrap; }
.avatar { width: 32px; height: 32px; border-radius: 16px; background: var(--navy); color: #fff; font-size: 12px; font-weight: 600; display: inline-flex; align-items: center; justify-content: center; }
.avatar.me { background: var(--accent); }

.badge { font-size: 11px; font-weight: 600; border-radius: 10px; padding: 2px 8px; border: 1px solid var(--navy); color: var(--navy); display: inline-flex; align-items: center; gap: 4px; }
.badge-light { border-color: var(--paper); color: var(--ink); background: var(--paper); }

.member { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-top: 1px solid #EFECE5; }
.member:first-child { border-top: none; }

.linkbox { font-size: 13px; background: var(--paper); border-radius: 10px; padding: 10px 12px; word-break: break-all; color: var(--ink-2); }

.notice { font-size: 13px; border-radius: 10px; padding: 10px 12px; background: #FCEFD6; color: #5C3D00; }
.error { background: var(--bad-bg); color: var(--bad); }

.bottomnav { position: fixed; bottom: 0; left: 0; right: 0; max-width: 560px; margin: 0 auto; background: var(--card); border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); padding: 6px 4px max(12px, env(safe-area-inset-bottom)); }
.bottomnav a { min-height: 52px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; font-size: 12px; font-weight: 500; color: var(--muted); text-decoration: none; }
.bottomnav a::before { content: ''; width: 22px; height: 4px; border-radius: 2px; background: transparent; }
.bottomnav a[aria-current="page"] { color: var(--accent); font-weight: 600; }
.bottomnav a[aria-current="page"]::before { background: var(--accent); }
.bottomnav .soon { font-size: 10px; color: #8A8E96; }

.toast { position: fixed; left: 50%; bottom: 96px; transform: translateX(-50%); background: var(--ink); color: #fff; padding: 12px 18px; border-radius: 12px; font-size: 14px; max-width: calc(100% - 32px); z-index: 20; }

.hero { padding: 8px 0 4px; display: flex; flex-direction: column; gap: 8px; }
.hero h1 { font-size: 28px; }
.list-steps { margin: 0; padding-left: 20px; display: flex; flex-direction: column; gap: 4px; font-size: 14px; }