:root {
  --teal: #0E7C86;
  --teal-dark: #0a5a62;
  --navy: #10243E;
  --yellow: #F2B233;
  --cream: #F7F3E8;
  --ink: #1b2a3a;
  --muted: #6b7a8c;
  --ok: #2e9e5b;
  --warn: #d99a1c;
  --bad: #d64545;
  --radius: 14px;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--cream);
  color: var(--ink);
  line-height: 1.5;
}
a { color: var(--teal); }
.btn {
  display: inline-block; border: 0; cursor: pointer; text-decoration: none;
  background: var(--teal); color: #fff; padding: .7rem 1.3rem; border-radius: 999px;
  font-size: 1rem; font-weight: 600; font-family: inherit;
}
.btn:hover { background: var(--teal-dark); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn-yellow { background: var(--yellow); color: var(--navy); }
.btn-yellow:hover { background: #e0a11f; }
.btn-ghost { background: transparent; color: var(--teal); border: 2px solid var(--teal); }
.btn-ghost:hover { background: rgba(14,124,134,.1); }
.card {
  background: #fff; border-radius: var(--radius); padding: 1.5rem;
  box-shadow: 0 6px 24px rgba(16,36,62,.1);
}
.flash { padding: .7rem 1rem; border-radius: 10px; margin-bottom: 1rem; }
.flash-error { background: #fde8e8; color: #8a1f1f; }
.flash-success { background: #e3f6ea; color: #1d6a3b; }

/* landing */
.landing {
  min-height: 100%; display: flex; align-items: center; justify-content: center; padding: 1.5rem;
  background: radial-gradient(circle at 20% 10%, #1b4f6b 0, var(--navy) 55%, #08121f 100%);
}
.landing .card { max-width: 440px; text-align: center; }
.landing h1 { margin: .2rem 0; color: var(--navy); font-size: 1.9rem; }
.landing .tag { color: var(--teal); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; font-size: .8rem; }
.landing p { color: var(--muted); }
.landing .stack { display: grid; gap: .7rem; margin-top: 1.2rem; }
.dev-box { margin-top: 1.4rem; padding-top: 1rem; border-top: 1px dashed #cfd6de; text-align: left; font-size: .9rem; }
.dev-box input { width: 100%; padding: .5rem; border: 1px solid #cfd6de; border-radius: 8px; margin: .3rem 0 .6rem; }

/* onboarding */
.page-narrow { max-width: 760px; margin: 0 auto; padding: 2rem 1rem; }
.steps { display: flex; gap: .5rem; margin-bottom: 1.2rem; }
.steps span { flex: 1; height: 6px; border-radius: 3px; background: #d9dfe6; }
.steps span.on { background: var(--teal); }
.field { display: grid; gap: .3rem; margin: 1rem 0; }
.field label { font-weight: 600; }
.field input[type=text] { padding: .7rem .9rem; border: 2px solid #d3dbe4; border-radius: 10px; font-size: 1.05rem; font-family: inherit; }
.field input[type=text]:focus { outline: none; border-color: var(--teal); }
.field .help { color: var(--muted); font-size: .85rem; }
.field .err { color: var(--bad); font-size: .9rem; }

.char-wrap { display: grid; grid-template-columns: 220px 1fr; gap: 1.5rem; align-items: start; }
@media (max-width: 640px) { .char-wrap { grid-template-columns: 1fr; } }
.char-preview { background: linear-gradient(#cfe9d6, #a9d6b4); border-radius: var(--radius); padding: .6rem; text-align: center; }
.char-preview canvas { width: 100%; max-width: 200px; image-rendering: auto; }
.char-preview .dirs { display: flex; gap: .3rem; justify-content: center; flex-wrap: wrap; margin-top: .3rem; }
.chip { border: 2px solid transparent; background: #fff; border-radius: 999px; padding: .3rem .8rem; cursor: pointer; font: inherit; font-size: .85rem; }
.chip.on { border-color: var(--teal); color: var(--teal-dark); font-weight: 700; }
.opt-group { margin-bottom: 1rem; }
.opt-group h3 { margin: 0 0 .4rem; font-size: .95rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.opt-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: .6rem; }
.opt { background: #fff; border: 3px solid #e1e7ee; border-radius: 12px; padding: .5rem; cursor: pointer; text-align: center; font: inherit; }
.opt:hover { border-color: #9fcfd4; }
.opt.on { border-color: var(--teal); background: #eaf6f7; }
.opt canvas { width: 64px; height: 84px; display: block; margin: 0 auto .2rem; }
.opt small { color: var(--muted); }

/* topbar */
.topbar {
  position: fixed; inset: 0 0 auto 0; height: 48px; z-index: 20; display: flex; align-items: center; gap: .6rem;
  padding: 0 .8rem; background: rgba(16,36,62,.92); color: #fff; font-size: .9rem;
}
.topbar .brand { font-weight: 700; margin-right: auto; }
.topbar .who { opacity: .85; }
.topbar a, .topbar button { color: #fff; }
.topbar .tb-btn {
  background: rgba(255,255,255,.12); border: 0; color: #fff; padding: .35rem .8rem; border-radius: 999px;
  cursor: pointer; text-decoration: none; font: inherit; font-size: .85rem;
}
.topbar .tb-btn:hover { background: rgba(255,255,255,.25); }
.topbar form { display: inline; margin: 0; }