/* ---- AuraBio app UI ---------------------------------------------------- */
:root {
  --ink: #17151f;
  --ink-soft: #55505f;
  --paper: #faf8f5;
  --card: #ffffff;
  --line: #e9e4dd;
  --line-strong: #d8d1c7;
  --accent: #5b4be0;
  --accent-soft: #efecfd;
  --accent-ink: #3d2fb0;
  --danger: #c8362f;
  --danger-soft: #fbeceb;
  --card-2: #f4f1ec;
  --ok: #1f9d63;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(23,21,31,.05), 0 8px 24px rgba(23,21,31,.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-weight: 600; font-size: 15px;
  padding: 11px 18px; border-radius: 11px; border: 1px solid transparent;
  cursor: pointer; transition: background .12s, border-color .12s, transform .08s;
  text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-ink); text-decoration: none; }
.btn-ghost { background: var(--card); color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { background: var(--card-2); text-decoration: none; }
.btn-danger { background: transparent; color: var(--danger); border-color: transparent; padding: 6px 8px; }
.btn-danger:hover { background: var(--danger-soft); text-decoration: none; }
.btn-sm { padding: 7px 12px; font-size: 14px; border-radius: 9px; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; color: var(--ink); }
.field { margin-bottom: 16px; }
input[type=text], input[type=email], input[type=password], input[type=url], textarea, select {
  width: 100%; font: inherit; font-size: 15px; padding: 11px 13px;
  border: 1px solid var(--line-strong); border-radius: 11px; background: var(--card);
  color: var(--ink); transition: border-color .12s, box-shadow .12s;
}
input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
textarea { resize: vertical; min-height: 72px; }
.hint { font-size: 13px; color: var(--ink-soft); margin-top: 6px; }

.notice { padding: 11px 14px; border-radius: 11px; font-size: 14px; margin-bottom: 16px; }
.notice-error { background: #fbeceb; color: var(--danger); border: 1px solid #f3c9c6; }
.notice-ok { background: #e9f7ef; color: var(--ok); border: 1px solid #c3e9d2; }

/* ---- Auth screens ------------------------------------------------------ */
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-card {
  width: 100%; max-width: 400px; background: var(--card);
  border: 1px solid var(--line); border-radius: 20px; padding: 32px;
  box-shadow: var(--shadow);
}
.auth-card .brand { display: flex; align-items: center; gap: 9px; margin-bottom: 22px; }
.auth-card h1 { font-size: 21px; letter-spacing: -.02em; margin-bottom: 4px; }
.auth-card .lede { color: var(--ink-soft); font-size: 15px; margin-bottom: 24px; }
.auth-alt { text-align: center; margin-top: 20px; font-size: 14px; color: var(--ink-soft); }
.username-row { display: flex; align-items: stretch; }
.username-row .prefix {
  display: flex; align-items: center; padding: 0 12px; font-size: 14px; color: var(--ink-soft);
  background: #f4f1ec; border: 1px solid var(--line-strong); border-right: 0;
  border-radius: 11px 0 0 11px; white-space: nowrap;
}
.username-row input { border-radius: 0 11px 11px 0; }
.avail { font-size: 13px; margin-top: 6px; min-height: 18px; }
.avail.ok { color: var(--ok); }
.avail.no { color: var(--danger); }

.brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 700; letter-spacing: -.02em; }
.brand .dot {
  width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center;
  background: var(--accent); color: #fff; font-size: 15px; font-weight: 800;
}
.brand span.name { font-size: 18px; }