:root {
  --bg: #0f1115;
  --card: #171a21;
  --border: #262b36;
  --text: #e8eaf0;
  --muted: #9aa1b2;
  --accent: #6c8cff;
  --accent-dark: #4a63cc;
  --danger: #ff6c6c;
  --success: #4ade80;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(circle at top, #1a1e28, var(--bg));
  color: var(--text);
  min-height: 100vh;
}

.wrap {
  max-width: 480px;
  margin: 0 auto;
  padding: 48px 20px;
}

.wrap.wide { max-width: 720px; }

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 720px;
  margin: 0 auto;
  padding: 20px;
}

.nav a { color: var(--text); text-decoration: none; font-weight: 600; }
.brand { font-size: 1.1rem; letter-spacing: -0.02em; }
.brand span { color: var(--accent); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 20px;
}

h1 { font-size: 1.6rem; margin: 0 0 6px; letter-spacing: -0.02em; }
h2 { font-size: 1.2rem; margin: 0 0 14px; }
p.sub { color: var(--muted); margin: 0 0 24px; line-height: 1.5; }

label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin: 16px 0 6px;
}

input[type=text], input[type=email], input[type=password], textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #10131a;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
}

textarea { resize: vertical; min-height: 100px; }

input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}

button, .btn {
  display: inline-block;
  margin-top: 22px;
  width: 100%;
  padding: 13px 18px;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: background 0.15s ease;
}

button:hover, .btn:hover { background: var(--accent-dark); }

.btn.secondary {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn.secondary:hover { border-color: var(--accent); background: transparent; }

.error {
  background: rgba(255,108,108,0.1);
  border: 1px solid rgba(255,108,108,0.35);
  color: var(--danger);
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.success-banner {
  background: rgba(74,222,128,0.1);
  border: 1px solid rgba(74,222,128,0.35);
  color: var(--success);
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.foot-link { text-align: center; margin-top: 18px; color: var(--muted); font-size: 0.9rem; }
.foot-link a { color: var(--accent); text-decoration: none; }

.qr-box {
  background: #fff;
  padding: 18px;
  border-radius: var(--radius);
  display: inline-block;
}
.qr-box img { display: block; width: 220px; height: 220px; }

.center { text-align: center; }

.portal-link {
  word-break: break-all;
  background: #10131a;
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 10px;
}

.msg {
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.msg:last-child { border-bottom: none; }
.msg .from { font-weight: 600; font-size: 0.9rem; }
.msg .time { color: var(--muted); font-size: 0.78rem; margin-left: 8px; }
.msg .body { margin-top: 4px; color: var(--text); line-height: 1.5; font-size: 0.93rem; }

.empty { color: var(--muted); text-align: center; padding: 30px 0; font-size: 0.9rem; }

.badge {
  display: inline-block;
  font-size: 0.75rem;
  padding: 3px 9px;
  border-radius: 20px;
  background: rgba(108,140,255,0.15);
  color: var(--accent);
  margin-bottom: 10px;
}

.privacy-note {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 18px;
  line-height: 1.5;
}

.actions-row { display: flex; gap: 10px; }
.actions-row form, .actions-row a, .actions-row button { flex: 1; margin-top: 0; }

.thread {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  margin-bottom: 16px;
  background: #10131a;
}
.thread-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
}
.thread-head .from { font-weight: 600; }
.thread-head .time { color: var(--muted); font-size: 0.78rem; }

.thread-messages { display: flex; flex-direction: column; gap: 10px; }

.bubble {
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 8px;
  max-width: 100%;
}
.bubble-sender { background: #1b1f2a; border: 1px solid var(--border); }
.bubble-owner { background: rgba(108,140,255,0.12); border: 1px solid rgba(108,140,255,0.3); }
.bubble-label { font-size: 0.75rem; font-weight: 600; color: var(--muted); margin-bottom: 3px; }
.bubble-text { font-size: 0.92rem; line-height: 1.5; white-space: pre-wrap; }
.bubble-time { font-size: 0.72rem; color: var(--muted); margin-top: 4px; }

.reply-form { margin-top: 14px; }
.reply-form textarea { min-height: 70px; }
.reply-form button { margin-top: 10px; width: auto; padding: 10px 18px; font-size: 0.88rem; }

.tag-block {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 14px;
  background: #10131a;
}
.tag-block-main { display: flex; gap: 16px; align-items: flex-start; }
.qr-box.small { padding: 8px; flex-shrink: 0; }
.qr-box.small img { width: 84px; height: 84px; }
.tag-block-info { flex: 1; min-width: 0; }

.tag-edit-form, .tag-add-form {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.tag-add-form { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--border); }

select, .tag-edit-form input[type=text], .tag-add-form input[type=text] {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #10131a;
  color: var(--text);
  font-size: 0.85rem;
  font-family: inherit;
}
.tag-edit-form input[type=text], .tag-add-form input[type=text] { flex: 1; min-width: 160px; }

.portal-link.small { font-size: 0.75rem; padding: 7px 10px; margin-top: 10px; }

.tag-pill {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
  background: rgba(108,140,255,0.15);
  color: var(--accent);
  margin-left: 8px;
  vertical-align: middle;
}

.btn.danger { color: var(--danger); border-color: rgba(255,108,108,0.35); }
.btn.danger:hover { border-color: var(--danger); }