:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --border: #e2e5ea;
  --text: #1a1d21;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --spam: #b91c1c;
  --spam-bg: #fee2e2;
  --ham: #15803d;
  --ham-bg: #dcfce7;
  --danger: #b91c1c;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --card: #171a20;
    --border: #2a2f38;
    --text: #e8eaed;
    --muted: #9aa3af;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --spam: #fca5a5;
    --spam-bg: #451a1a;
    --ham: #86efac;
    --ham-bg: #14331f;
    --danger: #fca5a5;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 2rem 1rem 4rem;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.wrap { max-width: 680px; margin: 0 auto; }

/* ---------- Header ---------- */
.head { margin-bottom: 1.5rem; }
.head h1 { margin: 0 0 .35rem; font-size: 1.6rem; letter-spacing: -.02em; }
.head .sub { margin: 0; color: var(--muted); }

.badge {
  display: inline-block;
  vertical-align: middle;
  margin-left: .4rem;
  padding: .15rem .5rem;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
}

/* ---------- Cards ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem;
  margin-bottom: 1rem;
}

.lbl {
  display: block;
  margin-bottom: .4rem;
  font-size: .82rem;
  font-weight: 600;
  color: var(--muted);
}
.opt { font-weight: 400; text-transform: none; }

textarea, select {
  width: 100%;
  padding: .6rem .7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
  resize: vertical;
}

textarea:focus, select:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}

.row { display: flex; align-items: center; gap: .75rem; }
.row.meta { justify-content: flex-end; margin-top: .3rem; }
.row.controls { margin-top: .9rem; align-items: flex-end; }
.row.controls.end { justify-content: flex-end; }
.field { flex: 1; }
.field select { max-width: 220px; }
.counter { font-size: .78rem; color: var(--muted); }
.counter.over { color: var(--danger); font-weight: 600; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  padding: .55rem 1.1rem;
  border: 1px solid transparent;
  border-radius: 8px;
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s, border-color .15s, opacity .15s;
}
.btn.small { padding: .3rem .7rem; font-size: .82rem; }
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn.ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn.ghost:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.btn:disabled { opacity: .55; cursor: not-allowed; }

/* ---------- Spinner ---------- */
.spinner {
  width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,.45);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Result ---------- */
.result-head { justify-content: space-between; }
.result-head h2 { margin: 0; font-size: 1rem; }
.empty { color: var(--muted); margin: .5rem 0 0; font-size: .9rem; }

.result-body { margin: .9rem 0 0; }
.field-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: .6rem;
  padding: .55rem 0;
  border-top: 1px solid var(--border);
}
.field-row:first-child { border-top: 0; }
.field-row dt { color: var(--muted); font-size: .85rem; }
.field-row dd { margin: 0; word-break: break-word; }
.msg { white-space: pre-wrap; }

.pill {
  display: inline-block;
  padding: .2rem .65rem;
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.pill.spam { background: var(--spam-bg); color: var(--spam); }
.pill.ham  { background: var(--ham-bg);  color: var(--ham); }

/* ---------- Feedback ---------- */
.feedback {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  padding-top: .9rem;
  border-top: 1px solid var(--border);
}
.feedback .lbl { margin: 0; }
.feedback-btns { display: flex; gap: .5rem; }
.thanks { color: var(--muted); font-size: .87rem; }

/* ---------- Toasts ---------- */
.toasts {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  z-index: 50;
}
.toast {
  padding: .65rem .9rem;
  border-radius: 8px;
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  box-shadow: 0 4px 14px rgba(0,0,0,.12);
  font-size: .88rem;
  max-width: 320px;
  animation: slide .2s ease-out;
}
.toast.error { border-left-color: var(--danger); }
.toast.success { border-left-color: var(--ham); }
@keyframes slide { from { opacity: 0; transform: translateX(12px); } }

@media (max-width: 520px) {
  .field-row { grid-template-columns: 1fr; gap: .2rem; }
  .row.controls { flex-direction: column; align-items: stretch; }
  .field select { max-width: none; }
}