:root {
  --bg: #14161c;
  --bg-panel: #1d212b;
  --bg-panel-2: #232834;
  --border: #2e3543;
  --text: #e3e7ef;
  --text-dim: #9aa3b5;
  --accent: #7aa2ff;
  --accent-strong: #5b86f5;
  --good: #5fcf8f;
  --warn: #e8c45f;
  --bad: #e87f7f;
  --radius: 0.7rem;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
}

body {
  background: radial-gradient(circle at 20% -10%, #1b2030, var(--bg) 60%);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.shell {
  width: min(46rem, 100%);
  height: 100vh;
  padding: clamp(1rem, 3vh, 2rem) clamp(1rem, 4vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow-y: auto;
}

.head h1 {
  margin: 0;
  font-size: clamp(1.6rem, 4vw, 2.3rem);
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, var(--accent), #b69bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tagline {
  margin: 0.4rem 0 0;
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.45;
}

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem;
}

.field {
  display: block;
  margin-bottom: 0.9rem;
}

.field:last-of-type { margin-bottom: 0; }

.label-text {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  font-weight: 600;
}

.label-text em {
  font-weight: 400;
  font-style: normal;
  opacity: 0.8;
}

textarea, input[type="text"] {
  width: 100%;
  background: var(--bg-panel-2);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  padding: 0.6rem 0.7rem;
  resize: vertical;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

textarea { line-height: 1.45; }

textarea:focus, input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(122, 162, 255, 0.18);
}

.controls {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

button {
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 0.5rem;
  padding: 0.55rem 1.1rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s ease, transform 0.08s ease, opacity 0.15s ease;
}

button:active { transform: translateY(1px); }

.primary {
  background: var(--accent-strong);
  color: #fff;
}

.primary:hover { background: var(--accent); }

.primary:disabled {
  opacity: 0.55;
  cursor: progress;
}

.ghost {
  background: transparent;
  color: var(--text-dim);
  border-color: var(--border);
}

.ghost:hover {
  color: var(--text);
  border-color: var(--accent);
}

.status {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.status.error { color: var(--bad); }

.result-panel { animation: rise 0.25s ease; }

@keyframes rise {
  from { opacity: 0; transform: translateY(0.5rem); }
  to { opacity: 1; transform: translateY(0); }
}

.result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.result-head h2 {
  margin: 0;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  font-weight: 700;
}

.confidence {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.confidence.high { color: var(--good); border-color: rgba(95, 207, 143, 0.5); }
.confidence.medium { color: var(--warn); border-color: rgba(232, 196, 95, 0.5); }
.confidence.low { color: var(--bad); border-color: rgba(232, 127, 127, 0.5); }

.corrected {
  margin: 0;
  font-size: clamp(1.15rem, 3vw, 1.5rem);
  line-height: 1.4;
  color: var(--text);
  font-weight: 600;
}

.explanation {
  margin: 0.7rem 0 0;
  color: var(--text-dim);
  font-size: 0.92rem;
  line-height: 1.5;
}

.alt-wrap {
  margin-top: 1.1rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border);
}

.alt-wrap h3 {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  font-weight: 700;
}

.alternatives {
  margin: 0;
  padding-left: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.alternatives li {
  color: var(--text);
  line-height: 1.4;
}

.original-wrap {
  margin-top: 1.1rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.original-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  font-weight: 700;
}

.original {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  color: var(--text-dim);
  font-size: 0.95rem;
  word-break: break-word;
}

.hidden { display: none; }

/* --- Ads (lovingly fake) --- */
.ad {
  position: relative;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background:
    repeating-linear-gradient(
      45deg,
      rgba(122, 162, 255, 0.04),
      rgba(122, 162, 255, 0.04) 10px,
      transparent 10px,
      transparent 20px
    ),
    var(--bg-panel-2);
  padding: 0.85rem 1rem 0.7rem;
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.15s ease, transform 0.08s ease;
}

.ad:hover { border-color: var(--accent); }
.ad:active { transform: translateY(1px); }

.ad::before {
  content: "Sponsoerd";
  position: absolute;
  top: 0;
  right: 0;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #0c0e13;
  background: var(--warn);
  padding: 0.1rem 0.4rem;
  border-bottom-left-radius: 0.4rem;
}

.ad-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.25;
}

.ad-body {
  margin: 0.25rem 0 0;
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.4;
}

.ad-cta {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--good);
  letter-spacing: 0.02em;
}

.ad-banner .ad-body { display: none; }
.ad-banner {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.ad-banner .ad-cta { margin-top: 0; }