:root {
  --bg: #eef4ff;
  --card: #ffffff;
  --ink: #152033;
  --muted: #607086;
  --blue: #0066ff;
  --blue-dark: #004fc4;
  --yellow: #ffc220;
  --border: #d7e2f2;
  --soft: #f6f9ff;
  --good: #11804b;
  --warn: #a15c00;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(255, 194, 32, .35), transparent 30rem),
    radial-gradient(circle at top right, rgba(0, 102, 255, .25), transparent 34rem),
    var(--bg);
  color: var(--ink);
}

.shell {
  width: min(980px, calc(100% - 32px));
  margin: 32px auto;
  display: grid;
  gap: 18px;
}

.card {
  background: rgba(255, 255, 255, .92);
  border: 1px solid rgba(215, 226, 242, .9);
  border-radius: 24px;
  box-shadow: 0 22px 60px rgba(40, 72, 120, .13);
  backdrop-filter: blur(10px);
}

.hero {
  padding: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--blue);
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .78rem;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: .95;
  letter-spacing: -0.05em;
}

h2 {
  margin: 0 0 14px;
  font-size: 1.1rem;
}

.lead {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.status-pill {
  flex: 0 0 auto;
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 800;
  font-size: .86rem;
  background: var(--soft);
  border: 1px solid var(--border);
}
.status-pill.good { color: var(--good); }
.status-pill.warn { color: var(--warn); }

.converter-card { padding: 26px; }

form { display: grid; gap: 18px; }

.upload-box {
  min-height: 230px;
  border: 2px dashed #adc5e8;
  border-radius: 22px;
  background: linear-gradient(180deg, #fbfdff, #f3f7ff);
  display: grid;
  place-items: center;
  align-content: center;
  gap: 10px;
  padding: 28px;
  cursor: pointer;
  text-align: center;
  transition: .18s ease;
}

.upload-box:hover,
.upload-box.dragover {
  border-color: var(--blue);
  transform: translateY(-1px);
  box-shadow: inset 0 0 0 4px rgba(0, 102, 255, .06);
}

.upload-box input { display: none; }
.upload-icon {
  width: 70px;
  height: 70px;
  border-radius: 24px;
  display: grid;
  place-items: center;
  background: var(--blue);
  color: white;
  font-size: 2rem;
  font-weight: 900;
  box-shadow: 0 14px 30px rgba(0, 102, 255, .25);
}

.upload-box strong { font-size: 1.3rem; }
.upload-box span:last-child { color: var(--muted); }

.grid.two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.field {
  display: grid;
  gap: 8px;
  font-weight: 800;
}

select {
  width: 100%;
  appearance: none;
  border: 1px solid var(--border);
  background: white;
  border-radius: 16px;
  padding: 15px 16px;
  font: inherit;
  color: var(--ink);
  box-shadow: 0 6px 18px rgba(40, 72, 120, .08);
}

.notice {
  border-radius: 18px;
  border: 1px solid #d9e4f5;
  background: #f8fbff;
  color: #3c4e65;
  padding: 14px 16px;
  line-height: 1.45;
}

.warn-notice {
  border-color: #ffe0a3;
  background: #fff8e8;
}

.primary {
  border: 0;
  border-radius: 18px;
  padding: 17px 22px;
  font: inherit;
  font-weight: 900;
  color: white;
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  cursor: pointer;
  box-shadow: 0 18px 40px rgba(0, 102, 255, .25);
}

.primary:hover { transform: translateY(-1px); }
.primary:disabled { opacity: .65; cursor: wait; transform: none; }

.info-card { padding: 24px; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chips span {
  padding: 9px 12px;
  background: #eef5ff;
  border: 1px solid #d4e5ff;
  color: #194e93;
  border-radius: 999px;
  font-weight: 800;
  font-size: .88rem;
}
.small {
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 0;
}

@media (max-width: 720px) {
  .hero { align-items: flex-start; flex-direction: column; }
  .grid.two { grid-template-columns: 1fr; }
  .converter-card { padding: 18px; }
  .upload-box { min-height: 190px; }
}

.field.is-disabled {
  opacity: .48;
}

.field.is-disabled select {
  cursor: not-allowed;
}

.batch-status {
  min-height: 24px;
  color: var(--muted);
  font-weight: 700;
  line-height: 1.4;
}

.batch-status.success {
  color: var(--good);
}

.batch-status.error {
  color: #a12424;
}

.options-card {
  display: grid;
  gap: 10px;
  border: 1px solid #d9e4f5;
  background: #f8fbff;
  border-radius: 18px;
  padding: 16px;
}

.inline-input {
  display: flex;
  align-items: center;
  gap: 10px;
}

input[type="number"] {
  width: 100%;
  border: 1px solid var(--border);
  background: white;
  border-radius: 16px;
  padding: 15px 16px;
  font: inherit;
  color: var(--ink);
  box-shadow: 0 6px 18px rgba(40, 72, 120, .08);
}

.inline-input strong {
  color: var(--muted);
  min-width: 32px;
}

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(115px, 1fr));
  gap: 10px;
}

.checkbox-grid label {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: #fff;
  padding: 12px;
  border-radius: 14px;
  font-weight: 800;
  cursor: pointer;
}

.checkbox-grid input {
  width: 18px;
  height: 18px;
  accent-color: var(--blue);
}

.hint {
  margin: 0;
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.45;
}


.toggle-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  font-weight: 800;
}

.toggle-row input {
  width: 20px;
  height: 20px;
  margin-top: 3px;
  accent-color: var(--blue);
  flex: 0 0 auto;
}

.toggle-row span {
  display: grid;
  gap: 3px;
}

.toggle-row small {
  font-weight: 700;
  color: var(--muted);
  line-height: 1.35;
}