:root {
  --bg: #0f1f1c;
  --bg2: #102926;
  --panel: #132e2a;
  --ink: #f6f0e7;
  --muted: #b7c5c0;
  --accent: #e7b96b;
  --accent-2: #8ad1c1;
  --danger: #ff7b7b;
  --ring: rgba(231, 185, 107, 0.35);
  --shadow: rgba(0, 0, 0, 0.35);
  --radius: 16px;
  --font: "Space Grotesk", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(1200px 600px at 10% -10%, #1a3c35 0%, transparent 60%),
    radial-gradient(1200px 600px at 90% 10%, #2a483b 0%, transparent 55%),
    linear-gradient(160deg, var(--bg) 0%, var(--bg2) 100%);
  color: var(--ink);
  font-family: var(--font);
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 36px 20px 64px;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-end;
  margin-bottom: 24px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  font-size: 12px;
  margin: 0 0 6px;
}

h1 {
  font-size: 42px;
  margin: 0 0 8px;
}

.sub {
  margin: 0;
  color: var(--muted);
  max-width: 520px;
}

.controls {
  display: flex;
  gap: 16px;
  align-items: center;
  background: var(--panel);
  padding: 16px;
  border-radius: var(--radius);
  box-shadow: 0 10px 30px var(--shadow);
}

.controls label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
}

.controls input[type="range"] {
  width: 180px;
}

.drop {
  position: relative;
  border: 2px dashed rgba(231, 185, 107, 0.5);
  background: rgba(19, 46, 42, 0.6);
  border-radius: var(--radius);
  padding: 50px 24px;
  text-align: center;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.drop.dragover {
  border-color: var(--accent-2);
  box-shadow: 0 0 0 6px rgba(138, 209, 193, 0.15);
  transform: translateY(-2px);
}

#fileInput {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.drop-title {
  font-size: 22px;
  margin-bottom: 6px;
}

.drop-sub {
  color: var(--muted);
}

.actions {
  display: flex;
  gap: 12px;
  margin: 18px 0 24px;
}

button {
  border: none;
  border-radius: 999px;
  padding: 10px 18px;
  font-size: 14px;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, opacity 0.15s;
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.primary {
  background: var(--accent);
  color: #2d2110;
  box-shadow: 0 8px 20px rgba(231, 185, 107, 0.35);
}

.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid rgba(246, 240, 231, 0.2);
}

.list-head,
.list {
  display: grid;
  grid-template-columns: 1.7fr 0.9fr 0.7fr 0.7fr;
  gap: 12px;
}

.list-head {
  color: var(--muted);
  font-size: 13px;
  padding: 8px 0;
}

.list {
  gap: 10px;
}

.item {
  background: rgba(19, 46, 42, 0.8);
  padding: 12px 14px;
  border-radius: 12px;
  display: contents;
}

.cell {
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(19, 46, 42, 0.8);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(138, 209, 193, 0.2);
  color: var(--accent-2);
}

.badge.error {
  background: rgba(255, 123, 123, 0.15);
  color: var(--danger);
}

.features, .faq {
  margin: 40px 0;
  padding: 24px;
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: 0 10px 30px var(--shadow);
}

.features h2, .faq h2 {
  margin-top: 0;
  color: var(--accent);
}

.features ul {
  padding-left: 20px;
  margin: 15px 0;
}

.features li {
  margin-bottom: 10px;
}

.faq details {
  margin-bottom: 12px;
  padding: 12px;
  background: rgba(19, 46, 42, 0.6);
  border-radius: 8px;
}

.faq summary {
  cursor: pointer;
  font-weight: bold;
  color: var(--accent);
  padding: 8px 0;
}

.faq p {
  margin: 10px 0 0 0;
  color: var(--muted);
  padding-left: 10px;
}

.foot {
  margin-top: 36px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    align-items: flex-start;
  }

  .controls {
    width: 100%;
    justify-content: space-between;
  }

  .list-head,
  .list {
    grid-template-columns: 1fr;
  }

  .cell {
    display: flex;
    justify-content: space-between;
  }
}