:root {
  --bg: #f8f4ea;
  --bg-2: #efe4d2;
  --panel: rgba(255, 255, 255, 0.78);
  --text: #1f1a14;
  --muted: #6d5e50;
  --accent: #cc5f2d;
  --accent-2: #f0a04b;
  --line: rgba(109, 94, 80, 0.2);
  --shadow: 0 20px 50px rgba(31, 26, 20, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 10%, rgba(240, 160, 75, 0.45), transparent 38%),
    radial-gradient(circle at 90% 15%, rgba(204, 95, 45, 0.32), transparent 35%),
    linear-gradient(160deg, var(--bg), var(--bg-2));
}

.app {
  width: min(1160px, 92vw);
  margin: 2rem auto 3rem;
  display: grid;
  gap: 1rem;
}

.hero {
  background: linear-gradient(130deg, rgba(255, 255, 255, 0.62), rgba(255, 255, 255, 0.35));
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow);
  border-radius: 22px;
  padding: 1.4rem 1.4rem 1.2rem;
  animation: fadeUp 480ms ease-out;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.hero h1 {
  margin: 0.35rem 0;
  font-size: clamp(1.5rem, 2.8vw, 2.3rem);
}

.subtitle {
  margin: 0;
  color: var(--muted);
}

.panel {
  background: var(--panel);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 1rem;
  animation: fadeUp 520ms ease-out;
}

.controls {
  display: grid;
  gap: 0.9rem;
}

.file-picker {
  border: 2px dashed rgba(204, 95, 45, 0.36);
  border-radius: 14px;
  padding: 0.9rem;
  display: grid;
  gap: 0.5rem;
  color: var(--accent);
  font-weight: 700;
}

.file-picker input {
  width: 100%;
  font: inherit;
  color: var(--text);
}

.control-row {
  display: grid;
  gap: 0.4rem;
}

.control-row label {
  font-weight: 600;
}

.control-row input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
  font: inherit;
  background: rgba(255, 255, 255, 0.78);
}

.column-selector {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.55);
  display: grid;
  gap: 0.6rem;
}

.column-selector-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
}

.column-selector-head span {
  font-weight: 700;
}

.column-actions {
  display: flex;
  gap: 0.4rem;
}

.column-actions button {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
  color: var(--text);
  border-radius: 8px;
  font: inherit;
  font-size: 0.85rem;
  padding: 0.35rem 0.6rem;
  cursor: pointer;
}

.column-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.55rem;
  max-height: 170px;
  overflow: auto;
  padding-right: 0.2rem;
}

.column-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.28rem 0.62rem;
  background: rgba(255, 255, 255, 0.86);
  font-size: 0.84rem;
}

.column-item input {
  margin: 0;
}

.stats {
  color: var(--muted);
  font-size: 0.95rem;
}

.table-panel {
  overflow: hidden;
}

.table-wrap {
  overflow: auto;
  max-height: 68vh;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.85);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

th,
td {
  border-bottom: 1px solid var(--line);
  border-right: 1px solid var(--line);
  padding: 0.45rem 0.55rem;
  text-align: left;
  max-width: 360px;
  overflow-wrap: anywhere;
}

th:last-child,
td:last-child {
  border-right: none;
}

th {
  position: sticky;
  top: 0;
  background: #fce7cc;
  z-index: 1;
  font-weight: 800;
}

tbody tr:nth-child(even) {
  background: rgba(252, 231, 204, 0.38);
}

.info {
  text-align: center;
  color: var(--muted);
}

.info h2 {
  margin: 0;
  color: var(--text);
}

.info p {
  margin-bottom: 0;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 760px) {
  .app {
    width: min(96vw, 1160px);
    margin-top: 1rem;
  }

  .panel,
  .hero {
    border-radius: 14px;
  }

  table {
    font-size: 0.84rem;
  }
}