:root {
  --ink: #10231c;
  --muted: #4d645a;
  --bg0: #eef4f0;
  --bg1: #d7e6dc;
  --panel: rgba(255, 255, 255, 0.82);
  --line: rgba(16, 35, 28, 0.12);
  --accent: #1f6b4a;
  --accent-ink: #f4fff8;
  --danger: #8b2e2e;
  --ok: #1f6b4a;
  --shadow: 0 18px 50px rgba(16, 35, 28, 0.12);
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --font-body: "Avenir Next", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  color: var(--ink);
  font-family: var(--font-body);
  background:
    radial-gradient(900px 480px at 10% -10%, #cfe8d8 0%, transparent 55%),
    radial-gradient(700px 420px at 100% 0%, #b7d4c8 0%, transparent 50%),
    linear-gradient(160deg, var(--bg0), var(--bg1));
}

.shell {
  width: min(640px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 3.5rem 0 4rem;
}

.brand .eyebrow {
  margin: 0 0 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  color: var(--muted);
}

.brand h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.6rem);
  font-weight: 600;
  line-height: 1.1;
}

.lede {
  margin: 0.85rem 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.panel {
  margin-top: 1.75rem;
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  display: grid;
  gap: 1rem;
}

.field {
  display: grid;
  gap: 0.4rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.field input {
  appearance: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.85rem 0.95rem;
  font: inherit;
  font-weight: 500;
  background: #fff;
}

.drop {
  display: grid;
  place-items: center;
  gap: 0.35rem;
  min-height: 150px;
  padding: 1.25rem;
  border: 1.5px dashed rgba(31, 107, 74, 0.45);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  text-align: center;
  transition: border-color 140ms ease, background 140ms ease, transform 140ms ease;
}

.drop:hover,
.drop.dragover {
  border-color: var(--accent);
  background: rgba(31, 107, 74, 0.06);
  transform: translateY(-1px);
}

.drop strong {
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.drop span {
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 28ch;
}

.queue {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.queue:empty {
  display: none;
}

.queue li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.35rem 0.75rem;
  padding: 0.7rem 0.85rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--line);
  font-size: 0.92rem;
}

.queue .meta {
  color: var(--muted);
  font-size: 0.82rem;
  grid-column: 1 / -1;
}

.queue .state {
  font-weight: 600;
  font-size: 0.82rem;
}

.queue .state.ok {
  color: var(--ok);
}

.queue .state.err {
  color: var(--danger);
}

button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 0.9rem 1.2rem;
  background: var(--accent);
  color: var(--accent-ink);
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: transform 140ms ease, opacity 140ms ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
}

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

.status {
  margin: 0;
  min-height: 1.25rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.status.err {
  color: var(--danger);
}

.status.ok {
  color: var(--ok);
}