:root {
  --bg: #f4efe6;
  --ink: #1f2a2e;
  --panel: #fffaf2;
  --line: #d8ccb8;
  --accent: #0d7f7b;
  --accent-2: #f18a3c;
  --warn: #a3311f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Trebuchet MS", sans-serif;
  background: radial-gradient(circle at 5% 10%, #ffe6cf 0, transparent 40%),
    radial-gradient(circle at 100% 100%, #cfeeea 0, transparent 45%), var(--bg);
  color: var(--ink);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 14px 40px;
}

.hero {
  margin-bottom: 14px;
}

.hero h1 {
  margin: 0 0 6px;
  font-size: 1.9rem;
  letter-spacing: 0.3px;
}

.hero p {
  margin: 0;
  color: #314249;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  margin-top: 12px;
  box-shadow: 0 7px 20px rgba(31, 42, 46, 0.06);
}

.panel h2 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.grid {
  display: grid;
  gap: 12px;
}

.grid.two {
  grid-template-columns: 1fr;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.top-gap {
  margin-top: 10px;
}

button {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #ffffff;
  color: var(--ink);
  padding: 9px 12px;
  cursor: pointer;
  font-weight: 700;
}

button:hover:enabled {
  border-color: var(--accent);
  transform: translateY(-1px);
}

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

button.warn {
  border-color: #e7b2a9;
  color: var(--warn);
}

.status {
  margin: 10px 0 0;
  font-weight: 700;
}

.hint {
  margin: 8px 0 0;
  font-size: 0.92rem;
  color: #4d5e64;
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.card {
  background: #f8f1e7;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px;
}

.card h3 {
  margin: 0;
  font-size: 0.86rem;
  color: #4c616b;
}

.card p {
  margin: 4px 0 0;
  font-size: 1.15rem;
  font-weight: 700;
}

.phase {
  margin: 0;
  font-size: 1rem;
  font-weight: 800;
  color: var(--accent);
}

.instruction {
  margin: 8px 0;
  font-weight: 700;
  line-height: 1.35;
}

.progress-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

progress {
  width: 100%;
  height: 12px;
}

.checklist {
  margin: 8px 0 0;
  padding-left: 20px;
  line-height: 1.5;
}

.list {
  margin: 10px 0 0;
  padding-left: 20px;
  line-height: 1.45;
}

.summary {
  margin: 10px 0 0;
  font-weight: 700;
}

label {
  display: grid;
  gap: 6px;
  font-weight: 700;
}

input[type="file"] {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 8px;
}

@media (min-width: 920px) {
  .grid.two {
    grid-template-columns: 1fr 1fr;
  }

  .cards {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}