:root {
  color-scheme: light;
  --bg: #f5f1e8;
  --card: rgba(255, 253, 247, 0.92);
  --line: rgba(74, 58, 35, 0.13);
  --text: #262014;
  --muted: #756b5d;
  --accent: #227c6b;
  --accent-strong: #15584d;
  --accent-soft: #dff2ec;
  --danger: #b33d2e;
  --warn: #a86912;
  --ok: #23754c;
  --shadow: 0 24px 70px rgba(57, 44, 25, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Microsoft YaHei UI", "PingFang SC", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 15% 8%, rgba(34, 124, 107, 0.18), transparent 32%),
    radial-gradient(circle at 82% 20%, rgba(236, 175, 89, 0.25), transparent 28%),
    linear-gradient(150deg, #f4efe3 0%, #fbfaf5 48%, #ece3d2 100%);
}

button,
input,
textarea {
  font: inherit;
}

.shell {
  width: min(1040px, calc(100% - 28px));
  margin: 0 auto;
  padding: 32px 0 56px;
}

.card {
  margin-bottom: 16px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: var(--card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

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

.section-title,
.token-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.section-title.compact {
  margin-bottom: 14px;
}

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

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-strong);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 8px;
  font-size: clamp(30px, 6vw, 52px);
  line-height: 1;
}

h2 {
  margin-bottom: 12px;
  font-size: 21px;
}

.muted,
.message,
time {
  color: var(--muted);
}

.pill {
  flex: 0 0 auto;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--warn);
  background: #fff3d9;
  font-size: 13px;
  font-weight: 800;
}

.pill[data-state="ok"] {
  color: var(--ok);
  background: #def4e8;
}

.pill[data-state="error"] {
  color: var(--danger);
  background: #ffe5df;
}

input,
textarea,
.readonly-input {
  width: 100%;
  border: 1px solid rgba(74, 58, 35, 0.17);
  border-radius: 18px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.72);
}

input,
.readonly-input {
  height: 48px;
  padding: 0 14px;
}

textarea {
  min-height: 116px;
  padding: 14px;
  resize: vertical;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  cursor: pointer;
  font-weight: 800;
  transition:
    transform 150ms ease,
    opacity 150ms ease;
}

button:hover {
  transform: translateY(-1px);
}

button:active {
  transform: translateY(0);
}

button.secondary {
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.preview {
  min-height: 118px;
  margin: 0;
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.72);
  font-size: 22px;
  line-height: 1.55;
}

.count {
  display: inline-flex;
  min-width: 30px;
  justify-content: center;
  padding: 3px 9px;
  border-radius: 999px;
  color: var(--accent-strong);
  background: var(--accent-soft);
  font-size: 16px;
}

.question-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.question-item {
  padding: 15px 16px;
  border: 1px solid rgba(74, 58, 35, 0.1);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.68);
}

.question-item p {
  margin-bottom: 7px;
}

.question-item.empty {
  color: var(--muted);
}

.message {
  min-height: 20px;
  margin: 0;
  font-size: 14px;
}

.message[data-kind="ok"] {
  color: var(--ok);
}

.message[data-kind="warn"] {
  color: var(--warn);
}

.message[data-kind="error"] {
  color: var(--danger);
}

code {
  padding: 2px 6px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.06);
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 20px, 1040px);
    padding-top: 20px;
  }

  .hero,
  .section-title,
  .token-row {
    align-items: stretch;
    flex-direction: column;
  }

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

  .preview {
    font-size: 18px;
  }
}