:root {
  color-scheme: light;
  --ink: #17231e;
  --muted: #68756e;
  --line: #dfe6e1;
  --paper: #ffffff;
  --canvas: #f3f5f1;
  --accent: #0d7252;
  --accent-dark: #07563e;
  --accent-soft: #e5f3ed;
  --warning: #8a5a12;
  --warning-soft: #fff6df;
  font-family: Inter, "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(56, 143, 110, 0.12), transparent 28rem),
    linear-gradient(180deg, #f8faf7 0%, var(--canvas) 100%);
}

button,
textarea {
  font: inherit;
}

.shell {
  width: min(900px, calc(100% - 32px));
  margin: 0 auto;
  padding: 64px 0 80px;
}

.hero {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  margin-bottom: 28px;
}

.brand-mark {
  display: grid;
  flex: 0 0 62px;
  width: 62px;
  height: 62px;
  place-items: center;
  border-radius: 18px;
  color: white;
  background: var(--accent);
  box-shadow: 0 12px 28px rgba(13, 114, 82, 0.22);
  font-weight: 800;
  letter-spacing: 0.05em;
}

.eyebrow {
  margin: 1px 0 5px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.love-note {
  display: inline-flex;
  align-items: center;
  margin: 0 0 9px;
  padding: 6px 11px;
  border: 1px solid rgba(226, 101, 132, 0.24);
  border-radius: 999px;
  color: #b53f63;
  background: linear-gradient(135deg, #fff0f4, #fff8f1);
  box-shadow: 0 7px 18px rgba(181, 63, 99, 0.09);
  font-size: 14px;
  font-weight: 750;
  letter-spacing: 0.04em;
}

.love-note::before {
  margin-right: 6px;
  content: "♥";
  color: #df5278;
  font-size: 13px;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: clamp(28px, 5vw, 42px);
  line-height: 1.16;
  letter-spacing: -0.035em;
}

.intro {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.composer,
.result {
  border: 1px solid rgba(210, 220, 214, 0.9);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 50px rgba(44, 67, 55, 0.08);
  backdrop-filter: blur(14px);
}

.composer {
  padding: 22px;
}

.composer label {
  display: block;
  margin-bottom: 11px;
  font-weight: 750;
}

textarea {
  width: 100%;
  min-height: 132px;
  resize: vertical;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  outline: none;
  color: var(--ink);
  background: #fbfcfb;
  line-height: 1.65;
  transition: border-color 0.2s, box-shadow 0.2s;
}

textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(13, 114, 82, 0.1);
}

.composer-footer,
.submit-area,
.result-heading,
.code-line,
.alternative-heading {
  display: flex;
  align-items: center;
}

.composer-footer {
  justify-content: space-between;
  gap: 16px;
  margin-top: 14px;
}

.submit-area {
  gap: 14px;
}

#counter {
  color: var(--muted);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

button {
  border: 0;
  cursor: pointer;
}

.example {
  padding: 8px 3px;
  color: var(--accent);
  background: transparent;
  font-weight: 650;
}

.primary {
  display: inline-flex;
  gap: 24px;
  align-items: center;
  padding: 12px 17px;
  border-radius: 12px;
  color: white;
  background: var(--accent);
  font-weight: 750;
  transition: transform 0.2s, background 0.2s;
}

.primary:hover:not(:disabled) {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.primary:disabled {
  cursor: wait;
  opacity: 0.66;
}

.message {
  min-height: 24px;
  margin: 13px 4px;
  color: var(--muted);
  font-size: 14px;
}

.result {
  padding: 26px;
}

.result-heading {
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
}

.code-line {
  gap: 10px;
}

#final-code {
  color: var(--accent);
  font-size: clamp(28px, 5vw, 40px);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.025em;
}

.confidence,
.mode {
  border-radius: 999px;
  font-size: 12px;
  font-weight: 750;
}

.confidence {
  padding: 4px 9px;
  color: var(--accent);
  background: var(--accent-soft);
}

.mode {
  flex: 0 0 auto;
  padding: 6px 10px;
  color: var(--muted);
  background: #f0f3f1;
}

.result h2 {
  margin: 5px 0 0;
  font-size: clamp(20px, 3vw, 26px);
}

.risk-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 24px 0;
}

.risk-grid article {
  padding: 17px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fbfcfb;
}

.risk-grid span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.risk-grid strong {
  display: block;
  margin-top: 4px;
  color: var(--accent);
  font-size: 24px;
}

.reason-block,
.alternatives {
  padding-top: 2px;
}

.reason-block h3,
.alternatives h3 {
  margin: 0 0 8px;
  font-size: 15px;
}

.reason-block p,
.doubt p,
.alternative-card p {
  margin: 0;
  color: #435048;
  line-height: 1.7;
}

.doubt {
  margin-top: 18px;
  padding: 14px 16px;
  border: 1px solid #f1d89e;
  border-radius: 12px;
  color: var(--warning);
  background: var(--warning-soft);
}

.doubt p {
  margin-top: 4px;
  color: var(--warning);
}

.alternatives {
  margin-top: 24px;
}

.alternative-card {
  padding: 15px 0;
  border-top: 1px solid var(--line);
}

.alternative-heading {
  gap: 10px;
  margin-bottom: 5px;
}

.alternative-heading strong {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.alternative-heading span {
  font-weight: 650;
}

.alternative-risks {
  color: var(--muted) !important;
  font-size: 13px;
}

.source-note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.hidden {
  display: none !important;
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 22px, 900px);
    padding-top: 30px;
  }

  .hero {
    gap: 13px;
  }

  .brand-mark {
    flex-basis: 48px;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    font-size: 13px;
  }

  .composer,
  .result {
    padding: 18px;
    border-radius: 18px;
  }

  .composer-footer {
    align-items: flex-end;
  }

  .submit-area {
    flex-direction: column;
    gap: 7px;
    align-items: flex-end;
  }

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

  .risk-grid article {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 13px 15px;
  }

  .risk-grid strong {
    margin: 0;
  }

  .result-heading {
    flex-direction: column-reverse;
    gap: 12px;
  }
}