@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;600&family=IBM+Plex+Sans:wght@400;600;700&display=swap");

:root {
  --paper: #f7f2e8;
  --ink: #1f2a2f;
  --muted: #5b6b73;
  --sea: #0f766e;
  --sea-soft: #d9f2ef;
  --sun: #f59e0b;
  --sun-soft: #fff5de;
  --card: #ffffff;
  --line: #d7d7cf;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 14%, rgba(15, 118, 110, 0.14), transparent 45%),
    radial-gradient(circle at 86% 10%, rgba(245, 158, 11, 0.14), transparent 40%),
    linear-gradient(170deg, #fbf8f1 0%, var(--paper) 60%, #f2ecdf 100%);
  color: var(--ink);
  font-family: "IBM Plex Sans", sans-serif;
  line-height: 1.5;
}

a {
  color: var(--sea);
}

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 32px 18px 56px;
}

.hero {
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.92), rgba(237, 245, 244, 0.92));
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 26px 24px;
  box-shadow: 0 14px 28px rgba(27, 33, 33, 0.07);
}

.hero h1 {
  margin: 0 0 8px;
  font-size: clamp(1.8rem, 3.4vw, 2.4rem);
}

.hero p {
  margin: 0;
  max-width: 78ch;
  color: var(--muted);
}

.chiprow {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 999px;
  padding: 5px 10px;
  border: 1px solid transparent;
}

.chip.sea {
  color: #0a4f49;
  background: var(--sea-soft);
  border-color: #bde3de;
}

.chip.sun {
  color: #7a4e00;
  background: var(--sun-soft);
  border-color: #f2dea9;
}

section {
  margin-top: 20px;
}

h2 {
  font-size: 1.34rem;
  margin: 0 0 10px;
}

.intro {
  margin: 0 0 12px;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 12px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px;
  box-shadow: 0 9px 18px rgba(30, 34, 34, 0.06);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.card p {
  margin: 0 0 10px;
  color: var(--muted);
}

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

.btn {
  display: inline-block;
  border-radius: 9px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  padding: 7px 11px;
}

.btn.primary {
  background: var(--sea);
  color: #fff;
}

.btn.secondary {
  background: #f8fbfb;
  color: #0d5c55;
  border-color: #cbe9e5;
}

.btn.sun {
  background: #fef6e5;
  color: #744700;
  border-color: #f1ddb2;
}

.meta {
  margin-top: 8px;
  color: #5b6567;
  font-size: 0.87rem;
}

.mono {
  font-family: "IBM Plex Mono", monospace;
}

.backlink {
  margin-top: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}

th,
td {
  text-align: left;
  border-bottom: 1px solid var(--line);
  padding: 8px 10px;
}

thead th {
  background: #f5fbfa;
}

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  margin-top: 12px;
}

label {
  display: block;
  margin-bottom: 4px;
  font-weight: 600;
}

input,
select {
  width: 100%;
  border: 1px solid #c8d4d6;
  border-radius: 8px;
  padding: 8px 10px;
  font: inherit;
}

.inputs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
}

.result {
  margin-top: 12px;
  background: #f7fbfb;
  border: 1px solid #d7e8e8;
  border-radius: 8px;
  padding: 10px;
}

@media (max-width: 720px) {
  .wrap {
    padding-top: 20px;
  }
}