/* ============================================================
   Agri Port — shared design tokens & base styles
   ============================================================ */
:root {
  color-scheme: light;

  /* Brand */
  --green-950: #0d2a1f;
  --green-900: #123a2b;
  --green-800: #174d38;
  --green-700: #1e6147;
  --green-600: #277a59;
  --green-500: #33936c;
  --green-300: #8cc7aa;
  --green-100: #dcefe4;
  --green-50:  #eef7f1;
  --amber:      #e8a13d;
  --amber-deep: #b97e21;

  /* Surfaces & ink (chart tokens follow the validated reference palette) */
  --page:       #f9f8f2;
  --card:       #ffffff;
  --surface-1:  #fcfcfb;   /* chart surface */
  --ink:        #0b0b0b;
  --ink-2:      #52514e;
  --muted:      #898781;
  --grid:       #e1e0d9;
  --baseline:   #c3c2b7;
  --hairline:   rgba(11, 11, 11, 0.10);

  /* Chart series (validated light-mode slots) */
  --series-blue:  #2a78d6;
  --series-green: #008300;
  --seq-250: #86b6ef;
  --seq-400: #3987e5;
  --seq-550: #1c5cab;
  --good:     #0ca30c;
  --good-text:#006300;
  --critical: #d03b3b;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(13, 42, 31, 0.06), 0 8px 24px rgba(13, 42, 31, 0.07);
  --shadow-lg: 0 2px 6px rgba(13, 42, 31, 0.08), 0 18px 48px rgba(13, 42, 31, 0.12);

  --font: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic UI",
          "Noto Sans JP", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--page);
  color: var(--ink);
  line-height: 1.7;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

button {
  font-family: inherit;
  border: none;
  cursor: pointer;
  background: none;
  color: inherit;
  font-size: inherit;
}

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---------- Shared header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(249, 248, 242, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
}
.site-header .wrap {
  display: flex; align-items: center; gap: 28px;
  height: 60px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 17px; letter-spacing: 0.02em;
}
.brand .brand-mark { width: 28px; height: 28px; flex: none; }
.brand small {
  display: block; font-size: 10px; font-weight: 600;
  color: var(--muted); letter-spacing: 0.08em;
}
.site-nav { display: flex; gap: 22px; margin-left: auto; font-size: 13.5px; color: var(--ink-2); }
.site-nav a:hover { color: var(--green-700); }
.header-cta {
  background: var(--green-800); color: #fff;
  padding: 8px 18px; border-radius: 999px;
  font-size: 13.5px; font-weight: 600;
  transition: background 0.15s ease;
}
.header-cta:hover { background: var(--green-700); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: 999px;
  font-weight: 700; font-size: 15px;
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--amber); color: var(--green-950); box-shadow: var(--shadow); }
.btn-primary:hover { background: #f0ad4f; box-shadow: var(--shadow-lg); }
.btn-ghost { background: rgba(255,255,255,0.12); color: #fff; border: 1px solid rgba(255,255,255,0.35); }
.btn-ghost:hover { background: rgba(255,255,255,0.2); }
.btn-green { background: var(--green-800); color: #fff; }
.btn-green:hover { background: var(--green-700); }

/* ---------- Section scaffolding ---------- */
.section { padding: 88px 0; }
.section-alt { background: #fff; border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.kicker {
  display: inline-block; font-size: 12px; font-weight: 700;
  letter-spacing: 0.14em; color: var(--green-600);
  background: var(--green-50); border: 1px solid var(--green-100);
  padding: 4px 12px; border-radius: 999px; margin-bottom: 14px;
}
.section h2 { font-size: 30px; line-height: 1.4; letter-spacing: 0.01em; margin-bottom: 12px; }
.section .lede { color: var(--ink-2); max-width: 640px; margin-bottom: 40px; }

/* ---------- Cards ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ---------- Chart components (dataviz spec) ---------- */
.viz-card {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 20px 20px 14px;
  box-shadow: var(--shadow);
}
.viz-title { font-size: 14.5px; font-weight: 700; }
.viz-sub { font-size: 12px; color: var(--muted); margin-bottom: 10px; }
.viz-plot { position: relative; }
.viz-plot svg { width: 100%; height: auto; }
.viz-source { font-size: 11px; color: var(--muted); margin-top: 8px; }
.viz-source a { text-decoration: underline; text-underline-offset: 2px; }

.viz-tooltip {
  position: absolute; pointer-events: none; z-index: 10;
  background: #fff; border: 1px solid var(--hairline);
  border-radius: 8px; box-shadow: var(--shadow-lg);
  padding: 8px 12px; font-size: 12px; line-height: 1.5;
  white-space: nowrap; opacity: 0; transition: opacity 0.1s ease;
}
.viz-tooltip.on { opacity: 1; }
.viz-tooltip .tt-label { color: var(--muted); font-size: 11px; }
.viz-tooltip .tt-value { font-weight: 700; font-variant-numeric: tabular-nums; }

.viz-table { margin-top: 10px; }
.viz-table summary {
  font-size: 12px; color: var(--muted); cursor: pointer;
  list-style: none; display: inline-flex; align-items: center; gap: 6px;
}
.viz-table summary::before { content: "▸"; font-size: 10px; }
.viz-table[open] summary::before { content: "▾"; }
.viz-table table {
  width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 12px;
}
.viz-table th, .viz-table td {
  text-align: right; padding: 5px 10px;
  border-bottom: 1px solid var(--grid);
  font-variant-numeric: tabular-nums;
}
.viz-table th:first-child, .viz-table td:first-child { text-align: left; }
.viz-table th { color: var(--muted); font-weight: 600; }

/* Stat tiles */
.stat-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 16px;
}
.stat-tile {
  background: var(--surface-1);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.stat-label { font-size: 12.5px; color: var(--ink-2); }
.stat-value { font-size: 32px; font-weight: 700; line-height: 1.25; letter-spacing: 0.01em; }
.stat-value small { font-size: 15px; font-weight: 600; color: var(--ink-2); margin-left: 2px; }
.stat-delta { font-size: 12.5px; font-weight: 600; }
.stat-delta.down { color: var(--critical); }
.stat-delta.up { color: var(--good-text); }
.stat-note { font-size: 11px; color: var(--muted); margin-top: 2px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--green-950); color: rgba(255,255,255,0.75);
  padding: 48px 0 36px; font-size: 13px;
}
.site-footer .brand { color: #fff; margin-bottom: 10px; }
.site-footer .disclaimer {
  margin-top: 18px; padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.14);
  font-size: 11.5px; color: rgba(255,255,255,0.55);
  line-height: 1.8;
}

@media (max-width: 720px) {
  .section { padding: 64px 0; }
  .section h2 { font-size: 24px; }
  .site-nav { display: none; }
}