:root {
  --bg: #f6f7f8; --panel: #ffffff; --ink: #18222c; --muted: #5b6875; --line: #d5dbe1;
  --accent: #1d5f74; --in: #9a3412; --in-bg: #fdf0e6; --out: #3f6b4a; --out-bg: #eaf3ec;
  --dep: #6b4e99; --dep-bg: #f1ecf8; --open: #7a6200; --open-bg: #fbf4d6;
  --pro: #a11d1d; --pro-bg: #fbe9e9;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.5 Georgia, 'Times New Roman', serif; }
h1, h2, h3, legend, label, button, select, input, th, .pill, .small, .sub, .cite, .tag { font-family: Arial, Helvetica, sans-serif; }
.top { max-width: 1040px; margin: 0 auto; padding: 28px 16px 8px; }
h1 { margin: 0; font-size: 1.7rem; color: var(--accent); }
.sub { margin: 4px 0 12px; color: var(--muted); font-size: .9rem; }
.warn { margin: 0; padding: 10px 14px; border-left: 4px solid var(--accent); background: #e9f1f4; font-size: .95rem; }
main { max-width: 1040px; margin: 0 auto; padding: 8px 16px 24px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 18px 20px; margin-top: 16px; }
h2 { margin: 0 0 10px; font-size: 1.2rem; }
h3 { margin: 18px 0 4px; font-size: 1rem; }
.step { display: inline-block; width: 1.6em; height: 1.6em; line-height: 1.6em; text-align: center; border-radius: 50%; background: var(--accent); color: #fff; font-size: .85em; margin-right: 6px; }
.scenario { margin: 0 0 12px; }
.small { font-size: .82rem; color: var(--muted); margin: 6px 0; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
label { font-size: .85rem; color: var(--muted); display: flex; flex-direction: column; gap: 4px; }
label.block { margin-top: 10px; }
label.inline { flex-direction: row; align-items: center; gap: 6px; }
select, input[type=text], input[type=password], textarea { font: inherit; font-family: Arial, Helvetica, sans-serif; font-size: .95rem; padding: 7px 8px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--ink); }
textarea { width: 100%; resize: vertical; font-family: Georgia, serif; font-size: 1rem; }
fieldset { border: 1px solid var(--line); border-radius: 6px; margin: 14px 0 0; padding: 10px 12px; }
legend { font-size: .85rem; font-weight: bold; padding: 0 6px; }
.checks { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 6px 16px; }
.checks label, .features label { flex-direction: row; align-items: flex-start; gap: 8px; color: var(--ink); font-size: .88rem; }
.checks input, .features input { margin-top: 3px; }
table.reach { width: 100%; border-collapse: collapse; font-size: .88rem; }
table.reach th { text-align: left; font-weight: bold; color: var(--muted); padding: 4px 6px; font-size: .78rem; }
table.reach td { padding: 4px 6px; border-top: 1px solid var(--line); font-family: Arial, Helvetica, sans-serif; }
table.reach td.c { text-align: center; }
.tablewrap { overflow-x: auto; }
button { font-size: .95rem; padding: 8px 14px; border-radius: 6px; border: 1px solid var(--accent); background: var(--accent); color: #fff; cursor: pointer; }
button.ghost { background: #fff; color: var(--accent); margin-top: 12px; }
button:disabled { opacity: .6; cursor: wait; }
button:focus-visible, select:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible { outline: 3px solid #7fb3c4; outline-offset: 1px; }
.row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 10px; }
.samples { display: flex; flex-wrap: wrap; gap: 6px; }
.samples button { background: #fff; color: var(--accent); font-size: .82rem; padding: 5px 10px; }
.summary { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 12px; }
.pill { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: .78rem; font-weight: bold; white-space: nowrap; }
.pill.in { background: var(--in-bg); color: var(--in); } .pill.out { background: var(--out-bg); color: var(--out); }
.pill.depends { background: var(--dep-bg); color: var(--dep); } .pill.open { background: var(--open-bg); color: var(--open); }
details { border-top: 1px solid var(--line); padding: 8px 0; }
details:last-child { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; display: flex; gap: 10px; align-items: baseline; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary .name { font-family: Arial, Helvetica, sans-serif; font-weight: bold; font-size: .95rem; flex: 1; }
summary::before { content: '▸'; color: var(--muted); } details[open] > summary::before { content: '▾'; }
.reasons { margin: 8px 0 4px 20px; padding: 0; }
.reasons li { margin-bottom: 6px; }
.cite { display: block; font-size: .78rem; color: var(--muted); }
.record { margin: 6px 0 0 20px; font-size: .88rem; }
.record b { font-family: Arial, Helvetica, sans-serif; font-size: .8rem; }
.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 6px 18px; }
.features .evi { display: block; font-size: .78rem; color: var(--muted); font-style: italic; }
.regime { border: 1px solid var(--line); border-radius: 6px; margin-top: 12px; }
.regime > header { display: flex; gap: 10px; align-items: baseline; padding: 8px 12px; background: #f1f4f6; border-radius: 6px 6px 0 0; }
.regime > header .name { font-family: Arial, Helvetica, sans-serif; font-weight: bold; flex: 1; }
.finding { padding: 8px 12px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 190px 1fr; gap: 10px; }
.tag { font-size: .78rem; font-weight: bold; padding: 2px 8px; border-radius: 4px; align-self: start; justify-self: start; }
.tag.prohibited { background: var(--pro-bg); color: var(--pro); } .tag.missing { background: var(--in-bg); color: var(--in); }
.tag.check { background: var(--dep-bg); color: var(--dep); } .tag.note { background: #eef1f4; color: var(--muted); }
.basis { font-family: Arial, Helvetica, sans-serif; font-size: .72rem; color: var(--muted); display: block; margin-top: 4px; }
.quote { font-size: .82rem; color: var(--muted); font-style: italic; }
.none { padding: 10px 12px; color: var(--muted); font-size: .9rem; }
footer { max-width: 1040px; margin: 0 auto; padding: 0 16px 32px; font-size: .8rem; color: var(--muted); }
@media (max-width: 640px) { .finding { grid-template-columns: 1fr; } }

/* ---- two-by-two layout ---- */
.top, footer { max-width: 1560px; }
main.grid { max-width: 1560px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; align-items: start; padding-top: 16px; }
main.grid .panel { margin-top: 0; }
@media (max-width: 1000px) { main.grid { grid-template-columns: minmax(0, 1fr); } }
.checks { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.features { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.finding { grid-template-columns: 170px 1fr; }
table.reach th[scope=row] { color: var(--ink); font-size: .88rem; font-weight: normal; white-space: nowrap; }
table.reach th.c, table.reach td.c { text-align: center; }
table.reach th.grp { border-bottom: 1px solid var(--line); }
table.reach th { vertical-align: bottom; }
table.reach input { width: 16px; height: 16px; }
.nowrap { white-space: nowrap; }

/* ---- map ---- */
.map svg { width: 100%; height: auto; display: block; }
.map .sea { fill: #e9f1f4; }
.map .land { fill: #b9c6cd; stroke: #9fb0b9; stroke-width: .6; }
.map .marker { cursor: pointer; }
.map .marker circle { stroke: #fff; stroke-width: 2; }
.map .marker text { font: bold 11px Arial, Helvetica, sans-serif; fill: var(--ink); paint-order: stroke; stroke: #fff; stroke-width: 3px; stroke-linejoin: round; }
.map .marker.in circle { fill: #d9480f; } .map .marker.open circle { fill: #e0b400; }
.map .marker.depends circle { fill: #7c5cc4; } .map .marker.out circle { fill: #5c8f6b; }
.map .marker:focus-visible circle, .map .marker:hover circle { stroke: var(--ink); }
.map .marker:focus { outline: none; }
.pill.in { background: #d9480f; color: #fff; } .pill.open { background: #e0b400; color: #18222c; }
.pill.depends { background: #7c5cc4; color: #fff; } .pill.out { background: #5c8f6b; color: #fff; }
ul.key { list-style: none; margin: 6px 0 10px; padding: 0; font-size: .8rem; color: var(--muted); font-family: Arial, Helvetica, sans-serif; display: grid; gap: 4px; }
ul.key .pill, ul.key .tag { margin-right: 6px; display: inline-block; }

/* ---- scenario switcher ---- */
.scenarios { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-bottom: 12px; }
.scenario-tab { position: relative; flex-direction: row; cursor: pointer; }
.scenario-tab input { position: absolute; opacity: 0; }
.scenario-tab > span { display: flex; flex-direction: column; gap: 2px; width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--ink); }
.scenario-tab b { font-size: .92rem; }
.scenario-tab .tagline { font-size: .76rem; color: var(--muted); }
.scenario-tab input:checked + span { border-color: var(--accent); background: #e9f1f4; box-shadow: inset 0 0 0 1px var(--accent); }
.scenario-tab input:focus-visible + span { outline: 3px solid #7fb3c4; outline-offset: 1px; }
@media (max-width: 520px) { .scenarios { grid-template-columns: 1fr; } }

[hidden] { display: none !important; }