/* 紹介ページ・状況ページ(worldnewsmap.pages.dev)。色は docs/BRAND.md のダーク */
:root {
  --bg: #060c18;
  --panel: #0c1628;
  --line: rgba(156, 200, 255, 0.16);
  --ink: #e6eefa;
  --muted: #9aabc4;
  --gold: #ffc94d;
  --gold-ink: #1a1203;
  --danger: #ff8a7a;
  --radius: 14px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(255, 201, 77, 0.08), transparent 60%),
    radial-gradient(900px 500px at 50% 110%, rgba(156, 200, 255, 0.07), transparent 60%),
    var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  line-height: 1.7;
  letter-spacing: 0.01em;
}

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

.wrap {
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
  padding: 20px 20px 56px;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

header .logo { height: 34px; width: auto; display: block; }

.lang {
  background: none;
  border: 1px solid var(--line);
  color: var(--muted);
  border-radius: 999px;
  padding: 4px 12px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}
.lang:hover { color: var(--ink); }

.hero { text-align: center; padding: 36px 0 8px; }

.hero .mark {
  width: min(78%, 340px);
  height: auto;
  display: block;
  margin: 0 auto 8px;
  filter: drop-shadow(0 0 40px rgba(255, 201, 77, 0.12));
}

.badge {
  display: inline-block;
  border: 1px solid rgba(255, 201, 77, 0.55);
  color: var(--gold);
  border-radius: 999px;
  padding: 3px 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  margin-bottom: 18px;
}

h1 {
  font-size: clamp(26px, 7vw, 34px);
  line-height: 1.35;
  margin: 0 0 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.lead { color: var(--ink); opacity: 0.85; margin: 0 0 18px; font-size: 16px; }

.desc { color: var(--muted); font-size: 14.5px; text-align: left; margin: 0 0 8px; }

.features {
  list-style: none;
  padding: 0;
  margin: 24px 0 32px;
  display: grid;
  gap: 10px;
}

.features li {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 16px;
  background: rgba(12, 22, 40, 0.6);
}

.features b { display: block; font-size: 15px; }
.features span { color: var(--muted); font-size: 13.5px; }

.card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel);
  padding: 22px 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.card h2 { margin: 0 0 4px; font-size: 20px; }
.card .sub { margin: 0 0 18px; color: var(--muted); font-size: 13.5px; }

label { display: block; font-size: 13.5px; font-weight: 600; margin: 14px 0 6px; }
label .opt { color: var(--muted); font-weight: 400; }

.field {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #081122;
  transition: border-color 0.15s;
}
.field:focus-within { border-color: rgba(255, 201, 77, 0.7); }
.field .at { color: var(--muted); padding-left: 12px; }

input {
  flex: 1;
  min-width: 0;
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 16px; /* iPhone で拡大されないように */
  padding: 11px 12px;
  outline: none;
}
.field .at + input { padding-left: 4px; }

.hint { color: var(--muted); font-size: 12.5px; margin: 6px 2px 0; }

/* 人には見えない入力欄(機械よけ) */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.button {
  display: block;
  width: 100%;
  margin-top: 22px;
  border: 0;
  border-radius: 12px;
  background: var(--gold);
  color: var(--gold-ink);
  font: inherit;
  font-size: 16px;
  font-weight: 700;
  padding: 13px 16px;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
}
.button:disabled { opacity: 0.6; cursor: wait; }
.button.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
  font-weight: 600;
}

.error { color: var(--danger); font-size: 13.5px; margin: 12px 2px 0; min-height: 1em; }
.error:empty { display: none; }

.fine { color: var(--muted); font-size: 12px; margin: 16px 2px 0; }

details { margin-top: 12px; color: var(--muted); font-size: 12.5px; }
details summary { cursor: pointer; }
details p { margin: 8px 0 0; }

.done { text-align: center; }
.done .check {
  width: 56px;
  height: 56px;
  margin: 4px auto 14px;
  border-radius: 50%;
  border: 1px solid rgba(255, 201, 77, 0.55);
  display: grid;
  place-items: center;
  color: var(--gold);
  font-size: 26px;
  box-shadow: 0 0 40px rgba(255, 201, 77, 0.18);
}
.done h2 { font-size: 21px; }
.done p { color: var(--muted); font-size: 14px; margin: 6px 0; }

.linkbox {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}
.linkbox input {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #081122;
  font-size: 13px;
  color: var(--muted);
}
.linkbox button {
  flex: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 13px;
  padding: 0 14px;
  cursor: pointer;
}

.rows { margin: 18px 0 0; padding: 0; list-style: none; text-align: left; }
.rows li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding: 10px 2px;
  font-size: 13.5px;
}
.rows li span:first-child { color: var(--muted); }
.rows li span:last-child { overflow-wrap: anywhere; text-align: right; }

.state-invited .check { background: var(--gold); color: var(--gold-ink); }

footer { margin-top: 36px; text-align: center; color: var(--muted); font-size: 12px; }

[hidden] { display: none !important; }

.phrase { display: inline-block; }

@media (prefers-reduced-motion: no-preference) {
  .hero .mark { animation: breathe 6s ease-in-out infinite; }
  @keyframes breathe {
    0%, 100% { filter: drop-shadow(0 0 30px rgba(255, 201, 77, 0.08)); }
    50% { filter: drop-shadow(0 0 48px rgba(255, 201, 77, 0.2)); }
  }
}