/* 綠燈俠 GreenLight Hero — official site */
:root {
  --dark: #071310;
  --ink: #102a33;
  --ink-soft: #35524a;
  --green: #5dff7a;
  --green-deep: #0b6b3c;
  --mint: #d9f8e4;
  --paper: #f2faf4;
  --card: #ffffff;
  --yellow: #f8e86d;
  --line: #102a33;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.7;
}

p { margin: 0.4em 0; }
a { color: var(--green-deep); }
h1, h2, h3 { line-height: 1.3; }

h1 span, h2 span {
  display: block;
  font-size: 0.52em;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--green-deep);
}

/* ---------- header / footer ---------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 14px 24px;
  background: var(--dark);
  border-bottom: 4px solid var(--green);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--mint);
  font-weight: 800;
  font-size: 1.1rem;
}
.brand img { border-radius: 8px; }
.brand em {
  font-style: normal;
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  color: var(--green);
  margin-left: 6px;
}

.site-header nav { display: flex; gap: 4px; flex-wrap: wrap; }
.site-header nav a {
  color: var(--mint);
  text-decoration: none;
  padding: 6px 12px;
  border: 2px solid transparent;
  border-radius: 8px;
  font-size: 0.95rem;
}
.site-header nav a:hover,
.site-header nav a.active {
  border-color: var(--green);
  color: var(--green);
}

footer {
  background: var(--dark);
  color: #9fc9b4;
  padding: 28px 0;
  margin-top: 48px;
}
footer p { margin: 0.3em 0; font-size: 0.92rem; }
footer p:last-child { color: var(--green); font-size: 0.82rem; margin-top: 14px; }
.disclaimer { color: #6f9784; font-size: 0.82rem; }

/* ---------- layout ---------- */
.wrap { max-width: 1000px; margin: 0 auto; padding: 12px 24px 8px; }
.narrow { max-width: 820px; }

.wrap > h2 { font-size: 1.9rem; margin: 44px 0 18px; }
main h1 { font-size: 2.2rem; margin: 36px 0 4px; }
.updated { color: var(--ink-soft); font-size: 0.9rem; margin-bottom: 26px; }
section h3 { margin-top: 22px; color: var(--green-deep); }
.pair { border-left: 4px solid var(--mint); padding-left: 14px; margin: 8px 0 14px; }
.pair p[lang="en"] { color: var(--ink-soft); font-size: 0.96em; }

/* ---------- hero ---------- */
.hero {
  background:
    radial-gradient(1200px 480px at 50% -10%, #123527 0%, transparent 60%),
    var(--dark);
  padding: 56px 24px 64px;
  border-bottom: 4px solid var(--green-deep);
}
.hero-card { max-width: 760px; margin: 0 auto; text-align: center; }
.hero h1 { font-size: 3.4rem; color: var(--mint); margin: 0; }
.hero h1 span {
  font-size: 1rem;
  letter-spacing: 0.42em;
  color: var(--green);
  margin-top: 6px;
}
.hero-card > p { color: var(--mint); }
.hero-card p[lang="en"] { color: #9fc9b4; }
.hero .note { color: #6f9784 !important; font-size: 0.9rem; }
.cta-row { margin: 26px 0 18px; }

.btn {
  display: inline-block;
  padding: 14px 26px;
  border-radius: 10px;
  border: 3px solid var(--line);
  font-weight: 800;
  text-decoration: none;
  box-shadow: 5px 5px 0 rgba(7, 19, 16, 0.9);
}
.btn:active { transform: translate(2px, 2px); box-shadow: 2px 2px 0 rgba(7, 19, 16, 0.9); }
.btn-primary { background: var(--green); color: var(--ink); font-size: 1.05rem; line-height: 1.4; }
.btn-ghost { background: var(--mint); color: var(--ink); font-size: 0.92rem; margin-top: 10px; }

/* ---------- cards & grids ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.card {
  background: var(--card);
  border: 3px solid var(--line);
  border-radius: 12px;
  padding: 20px;
  box-shadow: 5px 5px 0 #cfe6d6;
}
.card h3 { margin: 0 0 8px; }
.card p[lang="en"] { color: var(--ink-soft); font-size: 0.95em; }

/* ---------- steps ---------- */
.steps {
  list-style: none;
  padding: 0;
  counter-reset: step;
  display: grid;
  gap: 14px;
}
.steps li {
  counter-increment: step;
  background: var(--card);
  border: 3px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px 16px 62px;
  position: relative;
  box-shadow: 4px 4px 0 #cfe6d6;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 14px;
  top: 14px;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--yellow);
  border: 2px solid var(--line);
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
}
.steps li p[lang="en"] { color: var(--ink-soft); font-size: 0.95em; margin-bottom: 0; }

/* ---------- screenshots ---------- */
.shots { display: flex; gap: 20px; flex-wrap: wrap; justify-content: center; }
.shots img {
  width: 220px;
  height: auto;
  border: 3px solid var(--line);
  border-radius: 12px;
  box-shadow: 5px 5px 0 #cfe6d6;
}

/* ---------- FAQ ---------- */
details {
  background: var(--card);
  border: 3px solid var(--line);
  border-radius: 12px;
  margin: 12px 0;
  padding: 4px 16px;
  box-shadow: 4px 4px 0 #cfe6d6;
}
summary {
  cursor: pointer;
  font-weight: 800;
  padding: 10px 0;
  color: var(--green-deep);
}
details[open] summary { border-bottom: 2px solid var(--mint); margin-bottom: 6px; }

@media (max-width: 640px) {
  .hero h1 { font-size: 2.4rem; }
  .site-header { justify-content: center; }
}