/* Second Wind — landing styles (shared by every language). MIT. */

:root {
  --bg: #ffffff;
  --bg-alt: #f5f5f7;
  --text: #1d1d1f;
  --text-soft: #515154;
  --line: rgba(0, 0, 0, 0.09);
  --accent: #0a84ff;
  --accent-2: #30b0c7;
  --card: #ffffff;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.10);
  --radius: 18px;
  --header-bg: rgba(255, 255, 255, 0.72);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0b0d;
    --bg-alt: #161618;
    --text: #f5f5f7;
    --text-soft: #a1a1a6;
    --line: rgba(255, 255, 255, 0.12);
    --card: #1c1c1e;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.55);
    --header-bg: rgba(11, 11, 13, 0.72);
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Display",
    "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
header {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex; align-items: center; gap: 20px;
  height: 56px;
}
.brand {
  display: flex; align-items: center; gap: 9px;
  font-weight: 700; font-size: 17px; color: var(--text);
}
.brand:hover { text-decoration: none; }
.brand svg { width: 21px; height: 21px; }
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--text-soft); font-size: 14px; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.lang {
  display: flex; border: 1px solid var(--line); border-radius: 999px;
  overflow: hidden; font-size: 12.5px; font-weight: 600;
}
.lang a { padding: 4px 11px; color: var(--text-soft); }
.lang a:hover { text-decoration: none; color: var(--text); }
.lang a.on { background: var(--text); color: var(--bg); }
@media (max-width: 720px) { .nav-links { display: none; } .lang { margin-left: auto; } }

/* ---------- language suggestion banner ---------- */
.lang-banner {
  display: none; align-items: center; justify-content: center; gap: 14px;
  padding: 9px 16px; font-size: 14px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  color: #fff;
}
.lang-banner a { color: #fff; font-weight: 700; text-decoration: underline; }
.lang-banner button {
  background: none; border: none; color: rgba(255,255,255,.85);
  font-size: 16px; cursor: pointer; line-height: 1;
}

/* ---------- hero ---------- */
.hero { text-align: center; padding: 72px 0 40px; }
.hero h1 {
  font-size: clamp(34px, 6vw, 58px);
  line-height: 1.08; letter-spacing: -0.02em; font-weight: 800;
}
.hero h1 .grad {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.sub {
  max-width: 640px; margin: 18px auto 0; font-size: 19px; color: var(--text-soft);
}
.cta-row { display: flex; gap: 12px; justify-content: center; margin-top: 28px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: 15.5px;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 6px 20px rgba(10,132,255,.35); }
.btn-ghost { border: 1.5px solid var(--line); color: var(--text); background: var(--card); }
.hero .note { margin-top: 14px; font-size: 13px; color: var(--text-soft); }

/* ---------- before/after ---------- */
.compare-card {
  margin: 44px auto 0; max-width: 900px;
  border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow); border: 1px solid var(--line);
  background: var(--card);
}
.titlebar {
  display: flex; align-items: center; gap: 6px; padding: 10px 14px;
  border-bottom: 1px solid var(--line); background: var(--bg-alt);
}
.titlebar i { width: 12px; height: 12px; border-radius: 50%; display: block; }
.titlebar i:nth-child(1) { background: #ff5f57; }
.titlebar i:nth-child(2) { background: #febc2e; }
.titlebar i:nth-child(3) { background: #28c840; }
.titlebar span { margin: 0 auto; font-size: 12.5px; color: var(--text-soft); }
.compare { position: relative; aspect-ratio: 1280 / 800; user-select: none; }
.compare img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; pointer-events: none;
}
.compare .before-img { clip-path: inset(0 calc(100% - var(--pos, 50%)) 0 0); }
.compare .divider {
  position: absolute; top: 0; bottom: 0; left: var(--pos, 50%); width: 2.5px;
  background: #fff; box-shadow: 0 0 12px rgba(0,0,0,.5);
  transform: translateX(-50%); pointer-events: none;
}
.compare .divider::after {
  content: "⇔"; position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 40px; height: 40px; border-radius: 50%;
  background: #fff; color: #1d1d1f; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 10px rgba(0,0,0,.35);
}
.compare input[type="range"] {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0; cursor: ew-resize; margin: 0;
}
.compare .tag {
  position: absolute; top: 12px; padding: 4px 12px; border-radius: 999px;
  font-size: 12px; font-weight: 700; color: #fff;
  background: rgba(0, 0, 0, 0.55); backdrop-filter: blur(6px); pointer-events: none;
}
.compare .tag.l { left: 12px; }
.compare .tag.r { right: 12px; background: var(--accent); }
.caption { text-align: center; font-size: 13.5px; color: var(--text-soft); padding: 26px 16px; max-width: 720px; margin: 0 auto; }

/* ---------- ribbon ---------- */
.ribbon {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 28px;
  padding: 18px 16px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  background: var(--bg-alt); font-size: 14px; color: var(--text-soft); font-weight: 500;
}

/* ---------- sections ---------- */
section { padding: 72px 0; }
section.alt { background: var(--bg-alt); }
.sec-head { text-align: center; max-width: 660px; margin: 0 auto 44px; }
.sec-head h2 { font-size: clamp(26px, 4vw, 38px); letter-spacing: -0.02em; line-height: 1.15; }
.sec-head p { margin-top: 12px; color: var(--text-soft); font-size: 17px; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 18px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px;
}
.card .ico { font-size: 26px; }
.card h3 { margin: 12px 0 6px; font-size: 17px; }
.card p { font-size: 14.5px; color: var(--text-soft); }

/* ---------- steps ---------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; counter-reset: step; }
.step { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.step .num {
  width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center;
  font-size: 16px;
}
.step h3 { margin: 14px 0 6px; font-size: 17px; }
.step p { font-size: 14.5px; color: var(--text-soft); }
.warn {
  margin-top: 26px; padding: 16px 20px; border-radius: 14px; font-size: 14.5px;
  background: rgba(254, 188, 46, 0.12); border: 1px solid rgba(254, 188, 46, 0.45);
}

/* ---------- compatibility ---------- */
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 560px; }
th, td { text-align: left; padding: 13px 18px; border-bottom: 1px solid var(--line); }
th { font-size: 12.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-soft); }
tr:last-child td { border-bottom: none; }
.ok { color: #23a55a; font-weight: 700; }
.soon { color: #b58a00; font-weight: 700; }
.no { color: var(--text-soft); font-weight: 700; }
.tablenote { font-size: 13px; color: var(--text-soft); margin-top: 12px; text-align: center; }

/* ---------- FAQ ---------- */
.faq { max-width: 760px; margin: 0 auto; }
.faq details {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 18px 22px; margin-bottom: 12px;
}
.faq summary { font-weight: 600; cursor: pointer; font-size: 15.5px; }
.faq details p { margin-top: 10px; color: var(--text-soft); font-size: 14.5px; }

/* ---------- final CTA ---------- */
.cta-band {
  text-align: center; padding: 84px 24px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
}
.cta-band h2 { font-size: clamp(28px, 5vw, 44px); letter-spacing: -0.02em; }
.cta-band p { margin: 12px auto 26px; max-width: 560px; opacity: .92; font-size: 17px; }
.cta-band .btn-primary { background: #fff; color: var(--accent); box-shadow: 0 6px 24px rgba(0,0,0,.25); }
.cta-band .btn-ghost { border-color: rgba(255,255,255,.6); color: #fff; background: transparent; }

/* ---------- footer ---------- */
footer { padding: 44px 0 56px; font-size: 13.5px; color: var(--text-soft); }
.foot-row { display: flex; flex-wrap: wrap; gap: 12px 26px; justify-content: center; margin-bottom: 18px; }
.foot-row a { color: var(--text-soft); }
.legal { text-align: center; max-width: 720px; margin: 0 auto; font-size: 12.5px; line-height: 1.7; }