/* NightAmber — lightweight landing styles (no frameworks) */
:root {
  --bg: #0d1220;
  --bg2: #111830;
  --card: #161e36;
  --line: #232c4d;
  --amber: #ffb347;
  --amber2: #f0a63a;
  --warm: #ff8c5a;
  --txt: #e9e4d8;
  --dim: #a9a598;
  --blue: #3b4a7a;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--txt);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
img { max-width: 100%; display: block; }
a { color: var(--amber); text-decoration: none; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

/* nav */
nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(13, 18, 32, .92); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-in { display: flex; align-items: center; gap: 18px; height: 58px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--txt); font-size: 18px; }
.brand img { width: 26px; height: 26px; border-radius: 6px; }
nav .sp { flex: 1; }
nav a.lnk { color: var(--dim); font-size: 15px; }
nav a.lnk:hover { color: var(--txt); }
.btn-nav {
  background: var(--amber2); color: #1a1206; font-weight: 600;
  padding: 8px 16px; border-radius: 8px; font-size: 15px;
}
.btn-nav:hover { background: var(--amber); color: #1a1206; }

/* language selector (flags) */
.lang { position: relative; }
.lang > button {
  display: flex; align-items: center; gap: 7px;
  background: var(--card); color: var(--txt); cursor: pointer;
  border: 1px solid var(--line); border-radius: 8px; padding: 6px 10px; font-size: 14px;
}
.lang .flag { width: 22px; height: 15px; border-radius: 2px; outline: 1px solid rgba(255,255,255,.15); }
.lang ul {
  position: absolute; right: 0; top: calc(100% + 6px); list-style: none;
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 5px; min-width: 170px; display: none; box-shadow: 0 10px 30px rgba(0,0,0,.5);
}
.lang.open ul { display: block; }
.lang li button {
  display: flex; align-items: center; gap: 10px; width: 100%;
  background: none; border: 0; color: var(--txt); cursor: pointer;
  padding: 8px 10px; border-radius: 7px; font-size: 14px; text-align: left;
}
.lang li button:hover { background: var(--bg2); }
.lang li .flag { width: 22px; height: 15px; border-radius: 2px; outline: 1px solid rgba(255,255,255,.15); flex: none; }

/* hero */
.hero {
  position: relative; overflow: hidden;
  background: #07090f url("../media/images/hero.jpg") center / cover no-repeat;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(7,9,15,.55) 0%, rgba(13,18,32,.35) 45%, var(--bg) 100%);
}
.hero-in { position: relative; text-align: center; padding: 96px 20px 110px; }
.hero .kicker {
  display: inline-block; font-size: 13px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--amber); border: 1px solid rgba(255,179,71,.35); border-radius: 999px;
  padding: 5px 14px; background: rgba(13,18,32,.55);
}
.hero h1 {
  font-size: clamp(40px, 7vw, 68px); line-height: 1.05; margin: 22px 0 14px;
  color: #fff; letter-spacing: -.01em;
}
.hero h1 .am { color: var(--amber); }
.hero p.sub { max-width: 620px; margin: 0 auto 30px; font-size: clamp(16px, 2.2vw, 19px); color: #d8d3c6; }
.cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; border-radius: 10px; padding: 13px 26px;
  font-weight: 600; font-size: 16px;
}
.btn-am { background: var(--amber2); color: #1a1206; }
.btn-am:hover { background: var(--amber); color: #1a1206; }
.btn-gh { border: 1px solid var(--line); color: var(--txt); background: rgba(13,18,32,.55); }
.btn-gh:hover { border-color: var(--amber); color: var(--amber); }
.hero .os { margin-top: 14px; font-size: 13px; color: var(--dim); }

section { padding: 72px 0; }
section.alt { background: var(--bg2); }
h2 { font-size: clamp(26px, 4vw, 34px); text-align: center; margin-bottom: 8px; }
p.lead { text-align: center; color: var(--dim); max-width: 640px; margin: 0 auto 42px; }

/* how it works */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }
.step {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 26px;
}
.step .n {
  width: 34px; height: 34px; border-radius: 9px; display: flex; align-items: center; justify-content: center;
  background: rgba(255,179,71,.12); color: var(--amber); font-weight: 700; margin-bottom: 14px;
}
.step h3 { font-size: 18px; margin-bottom: 8px; }
.step p { color: var(--dim); font-size: 15px; }

/* benefits */
.bens { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.ben { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 24px; }
.ben .ic { font-size: 26px; margin-bottom: 12px; }
.ben h3 { font-size: 17px; margin-bottom: 7px; }
.ben p { color: var(--dim); font-size: 14.5px; }
.honest {
  max-width: 760px; margin: 34px auto 0; text-align: center;
  font-size: 13.5px; color: var(--dim);
  border: 1px dashed var(--line); border-radius: 12px; padding: 16px 20px;
}
.honest b { color: var(--txt); }

/* video */
.video-box {
  max-width: 860px; margin: 0 auto; border: 1px solid var(--line); border-radius: 16px;
  overflow: hidden; background: #000; aspect-ratio: 16 / 9;
}
.video-box iframe { width: 100%; height: 100%; border: 0; display: block; }
.video-cap { text-align: center; color: var(--dim); font-size: 13.5px; margin-top: 14px; }

/* gallery */
.gal { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.gal figure {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
}
.gal img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.gal figcaption { padding: 13px 16px; font-size: 14px; color: var(--dim); }

/* download page */
.dl-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; max-width: 860px; margin: 0 auto; }
.dl-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 30px; text-align: center;
}
.dl-card.soon { opacity: .75; }
.dl-card .os-ic { font-size: 34px; margin-bottom: 10px; }
.dl-card h3 { font-size: 20px; margin-bottom: 6px; }
.dl-card .meta { font-size: 13px; color: var(--dim); margin-bottom: 18px; }
.dl-card p { color: var(--dim); font-size: 14.5px; margin-bottom: 18px; }
.btn-dl {
  display: inline-block; background: var(--amber2); color: #1a1206; font-weight: 700;
  padding: 13px 30px; border-radius: 10px; font-size: 16px;
}
.btn-dl:hover { background: var(--amber); color: #1a1206; }
.dl-mirror {
  display: block; margin-top: 12px; font-size: 13.5px; color: var(--dim);
  text-decoration: underline; text-underline-offset: 3px;
}
.dl-mirror:hover { color: var(--amber); }
.btn-off {
  display: inline-block; border: 1px solid var(--line); color: var(--dim);
  padding: 13px 30px; border-radius: 10px; font-size: 16px; cursor: default;
}
.howto {
  max-width: 860px; margin: 26px auto 0; background: var(--card);
  border: 1px solid var(--line); border-radius: 16px; padding: 26px 30px;
}
.howto h3 { margin-bottom: 12px; font-size: 17px; }
.howto ol { margin: 0 0 18px 22px; color: var(--dim); font-size: 15px; }
.howto ol li { margin: 6px 0; }
.howto .warn {
  border-left: 3px solid var(--amber2); background: rgba(255,179,71,.06);
  padding: 12px 16px; border-radius: 0 10px 10px 0; font-size: 14px; color: var(--dim);
}
.howto .warn b { color: var(--amber); }

/* footer */
footer { border-top: 1px solid var(--line); padding: 34px 0 44px; color: var(--dim); font-size: 13.5px; }
.foot-in { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }
footer .sp { flex: 1; }

@media (max-width: 640px) {
  .hero-in { padding: 70px 16px 80px; }
  section { padding: 54px 0; }
}