/* Presentation page. Reuses the tokens, background and preview from style.css. */
html { scroll-behavior: smooth; }
#page { position: absolute; inset: 0; overflow-x: hidden; overflow-y: auto; scroll-behavior: smooth; -webkit-overflow-scrolling: touch; }
#page .bg { position: fixed; }
#page > *:not(.bg) { position: relative; }
#page a { color: inherit; text-decoration: none; }

.ln-top { display: flex; align-items: center; gap: 10px; max-width: 1120px; margin: 0 auto;
  padding: calc(var(--sat) + 12px) calc(var(--sar) + 20px) 10px calc(var(--sal) + 20px); }
.ln-top img { filter: drop-shadow(0 6px 16px rgba(56, 189, 248, .45)); }
.ln-top b { flex: 1; font-size: 19px; font-weight: 800; letter-spacing: -.02em; }
.ln-top b span, .ln-hero h1 em { background: linear-gradient(90deg, var(--a1), var(--a2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ln-top nav { display: none; gap: 26px; margin-right: 14px; font-size: 14px; color: var(--muted); }
.ln-top nav a:hover { color: var(--text); }
.ln-open { min-height: 40px; padding: 0 16px; font-size: 14px; border-radius: 12px; }

.ln-hero { max-width: 1120px; margin: 0 auto; padding: 22px calc(var(--sar) + 20px) 10px calc(var(--sal) + 20px); display: flex; flex-direction: column; gap: 26px; }
.ln-hero h1 { margin: 14px 0 10px; font-size: clamp(36px, 11vw, 64px); line-height: 1.03; font-weight: 800; letter-spacing: -.045em; }
.ln-hero h1 em { font-style: normal; }
.ln-hero .tagline { font-size: 16.500px; max-width: 40ch; }
.ln-cta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.ln-cta .big { width: auto; flex: 1 1 220px; padding: 0 22px; }
.ln-more { display: inline-flex; align-items: center; justify-content: center; flex: 1 1 160px; min-height: 58px; border-radius: 18px; font-size: 15px;
  background: color-mix(in srgb, var(--panel) 55%, transparent); }
.ln-hero .fine { text-align: left; }
.ln-hero .demo { flex: none; padding: 10px 0 18px; }

.ln-sec { max-width: 1120px; margin: 0 auto; padding: 44px calc(var(--sar) + 20px) 0 calc(var(--sal) + 20px); scroll-margin-top: 10px; }
.ln-sec h2 { margin: 0 0 16px; font-size: 26px; font-weight: 800; letter-spacing: -.03em; }
.ln-sec h2::before { content: "# "; font-family: var(--mono); font-weight: 600; color: var(--a2); }
.ln-sec > h3 { margin: 30px 0 4px; font-size: 18px; letter-spacing: -.02em; }
.ln-sub { margin: -8px 0 16px; color: var(--muted); font-size: 14.500px; }
.ln-sec > h3 + .ln-sub { margin-top: 0; }

.ln-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.ln-card, .ln-steps li, .ln-safe, .ln-cmds, .ln-tips { background: color-mix(in srgb, var(--panel) 74%, transparent); border: 1px solid var(--line2); border-radius: 18px;
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.ln-card { padding: 18px; transition: transform .18s, border-color .18s; }
@media (hover: hover) { .ln-card:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--a2) 55%, transparent); } }
.ln-ico { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 13px; font-size: 22px;
  background: rgba(56, 189, 248, .10); box-shadow: inset 0 0 0 1px rgba(56, 189, 248, .22); }
.ln-card h3, .ln-steps h3 { margin: 12px 0 4px; font-size: 16.500px; letter-spacing: -.01em; }
.ln-card p, .ln-steps p { margin: 0; color: var(--muted); font-size: 14.500px; line-height: 1.5; }

.ln-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; counter-reset: step; }
.ln-steps li { padding: 18px; counter-increment: step; }
.ln-steps li::before { content: "0" counter(step); font: 700 13px var(--mono); color: var(--a2); letter-spacing: .08em; }
.ln-steps h3 { margin-top: 8px; }

.ln-tips { list-style: none; margin: 0; padding: 6px 16px; }
.ln-tips li { padding: 11px 0; font-size: 14.500px; color: var(--muted); border-bottom: 1px solid var(--line); }
.ln-tips li:last-child { border-bottom: 0; }
.ln-tips b { color: var(--text); }

.ln-cmds { padding: 4px 16px; }
.ln-cmd { display: flex; flex-direction: column; gap: 2px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.ln-cmd:last-child { border-bottom: 0; }
.ln-cmd code { font: 600 13.500px var(--mono); color: var(--a2); }
.ln-cmd span { font-size: 14.500px; color: var(--muted); }

.ln-safe { padding: 18px; }
.ln-safe p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.55; max-width: 70ch; }
.ln-mails { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.ln-mails:empty { display: none; }
.ln-mail { display: flex; flex-direction: column; gap: 1px; padding: 10px 14px; border: 1px solid var(--line2); border-radius: 14px; background: var(--panel2); }
.ln-mail span { font: 10.500px var(--mono); text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.ln-mail b { font-size: 15px; color: var(--a2); overflow-wrap: anywhere; }

.ln-foot { max-width: 1120px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 44px calc(var(--sar) + 20px) calc(var(--sab) + 26px) calc(var(--sal) + 20px); font: 12px var(--mono); color: var(--muted); }
.ln-foot a { color: var(--a2) !important; }

@media (min-width: 900px) {
  .ln-top nav { display: flex; }
  .ln-hero { flex-direction: row; align-items: center; gap: 64px; padding-top: 54px; padding-bottom: 30px; }
  .ln-copy, .ln-hero .demo { flex: 1; min-width: 0; }
  .ln-cta .big, .ln-more { flex: 0 0 auto; }
  .ln-more { padding: 0 22px; }
  .ln-sec { padding-top: 64px; }
  .ln-cmd { flex-direction: row; align-items: baseline; gap: 18px; }
  .ln-cmd code { flex: 0 0 220px; }
}