/* SlideFly landing page. Tokens: mist paper, navy ink, cobalt "fly", marigold "sun". */
:root {
  --paper: #EEF2F8; --surface: #FFFFFF; --ink: #0F1B33; --slate: #55617D;
  --line: #CBD5E6; --fly: #2F54EB; --fly-soft: #DCE4FF; --sun: #FFB020; --code: #0F1B33; --code-ink: #E7EDF8;
  --display: "Bricolage Grotesque", "Be Vietnam Pro", system-ui, sans-serif;
  --body: "Be Vietnam Pro", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --radius: 16px; --wrap: 1180px;
  --ease: cubic-bezier(.16, 1, .3, 1);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0B1222; --surface: #131D33; --ink: #E7EDF8; --slate: #9AA8C4;
    --line: #26334F; --fly: #7A93FF; --fly-soft: #1C2A52; --sun: #FFC24D; --code: #060B16; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0B1222; --surface: #131D33; --ink: #E7EDF8; --slate: #9AA8C4;
  --line: #26334F; --fly: #7A93FF; --fly-soft: #1C2A52; --sun: #FFC24D; --code: #060B16; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 17px/1.65 var(--body); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: var(--fly); text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--sun); outline-offset: 3px; border-radius: 6px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) { .wrap { padding: 0 16px; } }
code, kbd { font-family: var(--mono); font-size: .88em; }
kbd { display: inline-block; min-width: 1.8em; padding: 1px 7px; border: 1px solid var(--line); border-bottom-width: 3px; border-radius: 7px; background: var(--surface); text-align: center; }

/* ---------- header ---------- */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--paper) 86%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid transparent; transition: border-color .3s; }
.top.scrolled { border-bottom-color: var(--line); }
.top .wrap { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font: 800 21px/1 var(--display); color: var(--ink); text-decoration: none; letter-spacing: -.02em; }
.brand svg { width: 30px; height: 30px; }
.top nav { display: flex; gap: 22px; margin-left: auto; }
.top nav a { color: var(--slate); text-decoration: none; font-size: 15px; font-weight: 500; }
.top nav a:hover { color: var(--ink); }
.gh { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; background: var(--ink); color: var(--paper); text-decoration: none; font-size: 14px; font-weight: 600; }
.gh svg { width: 17px; height: 17px; }
@media (max-width: 860px) { .top nav { display: none; } .gh { margin-left: auto; } }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 22px; border-radius: 12px; font-weight: 600; font-size: 16px; text-decoration: none; border: 1.5px solid transparent; cursor: pointer; transition: transform .2s var(--ease), background .2s; }
.btn:hover { transform: translateY(-2px); }
.btn-main { background: var(--fly); color: #fff; }
.btn-ghost { border-color: var(--line); color: var(--ink); background: var(--surface); }

/* ---------- hero ---------- */
.hero { padding: 56px 0 72px; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; align-items: center; }
.eyebrow { font: 600 13px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--fly); }
.hero h1 { margin: 18px 0 20px; font: 800 clamp(48px, 7vw, 88px)/1 var(--display); letter-spacing: -.02em; }
.hero h1 .fly { position: relative; display: inline-block; color: var(--fly); }
.hero h1 .fly::after { content: ""; position: absolute; left: 4%; right: -4%; bottom: .06em; height: .14em; background: var(--sun); border-radius: 99px; z-index: -1; transform-origin: left; animation: swoosh 1.1s .5s var(--ease) both; }
@keyframes swoosh { from { transform: scaleX(0); } }
.hero .lead { font-size: 19px; color: var(--slate); max-width: 34em; margin: 0 0 30px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.facts { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 28px 0 0; padding: 0; list-style: none; font-size: 14px; color: var(--slate); }
.facts li::before { content: "✓"; color: var(--fly); font-weight: 700; margin-right: 6px; }
@media (max-width: 960px) { .hero .wrap { grid-template-columns: 1fr; gap: 40px; } .hero { padding-top: 32px; } }

/* projector: live deck + style switcher (the signature) */
.projector { background: var(--surface); border: 1px solid var(--line); border-radius: 20px; padding: 12px; box-shadow: 0 30px 60px -30px rgba(15, 27, 51, .35); }
.screen { position: relative; aspect-ratio: 16 / 9; border-radius: 12px; overflow: hidden; background: #0F1B33; }
.screen iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; pointer-events: none; }
.screen .hit { position: absolute; inset: 0; width: 100%; height: 100%; background: transparent; border: 0; cursor: pointer; padding: 0; }
.screen .hint { position: absolute; right: 12px; bottom: 12px; padding: 6px 10px; border-radius: 8px; background: rgba(15, 27, 51, .78); color: #fff; font: 500 12px/1 var(--mono); pointer-events: none; transition: opacity .4s; }
.screen.touched .hint { opacity: 0; }
.bar { display: flex; align-items: center; gap: 10px; padding: 12px 4px 4px; flex-wrap: wrap; }
.bar .now { font: 500 13px/1.3 var(--mono); color: var(--slate); margin-right: auto; }
.bar .now b { color: var(--ink); font-weight: 600; }
.ctl { width: 38px; height: 38px; border-radius: 10px; border: 1px solid var(--line); background: var(--paper); color: var(--ink); font-size: 18px; cursor: pointer; display: grid; place-items: center; }
.ctl:hover { border-color: var(--fly); color: var(--fly); }
.bar a.full { font-size: 14px; font-weight: 600; text-decoration: none; }
.wardrobe { margin-top: 10px; padding: 14px 4px 4px; border-top: 1px dashed var(--line); }
.wardrobe p { margin: 0 0 10px; font-size: 14px; color: var(--slate); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { display: inline-flex; align-items: center; gap: 8px; padding: 7px 12px 7px 8px; border-radius: 999px; border: 1px solid var(--line); background: var(--paper); color: var(--ink); font: 500 14px/1 var(--body); cursor: pointer; transition: border-color .2s, background .2s; }
.chip i { width: 18px; height: 18px; border-radius: 50%; background: var(--sw); box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .12); }
.chip[aria-pressed="true"] { border-color: var(--fly); background: var(--fly-soft); font-weight: 600; }

/* ---------- sections ---------- */
section.block { padding: 88px 0; }
section.block.alt { background: var(--surface); border-block: 1px solid var(--line); }
.head { max-width: 760px; margin-bottom: 44px; }
.head h2 { text-wrap: balance; margin: 12px 0 14px; font: 800 clamp(32px, 4.4vw, 52px)/1.12 var(--display); letter-spacing: -.015em; }
.head p { margin: 0; font-size: 18px; color: var(--slate); }
@media (max-width: 640px) { section.block { padding: 64px 0; } }