/* ListingUpgrades brochure. Palette from the dusk sample: indigo sky, lamp-lit windows, overcast mist. */
:root {
  --mist: #E7ECF1;
  --paper: #F6F8FA;
  --ink: #131A2C;
  --dusk: #1E2A4A;
  --dusk-2: #27375F;
  --lamp: #F5B942;
  --slate: #5F6E85;
  --line: #CBD3DD;
  --on-dusk: #E7ECF1;
  --on-dusk-soft: #B8C3D3;
  --display: 'Syne', 'Avenir Next', 'Segoe UI', sans-serif;
  --body: 'IBM Plex Sans', 'Segoe UI', Helvetica, Arial, sans-serif;
  --mono: 'IBM Plex Mono', 'SFMono-Regular', Menlo, Consolas, monospace;
  --wrap: 1120px;
  --gutter: clamp(16px, 4vw, 40px);
  --r: 10px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--mist); color: var(--ink);
  font-family: var(--body); font-size: 17px; line-height: 1.55;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--lamp); outline-offset: 3px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--gutter); }
.narrow { max-width: 760px; }
.mono { font-family: var(--mono); font-weight: 500; font-size: 12.5px; letter-spacing: .02em; }
.small { font-size: 12px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--lamp); color: var(--ink); padding: 8px 12px; border-radius: 6px; z-index: 10; }
.skip:focus { left: 8px; }

/* header */
.top { display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px var(--gutter); background: var(--dusk); color: var(--on-dusk); }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--display); font-weight: 700; font-size: 18px; letter-spacing: -.01em; }
.brand b { font-weight: 800; color: var(--lamp); }
.top-link { font-size: 14px; color: var(--on-dusk-soft); text-decoration: none; border-bottom: 1px solid transparent; }
.top-link:hover { color: var(--on-dusk); border-color: var(--lamp); }

/* type */
.eyebrow { font-family: var(--mono); font-weight: 500; font-size: 12.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--slate); margin: 0 0 14px; }
@media (max-width: 480px) { .eyebrow { font-size: 11px; letter-spacing: .08em; } }
.band-dusk .eyebrow, .hero .eyebrow { color: var(--lamp); }
h1 { font-family: var(--display); font-weight: 800; font-size: clamp(34px, 6.2vw, 68px); line-height: 1.02; letter-spacing: -.025em; margin: 0 0 22px; text-wrap: balance; }
h2 { font-family: var(--display); font-weight: 800; font-size: clamp(26px, 3.6vw, 40px); line-height: 1.08; letter-spacing: -.02em; margin: 0 0 14px; text-wrap: balance; }
h3 { font-family: var(--display); font-weight: 700; font-size: 19px; line-height: 1.25; margin: 0 0 6px; letter-spacing: -.01em; }
.lede { font-size: clamp(17px, 1.6vw, 20px); max-width: 60ch; color: var(--on-dusk-soft); margin: 0 0 26px; }
.sub { max-width: 62ch; color: var(--slate); margin: 0 0 18px; }
.band-dusk .sub { color: var(--on-dusk-soft); }

/* buttons */
.btn, .btn-quiet { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; font-weight: 600; font-size: 15px; border-radius: 8px; padding: 12px 18px; min-height: 44px; }
.btn { background: var(--lamp); color: var(--ink); }
.btn:hover { background: #ffc85a; }
.btn-lg { font-family: var(--mono); font-size: 16px; padding: 14px 22px; }
.btn-quiet { color: var(--on-dusk); border: 1px solid rgba(231,236,241,.35); }
.btn-quiet:hover { border-color: var(--lamp); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 40px; }

/* hero */
.hero { background: var(--dusk); color: var(--on-dusk); padding: clamp(40px, 7vw, 88px) 0 0;
  background-image: radial-gradient(1200px 500px at 80% -10%, rgba(245,185,66,.14), transparent 60%); }
.hero-copy { max-width: 900px; }

/* the signature: detail-crop comparison */
.compare { margin: 0; padding-bottom: clamp(32px, 5vw, 64px); }
.compare-stage { position: relative; aspect-ratio: 1200 / 1120; overflow: hidden; border-radius: var(--r);
  background: #000; box-shadow: 0 30px 60px -30px rgba(0,0,0,.7); --pos: 50%; touch-action: none; }
.compare-img { position: absolute; inset: 0; }
.compare-img img { width: 100%; height: 100%; object-fit: cover; }
.compare-after { clip-path: inset(0 0 0 var(--pos)); }
.compare-divider { position: absolute; top: 0; bottom: 0; left: var(--pos); width: 2px; background: var(--lamp); transform: translateX(-1px); pointer-events: none; }
.compare-handle { position: absolute; top: 50%; left: 50%; width: 44px; height: 44px; margin: -22px 0 0 -22px; border-radius: 50%;
  background: var(--lamp); box-shadow: 0 6px 18px rgba(0,0,0,.45); display: grid; place-items: center; }
.compare-handle::before { content: ""; width: 14px; height: 14px; border-left: 3px solid var(--dusk); border-right: 3px solid var(--dusk); }
.tag { position: absolute; top: 14px; font-family: var(--mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; padding: 6px 10px; border-radius: 6px; background: rgba(19,26,44,.78); color: var(--on-dusk); pointer-events: none; }
.tag-l { left: 14px; } .tag-r { right: 14px; color: var(--lamp); }
.compare-range { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize; -webkit-appearance: none; appearance: none; }
.compare-range:focus-visible { opacity: 1; outline: 3px solid var(--lamp); outline-offset: -3px; background: transparent; }
.compare-range:focus-visible::-webkit-slider-thumb { -webkit-appearance: none; width: 0; height: 0; }
.compare-range::-moz-range-thumb { opacity: 0; }
.compare figcaption { margin-top: 12px; color: var(--on-dusk-soft); }
.compare.nudge .compare-stage { animation: nudge 2.2s cubic-bezier(.4,0,.2,1) 1; }
@keyframes nudge { 0% { --pos: 50%; } 35% { --pos: 22%; } 70% { --pos: 68%; } 100% { --pos: 50%; } }
@property --pos { syntax: '<length-percentage>'; inherits: true; initial-value: 50%; }

/* bands */
.band { padding: clamp(48px, 8vw, 104px) 0; }
.band-dusk { background: var(--dusk-2); color: var(--on-dusk); }
.band-paper { background: var(--paper); }
.band-reply { background: var(--lamp); color: var(--ink); }
.band-reply .eyebrow { color: #6b4f0a; } .band-reply .sub { color: #3b3420; }
.split { display: grid; gap: 28px clamp(24px, 5vw, 72px); align-items: start; }
@media (min-width: 820px) { .split { grid-template-columns: 1fr 1.1fr; } }

/* contact sheet */
.sheet { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 22px; }
@media (min-width: 640px) { .sheet { grid-template-columns: 1fr 1fr; } }
.sheet li { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); padding: 10px; }
.sheet img { border-radius: 6px; width: 100%; }
.sheet .mono { margin: 10px 2px 2px; color: var(--slate); }

.gif-frame { margin: 0; }
.gif-frame img { border-radius: var(--r); width: 100%; }
.gif-frame figcaption, .reel figcaption { margin-top: 10px; color: var(--slate); }
.band-dusk .gif-frame figcaption { color: var(--on-dusk-soft); }
.reel { margin: 20px 0 0; }
.reel video { border-radius: var(--r); background: #000; width: 100%; }

/* steps: a real sequence, so the numbers mean something */
.steps { list-style: none; padding: 0; margin: 32px 0 0; display: grid; gap: 18px; counter-reset: s; }
@media (min-width: 820px) { .steps { grid-template-columns: repeat(2, 1fr); } }
.steps li { position: relative; padding: 22px 22px 22px 64px; background: var(--mist); border-radius: var(--r); border: 1px solid var(--line); }
.steps p { margin: 0; color: var(--slate); font-size: 15.5px; }
.step-n { position: absolute; left: 20px; top: 22px; width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; background: var(--dusk); color: var(--lamp); font-size: 13px; }

/* spec list */
.spec { margin: 0; display: grid; gap: 0; border-top: 1px solid var(--line); }
.spec > div { display: grid; grid-template-columns: 96px 1fr; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.spec dt { color: var(--slate); text-transform: uppercase; letter-spacing: .1em; padding-top: 3px; }
.spec dd { margin: 0; }

/* footer */
.foot { background: var(--dusk); color: var(--on-dusk-soft); padding: 36px 0 48px; font-size: 14px; }
.foot b { color: var(--on-dusk); }
.foot p { margin: 0 0 10px; max-width: 80ch; }

/* reveal */
.reveal { opacity: 0; transform: translateY(10px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .compare.nudge .compare-stage { animation: none; }
}