/* ==========================================================================
   CLIFFEGO — HOME SHOWCASE  (css/showcase.css)
   Everything for the scroll-driven "Websites → Web applications → Digital
   systems" section lives here. Logged in UPTD.txt.

   WHERE TO EDIT
   1. THEMES (below)  – colours + display font of each concept. ~12 variables.
   2. Wording         – plain text inside the CONCEPT blocks in index.html.
   3. Everything else – shared parts, scroll choreography, tablet/mobile.
                        Only touch it to change timing or layout.

   Concept classes: .concept--aster (slot 1), .concept--northline (slot 2),
   .concept--vela (slot 3). To restyle a slot, edit its theme; to replace a
   business, swap its block in index.html and update its theme.
   ========================================================================== */

/* ---------- 1. THEMES ----------
   --c-bg / --c-surface  page + card colour      --c-ink / --c-muted  text
   --c-line              hairlines               --c-accent           main accent
   --c-accent-2          second accent           --c-on-accent        text on accent
   --c-dark / --c-dark-2 dark panels / sidebar   --c-on-dark          text on dark
   --c-bar / --c-pill    browser bar + URL pill  --c-highlight        pale tint
   --c-node              Vela node fill          --c-font-display     headline font */
.concept--aster {      /* architecture & interiors · ivory, deep red, navy */
  --c-bg: #F5F1E6; --c-surface: #FFFFFF; --c-ink: #00113A;
  --c-muted: color-mix(in srgb, var(--c-ink) 62%, var(--c-bg));
  --c-line: color-mix(in srgb, var(--c-ink) 14%, transparent);
  --c-accent: #890304; --c-on-accent: #F8F2BF; --c-accent-2: #C9A227;
  --c-dark: #00113A; --c-dark-2: #002263; --c-on-dark: #E8E5C3; --c-highlight: #F8F2BF;
  --c-bar: #00113A; --c-pill: #002263;
  --c-font-display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif; /* no download */
}
.concept--northline {  /* consulting portal · indigo, purple, gold on cool ivory */
  --c-bg: color-mix(in srgb, #1B2A6B 5%, #F5F1E6); --c-surface: #FFFFFF; --c-ink: #0B0F1A;
  --c-muted: color-mix(in srgb, var(--c-ink) 60%, var(--c-bg));
  --c-line: color-mix(in srgb, var(--c-ink) 12%, transparent);
  --c-accent: #4B2E83; --c-on-accent: #F5F1E6; --c-accent-2: #C9A227;
  --c-dark: #1B2A6B; --c-dark-2: #0B0F1A; --c-on-dark: #F5F1E6; --c-highlight: #C9A227;
  --c-bar: #0B0F1A; --c-pill: #1B2A6B;
  --c-font-display: var(--font-base);
}
.concept--vela {       /* hospitality system · navy, cream, gold */
  --c-dark: #00113A; --c-dark-2: #002263; --c-node: #0B0F1A;
  --c-on-dark: #E8E5C3; --c-accent: #C9A227;
  --c-line: color-mix(in srgb, #E8E5C3 20%, transparent);
}

/* ==========================================================================
   Home — scroll-driven showcase (Websites → Web applications → Digital systems)
   One progress variable (--p, 0→1) drives every stage. Native view timeline
   where supported; main.js writes --p on a rAF-throttled scroll otherwise
   (same split the hero strata use). Pinned only when JS adds .is-pinned
   (≥768px, motion allowed); otherwise a plain stacked sequence.
   ========================================================================== */
@property --p { syntax: '<number>'; inherits: true; initial-value: 0; }
@keyframes sc-progress { to { --p: 1; } }

.showcase { position: relative; background: var(--surface-dark); color: var(--text-on-dark); }
.showcase__track {
  /* stage windows along --p */
  --b1: clamp(0, calc(var(--p) / 0.2), 1);
  --b2: clamp(0, calc((var(--p) - 0.36) / 0.22), 1);
  --b3: clamp(0, calc((var(--p) - 0.72) / 0.2), 1);
  --x1: clamp(0, calc((var(--p) - 0.3) / 0.08), 1);
  --x2: clamp(0, calc((var(--p) - 0.66) / 0.08), 1);
  --i2: clamp(0, calc((var(--p) - 0.32) / 0.07), 1);
  --i3: clamp(0, calc((var(--p) - 0.68) / 0.07), 1);
  --c1: calc(clamp(0, calc((var(--p) - 0.08) / 0.1), 1) * (1 - clamp(0, calc((var(--p) - 0.26) / 0.05), 1)));
  --c2: calc(clamp(0, calc((var(--p) - 0.46) / 0.1), 1) * (1 - clamp(0, calc((var(--p) - 0.62) / 0.05), 1)));
  --c3: clamp(0, calc((var(--p) - 0.82) / 0.1), 1);
}
.showcase__sticky { position: relative; padding: var(--spacing-section) 0; overflow: hidden; }
.showcase__grid {
  position: absolute; inset: -4rem 0; pointer-events: none; opacity: 0.45;
  background-image:
    linear-gradient(to right, var(--border-on-dark) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-on-dark) 1px, transparent 1px);
  background-size: 4rem 4rem;
  -webkit-mask-image: radial-gradient(ellipse at 50% 45%, #000 30%, transparent 78%);
  mask-image: radial-gradient(ellipse at 50% 45%, #000 30%, transparent 78%);
}
.showcase .container { position: relative; }

/* ---- Static sequence (mobile, reduced motion, no JS) ---- */
.sc-scene { display: flex; flex-direction: column; gap: 1.5rem; margin-bottom: 4.5rem; }
.sc-scene:last-child { margin-bottom: 0; }
.sc-rail { display: none; }
.sc-caption { display: grid; gap: 1rem; }
.sc-caption__text { color: var(--text-on-dark-muted); font: 400 1.0625rem/1.5 var(--font-base); max-width: 44ch; }
.sc-concept { display: flex; align-items: center; gap: 0.6rem; margin-top: 0.75rem; font: var(--text-small); color: var(--text-on-dark-muted); }
.sc-chip {
  flex: none;
  font: 600 0.625rem/1 var(--font-base); letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--accent); border-radius: var(--radius-input);
  color: var(--text-on-dark);
}
.sc-frame, .sc-panel {
  position: relative; width: 100%; aspect-ratio: 8 / 5;
  border: 1px solid var(--border-on-dark); border-radius: var(--radius-card);
  overflow: hidden; container-type: inline-size;
}
.sc-frame { background: var(--c-bg); }
.sc-panel { background: linear-gradient(160deg, var(--c-dark-2) 0%, var(--c-dark) 55%, var(--c-node) 100%); }
.sc-panel-wrap { display: contents; }
.sc-in-frame { position: absolute; inset: 0; display: flex; flex-direction: column; font-size: calc(100cqw / 60); }
.sc-bar { flex: none; display: flex; align-items: center; gap: 1.4em; height: 2.8em; padding: 0 1.2em; background: var(--c-bar); border-bottom: 1px solid color-mix(in srgb, var(--c-on-dark) 14%, transparent); }
.sc-dots i { display: inline-block; width: 0.7em; height: 0.7em; margin-right: 0.45em; border-radius: 50%; background: color-mix(in srgb, var(--c-on-dark) 22%, transparent); }
.sc-url { display: flex; align-items: center; gap: 0.7em; padding: 0.65em 1.2em; border-radius: 0.4em; background: var(--c-pill); color: color-mix(in srgb, var(--c-on-dark) 72%, transparent); font: 500 0.62em/1 var(--font-base); }
.sc-lock { position: relative; width: 0.7em; height: 0.55em; margin-top: 0.3em; border: 1.5px solid currentColor; border-radius: 0.12em; }
.sc-lock::before { content: ""; position: absolute; left: 50%; bottom: 100%; width: 0.4em; height: 0.35em; transform: translateX(-50%); border: 1.5px solid currentColor; border-bottom: 0; border-radius: 0.25em 0.25em 0 0; }
.sc-bar .sc-chip { margin-left: auto; font-size: 0.5em; }
.sc-body { position: relative; flex: 1; min-height: 0; }
.sc-mock { position: absolute; inset: 0; overflow: hidden; color: var(--c-ink); }
.sc-mock p, .sc-mock ul { margin: 0; }
/* ---- Shared mock parts (colours come from the theme variables above) ---- */
.m-btn { display: inline-block; padding: 0.95em 1.6em; border: 1px solid var(--c-accent); border-radius: var(--radius-button); background: var(--c-accent); color: var(--c-on-accent); font: 600 0.72em/1 var(--font-base); }
.m-btn--o { background: transparent; color: var(--c-accent); }
.m-logo { display: flex; align-items: center; gap: 0.6em; font: 700 0.95em/1 var(--c-font-display); letter-spacing: 0.04em; }
.m-logo::before { content: ""; width: 0.55em; height: 0.55em; background: var(--c-accent-2); transform: rotate(45deg); }

/* ---- Concept 1 · Aster House (website) ---- */
.concept--aster .m-h1 { font-size: 2.25em; letter-spacing: -0.015em; }
.concept--aster .m-logo { font-weight: 600; letter-spacing: 0.16em; }
.concept--aster .m-logo::before { width: 0.6em; height: 0.78em; background: var(--c-accent); border-radius: 99px 99px 0 0; transform: none; }
.m-site { display: flex; flex-direction: column; padding: 0 2.6em; background: var(--c-bg); }
.m-nav { display: flex; align-items: center; justify-content: space-between; height: 3.6em; border-bottom: 1px solid var(--c-line); }
.m-links { display: flex; gap: 1.8em; font: 500 0.72em/1 var(--font-base); color: var(--c-muted); }
.m-hero { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 3em; align-items: center; padding: 1.7em 0 1.4em; }
.m-eyebrow { display: flex; align-items: center; gap: 0.8em; font: 500 0.7em/1 var(--font-base); color: var(--c-muted); }
.m-eyebrow::before { content: ""; width: 2em; height: 1px; background: var(--c-accent); }
.m-h1 { margin-top: 0.5em !important; font: 400 2.9em/1.02 var(--c-font-display); letter-spacing: -0.01em; }
.m-p { margin-top: 0.9em !important; max-width: 36em; font: 400 0.8em/1.55 var(--font-base); color: var(--c-muted); }
.m-cta { display: flex; align-items: center; gap: 1.5em; margin-top: 1.3em !important; }
.m-link { font: 600 0.72em/1 var(--font-base); color: var(--c-ink); border-bottom: 1px solid currentColor; padding-bottom: 0.2em; }
/* signature visual: arched elevation drawing */
.m-art { position: relative; aspect-ratio: 5 / 4; border-radius: var(--radius-card); overflow: hidden; background: linear-gradient(180deg, var(--c-dark-2), var(--c-dark)); }
.m-sun { position: absolute; top: 12%; right: 13%; width: 16%; aspect-ratio: 1; border-radius: 50%; background: var(--c-accent-2); }
.m-arch { position: absolute; bottom: 14%; border: 1.5px solid var(--c-on-dark); border-bottom: 0; border-radius: 999px 999px 0 0; }
.m-arch::before { content: ""; position: absolute; inset: 12% 12% 0; border: 1px solid color-mix(in srgb, var(--c-on-dark) 45%, transparent); border-bottom: 0; border-radius: inherit; }
.m-arch--1 { left: 10%; width: 24%; height: 46%; }
.m-arch--2 { left: 38%; width: 26%; height: 62%; background: var(--c-accent); border-color: var(--c-accent); }
.m-arch--2::before { border-color: var(--c-highlight); }
.m-arch--3 { left: 68%; width: 22%; height: 38%; }
.m-ground { position: absolute; left: 0; right: 0; bottom: 14%; height: 1px; background: var(--c-on-dark); opacity: 0.6; }
.m-art__tag { position: absolute; left: 1em; bottom: 0.9em; padding: 0.5em 0.8em; border: 1px solid color-mix(in srgb, var(--c-on-dark) 22%, transparent); border-radius: 0.4em; background: color-mix(in srgb, var(--c-dark) 85%, transparent); color: var(--c-on-dark); font: 500 0.6em/1 var(--font-base); }
.m-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2em; margin-top: auto; padding-bottom: 1.8em; }
.m-card { display: grid; gap: 0.3em; padding: 0.8em; border: 1px solid var(--c-line); border-radius: var(--radius-card); background: var(--c-surface); }
.m-card__img { display: block; height: 4em; margin-bottom: 0.5em; border-radius: 0.3em; background: linear-gradient(135deg, var(--c-dark-2), var(--c-dark)); }
.m-card:nth-child(2) .m-card__img { background: linear-gradient(135deg, var(--c-accent), color-mix(in srgb, var(--c-accent) 55%, var(--c-dark))); }
.m-card:nth-child(3) .m-card__img { background: linear-gradient(135deg, var(--c-on-dark), var(--c-highlight)); }
.m-card b { font: 600 0.78em/1.2 var(--c-font-display); }
.m-card span { font: 400 0.62em/1.2 var(--font-base); color: var(--c-muted); }

/* ---- Concept 2 · Northline (web application) ---- */
.sc-app { display: grid; grid-template-columns: 11em 1fr; background: var(--c-bg); }
.a-side { display: flex; flex-direction: column; gap: 1.6em; padding: 1.4em 1em; background: var(--c-dark); color: var(--c-on-dark); }
.a-side ul { display: grid; gap: 0.2em; list-style: none; padding: 0; }
.a-side li { padding: 0.7em 0.8em; border-radius: 0.4em; font: 500 0.7em/1 var(--font-base); color: color-mix(in srgb, var(--c-on-dark) 68%, transparent); }
.a-side li.is-on { background: color-mix(in srgb, var(--c-on-dark) 14%, transparent); color: var(--c-on-dark); box-shadow: inset 2px 0 0 var(--c-accent-2); }
.a-user { display: flex; align-items: center; gap: 0.7em; margin-top: auto; font: 500 0.66em/1 var(--font-base); color: color-mix(in srgb, var(--c-on-dark) 68%, transparent); }
.a-user i { width: 1.8em; height: 1.8em; border-radius: 50%; background: var(--c-accent-2); }
.a-main { position: relative; display: flex; flex-direction: column; gap: 0.9em; min-width: 0; padding: 1.4em 1.6em; }
.a-top { display: flex; align-items: center; justify-content: space-between; }
.a-title { font: 600 1.45em/1 var(--c-font-display); letter-spacing: -0.02em; }
.a-sub { margin-top: 0.35em !important; font: 400 0.62em/1 var(--font-base); color: var(--c-muted); }
.a-chip { padding: 0.6em 1em; border: 1px solid var(--c-line); border-radius: 999px; background: var(--c-surface); font: 500 0.62em/1 var(--font-base); }
.a-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.9em; }
.a-metric, .a-card { border: 1px solid var(--c-line); border-radius: var(--radius-card); background: var(--c-surface); }
.a-metric { display: grid; gap: 0.5em; padding: 0.8em 1em; border-top: 2px solid var(--c-accent-2); }
.a-metric span { font: 400 0.62em/1 var(--font-base); color: var(--c-muted); }
.a-metric b { font: 600 1.5em/1 var(--c-font-display); letter-spacing: -0.02em; }
.a-card { padding: 0.9em 1em; }
.a-h { margin-bottom: 0.7em !important; font: 600 0.7em/1 var(--font-base); }
.a-row { display: grid; grid-template-columns: 6em 1fr 2.6em; align-items: center; gap: 1em; margin-bottom: 0.65em !important; font: 400 0.64em/1 var(--font-base); color: var(--c-muted); }
.a-row b { font-weight: 600; color: var(--c-ink); text-align: right; }
.a-track { height: 0.5em; border-radius: 99px; background: var(--c-bg); overflow: hidden; }
.a-track i { display: block; width: calc(var(--w) * 100%); height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--c-dark), var(--c-accent)); transform-origin: left; }
.a-table { padding: 0.2em 1em; }
.a-tr { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; align-items: center; gap: 1em; padding: 0.65em 0; border-top: 1px solid var(--c-line); font: 400 0.64em/1 var(--font-base); color: var(--c-muted); }
.a-tr b { font-weight: 600; color: var(--c-ink); }
.a-tr--h { border-top: 0; font-weight: 600; }
.a-st { justify-self: start; display: inline-flex; align-items: center; gap: 0.5em; }
.a-st::before { content: ""; width: 0.6em; height: 0.6em; border-radius: 50%; background: var(--c-accent); }
.a-st--on::before { background: var(--c-accent-2); }
.a-st--off::before { background: transparent; box-shadow: inset 0 0 0 1px var(--c-muted); }
.a-toast { position: absolute; right: 1.6em; bottom: 1.3em; display: flex; align-items: center; gap: 0.8em; padding: 0.85em 1.2em; border-radius: 0.5em; background: var(--c-dark-2); color: var(--c-on-dark); font: 500 0.64em/1 var(--font-base); }
.a-toast i { width: 0.7em; height: 0.7em; border-radius: 50%; background: var(--c-accent-2); box-shadow: 0 0 0 0.4em color-mix(in srgb, var(--c-accent-2) 25%, transparent); }

/* ---- Concept 3 · Vela (digital system) ---- */
.sc-panel .grid-lines { position: absolute; inset: 0; background-image: linear-gradient(to right, var(--c-line) 1px, transparent 1px), linear-gradient(to bottom, var(--c-line) 1px, transparent 1px); background-size: calc(100cqw / 24) calc(100cqw / 24); opacity: 0.7; }
.sc-panel .strata { position: absolute; left: -10%; right: -10%; bottom: -6%; height: 46%; background: color-mix(in srgb, var(--c-node) 70%, transparent); clip-path: polygon(0 40%, 100% 8%, 100% 100%, 0 100%); }
.sy-svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.sy-svg--sm { display: none; }
.sy-line, .sy-orbit { fill: none; stroke: var(--c-on-dark); stroke-opacity: 0.45; stroke-width: 1; }
.sy-orbit { stroke: var(--c-line); stroke-opacity: 1; }
.sy-line--loop { stroke-dasharray: 3 5; stroke-opacity: 0.3; }
.sy-pulse { display: none; }
.sy-box { fill: var(--c-node); stroke: var(--c-line); stroke-width: 1; }
.sy-box--core { stroke: var(--c-accent); }
.sy-ring { fill: color-mix(in srgb, var(--c-accent) 18%, transparent); }
.sy-ring--s { fill: color-mix(in srgb, var(--c-on-dark) 15%, transparent); }
.sy-dot { fill: var(--c-accent); }
.sy-dot--s { fill: var(--c-on-dark); }
.sy-t { fill: var(--c-on-dark); font: 600 14px var(--font-base); }
.sy-s { fill: color-mix(in srgb, var(--c-on-dark) 65%, transparent); font: 400 11px var(--font-base); }
.sy-c { text-anchor: middle; }
.sy-tag { fill: color-mix(in srgb, var(--c-on-dark) 65%, transparent); font: 500 10px var(--font-base); letter-spacing: 0.08em; text-transform: uppercase; }
.sc-tag, .sy-final { position: absolute; font: 500 0.6875rem/1 var(--font-base); color: color-mix(in srgb, var(--c-on-dark) 65%, transparent); }
.sc-tag { top: 1rem; right: 1rem; letter-spacing: 0.04em; }
.sy-final { left: 1.25rem; bottom: 1rem; display: flex; align-items: center; gap: 0.6rem; font-weight: 700; font-size: 0.75rem; letter-spacing: 0.04em; color: var(--c-on-dark); }
.sy-final::before { content: ""; width: 0.45rem; height: 0.45rem; background: var(--accent); transform: rotate(45deg); } /* Cliffego diamond */

/* ---- Pinned, scroll-driven presentation ---- */
.showcase.is-pinned .showcase__track { height: 420vh; height: 420svh; }
.showcase.is-pinned .showcase__sticky {
  position: sticky; top: 0;
  height: 100vh; height: 100svh;
  display: flex; align-items: center;
  padding: 5rem 0 2rem;
}
.showcase.is-pinned .showcase__grid { transform: translate3d(0, calc(var(--p) * -4rem), 0); }
.showcase.is-pinned .container { width: 100%; }
.showcase.is-pinned .showcase__stage {
  --fw: min(1152px, calc(100vw - 2 * var(--spacing-container) - 1rem), calc((100vh - 16.5rem) * 1.6));
  --fw: min(1152px, calc(100vw - 2 * var(--spacing-container) - 1rem), calc((100svh - 16.5rem) * 1.6));
  position: relative; width: var(--fw); margin: 0 auto;
  height: calc(var(--fw) / 1.6 + 9.5rem);
}
.showcase.is-pinned .sc-scene { position: absolute; inset: 2rem 0 0; margin: 0; pointer-events: none; will-change: opacity, transform; }
.showcase.is-pinned .sc-scene.reveal { transition: none; }
.showcase.is-pinned .sc-caption { grid-template-columns: auto minmax(0, 1fr); align-items: end; gap: 3rem; height: 6rem; }
.showcase.is-pinned .sc-visual { width: var(--fw); flex: none; }
.showcase.is-pinned .sc-caption .eyebrow { margin-bottom: 0.5rem; }

/* stage choreography */
.showcase.is-pinned .sc-scene--1 { --st: var(--b1); opacity: calc(1 - var(--x1)); transform: translate3d(0, calc(var(--x1) * -1rem), 0) scale(calc(1 - var(--x1) * 0.025)); }
.showcase.is-pinned .sc-scene--2 { --st: var(--b2); opacity: calc(var(--i2) * (1 - var(--x2))); transform: translate3d(0, calc((1 - var(--i2)) * 1rem + var(--x2) * -1rem), 0) scale(calc(0.975 + var(--i2) * 0.025 - var(--x2) * 0.025)); }
.showcase.is-pinned .sc-scene--3 { --st: var(--b3); opacity: var(--i3); transform: translate3d(0, calc((1 - var(--i3)) * 1rem), 0) scale(calc(0.975 + var(--i3) * 0.025)); }
.showcase.is-pinned .sc-scene--1 .sc-caption { opacity: var(--c1); }
.showcase.is-pinned .sc-scene--2 .sc-caption { opacity: var(--c2); }
.showcase.is-pinned .sc-scene--3 .sc-caption { opacity: var(--c3); }
.showcase.is-pinned .sc-in, .showcase.is-pinned .sc-grow {
  --e: clamp(0, calc((var(--st) - var(--d, 0)) * 5), 1);
}
.showcase.is-pinned .sc-in { opacity: var(--e); transform: translate3d(0, calc((1 - var(--e)) * 0.9em), 0); }
.showcase.is-pinned .sc-grow { transform: scaleX(var(--e)); }
.showcase.is-pinned .sy-line { --e: clamp(0, calc((var(--st) - var(--d, 0)) * 4), 1); stroke-dasharray: 1px 1px; stroke-dashoffset: calc((1 - var(--e)) * 1px); }
.showcase.is-pinned .sy-final { opacity: clamp(0, calc((var(--p) - 0.93) / 0.05), 1); }
@supports (width: mod(3px, 2px)) {
  .showcase.is-pinned .sy-pulse {
    display: block; fill: none; stroke: var(--c-accent); stroke-width: 2; stroke-linecap: round;
    stroke-dasharray: 0.05px 1px;
    stroke-dashoffset: calc((0.05 - mod(var(--b3) * 3 + var(--ph, 0), 1)) * 1px);
    opacity: clamp(0, calc((var(--b3) - 0.55) * 4), 1);
  }
}

/* progress rail (pinned only) */
.showcase.is-pinned .sc-rail { display: block; position: absolute; top: 0; left: 0; right: 0; height: 1rem; }
.sc-rail::before, .sc-rail__fill { content: ""; position: absolute; left: 0; right: 0; top: 0.5rem; height: 1px; background: var(--border-on-dark); }
.sc-rail__fill { background: var(--accent); transform-origin: left; transform: scaleX(clamp(0, calc(var(--p) / 0.7), 1)); }
.sc-rail__n { position: absolute; top: 0; display: flex; align-items: center; gap: 0.6rem; font: 500 0.75rem/1 var(--font-base); color: var(--text-on-dark-muted); background: var(--surface-dark); padding: 0 0.6rem; }
.sc-rail__n::before { content: ""; width: 8px; height: 8px; border-radius: 50%; border: 1px solid var(--color-silver); }
.sc-rail__n--1 { left: 0; padding-left: 0; }
.sc-rail__n--2 { left: 50%; transform: translateX(-4px); }
.sc-rail__n--3 { right: 0; padding-right: 0; flex-direction: row-reverse; }
.sc-rail__n--1::before { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 0 5px var(--accent-ring); }
.sc-rail__n--2::before { background: var(--accent); border-color: var(--accent); opacity: clamp(0.35, calc((var(--p) - 0.3) * 40), 1); }
.sc-rail__n--3::before { background: var(--accent); border-color: var(--accent); opacity: clamp(0.35, calc((var(--p) - 0.66) * 40), 1); }

/* native scroll timeline where supported (JS in main.js covers the rest) */
@supports (animation-timeline: view()) {
  .showcase.is-pinned .showcase__track { animation: sc-progress linear both; animation-timeline: view(); animation-range: contain; }
}

/* ---- Tablet: smaller, fewer simultaneous elements ---- */
@media (max-width: 900px) {
  .showcase.is-pinned .showcase__track { height: 340vh; height: 340svh; }
  .showcase.is-pinned .sc-caption { gap: 1.5rem; }
  .showcase.is-pinned .sy-pulse, .showcase.is-pinned .showcase__grid { transform: none; }
  .m-hide-md, .a-toast { display: none; }
  .m-links { display: none; }
}

/* ---- Mobile: simple vertical sequence with the existing reveal ---- */
@media (max-width: 767px) {
  .sc-in-frame { font-size: calc(100cqw / 40); }
  .sc-frame, .sc-panel { aspect-ratio: 40 / 46; }
  .sc-bar .sc-chip { font-size: 0.55em; }
  .m-hide-sm { display: none !important; }
  .m-site { padding: 0 1.6em; }
  .m-hero { grid-template-columns: 1fr; padding-top: 2em; }
  .m-h1 { font-size: 2.4em; }
  .m-cards { grid-template-columns: repeat(2, 1fr); }
  .m-card:nth-child(3) { display: none; }
  .sc-app { grid-template-columns: 1fr; }
  .a-side { display: none; }
  .a-metrics { grid-template-columns: repeat(2, 1fr); }
  .a-metric:nth-child(3) { display: none; }
  .sy-svg--lg { display: none; }
  .sy-svg--sm { display: block; }
  .sc-panel { aspect-ratio: 36 / 50; }
  .sc-tag { display: none; }
  .sc-scene--2 .sc-frame { aspect-ratio: 40 / 32; }
  .m-cards { margin-top: 1.4em; }
}