/* ChordKits — chordkits.com
   The page is a larger instrument: one deep ocean field lit from above, raised plates, a console
   surface cut into regions. Type: Panchang (display, readouts), Switzer (text). Both self-hosted. */

:root {
  --abyss: #03101f;
  --ocean-lit: #0a7ae0;
  --ocean: #042b54;
  --panel-top: #102a43;
  --panel-bottom: #071827;
  --control-top: #132a40;
  --control-bottom: #081522;
  --control-border: #18476f;
  --hairline: #143a5c;
  --ink: #b7cbe7;
  --ink-strong: #dbe8f8;
  --mute: #758dad;
  --teal: #5fd6c8;
  --active: #056acb;
  --highlight: #3286d0;
  --c1: #8f7bff;
  --c2: #3fd08f;
  --c3: #54a8e8;
  --c4: #e8a04c;

  --r-card: 22px;
  --r-strip: 14px;
  --r-capsule: 9px;

  --font-display: "Panchang", "Helvetica Neue", Arial, sans-serif;
  --font: "Switzer", "Helvetica Neue", Arial, sans-serif;

  --measure: 60ch;
  --gutter: clamp(16px, 4vw, 48px);
  --wrap: 1240px;
  --space: clamp(96px, 13vw, 190px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--abyss);
  color: var(--ink);
  font-family: var(--font);
  font-size: clamp(16px, 1.05vw, 18px);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
p { margin: 0; max-width: var(--measure); }
h1, h2, h3 { margin: 0; color: var(--ink-strong); font-family: var(--font-display); font-weight: 600; line-height: 1.08; letter-spacing: -0.005em; }
h2 { font-size: clamp(26px, 3vw, 42px); max-width: 24ch; text-wrap: balance; }
h3 { font-size: clamp(17px, 1.35vw, 20px); line-height: 1.25; }

.num { font-variant-numeric: tabular-nums; font-weight: 500; }
.readout { font-family: var(--font-display); font-weight: 600; font-variant-numeric: tabular-nums; letter-spacing: 0; }
.caption {
  display: block;
  font-size: 11px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--teal);
}
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 16px; top: -60px; padding: 10px 16px; background: var(--active); color: #fff; border-radius: 999px; z-index: 100; }
.skip:focus { top: 16px; }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; }

/* ─── Raised plate: lit top edge over a defining border. Never a darker recess. */
.plate {
  position: relative;
  background: linear-gradient(180deg, var(--panel-top), var(--panel-bottom));
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.09), 0 40px 80px -30px rgba(0,0,0,.7), 0 0 0 1px rgba(0,0,0,.35);
}

/* ─── Buttons */
.btn {
  display: inline-flex; align-items: center; gap: .55em;
  padding: 0 1.35em; height: 46px;
  border-radius: 999px; border: 1px solid transparent;
  font: inherit; font-weight: 600; font-size: 15px; text-decoration: none; white-space: nowrap;
  cursor: pointer; transition: transform .15s ease, box-shadow .2s ease, background-color .2s ease;
}
.btn:active { transform: translateY(1px); }
.btn-buy {
  color: #f4f9ff;
  background: linear-gradient(180deg, #2a8ae0, var(--active));
  border-color: #3f9be8;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.28), 0 10px 30px -10px rgba(10,122,224,.8);
}
.btn-buy:hover { background: linear-gradient(180deg, #3a98ea, #0c74d6); }
.btn-buy .num { opacity: .85; }
.btn-ghost {
  color: var(--ink-strong);
  background: linear-gradient(180deg, var(--control-top), var(--control-bottom));
  border-color: var(--control-border);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
}
.btn-ghost:hover { border-color: #2a6aa0; }
.btn-lg { height: 56px; font-size: 17px; padding-inline: 1.7em; }

/* ─── Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 32px;
  padding: 14px var(--gutter);
  background: rgba(3,16,31,.72);
  backdrop-filter: blur(18px) saturate(1.3);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
  border-bottom: 1px solid rgba(24,71,111,.5);
}
.nav-brand img { height: 26px; width: auto; }
.nav-links { display: flex; gap: 28px; margin-left: auto; }
.nav-links a { text-decoration: none; color: var(--ink); font-size: 15px; font-weight: 500; }
.nav-links a:hover { color: var(--ink-strong); }
.nav-buy { height: 40px; font-size: 14px; }
@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav-buy { margin-left: auto; }
}

/* ─── Hero: pinned by motion.js on desktop; static on phones and with reduced motion */
.hero { position: relative; margin-top: -68px; /* sits under the sticky nav */ }
.hero-pin {
  position: relative; height: 100vh; height: 100svh; min-height: 640px;
  display: grid; place-items: center; overflow: hidden;
  isolation: isolate;
}
.hero-shot {
  margin: 0; width: min(var(--wrap), calc(100vw - 2 * var(--gutter)), calc(80svh * 1.551));
  will-change: transform;
}
.hero-shot img {
  width: 100%; user-select: none; -webkit-user-select: none; -webkit-user-drag: none; pointer-events: none;
  border-radius: var(--r-card);
  border: 1px solid rgba(60,140,220,.35);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.12), 0 60px 120px -40px rgba(0,0,0,.9), 0 0 0 1px rgba(0,0,0,.5);
}
.hero-veil {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(180deg, var(--abyss) 0%, rgba(3,16,31,.2) 28%, rgba(3,16,31,.2) 72%, var(--abyss) 100%),
    radial-gradient(60% 60% at 50% 50%, rgba(3,16,31,.3), rgba(3,16,31,.7));
}
.hero-copy {
  user-select: none; -webkit-user-select: none;
  position: absolute; inset: 0; display: grid; align-content: center; justify-items: center; gap: 20px;
  padding: 0 var(--gutter); text-align: center; pointer-events: none;
}
.hero-copy .hero-actions, .hero-copy .badges { pointer-events: auto; }
.hero-series { font-size: 14px; font-weight: 600; letter-spacing: .04em; color: var(--teal); }
.hero-title {
  font-size: clamp(60px, 13vw, 184px);
  font-weight: 700; line-height: .9; letter-spacing: -0.02em;
  color: #eaf3ff;
  text-shadow: 0 0 90px rgba(10,122,224,.55), 0 2px 0 rgba(255,255,255,.06);
  margin-top: -4px;
}
.hero-title span { display: inline-flex; }
.hero-title i { font-style: normal; display: inline-block; will-change: transform, filter, opacity; }
.hero-tag { font-family: var(--font-display); font-weight: 600; font-size: clamp(19px, 2vw, 28px); color: #eaf3ff; letter-spacing: -0.005em; line-height: 1.2; max-width: 30ch; text-wrap: balance; }
.hero-lede { font-size: clamp(16px, 1.3vw, 19px); color: var(--ink); max-width: 50ch; text-wrap: balance; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 6px; }
.badges { list-style: none; margin: 8px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.badges li {
  font-family: var(--font-display); font-weight: 500; font-size: 11px; letter-spacing: .08em;
  padding: 6px 12px; border-radius: 999px;
  color: var(--mute); border: 1px solid rgba(24,71,111,.9); background: rgba(7,24,39,.6);
}
.hero-scroll {
  position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%);
  font-size: 11px; letter-spacing: .18em; text-transform: uppercase; color: var(--mute);
  display: grid; justify-items: center; gap: 8px;
}
.hero-scroll::after { content: ""; width: 1px; height: 28px; background: linear-gradient(180deg, var(--mute), transparent); }
.js .hero-title i, .js .hero-series, .js .hero-tag, .js .hero-lede, .js .hero-actions, .js .badges, .js .hero-scroll { opacity: 0; }

/* Static hero (phones, reduced motion, no GSAP): copy above, instrument below, no veil. */
.hero-static .hero { margin-top: 0; }
.hero-static .hero-pin { height: auto; min-height: 0; display: grid; gap: clamp(36px, 6vw, 72px); padding: clamp(48px, 8vw, 96px) 0 0; overflow: visible; }
.hero-static .hero-copy { position: static; pointer-events: auto; order: -1; }
.hero-static .hero-veil, .hero-static .hero-scroll { display: none; }
.hero-static .hero-shot { width: 100%; }
.hero-static .hero-title i, .hero-static .hero-series, .hero-static .hero-tag, .hero-static .hero-lede, .hero-static .hero-actions, .hero-static .badges { opacity: 1; }

/* ─── Section rhythm */
.idea, .showcase, .kits, .engine, .features, .glance, .buy, .faq {
  max-width: var(--wrap); margin: 0 auto;
  padding: var(--space) var(--gutter) 0;
}
.buy { padding-top: calc(var(--space) * .55); }
.section-head { display: grid; gap: 14px; margin-bottom: clamp(28px, 4.5vw, 52px); }
.section-head p { color: var(--mute); font-size: 1.05em; max-width: 56ch; }

/* ─── The kit idea + playable grid */
.idea { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(32px, 6vw, 96px); align-items: center; }
.idea-copy { display: grid; gap: 20px; }
.idea-hint { color: var(--mute); font-size: .92em; }
.idea-count { color: var(--ink-strong); font-weight: 500; }
.idea-count .readout { color: var(--teal); font-size: 1.15em; }
.grid-count { margin-left: auto; display: inline-flex; align-items: baseline; gap: 8px; color: var(--mute); font-size: 12px; }
.grid-count .readout { font-size: 20px; color: var(--teal); text-shadow: 0 0 14px rgba(95,214,200,.5); }
@media (max-width: 520px) { .grid-count-label { display: none; } }
kbd {
  font-family: var(--font-display); font-size: .78em; font-weight: 500; padding: 2px 7px; border-radius: 6px;
  border: 1px solid var(--control-border); background: var(--control-bottom); color: var(--ink-strong);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
}
@media (max-width: 900px) { .idea { grid-template-columns: minmax(0, 1fr); } }

.grid-plate { padding: clamp(18px, 2.4vw, 28px); transition: opacity .3s ease; }
.grid-plate.is-loading .pads { opacity: .6; }
.grid-head { display: grid; grid-template-columns: 86px 1fr auto; align-items: center; gap: 12px; margin-bottom: 14px; }
.col-nums { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.col-nums li { display: grid; place-items: center; }
.col-nums li .readout {
  width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center;
  font-size: 12px; color: var(--ink-strong);
  background: linear-gradient(180deg, var(--control-top), var(--control-bottom));
  border: 1.5px solid var(--acc); box-shadow: 0 0 12px -2px var(--acc);
}
.grid-key { font-size: 13px; color: var(--mute); }
.grid-key .readout { color: var(--ink-strong); margin-left: 4px; }
.grid-body { display: grid; grid-template-columns: 86px 1fr; gap: 12px; }
.row-names { list-style: none; margin: 0; padding: 0; display: grid; grid-template-rows: repeat(4, 1fr); gap: 10px; }
.row-names li { display: flex; align-items: center; font-size: 13px; font-weight: 600; color: var(--ink); letter-spacing: .02em; }
.pads { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; transition: opacity .3s ease; }
.pad {
  --acc: var(--c1);
  position: relative; aspect-ratio: 1.55; min-height: 54px;
  border-radius: var(--r-capsule);
  background: linear-gradient(180deg, var(--control-top), var(--control-bottom));
  border: 1px solid var(--control-border);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08), inset 0 -18px 30px -24px var(--acc);
  color: var(--ink);
  cursor: pointer; padding: 8px 10px; text-align: left;
  display: flex; align-items: flex-start; gap: 7px;
  font: inherit;
  transition: box-shadow .12s ease, border-color .12s ease, transform .06s ease;
  touch-action: manipulation;
}
.pad::before { content: ""; width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; background: var(--acc); box-shadow: 0 0 8px var(--acc); opacity: .75; }
.pad .readout { font-size: 14px; color: var(--ink-strong); }
.pad:hover { border-color: color-mix(in srgb, var(--acc) 55%, var(--control-border)); }
.pad.is-lit, .pad:active {
  border-color: var(--acc);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.14), inset 0 -18px 30px -18px var(--acc), 0 0 22px -4px var(--acc);
  transform: translateY(1px);
}
.pad.is-lit::before, .pad:active::before { opacity: 1; }
.c1 { --acc: var(--c1); } .c2 { --acc: var(--c2); } .c3 { --acc: var(--c3); } .c4 { --acc: var(--c4); }
.grid-foot { display: flex; align-items: center; gap: 16px; margin-top: 16px; }
.chip {
  height: 34px; padding: 0 16px; border-radius: 999px; font: inherit; font-size: 13px; font-weight: 600;
  color: var(--ink-strong); cursor: pointer;
  background: linear-gradient(180deg, var(--control-top), var(--control-bottom));
  border: 1px solid var(--control-border); box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
}
.chip[aria-pressed="true"] { background: linear-gradient(180deg, #2a8ae0, var(--active)); border-color: #3f9be8; color: #fff; }
.grid-chord { font-family: var(--font-display); font-weight: 500; font-size: 12px; letter-spacing: .04em; color: var(--teal); min-height: 1em; }
@media (max-width: 520px) {
  .grid-head, .grid-body { grid-template-columns: 64px 1fr; }
  .grid-key { display: none; }
  .row-names li { font-size: 11px; }
  .pads, .col-nums, .row-names { gap: 7px; }
  .pad { min-height: 44px; aspect-ratio: 1.3; padding: 6px 7px; }
  .pad .readout { font-size: 12px; }
}

/* ─── Showcase video */
.showcase-frame {
  position: relative; border-radius: var(--r-card); overflow: hidden; background: #000;
  border: 1px solid rgba(60,140,220,.3);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.1), 0 60px 120px -40px rgba(0,0,0,.9);
  aspect-ratio: 16 / 9;
}
.showcase-frame video { width: 100%; height: 100%; object-fit: cover; }
.showcase-play {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  display: inline-flex; align-items: center; gap: 10px; height: 64px; padding: 0 28px 0 20px;
  border-radius: 999px; border: 1px solid rgba(255,255,255,.22); cursor: pointer;
  background: rgba(3,16,31,.55); color: #f4f9ff; font: inherit; font-weight: 600; font-size: 16px;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.2), 0 20px 50px -10px rgba(0,0,0,.8);
  transition: transform .15s ease, background-color .2s ease;
}
.showcase-play:hover { background: rgba(5,106,203,.65); transform: translate(-50%, -50%) scale(1.03); }
.showcase-frame.is-playing .showcase-play { display: none; }

/* ─── Kits lineup */
.kit-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.kit {
  position: relative; border-radius: var(--r-card); overflow: hidden;
  background: linear-gradient(180deg, var(--panel-top), var(--panel-bottom));
  border: 1px solid var(--hairline);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.09), 0 40px 80px -30px rgba(0,0,0,.7);
  display: grid; grid-template-rows: auto 1fr;
}
.kit-ocean { grid-column: span 2; grid-row: span 2; grid-template-rows: minmax(300px, 1fr) auto; }
.kit-face { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--k1); filter: saturate(.3) brightness(.6); transition: filter .45s ease; }
.kit-ocean .kit-face { aspect-ratio: auto; height: 100%; }
.kit.is-live .kit-face, .kit:hover .kit-face, .kit:focus-within .kit-face { filter: none; }
.kit-face img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 50%; filter: hue-rotate(var(--hue, 0deg)) saturate(var(--sat, 1)); transform: scale(1.02); }
.kit-ocean .kit-face img { object-position: 50% 45%; }
.kit-face::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(3,16,31,.55) 100%); }
.kit-mini { position: absolute; left: 6%; right: 6%; bottom: 8%; z-index: 1; display: grid; grid-template-columns: repeat(8, 1fr); gap: 4px; }
.kit-mini i { display: block; height: 9px; border-radius: 3px; background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(0,0,0,.35)); border: 1px solid color-mix(in srgb, var(--ka) 25%, transparent); }
.kit-mini i:nth-child(4n+1) { border-color: color-mix(in srgb, var(--ka) 60%, transparent); }
.kit-mini i:nth-child(4n+3) { border-color: color-mix(in srgb, var(--kb) 60%, transparent); }
.kit-meta { padding: 20px 22px 22px; display: grid; gap: 10px; align-content: start; }
.kit-ocean .kit-meta { padding: clamp(22px, 2.6vw, 32px) clamp(24px, 3vw, 36px); grid-template-columns: 1fr auto; align-items: center; column-gap: 32px; }
.kit-ocean .kit-meta h3, .kit-ocean .kit-meta p { grid-column: 1; }
.kit-ocean h3 { font-size: clamp(28px, 3vw, 40px); }
.kit-meta p { color: var(--mute); font-size: .95em; }
.kit-cta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 10px; }
.kit-ocean .kit-cta { grid-column: 2; grid-row: 1 / span 2; margin-top: 0; flex-direction: column; align-items: flex-end; gap: 10px; }
.kit-status { font-size: 13px; color: var(--teal); font-weight: 600; }
.notify { display: flex; gap: 6px; margin-top: 8px; }
.notify input { flex: 1; min-width: 0; height: 38px; padding: 0 12px; border-radius: 999px; font: inherit; font-size: 14px; color: var(--ink-strong); background: var(--control-bottom); border: 1px solid var(--control-border); }
.notify input::placeholder { color: var(--mute); }
.notify button {
  height: 38px; padding: 0 14px; border-radius: 999px; font: inherit; font-size: 13px; font-weight: 600;
  color: var(--ink-strong); cursor: pointer; white-space: nowrap;
  background: linear-gradient(180deg, var(--control-top), var(--control-bottom));
  border: 1px solid var(--control-border); box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
}
.notify button:hover { border-color: var(--ka); }
.notify.is-done { align-items: center; color: var(--teal); font-size: 14px; font-weight: 600; min-height: 38px; }
.notify.is-error { color: #f0a060; font-size: 13px; }
@media (max-width: 980px) {
  .kit-grid { grid-template-columns: repeat(2, 1fr); }
  .kit-ocean { grid-column: span 2; grid-row: auto; grid-template-rows: minmax(260px, 40vw) auto; }
}
@media (max-width: 600px) {
  .kit-grid { grid-template-columns: 1fr; }
  .kit-ocean { grid-column: auto; grid-template-rows: auto 1fr; }
  .kit-ocean .kit-face { aspect-ratio: 16 / 9; height: auto; }
  .kit-ocean .kit-meta { grid-template-columns: 1fr; }
  .kit-ocean .kit-cta { grid-column: 1; grid-row: auto; flex-direction: row; align-items: center; margin-top: 10px; }
}

/* ─── Console: one surface, regions divided by hairlines, not a grid of cards */
.console {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--hairline); border: 1px solid var(--hairline); border-radius: var(--r-card); overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.09), 0 40px 80px -30px rgba(0,0,0,.7), 0 0 0 1px rgba(0,0,0,.35);
}
.region {
  background: linear-gradient(180deg, var(--panel-top), var(--panel-bottom));
  padding: clamp(20px, 2.2vw, 28px);
  display: grid; gap: 10px; align-content: start;
}
.region p { color: var(--mute); font-size: .95em; }
.region .caption { margin-top: 6px; }
.region .clip + .caption { margin-top: 12px; }
.region-wide { grid-column: span 2; grid-template-columns: 1.25fr 1fr; column-gap: clamp(20px, 2.5vw, 36px); align-items: center; align-content: center; }
.region-wide .clip { grid-row: 1; }
.region-copy { display: grid; gap: 10px; }
.region-quiet { justify-content: start; }
.region-fine { font-size: .85em !important; padding-top: 8px; border-top: 1px solid rgba(24,71,111,.5); }
@media (max-width: 900px) {
  .console { grid-template-columns: repeat(2, 1fr); }
  .region-wide { grid-column: span 2; }
}
@media (max-width: 600px) {
  .console { grid-template-columns: 1fr; }
  .region-wide { grid-column: auto; grid-template-columns: 1fr; }
}

/* ─── Clip tile: silent loop; click for sound, full clip and the ring */
.clip {
  position: relative; aspect-ratio: 16 / 9; border-radius: var(--r-strip); overflow: hidden; cursor: pointer;
  background: var(--control-bottom); border: 1px solid rgba(24,71,111,.8);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
  transition: box-shadow .25s ease, border-color .25s ease;
}
.clip video { width: 100%; height: 100%; object-fit: cover; }
.clip-hear {
  position: absolute; left: 10px; bottom: 10px; height: 30px; padding: 0 12px 0 10px;
  display: inline-flex; align-items: center; gap: 7px;
  border-radius: 999px; border: 1px solid rgba(255,255,255,.18); cursor: pointer;
  background: rgba(3,16,31,.6); color: #eaf3ff; font: inherit; font-size: 12px; font-weight: 600;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  pointer-events: none; /* the whole tile is the button */
}
.clip-hear::before { content: ""; width: 0; height: 0; border-left: 8px solid var(--teal); border-top: 5px solid transparent; border-bottom: 5px solid transparent; }
.clip-ring { position: absolute; right: 10px; top: 10px; width: 30px; height: 30px; opacity: 0; transition: opacity .2s ease; transform: rotate(-90deg); }
.clip-ring circle { fill: rgba(3,16,31,.55); stroke: var(--teal); stroke-width: 2.5; }
.clip.is-live { border-color: var(--teal); box-shadow: inset 0 1px 0 rgba(255,255,255,.1), 0 0 30px -8px var(--teal); }
.clip.is-live .clip-hear { opacity: 0; }
.clip.is-live .clip-ring { opacity: 1; }

/* ─── Engine: the root-note readout */
.root-readout {
  aspect-ratio: 16 / 9; border-radius: var(--r-strip); overflow: hidden;
  background: var(--control-bottom); border: 1px solid rgba(24,71,111,.8);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08);
  display: grid; align-content: center; justify-items: center; gap: 6px; padding: 16px;
  background-image: repeating-linear-gradient(90deg, rgba(24,71,111,.35) 0 1px, transparent 1px 12.5%);
}
.root-note { font-size: clamp(40px, 4.5vw, 64px); color: var(--teal); line-height: 1; text-shadow: 0 0 24px rgba(95,214,200,.5); }
.root-meta { font-size: 13px; color: var(--mute); }
.root-meta .num { color: var(--ink-strong); }
.root-bar { position: relative; width: 70%; height: 4px; border-radius: 2px; background: #0d2238; margin-top: 10px; }
.root-bar i { position: absolute; left: var(--x); top: 50%; width: 10px; height: 10px; border-radius: 50%; transform: translate(-50%, -50%); background: var(--teal); box-shadow: 0 0 10px var(--teal); }

/* ─── Feature details: rings, segmented control, mixer */
.rings { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 8px; }
.ring { position: relative; margin: 0; display: grid; justify-items: center; gap: 4px; }
.ring svg { width: min(100%, 76px); transform: rotate(-90deg); }
.ring-track { fill: none; stroke: #0d2238; stroke-width: 4; }
.ring-arc { fill: none; stroke: var(--teal); stroke-width: 4; stroke-linecap: round; stroke-dasharray: calc(188.5 * var(--v) / 100) 188.5; filter: drop-shadow(0 0 4px rgba(95,214,200,.7)); }
.ring .readout { position: absolute; top: 27px; font-size: 13px; color: var(--ink-strong); }
.ring figcaption { font-size: 10px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--mute); }
.seg { display: inline-flex; margin-top: 6px; padding: 3px; border-radius: 999px; background: var(--control-bottom); border: 1px solid var(--control-border); justify-self: start; }
.seg span { padding: 6px 13px; border-radius: 999px; font-size: 12px; font-weight: 600; color: var(--mute); }
.seg .is-on { color: #fff; background: linear-gradient(180deg, #2a8ae0, var(--active)); box-shadow: inset 0 1px 0 rgba(255,255,255,.28); }
.mixer { list-style: none; margin: 6px 0 0; padding: 0; display: grid; gap: 10px; }
.mixer li { --acc: var(--c1); display: grid; grid-template-columns: 64px 1fr; align-items: center; gap: 12px; font-size: 12px; font-weight: 600; }
.mixer li i { display: block; height: 7px; border-radius: 4px; background: #0d2238; position: relative; overflow: hidden; }
.mixer li i::after { content: ""; position: absolute; inset: 0; width: calc(var(--l) * 100%); background: var(--acc); border-radius: 4px; box-shadow: 0 0 10px var(--acc); }

/* ─── At a glance: the NI-style spec table plus the kit list */
.glance-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; align-items: start; }
.glance-table { margin: 0; padding: 6px clamp(18px, 2.6vw, 32px); }
.glance-table > div { display: grid; grid-template-columns: 150px 1fr; gap: 16px; padding: 14px 0; border-bottom: 1px solid rgba(24,71,111,.5); align-items: baseline; }
.glance-table > div:last-child { border-bottom: 0; }
.glance-table dt { color: var(--mute); font-weight: 600; font-size: 14px; }
.glance-table dd { margin: 0; color: var(--ink-strong); font-size: 15px; }
.glance-table dd .readout { font-size: 18px; color: var(--teal); }
.glance-note { color: var(--mute); font-size: 13px; margin-left: 6px; }
.glance-kits { padding: clamp(18px, 2.4vw, 26px); display: grid; gap: 14px; align-content: start; }
.kit-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 6px 14px; }
.kit-list li { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; padding: 7px 0; border-bottom: 1px solid rgba(24,71,111,.4); font-size: 14px; color: var(--ink-strong); }
.kit-list li .readout { font-size: 12px; color: var(--teal); }
@media (max-width: 900px) { .glance-grid { grid-template-columns: 1fr; } }
@media (max-width: 480px) { .glance-table > div { grid-template-columns: 1fr; gap: 4px; } .kit-list { grid-template-columns: 1fr; } }

/* ─── Buy */
.buy-plate {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(24px, 4vw, 64px); align-items: center;
  padding: clamp(28px, 4vw, 56px);
  background: radial-gradient(70% 90% at 20% 0%, rgba(10,122,224,.45), transparent 70%), linear-gradient(180deg, var(--panel-top), var(--panel-bottom));
}
.buy-copy { display: grid; gap: 14px; justify-items: start; }
.buy-copy h2 { font-size: clamp(52px, 7vw, 100px); font-weight: 700; letter-spacing: -0.02em; line-height: .95; }
.buy-price { display: flex; align-items: baseline; gap: 10px; font-size: clamp(28px, 3vw, 40px); color: var(--ink-strong); }
.buy-once { font-size: 16px; color: var(--mute); }
.buy-fine { font-size: 13px; color: var(--mute); max-width: 40ch; }
.buy-list { list-style: none; margin: 0; padding: 0; display: grid; }
.buy-list li { padding: 16px 0 16px 30px; border-bottom: 1px solid rgba(24,71,111,.5); position: relative; color: var(--ink-strong); }
.buy-list li:last-child { border-bottom: 0; }
.buy-list li::before { content: ""; position: absolute; left: 4px; top: 25px; width: 8px; height: 8px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 10px var(--teal); }
@media (max-width: 760px) { .buy-plate { grid-template-columns: 1fr; } }

/* ─── FAQ */
.faq-list { display: grid; gap: 10px; max-width: 760px; }
details { border-radius: var(--r-strip); border: 1px solid var(--hairline); background: linear-gradient(180deg, var(--panel-top), var(--panel-bottom)); box-shadow: inset 0 1px 0 rgba(255,255,255,.08); }
summary { cursor: pointer; list-style: none; padding: 18px 22px; font-weight: 600; color: var(--ink-strong); display: flex; align-items: center; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: ""; width: 10px; height: 10px; flex: none; border-right: 2px solid var(--teal); border-bottom: 2px solid var(--teal); transform: rotate(45deg); transition: transform .2s ease; margin-right: 4px; }
details[open] summary::after { transform: rotate(-135deg); }
details p { padding: 0 22px 20px; color: var(--ink); }

/* ─── Footer */
.foot { max-width: var(--wrap); margin: var(--space) auto 0; padding: 48px var(--gutter) 56px; border-top: 1px solid rgba(24,71,111,.5); display: grid; gap: 12px; color: var(--mute); font-size: 14px; }
.foot img { height: 18px; width: auto; opacity: .8; }
.foot a { color: var(--ink); }
.foot-fine { font-size: 12px; }

@media (prefers-reduced-motion: reduce) {
  .pad, .btn, .kit-face, .clip { transition: none; }
}