/* ============================================================
   NovaBand — "white & clean" design system
   Palette sampled from the ISIF 2026 deck:
     primary red  #7b2021   deepest wine #4b070f
     rose dots    #c9a3a3   cream        #f3e3d3
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root {
  --red:        #7b2021;
  --red-deep:   #4b070f;
  --red-mid:    #962a2c;
  --red-soft:   #f8eeee;
  --red-tint:   #fbf6f6;
  --rose:       #c9a3a3;
  --cream:      #f3e3d3;

  --bg:         #ffffff;
  --bg-soft:    #faf8f7;
  --surface:    #ffffff;
  --ink:        #1c1215;
  --ink-2:      #5d5256;
  --ink-3:      #948a8d;
  --line:       #efe9e8;
  --line-2:     #e4dcdb;

  /* aliases read by the charts in js/app.js — keep literal hex values */
  --brand-300:  #c9a3a3;
  --brand-400:  #a33a3c;
  --brand-500:  #7b2021;
  --brand-600:  #6a1a1c;
  --brand-700:  #5a1016;
  --brand-800:  #4b070f;
  --brand-900:  #33050a;
  --text:       #1c1215;
  --text-2:     #5d5256;

  --ok:   #1f9d55;
  --warn: #d98a16;
  --bad:  #d0342c;

  --shadow-xs: 0 1px 2px rgba(75, 7, 15, .05);
  --shadow-sm: 0 1px 2px rgba(75, 7, 15, .04), 0 6px 18px rgba(75, 7, 15, .05);
  --shadow-md: 0 2px 4px rgba(75, 7, 15, .04), 0 14px 38px rgba(75, 7, 15, .08);
  --shadow-lg: 0 4px 10px rgba(75, 7, 15, .05), 0 30px 70px rgba(75, 7, 15, .12);

  --r-sm: 12px;
  --r-md: 18px;
  --r-lg: 26px;
  --r-xl: 36px;
  --r-pill: 999px;

  --ease: cubic-bezier(.22, 1, .36, 1);
  --maxw: 1200px;
  --nav-h: 72px;

  --font: "Poppins", ui-sans-serif, system-ui, "Segoe UI", Roboto, sans-serif;
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;

  color-scheme: light;
}

[data-theme="dark"] {
  --bg:        #120c0e;
  --bg-soft:   #170f12;
  --surface:   #1c1316;
  --ink:       #f6eded;
  --ink-2:     #c2b3b6;
  --ink-3:     #8f8083;
  --line:      #2c2023;
  --line-2:    #3a2a2e;
  --red:       #d4575c;
  --red-mid:   #e0777b;
  --red-soft:  #2a1518;
  --red-tint:  #1f1215;
  --cream:     #3a2a24;

  --brand-400: #e0777b;
  --brand-500: #d4575c;
  --brand-800: #7b2021;
  --text:      #f6eded;
  --text-2:    #c2b3b6;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, .3);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .3), 0 6px 18px rgba(0, 0, 0, .25);
  --shadow-md: 0 2px 4px rgba(0, 0, 0, .3), 0 14px 38px rgba(0, 0, 0, .35);
  --shadow-lg: 0 4px 10px rgba(0, 0, 0, .35), 0 30px 70px rgba(0, 0, 0, .45);
  color-scheme: dark;
}

/* ---------- 2. Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 20px); }
body {
  margin: 0; font-family: var(--font); font-size: 15.5px; line-height: 1.7;
  background: var(--bg); color: var(--ink);
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
  transition: background .4s var(--ease), color .4s var(--ease);
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; color: inherit; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.12; letter-spacing: -.035em; margin: 0 0 .5em; color: var(--ink); }
h1 { font-size: clamp(2.5rem, 6vw, 4.6rem); font-weight: 800; letter-spacing: -.05em; }
h2 { font-size: clamp(1.9rem, 4vw, 3.05rem); font-weight: 800; letter-spacing: -.045em; }
h3 { font-size: clamp(1.08rem, 1.6vw, 1.28rem); letter-spacing: -.02em; }
h4 { font-size: 1rem; letter-spacing: -.01em; }
p  { margin: 0 0 1rem; color: var(--ink-2); }
::selection { background: var(--red); color: #fff; }
:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; border-radius: 6px; }

.container { width: min(100% - 2.5rem, var(--maxw)); margin-inline: auto; }
.section { padding: clamp(72px, 9vw, 120px) 0; position: relative; overflow-x: clip; }
.section.soft { background: var(--bg-soft); }
.section.tint { background: var(--red-tint); }
.grid { display: grid; gap: clamp(16px, 2vw, 26px); }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }
.g-5 { grid-template-columns: repeat(5, 1fr); }
.g-1-2 { grid-template-columns: 1fr 2fr; }
.g-5-3 { grid-template-columns: 1.25fr .75fr; }
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.between { justify-content: space-between; }
.center { text-align: center; }
.mb-0 { margin-bottom: 0 !important; }
.muted { color: var(--ink-3); }
.mono { font-family: var(--mono); }
.serif { font-family: var(--serif); font-style: italic; font-weight: 500; letter-spacing: -.02em; }
.red { color: var(--red); }

/* ---------- 3. Type bits ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 18px;
  padding: 6px 14px 6px 10px; border-radius: var(--r-pill);
  background: var(--red-soft); color: var(--red);
  font-size: .72rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--red); animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .35; transform: scale(.7); } }
.lead { font-size: clamp(1rem, 1.3vw, 1.12rem); max-width: 62ch; color: var(--ink-2); }
.sec-head { max-width: 760px; margin-bottom: clamp(36px, 4.5vw, 60px); }
.sec-head.center { margin-inline: auto; }
.sec-head.center .lead { margin-inline: auto; }
.kicker-num { font-family: var(--mono); font-size: .72rem; color: var(--red); letter-spacing: .12em; font-weight: 600; }

/* ---------- 4. Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 24px; border-radius: var(--r-pill); border: 1px solid transparent;
  font-weight: 600; font-size: .92rem; cursor: pointer; white-space: nowrap;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s, color .25s, border-color .25s;
}
.btn svg { width: 17px; height: 17px; }
.btn-primary { background: var(--red); color: #fff; box-shadow: 0 8px 22px rgba(123, 32, 33, .25); }
.btn-primary:hover { background: var(--red-deep); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(123, 32, 33, .32); }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--red); color: var(--red); transform: translateY(-2px); }
.btn-soft { background: var(--red-soft); color: var(--red); }
.btn-soft:hover { background: var(--red); color: #fff; }
.btn-sm { padding: 8px 16px; font-size: .82rem; }
.btn:active { transform: translateY(0); }

/* ---------- 5. Navigation ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; height: var(--nav-h); z-index: 100;
  display: flex; align-items: center;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(16px) saturate(160%); -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-bottom: 1px solid transparent; transition: border-color .3s, box-shadow .3s;
}
.nav.scrolled { border-bottom-color: var(--line); box-shadow: var(--shadow-xs); }
.nav-inner { width: min(100% - 2.5rem, var(--maxw)); margin-inline: auto; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { width: 36px; height: 36px; border-radius: 11px; display: grid; place-items: center; background: var(--red); box-shadow: 0 6px 16px rgba(123, 32, 33, .3); }
.brand-mark svg { width: 20px; height: 20px; }
.brand-name { font-weight: 800; font-size: 1.12rem; letter-spacing: -.04em; white-space: nowrap; }
.brand-name b { color: var(--red); font-weight: 800; }
.nav-links { display: flex; gap: 2px; }
.nav-links a { padding: 8px 13px; border-radius: var(--r-pill); font-size: .86rem; font-weight: 500; color: var(--ink-2); transition: .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--red); background: var(--red-soft); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.icon-btn {
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line-2);
  background: var(--surface); display: grid; place-items: center; cursor: pointer; color: var(--ink-2); transition: .2s;
}
.icon-btn:hover { color: var(--red); border-color: var(--red); }
.icon-btn svg { width: 18px; height: 18px; }
.icon-sun { display: none; }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
.burger { display: none; }
.burger span { display: block; width: 16px; height: 2px; margin: 3px auto; background: currentColor; border-radius: 2px; transition: .3s var(--ease); }
.burger.open span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* ---------- 6. Hero ---------- */
.hero { position: relative; min-height: 100svh; padding: calc(var(--nav-h) + 48px) 0 64px; display: flex; align-items: center; overflow: hidden; }
#wave-canvas { position: absolute; inset: auto 0 0 0; width: 100%; height: 62%; z-index: 0; pointer-events: none; }
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.08fr .92fr; gap: 40px; align-items: center; }
.hero h1 { margin-bottom: .18em; }
.hero h1 .dash { color: var(--red); }
.hero-title { font-size: clamp(1rem, 1.5vw, 1.2rem); font-weight: 600; color: var(--ink); letter-spacing: -.01em; max-width: 34ch; margin-bottom: 14px; line-height: 1.45; }
.hero-stats { display: grid; grid-template-columns: repeat(3, auto); gap: clamp(18px, 3vw, 40px); margin-top: 38px; justify-content: start; }
.hero-stats .n { font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-weight: 800; letter-spacing: -.04em; color: var(--red); line-height: 1; }
.hero-stats .l { font-size: .74rem; color: var(--ink-3); margin-top: 6px; letter-spacing: .02em; }
.hero-visual { position: relative; display: grid; place-items: center; min-height: 460px; }
.hero-blob {
  position: absolute; width: min(88%, 460px); aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--red-soft), transparent 70%);
}
.hero-product { position: relative; width: min(78%, 400px); filter: drop-shadow(0 40px 50px rgba(75, 7, 15, .28)); animation: floaty 7s ease-in-out infinite; }
@keyframes floaty { 0%, 100% { transform: translateY(0) rotate(-2deg); } 50% { transform: translateY(-14px) rotate(1deg); } }
.hero-deco { position: absolute; pointer-events: none; }
.hero-deco.pills { width: 44%; right: -6%; top: -4%; opacity: .95; animation: floaty 9s ease-in-out infinite reverse; }
.chip {
  position: absolute; z-index: 3; display: flex; align-items: center; gap: 10px;
  padding: 10px 14px 10px 10px; border-radius: 16px;
  background: color-mix(in srgb, var(--surface) 88%, transparent); backdrop-filter: blur(12px);
  border: 1px solid var(--line); box-shadow: var(--shadow-md); font-size: .8rem; font-weight: 600;
  animation: floaty 6s ease-in-out infinite;
}
.chip img { width: 34px; height: 34px; }
.chip small { display: block; font-weight: 500; color: var(--ink-3); font-size: .68rem; }
.chip-1 { left: -2%; top: 16%; }
.chip-2 { right: 0; bottom: 20%; animation-delay: -2s; }
.chip-3 { left: 6%; bottom: 4%; animation-delay: -4s; }

/* ---------- 6b. Hero film + carousel ----------
   The use-case film plays behind the hero, softly blurred and darkened
   so the slides on top stay readable in both themes. */
.hero-film { padding: calc(var(--nav-h) + 36px) 0 56px; background: #16080c; isolation: isolate; color: #fff; }
.hero-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.hero-bg-video {
  position: absolute; inset: -48px; width: calc(100% + 96px); height: calc(100% + 96px);
  object-fit: cover; filter: blur(9px) saturate(1.12) brightness(.92); transform: scale(1.03);
}
.hero-bg-shade {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(24, 6, 10, .86) 0%, rgba(40, 8, 14, .64) 46%, rgba(40, 8, 14, .32) 100%),
    linear-gradient(to top, rgba(18, 6, 9, .72) 0%, transparent 38%);
}
.hero-film h1, .hero-film .hc-h, .hero-film .hero-title { color: #fff; }
.hero-film h1 .dash { color: #ec8f93; }
.hero-film .lead { color: rgba(255, 255, 255, .82); }
.hero-film .lead strong, .hero-film .lead em { color: #fff; }
.hero-film .eyebrow { background: rgba(255, 255, 255, .12); color: #fff; backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.hero-film .eyebrow .dot { background: #ff8f95; }
.hero-film .hero-stats .n { color: #f6c6c8; }
.hero-film .hero-stats .l { color: rgba(255, 255, 255, .66); }
.hero-film .hero-blob { background: radial-gradient(circle at 40% 35%, rgba(201, 163, 163, .32), transparent 68%); }
.hero-film .hero-product, .hc-art { filter: drop-shadow(0 34px 44px rgba(0, 0, 0, .45)); }
.hero-film .chip { color: var(--ink); }
.btn-glass { background: rgba(255, 255, 255, .12); color: #fff; border-color: rgba(255, 255, 255, .34); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.btn-glass:hover { background: rgba(255, 255, 255, .22); border-color: #fff; transform: translateY(-2px); }

.hc { position: relative; z-index: 2; }
.hc-track { display: grid; }
.hc-slide {
  grid-area: 1 / 1; opacity: 0; visibility: hidden; transform: translateX(32px);
  transition: opacity .7s var(--ease), transform .8s var(--ease), visibility 0s linear .8s;
}
.hc-slide.is-active { opacity: 1; visibility: visible; transform: none; transition: opacity .7s var(--ease), transform .8s var(--ease), visibility 0s; }
.hc-slide .hc-text > * { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .7s var(--ease); }
.hc-slide.is-active .hc-text > * { opacity: 1; transform: none; }
.hc-slide.is-active .hc-text > :nth-child(2) { transition-delay: .08s; }
.hc-slide.is-active .hc-text > :nth-child(3) { transition-delay: .16s; }
.hc-slide.is-active .hc-text > :nth-child(4) { transition-delay: .24s; }
.hc-slide.is-active .hc-text > :nth-child(n+5) { transition-delay: .32s; }
.hc-h { font-size: clamp(2.1rem, 4.8vw, 3.7rem); letter-spacing: -.045em; max-width: 15ch; margin-bottom: .4em; }
.hc-h .serif { color: #f6c6c8; }
.hc-cta { margin-top: 28px; }
.hc-facts { display: flex; flex-wrap: wrap; gap: clamp(20px, 3vw, 44px); margin-top: 26px; }
.hc-facts b { display: block; font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-weight: 800; letter-spacing: -.04em; color: #f6c6c8; line-height: 1.05; }
.hc-facts span { font-size: .76rem; color: rgba(255, 255, 255, .66); }
.hc-art { position: relative; width: min(86%, 440px); animation: floaty 7s ease-in-out infinite; }
.hc-art.icon { width: min(62%, 330px); }
.hc-art.mascot { width: auto; max-width: 92%; max-height: min(64vh, 560px); }

.hc-controls { display: flex; align-items: center; gap: 12px; margin-top: clamp(26px, 4vw, 44px); }
.hc-btn {
  width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; cursor: pointer;
  background: rgba(255, 255, 255, .1); color: #fff; border: 1px solid rgba(255, 255, 255, .3);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); transition: background .2s, border-color .2s;
}
.hc-btn:hover { background: rgba(255, 255, 255, .22); border-color: #fff; }
.hc-btn svg { width: 18px; height: 18px; }
.hc-pause { margin-left: 4px; }
.hc-pause .i-play, .hc.is-paused .hc-pause .i-pause { display: none; }
.hc.is-paused .hc-pause .i-play { display: block; }
.hc-dots { display: flex; gap: 6px; }
.hc-dot { width: 40px; height: 28px; padding: 0; border: 0; background: none; cursor: pointer; position: relative; transition: width .4s var(--ease); }
.hc-dot::before, .hc-dot span { content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 4px; margin-top: -2px; border-radius: 4px; }
.hc-dot::before { background: rgba(255, 255, 255, .28); }
.hc-dot span { background: #fff; transform: scaleX(0); transform-origin: left; }
.hc-dot.is-active { width: 64px; }
.hero-film :focus-visible { outline-color: #fff; }
@media (prefers-reduced-motion: reduce) {
  .hc-slide, .hc-slide .hc-text > * { transition: none !important; transform: none !important; }
}

/* ---------- 7. Logos ---------- */
.logos { padding: 34px 0; border-block: 1px solid var(--line); background: var(--bg); }
.logos .row { justify-content: center; gap: clamp(26px, 5vw, 64px); }
.logos .label { font-size: .7rem; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-3); font-weight: 600; }
.logos img { height: 38px; width: auto; object-fit: contain; filter: grayscale(1) contrast(1.05); opacity: .72; transition: .3s; }
.logos img:hover { filter: none; opacity: 1; }
[data-theme="dark"] .logos img { filter: grayscale(1) invert(1) brightness(1.4); opacity: .55; }

/* ---------- 8. Cards ---------- */
.card {
  position: relative; background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--r-lg); padding: clamp(22px, 2.3vw, 30px); box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
}
.card.hover:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--line-2); }
.card.red { background: var(--red); border-color: var(--red); color: #fff; }
.card.red p, .card.red h3, .card.red h4 { color: #fff; }
.card.red p { opacity: .85; }
.card.deep { background: var(--red-deep); border-color: var(--red-deep); }
.card.flat { box-shadow: none; }
.card h3 { margin-bottom: .4em; }
.card p:last-child { margin-bottom: 0; }
.ic3d { width: 88px; height: 88px; object-fit: contain; margin: -6px 0 12px -8px; }
.ic3d.lg { width: 128px; height: 128px; }
.ic3d.xl { width: 170px; height: 170px; }
.tag {
  display: inline-block; padding: 4px 11px; border-radius: var(--r-pill);
  background: var(--red-soft); color: var(--red); font-size: .7rem; font-weight: 600; letter-spacing: .04em;
}
.card.red .tag { background: rgba(255, 255, 255, .16); color: #fff; }

/* ---------- 9. Problem ---------- */
.big-stat { display: flex; flex-direction: column; justify-content: space-between; }
.big-stat .n { font-size: clamp(3.6rem, 8vw, 6rem); font-weight: 800; letter-spacing: -.06em; line-height: .9; margin: 14px 0 12px; }
.pain { text-align: center; padding: 20px 18px 22px; }
.pain img { width: 100%; max-width: 150px; aspect-ratio: 1; object-fit: contain; margin: 0 auto 12px; }
.pain h4 { margin: 0; font-size: .95rem; }
.quote-card { border-left: 4px solid var(--red); border-radius: var(--r-md); }

/* ---------- 10. Research & State of the art ---------- */
.qa-list { list-style: none; padding: 0; margin: 0; counter-reset: q; }
.qa-list li { position: relative; padding: 16px 0 16px 52px; border-top: 1px solid var(--line); color: var(--ink-2); }
.qa-list li:first-child { border-top: 0; }
.qa-list li::before {
  counter-increment: q; content: counter(q, decimal-leading-zero);
  position: absolute; left: 0; top: 15px; width: 36px; height: 36px; border-radius: 11px;
  display: grid; place-items: center; background: var(--red-soft); color: var(--red);
  font-family: var(--mono); font-size: .78rem; font-weight: 600;
}
.card.red .qa-list li { border-color: rgba(255, 255, 255, .16); color: rgba(255, 255, 255, .9); }
.card.red .qa-list li::before { background: rgba(255, 255, 255, .14); color: #fff; }

.sota { display: flex; flex-direction: column; padding: 0; overflow: hidden; }
.sota .who { padding: 14px 22px; background: var(--red); color: #fff; font-weight: 700; font-size: .9rem; letter-spacing: -.01em; }
.sota .who small { display: block; font-weight: 500; opacity: .75; font-size: .72rem; }
.sota .body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.sota .finding { font-size: .9rem; color: var(--ink-2); margin: 0; }
.sota .arrow { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--red-soft); color: var(--red); }
.sota .gap { margin: 0; font-size: .88rem; padding: 12px 14px; border-radius: var(--r-sm); background: var(--red-tint); color: var(--ink); border: 1px dashed var(--line-2); }
.sota .gap b { color: var(--red); }
.answer { display: grid; grid-template-columns: auto 1fr; gap: 26px; align-items: center; }
.answer ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.answer li { display: flex; gap: 12px; align-items: flex-start; color: #fff; }
.answer li svg { flex: 0 0 20px; width: 20px; height: 20px; margin-top: 3px; }

/* ---------- 11. Solution ---------- */
.solution { display: grid; grid-template-columns: 1fr 1fr .8fr; gap: 20px; align-items: stretch; }
.solution .phone-col { grid-row: 1 / span 2; grid-column: 3; display: grid; place-items: center; background: var(--red-tint); border-radius: var(--r-xl); position: relative; overflow: hidden; }
.solution .phone-col img { width: 78%; filter: drop-shadow(0 30px 40px rgba(75, 7, 15, .25)); }

/* ---------- 12. Flow (PPG) + IMU ---------- */
.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; position: relative; counter-reset: s; }
.flow .step { text-align: center; padding: 22px 12px 20px; position: relative; }
.flow .step img { width: 100%; max-width: 130px; aspect-ratio: 1; object-fit: contain; margin: 0 auto 8px; transition: transform .5s var(--ease); }
.flow .step:hover img { transform: translateY(-6px) scale(1.04); }
.flow .step h4 { margin: 0 0 4px; }
.flow .step p { font-size: .8rem; margin: 0; }
.flow .step::before {
  counter-increment: s; content: counter(s);
  position: absolute; top: 14px; left: 14px; width: 26px; height: 26px; border-radius: 50%;
  background: var(--red); color: #fff; font-size: .74rem; font-weight: 700; display: grid; place-items: center;
}
.flow .step:not(:last-child)::after {
  content: ""; position: absolute; top: 40%; right: -12px; width: 10px; height: 10px; z-index: 2;
  border-top: 2px solid var(--red); border-right: 2px solid var(--red); transform: rotate(45deg);
}
.imu-card { text-align: left; }
.imu-card img { width: 150px; height: 150px; object-fit: contain; margin: -10px 0 4px -14px; }
.imu-card .what { display: inline-block; margin-top: 6px; font-size: .72rem; font-weight: 600; color: var(--red); letter-spacing: .06em; text-transform: uppercase; }

/* ---------- 13. Product / 3D viewer ---------- */
.viewer {
  position: relative; border-radius: var(--r-xl); overflow: hidden; min-height: 460px;
  background: radial-gradient(ellipse at 50% 40%, var(--surface), var(--bg-soft) 70%);
  border: 1px solid var(--line); box-shadow: var(--shadow-sm);
}
#viewer-canvas { position: absolute; inset: 0; width: 100%; height: 100%; cursor: grab; touch-action: none; }
#viewer-canvas:active { cursor: grabbing; }
.viewer-hint { position: absolute; left: 50%; bottom: 16px; transform: translateX(-50%); font-size: .74rem; color: var(--ink-3); padding: 6px 14px; border-radius: var(--r-pill); background: var(--surface); border: 1px solid var(--line); pointer-events: none; white-space: nowrap; }
.viewer-fallback { position: absolute; inset: 0; display: grid; place-items: center; }
.viewer-fallback img { width: 70%; }
.spec { display: grid; gap: 0; }
.spec div { display: flex; justify-content: space-between; gap: 16px; padding: 13px 0; border-bottom: 1px solid var(--line); font-size: .9rem; }
.spec div:last-child { border-bottom: 0; }
.spec span:first-child { color: var(--ink-3); }
.spec span:last-child { font-weight: 600; text-align: right; }
.explode { position: relative; }
.explode img { width: 100%; max-width: 440px; margin: 0 auto; }
.explode .lbl {
  position: absolute; font-size: .74rem; font-weight: 600; padding: 5px 11px; border-radius: var(--r-pill);
  background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow-xs); white-space: nowrap;
}
.explode .lbl::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--red); margin-right: 7px; vertical-align: 1px; }

/* ---------- 14. Software (dashboard) ---------- */
.software { display: grid; grid-template-columns: .9fr 1.1fr; gap: 50px; align-items: center; }
.phone-stage { position: relative; display: grid; place-items: center; padding: 30px 0; }
.phone-stage::before { content: ""; position: absolute; width: 78%; aspect-ratio: 1; border-radius: 50%; background: var(--red-soft); }
.phone-stage img.phone { position: relative; width: min(68%, 330px); filter: drop-shadow(0 40px 50px rgba(75, 7, 15, .25)); }
.feat-list { display: grid; gap: 12px; }
.feat { display: grid; grid-template-columns: 58px 1fr; gap: 14px; align-items: center; padding: 14px 16px; border-radius: var(--r-md); border: 1px solid var(--line); background: var(--surface); transition: .3s var(--ease); }
.feat:hover { border-color: var(--rose); transform: translateX(4px); }
.feat img { width: 58px; height: 58px; object-fit: contain; }
.feat h4 { margin: 0 0 2px; font-size: .95rem; }
.feat p { margin: 0; font-size: .84rem; }

/* ---------- 15. Timeline ---------- */
.timeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; position: relative; }
.timeline::before { content: ""; position: absolute; left: 6%; right: 6%; top: 34px; height: 2px; background: repeating-linear-gradient(90deg, var(--rose) 0 8px, transparent 8px 16px); }
.stage { position: relative; padding-top: 72px; }
.stage .num { position: absolute; top: 12px; left: 22px; width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; background: var(--red); color: #fff; font-weight: 800; box-shadow: 0 0 0 7px var(--bg-soft); }
.stage h3 { font-family: var(--serif); font-style: italic; font-weight: 600; letter-spacing: -.02em; }
.stage ul { margin: 12px 0 0; padding-left: 18px; color: var(--ink-2); font-size: .88rem; }
.stage li { margin-bottom: 5px; }

/* ---------- 16. Results ---------- */
.result-num { font-size: clamp(2.3rem, 4vw, 3.5rem); white-space: nowrap; font-weight: 800; letter-spacing: -.06em; line-height: 1; color: var(--red); }
.result-num small { font-size: .38em; letter-spacing: -.02em; color: var(--ink-3); font-weight: 600; }
.meter { position: relative; height: 14px; border-radius: 99px; background: var(--line); overflow: hidden; margin: 18px 0 8px; }
.meter i { position: absolute; inset: 0 auto 0 0; border-radius: 99px; background: linear-gradient(90deg, var(--rose), var(--red)); width: 0; transition: width 1.6s var(--ease); }
.meter-scale { display: flex; justify-content: space-between; font-size: .72rem; color: var(--ink-3); }
.photo-card { padding: 0; overflow: hidden; }
.photo-card img { width: 100%; height: 100%; object-fit: cover; min-height: 260px; }
.photo-card figcaption { position: absolute; left: 16px; bottom: 16px; padding: 7px 13px; border-radius: var(--r-pill); background: rgba(255, 255, 255, .92); color: var(--red-deep); font-size: .76rem; font-weight: 600; }

/* ---------- 17. Market ---------- */
.tam { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; }
.funnel { display: grid; gap: 14px; }
.funnel .lvl { display: grid; grid-template-columns: 96px 1fr auto; gap: 18px; align-items: center; padding: 18px 22px; border-radius: var(--r-lg); color: #fff; position: relative; overflow: hidden; }
.funnel .lvl:nth-child(1) { background: var(--red-deep); }
.funnel .lvl:nth-child(2) { background: var(--red); margin-inline: 7%; }
.funnel .lvl:nth-child(3) { background: var(--red-mid); margin-inline: 14%; }
.funnel .k { font-weight: 800; font-size: 1.4rem; letter-spacing: -.03em; }
.funnel .d { font-size: .85rem; opacity: .9; line-height: 1.45; }
.funnel .v { font-weight: 800; font-size: 1.7rem; letter-spacing: -.04em; font-family: var(--font); }
.chart-box { padding: 26px 26px 18px; }
.chart-legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: .78rem; color: var(--ink-2); margin-bottom: 10px; }
.chart-legend i { display: inline-block; width: 18px; height: 3px; border-radius: 3px; margin-right: 7px; vertical-align: middle; }
#bep-chart { width: 100%; height: auto; display: block; }
#bep-chart .grid-l { stroke: var(--line); }
#bep-chart .axis-t { fill: var(--ink-3); font-size: 11px; font-family: var(--font); }

/* ---------- 18. Partners / Conclusion ---------- */
.partner { display: flex; align-items: center; gap: 18px; }
.partner img { width: 84px; height: 84px; object-fit: contain; }
.concl { display: grid; grid-template-columns: 70px 1fr; gap: 18px; align-items: start; }
.concl .n { font-family: var(--serif); font-style: italic; font-size: 2.4rem; color: var(--red); line-height: 1; }

/* ---------- 19. Showreel ---------- */
.reel { border-radius: var(--r-xl); overflow: hidden; position: relative; background: #0f0a0c; box-shadow: var(--shadow-lg); }
.reel video { width: 100%; display: block; aspect-ratio: 16 / 9; object-fit: cover; }
.reel-bar { position: absolute; left: 0; right: 0; bottom: 0; display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 18px 22px; background: linear-gradient(to top, rgba(15, 10, 12, .75), transparent); }
.reel-bar span { color: #fff; font-size: .82rem; font-weight: 500; opacity: .9; }
.usecase-top .reel { max-width: 1100px; margin: 0 auto; }
.reel-bar .btn-ghost { background: rgba(255, 255, 255, .92); border-color: transparent; color: var(--red-deep); }

/* ---------- 20. Team ---------- */
.team-photo { position: relative; border-radius: var(--r-xl); overflow: hidden; background: linear-gradient(180deg, var(--red-tint), var(--red-soft)); padding: 36px 20px 0; }
.team-photo img { width: 100%; max-width: 900px; margin: 0 auto; }
.team-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-top: 18px; }
.member { padding: 18px 14px; text-align: center; border-radius: var(--r-md); }
.member .pos { font-family: var(--mono); font-size: .66rem; color: var(--red); letter-spacing: .12em; }
.member .nm { font-weight: 700; font-size: .86rem; line-height: 1.35; margin: 6px 0 4px; letter-spacing: -.01em; }
.member .role { font-size: .74rem; color: var(--ink-3); line-height: 1.4; }

/* ---------- 21. CTA + footer ---------- */
.cta { position: relative; overflow: hidden; border-radius: var(--r-xl); padding: clamp(40px, 6vw, 76px); background: var(--red); color: #fff; }
.cta h2, .cta p { color: #fff; }
.cta p { opacity: .85; }
.cta .deco { position: absolute; right: -40px; bottom: -60px; width: 42%; max-width: 440px; opacity: .95; pointer-events: none; }
.cta .btn-ghost { background: #fff; color: var(--red-deep); border-color: #fff; }
.footer { padding: 56px 0 30px; border-top: 1px solid var(--line); }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 30px; margin-bottom: 36px; }
.foot-col h4 { font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 14px; }
.foot-col a { display: block; padding: 4px 0; font-size: .88rem; color: var(--ink-2); }
.foot-col a:hover { color: var(--red); }
.foot-col a.brand { display: flex; padding: 0; color: var(--ink); }
.foot-bottom { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; padding-top: 22px; border-top: 1px solid var(--line); font-size: .8rem; color: var(--ink-3); }

/* ---------- 22. Decorative dotted wave (deck motif) ---------- */
.dots-bg { position: absolute; pointer-events: none; z-index: 0; opacity: .55; }
.dots-bg.tr { top: 0; right: -10%; width: 55%; }
.dots-bg.bl { bottom: 0; left: -12%; width: 50%; transform: scaleX(-1); }
.section > .container { position: relative; z-index: 1; }

/* ---------- 23. Reveal ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: .001s !important; animation-iteration-count: 1 !important; }
}

/* ============================================================
   APP
   ============================================================ */
.app-body { background: var(--bg-soft); }
.app-shell { padding: calc(var(--nav-h) + 22px) 0 90px; min-height: 100svh; }
.app-grid { display: grid; grid-template-columns: 232px 1fr 320px; gap: 22px; align-items: start; }
/* grid items default to min-width:auto, so the 520px members table would
   stretch the whole panel past a phone screen; let the table scroll instead */
.app-grid > * { min-width: 0; }
.app-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 18px; flex-wrap: wrap; margin-bottom: 22px; }
.app-head h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); margin: 0 0 2px; }
.conn { display: inline-flex; align-items: center; gap: 7px; font-size: .78rem; color: var(--ink-2); padding: 6px 12px; border-radius: var(--r-pill); background: var(--surface); border: 1px solid var(--line); }
.led-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ink-3); display: inline-block; }
.led-dot.on { background: var(--ok); box-shadow: 0 0 0 3px rgba(31, 157, 85, .18); animation: pulse 1.8s infinite; }

.side { position: sticky; top: calc(var(--nav-h) + 22px); background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 12px; box-shadow: var(--shadow-xs); }
.side-item {
  display: flex; align-items: center; gap: 12px; width: 100%; padding: 11px 13px; margin-bottom: 3px;
  border: 0; border-radius: var(--r-sm); background: transparent; color: var(--ink-2);
  font-size: .88rem; font-weight: 500; text-align: left; cursor: pointer; transition: .2s;
}
.side-item svg { width: 19px; height: 19px; flex: 0 0 19px; }
.side-item:hover { color: var(--ink); background: var(--bg-soft); }
.side-item.active { background: var(--red); color: #fff; box-shadow: 0 6px 16px rgba(123, 32, 33, .25); }
.side-sep { height: 1px; background: var(--line); margin: 10px 4px; }
.device-mini { padding: 12px; border-radius: var(--r-md); background: var(--bg-soft); font-size: .78rem; }
.device-mini img { width: 64%; margin: 0 auto 6px; }
.device-mini .row { justify-content: space-between; padding: 3px 0; }

.panel { display: none; }
.panel.active { display: block; animation: fadeUp .45s var(--ease); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.tile { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 20px; box-shadow: var(--shadow-xs); }
.tile + .tile { margin-top: 18px; }
.tile-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; }
.tile-title { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: .95rem; letter-spacing: -.01em; }
.tile-title img { width: 34px; height: 34px; object-fit: contain; }
.tile-note { font-size: .7rem; color: var(--ink-3); letter-spacing: .06em; text-transform: uppercase; font-weight: 500; }
.stack { display: grid; gap: 18px; }

/* device hero card (mirrors the phone mockup) */
.dev-card { display: grid; grid-template-columns: 170px 1fr; gap: 22px; align-items: center; background: linear-gradient(135deg, var(--red-deep), var(--red)); color: #fff; border: 0; }
.dev-card img { width: 100%; filter: drop-shadow(0 14px 18px rgba(0, 0, 0, .35)); }
.dev-card h3 { color: #fff; font-size: 1.3rem; margin-bottom: 6px; }
.dev-card p { color: rgba(255, 255, 255, .78); font-size: .82rem; margin: 0; }
.batt { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: .85rem; margin-bottom: 6px; }
.batt i { width: 26px; height: 12px; border-radius: 3px; border: 1.5px solid rgba(255, 255, 255, .8); position: relative; }
.batt i::after { content: ""; position: absolute; inset: 1.5px; right: auto; width: calc(var(--lvl, 87%) - 3px); background: #4ade80; border-radius: 1px; }
.dev-card .btn { margin-top: 14px; background: rgba(255, 255, 255, .14); color: #fff; border-color: rgba(255, 255, 255, .22); }
.dev-card .btn:hover { background: #fff; color: var(--red-deep); }

.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.metric-grid.three { grid-template-columns: repeat(3, 1fr); }
.metric { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 16px; box-shadow: var(--shadow-xs); }
.metric .lbl { display: flex; align-items: center; gap: 8px; font-size: .74rem; color: var(--ink-3); font-weight: 500; margin-bottom: 8px; }
.metric .lbl img { width: 26px; height: 26px; object-fit: contain; }
.metric .val { font-size: 1.7rem; font-weight: 800; letter-spacing: -.04em; line-height: 1; }
.metric .val small { font-size: .5em; font-weight: 500; color: var(--ink-3); margin-left: 3px; letter-spacing: 0; }
.metric .delta { font-size: .72rem; margin-top: 7px; color: var(--red); font-weight: 500; }
.bar { height: 7px; border-radius: 99px; background: var(--line); margin-top: 12px; overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--rose), var(--red)); transition: width .8s var(--ease); }

#ecg, #hr24 { width: 100%; display: block; }
#ecg { height: 170px; }
#hr24 { height: 190px; }
.ecg-wrap { border-radius: var(--r-md); background: var(--bg-soft); padding: 10px; border: 1px solid var(--line); }

.ring-wrap { display: flex; align-items: center; gap: 18px; }
.ring { width: 96px; height: 96px; flex: 0 0 96px; position: relative; }
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring .t { fill: none; stroke: var(--line); stroke-width: 10; }
.ring .p { fill: none; stroke: var(--red); stroke-width: 10; stroke-linecap: round; transition: stroke-dashoffset 1s var(--ease); }
.sleep-bars { display: flex; gap: 4px; margin: 14px 0 8px; }
.sleep-bars i { height: 8px; border-radius: 4px; background: var(--rose); }
.sleep-bars i.deep { background: var(--red); }
.insight { display: flex; gap: 14px; align-items: center; background: var(--red-tint); border: 1px solid var(--line); }
.insight img { width: 60px; height: 60px; flex: 0 0 60px; }
.insight p { margin: 0; color: var(--ink); font-size: .9rem; }

/* live controls */
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 6px; border-radius: 99px; background: var(--line); outline: none; }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--red); border: 3px solid #fff; box-shadow: 0 2px 8px rgba(123, 32, 33, .35); cursor: pointer; }
input[type="range"]::-moz-range-thumb { width: 18px; height: 18px; border-radius: 50%; background: var(--red); border: 3px solid #fff; cursor: pointer; }

/* zones / loads / alerts (markup generated by js/app.js) */
.zone-bar { display: grid; gap: 9px; }
.zone { display: grid; grid-template-columns: 62px 1fr 42px; gap: 10px; align-items: center; font-size: .78rem; }
.zone .track { height: 9px; border-radius: 99px; background: var(--line); overflow: hidden; }
.zone .fill { height: 100%; border-radius: 99px; transition: width .8s var(--ease); }
.z1 .fill { background: #e9d7d7; } .z2 .fill { background: #d6b0b0; } .z3 .fill { background: #b87a7b; }
.z4 .fill { background: #962a2c; } .z5 .fill { background: #4b070f; }
.load-item { margin-bottom: 14px; }
.load-item .row { justify-content: space-between; font-size: .82rem; margin-bottom: 6px; }
.load-track { height: 8px; border-radius: 99px; background: var(--line); overflow: hidden; }
.load-fill { height: 100%; border-radius: 99px; background: linear-gradient(90deg, var(--rose), var(--red)); transition: width 1s var(--ease); }
.load-fill.warn { background: linear-gradient(90deg, #f3c27a, var(--warn)); }
.load-fill.danger { background: linear-gradient(90deg, #f19a93, var(--bad)); }
.alert { display: flex; gap: 12px; padding: 13px 14px; border-radius: var(--r-md); margin-bottom: 10px; font-size: .84rem; align-items: flex-start; background: var(--bg-soft); border: 1px solid var(--line); animation: fadeUp .4s var(--ease); }
.alert .ic { width: 28px; height: 28px; flex: 0 0 28px; border-radius: 9px; display: grid; place-items: center; color: #fff; font-size: .78rem; font-weight: 700; }
.alert.info .ic { background: #5b7fb0; } .alert.warn .ic { background: var(--warn); }
.alert.danger .ic { background: var(--bad); } .alert.good .ic { background: var(--ok); }
.alert.danger { background: #fdf3f2; border-color: #f6d4d1; }
[data-theme="dark"] .alert.danger { background: #2b1414; border-color: #4a2020; }
.alert strong { display: block; font-size: .86rem; margin-bottom: 2px; }
.alert p { margin: 0; font-size: .79rem; }
.alert .t { margin-left: auto; font-size: .68rem; color: var(--ink-3); white-space: nowrap; font-family: var(--mono); }

.rail { display: grid; gap: 18px; position: sticky; top: calc(var(--nav-h) + 22px); }
.ready-ring { width: 158px; height: 158px; margin: 4px auto 12px; position: relative; display: grid; place-items: center; }
.ready-ring svg { position: absolute; inset: 0; transform: rotate(-90deg); }
.gauge-val { font-size: 2.3rem; font-weight: 800; letter-spacing: -.05em; line-height: 1; }
.gauge-sub { font-size: .7rem; color: var(--ink-3); letter-spacing: .08em; text-transform: uppercase; margin-top: 4px; text-align: center; }

.spec-list { display: grid; gap: 0; }
.spec-row { display: flex; justify-content: space-between; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--line); font-size: .86rem; }
.spec-row:last-child { border-bottom: 0; }
.spec-row span:first-child { color: var(--ink-3); }
.spec-row span:last-child { font-weight: 600; text-align: right; }

.map-box { border-radius: var(--r-md); background: var(--bg-soft); border: 1px solid var(--line); padding: 8px; }
#map-svg { width: 100%; height: 280px; display: block; }
.runner-dot { cursor: pointer; }
.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: .74rem; color: var(--ink-3); margin-top: 10px; }
.legend i { width: 9px; height: 9px; border-radius: 50%; display: inline-block; margin-right: 6px; }
.tbl-wrap { overflow-x: auto; }
table.tbl { width: 100%; border-collapse: collapse; font-size: .84rem; min-width: 520px; }
table.tbl th { text-align: left; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); font-weight: 600; padding: 10px 12px; }
table.tbl td { padding: 12px; border-top: 1px solid var(--line); }
table.tbl tr:hover td { background: var(--red-tint); }
.pill { display: inline-block; padding: 3px 10px; border-radius: 99px; font-size: .7rem; font-weight: 600; }
.pill.ok { background: #e6f5ec; color: #1a7a44; } .pill.mid { background: #fdf1de; color: #a3650b; } .pill.bad { background: #fce7e5; color: #b3261e; }
[data-theme="dark"] .pill.ok { background: #13301f; color: #6fd79c; }
[data-theme="dark"] .pill.mid { background: #33250c; color: #f3c27a; }
[data-theme="dark"] .pill.bad { background: #3a1513; color: #f19a93; }

.toasts { position: fixed; right: 20px; bottom: 20px; z-index: 200; display: grid; gap: 10px; max-width: 330px; }
.toast { padding: 13px 16px; border-radius: var(--r-md); background: var(--ink); color: var(--bg); font-size: .84rem; box-shadow: var(--shadow-lg); animation: slideIn .4s var(--ease); }
@keyframes slideIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

/* in-app diagrams drawn by js/app.js */
.diagram { width: 100%; height: auto; display: block; }
.diagram text { font-family: var(--font); }
.dg-label { font-size: 9.5px; fill: var(--ink-3); }
.dg-value { font-size: 10px; font-weight: 600; font-family: var(--mono); }
.dg-limb { fill: var(--red-tint); stroke: var(--rose); stroke-width: 1.4; }
.dg-grid { stroke: var(--line-2); stroke-width: 1; fill: none; }
.dg-axis { stroke: var(--line-2); stroke-width: 1; }
.dg-poly { fill: rgba(123, 32, 33, .16); stroke: var(--red); stroke-width: 2; }
.dg-dot { fill: var(--red); }
.pulse-ring { animation: pulseRing 2s ease-out infinite; }
.pulse-ring:nth-child(2) { animation-delay: .66s; }
.pulse-ring:nth-child(3) { animation-delay: 1.33s; }
@keyframes pulseRing { from { r: 12px; opacity: .6; } to { r: 34px; opacity: 0; } }
.ill { width: 100%; height: auto; display: block; }

.account { display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: center; }
.avatar { width: 72px; height: 72px; border-radius: 50%; display: grid; place-items: center; background: var(--red); color: #fff; font-weight: 800; font-size: 1.4rem; }

/* ---------- 24. Responsive ---------- */
@media (max-width: 1140px) {
  .app-grid { grid-template-columns: 210px 1fr; }
  .rail { grid-column: 1 / -1; position: static; grid-template-columns: 1fr 1fr; }
  .team-grid { grid-template-columns: repeat(3, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .flow .step:nth-child(3)::after { display: none; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 920px) {
  .hero-inner, .software, .tam, .answer { grid-template-columns: 1fr; }
  .hero-visual { order: -1; min-height: 360px; }
  .hero-film .hero-inner { gap: 18px; }
  .hero-film .hero-visual { min-height: 0; }
  .hero-film .hero-product, .hc-art, .hc-art.icon, .hc-art.mascot { width: auto; max-width: 80%; max-height: 30vh; }
  .hero-bg-shade { background: linear-gradient(to bottom, rgba(24, 6, 10, .55), rgba(24, 6, 10, .86) 45%, rgba(18, 6, 9, .92)); }
  .hc-controls { justify-content: center; gap: 8px; }
  .hc-dots { gap: 4px; }
  .hc-dot { width: 26px; }
  .hc-dot.is-active { width: 42px; }
  .hc-btn { width: 40px; height: 40px; }
  .g-3, .g-4, .g-5 { grid-template-columns: repeat(2, 1fr); }
  .g-1-2, .g-5-3 { grid-template-columns: 1fr; }
  .solution { grid-template-columns: 1fr 1fr; }
  .solution .phone-col { grid-column: 1 / -1; grid-row: auto; padding: 30px 0; order: 5; }
  .solution .phone-col img { width: 44%; }
  .timeline { grid-template-columns: 1fr; }
  .timeline::before { display: none; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0; flex-direction: column; padding: 12px 1.25rem 20px;
    background: var(--bg); border-bottom: 1px solid var(--line); box-shadow: var(--shadow-md);
    transform: translateY(-8px); opacity: 0; pointer-events: none; transition: .3s var(--ease);
  }
  .nav-links.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links a { padding: 12px 14px; }
  .burger { display: grid; }
  /* app: the sidebar becomes the phone-style bottom tab bar from the mockup */
  .app-grid { grid-template-columns: 1fr; }
  .side {
    position: fixed; top: auto; bottom: 0; left: 0; right: 0; z-index: 90; border-radius: 22px 22px 0 0;
    display: flex; justify-content: space-around; padding: 8px 6px calc(8px + env(safe-area-inset-bottom)); box-shadow: var(--shadow-lg);
  }
  .side-item { flex-direction: column; gap: 3px; font-size: .64rem; padding: 7px 4px; margin: 0; text-align: center; justify-content: center; }
  .side-item.active { box-shadow: none; }
  .side .side-sep, .side .device-mini { display: none; }
  .rail { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .g-2, .g-3, .g-4, .g-5, .solution, .flow { grid-template-columns: 1fr; }
  .flow .step::after { display: none !important; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 14px; }
  .chip { display: none; }
  .hero { padding-top: calc(var(--nav-h) + 16px); }
  .hero-visual { min-height: 0; padding: 10px 0 0; }
  .hero-product { width: 52%; }
  .hero-deco.pills { width: 34%; right: 2%; }
  .nav-actions .btn-primary { padding: 8px 14px; }
  .brand-mark { width: 32px; height: 32px; }
  .conn { display: none; }
  #btn-connect #connect-label { display: none; }
  #btn-connect { padding: 9px 11px; }
  .dev-card { grid-template-columns: 1fr; text-align: center; }
  .dev-card img { width: 55%; margin: 0 auto; }
  .funnel .lvl { grid-template-columns: 1fr auto; }
  .funnel .lvl .d { grid-column: 1 / -1; order: 3; }
  .funnel .lvl:nth-child(n) { margin-inline: 0; }
  .foot-grid { grid-template-columns: 1fr; }
  .toasts { left: 14px; right: 14px; bottom: 90px; max-width: none; }
}

/* ============ band link (connect dialog + Perangkat) ============ */
.cx-dlg { border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--surface); color: var(--ink);
  padding: 22px; width: min(440px, calc(100vw - 32px)); box-shadow: 0 30px 80px rgba(20, 8, 10, .28); }
.cx-dlg::backdrop { background: rgba(20, 8, 10, .45); backdrop-filter: blur(3px); }
.cx-dlg h3 { margin: 0 0 4px; }
.cx-opts { display: grid; gap: 10px; margin: 16px 0 8px; }
.cx-opt { display: flex; align-items: center; gap: 14px; text-align: left; padding: 12px 14px; border-radius: 14px;
  border: 1px solid var(--line); background: var(--bg-soft); color: var(--ink); cursor: pointer; font: inherit;
  transition: border-color .2s, transform .2s; }
.cx-opt:hover:not(:disabled) { border-color: var(--red); transform: translateY(-1px); }
.cx-opt:disabled { opacity: .45; cursor: not-allowed; }
.cx-opt img { width: 40px; height: 40px; object-fit: contain; }
.cx-opt b { display: block; }
.cx-opt small { color: var(--ink-3); font-size: .78rem; }
.cx-note { color: var(--red); font-size: .82rem; min-height: 1em; }
.band-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: start; }
.band-ctl { display: grid; gap: 8px; }
.band-lbl { font-size: .8rem; color: var(--ink-3); margin-top: 4px; }
.band-input { flex: 1; min-width: 0; padding: 9px 12px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--bg-soft); color: var(--ink); font: inherit; font-size: .88rem; }
body.band-live .band-tile { border-color: color-mix(in srgb, var(--red) 45%, var(--line)); }
@media (max-width: 760px) { .band-grid { grid-template-columns: 1fr; } }

/* Buku tamu: newest visitors on the landing page (js/bukutamu/terbaru.js) */
.tamu-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 14px; }
.tamu-card { background: var(--surface, rgba(255,255,255,.06)); border: 1px solid var(--line, rgba(255,255,255,.1)); border-radius: 18px; overflow: hidden;
  display: flex; flex-direction: column; padding-bottom: 10px; }
.tamu-card img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; background: #2a0a12; margin-bottom: 8px; }
.tamu-card img.nophoto { object-fit: contain; padding: 18%; }
.tamu-card b, .tamu-card span, .tamu-card time { padding: 0 12px; }
.tamu-card b { font-size: .95rem; line-height: 1.25; }
.tamu-card span { font-size: .78rem; color: var(--ink-2, #cbb); }
.tamu-card time { font-size: .72rem; color: var(--ink-3, #998); }
#tamu[hidden] { display: none; }
.tamu-empty { grid-column: 1 / -1; text-align: center; color: var(--ink-3, #998); margin: 0; }
@media (max-width: 1180px) { .nav-tamu .t { display: none; } .nav-tamu { padding-inline: .75em; } }
@media (max-width: 440px) { .nav-actions .theme-toggle { display: none; } }
#tamu { scroll-margin-top: 80px; }
@media (max-width: 380px) { .nav-actions { gap: 5px; } .brand { gap: 6px; } .brand span, .brand b { font-size: .95em; } }