/* ==============================
   Fonts
   ============================== */
@import url("https://fonts.googleapis.com/css2?family=Michroma&display=swap");
@import url("https://fonts.googleapis.com/css2?family=Roboto+Flex:opsz,wght,wdth@8..144,300..900,75..125&display=swap");

/* ==============================
   Design Tokens — Core
   ============================== */
:root {
  /* Brand */
  --primary-color: #9eff0a;
  --secondary-color: #f2e302;
  --accent-color: #00ffe0;
  --accent-hover-color: #00cfff; /* Accent hover/link */

  /* Text */
  --text: #f5f5f5; /* Main text */
  --text-muted: #a2ecaf; /* Muted */
  --text-black: #000000;

  /* Typography */
  --font-display: "Michroma", system-ui, sans-serif; /* headings + buttons */
  --font-sans: "Roboto Flex", ui-sans-serif, system-ui, -apple-system,
    "Segoe UI", Arial, sans-serif;

  --fs-h1: 40px; /* headline as requested */
  --fs-h2: 28px;
  --fs-h3: 24px;
  --fs-body: 20px;
  --fs-eyebrow: 16px;

  --lh-tight: 1.15;
  --lh-normal: 1.5;

  --ls-wide: 2px; /* headings */
  --ls-cta: 3px; /* buttons */

  /* Spacing scale */
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Radii */
  --radius-xs: 8px;
  --radius-sm: 10px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 999px;

  /* Elevation & glow */
  --shadow-soft: 0 10px 32px rgba(0, 0, 0, 0.28);
  --glow-primary-sm: 0 0 8px var(--accent-green);
  --glow-primary-lg: 0 0 16px var(--accent-hover-color);

  /* Glass & surfaces */
  --glass-bg: rgba(10, 35, 28, 0.55);
  --glass-border: rgba(255, 255, 255, 0.14);
  --glass-border-weak: rgba(255, 255, 255, 0.12);
  --glass-blur: 6px;
  --glass-blur-strong: 8px;

  /* Background gradient */
  --bg-0: #0a0a0a;
  --bg-1: #013220;
  --bg-2: #006a43;
  --bg-3: #00ff7e;

  /* Links & focus */
  --link: var(--accent-1);
  --link-hover: var(--accent-hover-color);
  --focus-ring: 0 0 0 3px var(--primary-color),
    0 0 0 6px rgba(158, 255, 10, 0.35);

  /* Layout helpers */
  --container-px: 80px;
  --grid-gap: 24px;
  --section-py: 80px;

  /* Buttons */
  --btn-bg: var(--primary-color);
  --btn-fg: #0a0a0a;
  --btn-radius: var(--radius-sm);
  --btn-shadow: var(--glow-primary-sm);
  --btn-border-hover: var(--accent-color);
  --btn-shadow-hover: var(--glow-primary-lg);

  /* FAB */
  --fab-size: 44px;

  /* Meters & progress */
  --meter-h: 10px;
  --meter-track: rgba(255, 255, 255, 0.15);
  --meter-fill: linear-gradient(to right, var(--text-muted), var(--text-muted));
  --meter-inner-border: rgba(255, 255, 255, 0.18);

  /* Toggle */
  --toggle-w: 75px;
  --toggle-h: 40px;
  --toggle-label: #ecd7d3;
  --toggle-off-left: rgba(255, 255, 255, 0.06);
  --toggle-off-right: rgba(255, 255, 255, 0.12);
  --toggle-on-left: color-mix(in srgb, var(--brand-1) 30%, #0a0a0a 70%);
  --toggle-on-right: color-mix(in srgb, var(--brand-1) 65%, #0a0a0a 35%);

  /* Cards / panels */
  --card-bg: var(--glass-bg);
  --card-radius: var(--radius-lg);

  --panel-border: var(--glass-border-weak);
  --toggle-w: 75px;
  --toggle-h: 40px;
  --brand: #9eff0a; /* ON color/glow */
  --text-soft: #ecd7d3; /* text inside the track */
  --glass-border: rgba(255, 255, 255, 0.14);
}

body {
  margin: 0;
  overflow-x: hidden; /* only hide horizontal scroll */
  overflow-y: auto; /* allow vertical scroll */
  background: linear-gradient(
    135deg,
    var(--bg-0) 0%,
    var(--bg-1) 25%,
    var(--bg-2) 45%,
    var(--bg-3) 100%
  );
  color: var(--text);
  font-family: var(--font-sans);
  line-height: var(--lh-normal);
}

/* ===== Sticky Nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(16, 28, 23, 0.7);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.nav__bar {
  max-width: 1800px;
  margin: 0 auto;
  height: 80px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: relative;
}
.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.04em;
}
.nav__brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: #71d904;
  box-shadow: 0 0 0 2px rgba(113, 217, 4, 0.25),
    0 6px 18px rgba(113, 217, 4, 0.25);
}

/* Menu (mobile default = closed) */
.nav__menu {
  position: absolute;
  left: 0;
  right: 0;
  top: var(--bar-h);
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: max-height 0.3s ease, opacity 0.2s ease;
}
.nav__list {
  list-style: none;
  margin: 0;
  padding: 8px;
  display: grid;
  gap: 6px;
}
.nav__link {
  display: block;
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--muted);
  text-decoration: none;
}
.nav__link:hover,
.nav__link:focus-visible {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  outline: none;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  margin: 8px;
  border-radius: 14px;
  background: #71d904;
  color: #0a120f;
  text-decoration: none;
  font-weight: 600;
}

/* Hamburger (right) */
.nav__toggle {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  cursor: pointer;
}
.nav__hamburger,
.nav__hamburger::before,
.nav__hamburger::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  position: relative;
}
.nav__hamburger::before {
  position: absolute;
  transform: translateY(-6px);
}
.nav__hamburger::after {
  position: absolute;
  transform: translateY(6px);
}

/* Open state */
.nav--open .nav__menu {
  max-height: 60vh;
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* your existing style */
.nav-link.active,
.nav__link.active {
  color: var(--text);
  background: linear-gradient(
    90deg,
    rgba(113, 217, 4, 0.18),
    rgba(113, 217, 4, 0.02)
  );
  border: 1px solid rgba(113, 217, 4, 0.35);
}

/* ≥768px: inline menu, hide hamburger */
@media (min-width: 768px) {
  .nav__bar {
    gap: 24px;
  }
  .nav__toggle {
    display: none;
  }
  .nav__menu {
    position: static;
    max-height: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    background: transparent;
    border: 0;
  }
  .nav__list {
    display: flex;
    gap: 10px;
    padding: 0;
  }
  .btn-primary {
    margin: 0 0 0 8px;
  }
}

/* ≥1024px: a bit more breathing room */
@media (min-width: 1024px) {
  .nav__list {
    gap: 16px;
  }
}

/* Demo page sections */
main section {
  display: none !important;
  min-height: 60vh;
  display: grid;
  place-items: center;
  border-bottom: 1px dashed var(--border);
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.btn-primary {
  --ring: rgba(57, 211, 255, 0.55);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: var(--btn-radius);
  font-family: var(--font-head);
  letter-spacing: 0.06em;
  font-size: var(--fz-14);
  background: linear-gradient(180deg, #7dfb2f, var(--brand));
  color: #10210e;
  border: 1px solid rgba(113, 217, 4, 0.6);
  box-shadow: 0 10px 30px rgba(113, 217, 4, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
  transform: translateZ(0);
  transition: box-shadow 180ms ease, transform 180ms ease;
}
.btn-primary:hover {
  box-shadow: 0 14px 36px rgba(113, 217, 4, 0.35), 0 0 0 6px var(--ring);
  transform: translateY(-1px);
}
.btn-primary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px var(--ring);
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  padding: 10px;
  border-radius: var(--radius);
  color: var(--text);
}

/* Scrolled state subtle border */
.site-header.scrolled {
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06), 0 8px 20px rgba(0, 0, 0, 0.25);
}

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-sm);
}

/* ==============================
   3D Canvas
   ============================== */
.scene-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  pointer-events: auto;
  z-index: 0;
}

.scene-container canvas {
  width: 100% !important; /* Canvas visually fills its parent */
  max-height: 100% !important;
  object-fit: cover; /* Maintain aspect without letterboxing */
}

canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1; /* above the UI if needed */
  display: block;
}

/* ==============================
   Sections & Interaction
   ============================== */
.section-1,
.section-2 {
  pointer-events: none;
  height: 100vh;
}

.section-3 {
  position: relative;
  z-index: 2;
  pointer-events: none;
}

.cta,
.button,
.headline {
  pointer-events: auto;
}

/* re-enable for interactive elements */
.section-2 .when-btn,
.section-2 #when-dialog,
.section-2 #when-dialog *,
.section-2 .wm-modal__inner,
.section-2 .wm-close,
.section-2 .cta {
  pointer-events: auto;
}

/* ==============================
   Layout
   ============================== */
/* Container with grid */
.container {
  height: 100vh;
  width: 100vw;
  box-sizing: border-box;
  z-index: 10;
  position: relative;
  padding: 0 var(--container-px);
}

/* Grid layout */
.grid-section {
  grid-column: 1 / span 12;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: 1fr 1fr 1fr; /* Divide into 3 vertical parts */
  gap: var(--grid-gap);
  max-height: 100vh;
  padding-block: var(--section-py);
}

/* Left content */
.grid-left {
  grid-column: span 4;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  grid-row: 2;
}

/* RIGHT SIDE SHOT FEEDBACK */
.grid-right {
  grid-column: 10 / span 3;
  grid-row: 2;
  align-self: end;
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  border-radius: var(--card-radius);
  padding: var(--space-md);
  color: var(--text);
  font-family: var(--font-display);
  box-shadow: 0 0 8px var(--accent-color);
}

.grid-right h4 {
  font-size: 1.25rem;
  margin: 0;
}

.feedback-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.95rem;
  margin: var(--space-sm) 0 var(--space-2xs);
}

.progress-bar {
  width: 100%;
  height: var(--meter-h);
  background: var(--meter-track);
  border-radius: var(--radius-pill);
  overflow: hidden;
  margin-bottom: var(--space-sm);
}

.progress-fill {
  height: 100%;
  background: var(--meter-fill);
  border-radius: var(--radius-pill);
  transition: width 0.8s ease;
}

.progress-fill-sec {
  background-color: var(--secondary-color);
}
.label,
.value {
  transition: all 0.3s ease;
  letter-spacing: var(--ls-wide);
}

.when-title {
  margin: 24px 0 6px;
  font-size: clamp(16px, 1.8vw, 20px);
}

.when-copy {
  margin: 0 0 18px;
  color: var(--muted);
  max-width: 48ch;
  font-size: 1rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 20px;
  line-height: 1;
}
.chip--positive {
  background: color-mix(in oklab, var(--accent) 20%, transparent);
  border: 1px solid color-mix(in oklab, var(--accent) 40%, transparent);
  color: var(--text);
}
.chip-icon {
  display: block;
  width: 44px;
  height: 44px;
}
/* ==============================
   Type & Headings
   ============================== */
h1,
h2,
h3,
h4,
h5 {
  font-family: var(--font-display);
  letter-spacing: var(--ls-wide);
  color: var(--text);
  margin: 0 0 var(--space-md);
}
.headline {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: 700;
  color: var(--text);
  margin: 0 0 var(--space-md);
}
h3 {
  font-size: var(--fs-h2);
  font-weight: 700;
  color: var(--text);
}
p {
  font-size: var(--fs-body);
  font-family: var(--font-sans);
  font-weight: 400;
  color: var(--text);
  margin: 0 0 var(--space-md);
}
.eyebrow {
  font-size: var(--fs-eyebrow);
  font-family: var(--font-display);
  color: var(--text-muted);
}
.subhead {
  font-size: var(--fs-body);
  font-family: var(--font-display);
  color: var(--text);
}

/* Intro */
.intro {
  grid-column: span 4;
  grid-row: 1;
  font-size: 1rem;
  font-weight: 100;
  /* align-self: flex-end; */
}

/* ==============================
   Features & Links
   ============================== */

a {
  color: var(--link);
  text-decoration: none;
}
a:hover {
  color: var(--link-hover);
  text-shadow: 0 0 6px var(--link-hover);
}

/* ==============================
   Buttons (Primary / Secondary / FAB)
   ============================== */
.cta,
.button {
  padding: 16px 24px;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-display);
  letter-spacing: var(--ls-cta);
  background-color: var(--btn-bg);
  color: var(--btn-fg);
  box-shadow: var(--btn-shadow);
  border: none;
  border-radius: var(--btn-radius);
  cursor: pointer;
  width: fit-content;
  transition: all 0.3s ease;
}

.cta:hover,
.button:hover {
  background: transparent;
  color: var(--accent-color);
  border: 2px solid var(--btn-border-hover);
  box-shadow: var(--btn-shadow-hover);
}

.button.secondary,
.cta.secondary {
  background-color: var(--secondary-color);
  color: #0a0a0a;
}

.fab {
  position: fixed;
  right: var(--space-md);
  z-index: 1000;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--fab-size);
  height: var(--fab-size);
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  font-size: 20px;
  font-weight: 700;
  user-select: none;
  background: var(--accent-color);
  color: #0a0a0a;
  transition: transform 0.2s ease, opacity 0.2s ease, box-shadow 0.2s ease;
}

.fab:hover {
  background: transparent;
  border: 2px solid var(--accent-hover-color);
  color: var(--accent-green);
  box-shadow: var(--btn-shadow-hover);
}
.fab-down {
  bottom: var(--space-md);
}
.fab-up {
  bottom: calc(var(--space-md) + 56px);
} /* 16px + 40px gap */
.fab:active {
  transform: translateY(1px);
}

/* Position: bottom-center inside section-2 */
.section-2 {
  position: relative;
  z-index: 1;
}
.hud-bottom-center {
  position: absolute;
  left: 50%;
  bottom: clamp(12px, 3vh, 32px);
  transform: translateX(-50%);
  z-index: 10;
  pointer-events: auto;
}

.toggle.toggle-hdr {
  user-select: none;
  display: inline-block;
}

.toggle.toggle-hdr input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.toggle.toggle-hdr label {
  display: grid;
  grid-template-columns: 1fr 44px 1fr;
  align-items: center;
  gap: 10px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-pill);
  padding: 8px 12px;
  min-width: 200px;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
}

.toggle.toggle-hdr .txt {
  font: 500 12px/1.2 "Roboto", system-ui, sans-serif;
  letter-spacing: 0.2px;
  opacity: 0.7;
  transition: opacity 0.2s ease;
  white-space: nowrap;
}

.toggle.toggle-hdr .txt.on {
  justify-self: start;
}
.toggle.toggle-hdr .txt.off {
  justify-self: end;
}

.toggle.toggle-hdr .knob {
  width: 44px;
  height: 24px;
  border-radius: 999px;
  background: #0b0b0b;
  border: 1px solid var(--panel-border);
  position: relative;
}

.toggle.toggle-hdr .knob::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 3px;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  transition: left 0.2s ease;
}

/* ON state */
.toggle.toggle-hdr input:checked + label .knob {
  background: #0b0b0b;
}
.toggle.toggle-hdr input:checked + label .knob::after {
  left: 23px;
}
.toggle.toggle-hdr input:checked + label .txt.on {
  opacity: 1;
}
.toggle.toggle-hdr input:not(:checked) + label .txt.off {
  opacity: 1;
}

/* Focus ring */
.toggle.toggle-hdr input:focus-visible + label {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
}

/* ==============================
   Tech Toggle (bottom center)
   ============================== */

/* ---- Bottom-center placement for the whole control ---- */
/* Same row */
.tech-toggle-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  position: absolute;
  left: 50%;
  bottom: clamp(12px, 3vh, 32px);
  transform: translateX(-50%);
  z-index: 10;
  pointer-events: auto;
  display: grid;
  grid-template-columns: 1fr 44px;
  align-items: center;
  gap: 10px;

  padding: var(--wrap-pad-y) var(--wrap-pad-x);
  border-radius: var(--wrap-radius);
  background: radial-gradient(
      120% 160% at 0% 0%,
      rgba(255, 255, 255, 0.05),
      transparent 60%
    ),
    linear-gradient(180deg, var(--bg-900), var(--bg-800));
  border: 1px solid var(--panel-border);
  color: var(--text-100);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
  font-family: "Michroma", system-ui, sans-serif;
  min-width: 200px;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-pill);
  padding: 8px 12px;
  min-width: 200px;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  width: auto; /* override any fixed width */
  grid-template-columns: minmax(0, 1fr) max-content; /* <-- key fix */
  padding: 8px 16px;
}

/* Label as two lines: a small caption + big title */
.tech-toggle-label {
  display: block;
  line-height: 1.05;
  letter-spacing: 0.01em;
}
.tech-toggle-label::before {
  content: "3D Display Options";
  display: block;
  font-family: "Roboto", system-ui, sans-serif;

  color: var(--text-70);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

/* === Toggle control === */
.toggle-xl {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: var(--switch-h);
}
.toggle-xl input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 3;
}

/* Track (pill) */
.toggle-xl .track {
  position: relative;
  width: var(--switch-w);
  height: var(--switch-h);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  background-color: var(--card-bg);
  border: 1px solid var(--panel-border);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.25);
  display: flex;
  align-items: center;
  padding: 0 calc(var(--knob-m) + 8px);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

/* Knob */
.toggle-xl .track::before {
  content: "";
  position: absolute;
  left: var(--knob-m);
  width: var(--knob-d);
  height: var(--knob-d);
  border-radius: 50%;
  background: #0e1c17;
  box-shadow: inset 0 0 0 6px rgba(0, 0, 0, 0.35),
    0 3px 10px rgba(0, 0, 0, 0.45);
  transform: translateX(0);
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
  z-index: 2;
}

/* On/Off text inside the pill */
.toggle-xl .state {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  width: 100%;
  user-select: none;
  font-size: clamp(16px, 1.6vw, 26px);
  letter-spacing: 0.02em;
}
.toggle-xl .label-on {
  justify-self: start;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.25s, transform 0.25s;
}
.toggle-xl .label-off {
  justify-self: end;
  opacity: 1;
  transform: translateX(6px);
  transition: opacity 0.25s, transform 0.25s;
}

/* Checked state */
.toggle-xl input:checked + .track {
  background: linear-gradient(
    180deg,
    rgba(113, 217, 4, 0.28),
    rgba(113, 217, 4, 0.18)
  );
  background: (--primary-color);
  box-shadow: 0 0 0 1px rgba(113, 217, 4, 0.35),
    0 0 28px rgba(113, 217, 4, 0.22);
}
.toggle-xl input:checked + .track::before {
  transform: translateX(calc(var(--switch-w) - var(--switch-h)));
  background: #0e1c17; /* keep knob dark for contrast */
}
.toggle-xl input:checked + .track .label-on {
  opacity: 1;
  transform: translateX(0);
}
.toggle-xl input:checked + .track .label-off {
  opacity: 0;
  transform: translateX(0);
}

/* Focus ring */
.toggle-xl input:focus-visible + .track {
  outline: 2px solid var(--brand);
  outline-offset: 3px;
}

/* Motion-safe */
@media (prefers-reduced-motion: reduce) {
  .toggle-xl .track,
  .toggle-xl .track::before,
  .toggle-xl .label-on,
  .toggle-xl .label-off {
    transition: none;
  }
}
/* ==============================
   Segmented Spec/Materials Card
   ============================== */
.grid-right.segment-card {
  grid-column: 10 / span 3;
  grid-row: 2;
  align-self: end;
  pointer-events: auto;
  background-color: var(--card-bg);
  box-shadow: 0 0 8px var(--accent-color);
}
.segment-card {
  padding: 14px var(--space-md) var(--space-md);
  border-radius: var(--card-radius);
  color: var();
  font-family: var(--font-display);

  border: 1px solid var(--panel-border);
  box-shadow: var(--glow-primary-sm), var(--shadow-soft);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  position: relative;
}

/* hide radios */
.segment-card > input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

/* Segmented control */
.segment-card .segbar {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-pill);
  padding: 6px;
  margin-bottom: var(--space-sm);
  user-select: none;
  height: 44px;
  align-items: center;
}
.segment-card .segbar label {
  z-index: 1;
  cursor: pointer;
  text-align: center;
  font-size: 16px;
  letter-spacing: 0.1em;
  padding: 8px 10px;
  color: var(--text-black);
}
.segment-card .segbar .thumb {
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 6px;
  width: calc(50% - 6px);
  border-radius: var(--radius-pill);
  background: var(--primary-color);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
  transition: transform 0.25s ease;
}
#tab-materials:checked ~ .segbar .thumb {
  transform: translateX(100%);
}

/* Panels show/hide */
.segment-card .seg-panels .seg-panel {
  display: none;
}
#tab-spec:checked ~ .seg-panels #panel-spec {
  display: block;
}
#tab-materials:checked ~ .seg-panels #panel-materials {
  display: block;
}

/* Rows */
.segment-card .rows {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

/* Right block */

.segment-card .row {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  grid-auto-rows: auto;
  column-gap: 12px;
  align-items: center;
  border-radius: var(--radius-md);
  padding: 8px 10px;
  transition: background 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}
.segment-card .row:hover,
.segment-card .row.is-hovered {
  background: rgba(255, 255, 255, 0.06);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12),
    0 0 0 3px rgba(158, 255, 10, 0.14);
}
.segment-card .row:hover .icon,
.segment-card .row.is-hovered .icon {
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.25),
    0 0 10px rgba(158, 255, 10, 0.25);
}
.segment-card .row:hover .meter .fill,
.segment-card .row.is-hovered .meter .fill {
  filter: brightness(1.1);
}

.segment-card .icon {
  grid-column: 1;
  grid-row: 1 / span 2;
  width: 44px;
  height: 44px;
}
.segment-card .label {
  grid-column: 2;
  grid-row: 1;
  align-self: baseline;
  font-size: 16px;
  letter-spacing: 0.06em;
}
.segment-card .value {
  grid-column: 3;
  grid-row: 1;
  justify-self: end;
  align-self: baseline;

  font-size: 14px;
  opacity: 0.9;
}

.row p {
  grid-column: 2 / 4;
  grid-row: 2;
  margin: 6px 0 0;
  font: 14px/1.4 "Roboto", sans-serif;
  color: var(--muted);
}

.segment-card .meter {
  grid-column: 2 / -1;
  height: var(--meter-h);
  border-radius: var(--radius-pill);
  background: var(--meter-track);
  overflow: hidden;
  box-shadow: inset 0 0 0 1px var(--meter-inner-border);
  position: relative;
}
.segment-card .meter::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    transparent 0 72%,
    rgba(255, 255, 255, 0.24) 72% 100%
  );
  pointer-events: none;
}
.segment-card .meter .fill {
  width: var(--val, 50%);
  height: 100%;
  background: var(--meter-fill);
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px var(--meter-inner-border);
  transform-origin: left center;
  transition: width 0.35s ease, filter 0.18s ease;
}

/* Interactivity enabled in section-2 */
.section-2 .segment-card {
  pointer-events: auto !important;
  position: relative;
  z-index: 2;
}
.section-2 .segment-card * {
  pointer-events: auto !important;
}

/* Button hidden by default (desktop/tablet) */
.when-btn {
  display: none;
}
/* ==============================
   Responsiveness
   ============================== */
@media (max-width: 900px) {
  .grid-right.segment-card {
    grid-column: 8 / span 5;
  }
}
@media (max-width: 640px) {
  .grid-right.segment-card {
    grid-column: 1 / -1;
  }
}

.site-footer {
  margin-top: 48px;
  border-top: 1px solid var(--panel-border);
  background: linear-gradient(
    to bottom,
    rgba(10, 26, 19, 0.5),
    rgba(10, 26, 19, 0.85)
  );
  color: var(--text);
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 40px 16px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 24px;
  align-items: start;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.04em;
}
.logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--brand);
  box-shadow: 0 0 0 2px rgba(113, 217, 4, 0.25),
    0 6px 18px rgba(113, 217, 4, 0.25);
}
.f-brand {
  display: grid;
  gap: 10px;
}
.f-tag {
  color: var(--muted);
  max-width: 46ch;
}

.f-col h4 {
  margin: 0 0 12px;
  font-size: 14px;
  letter-spacing: 0.06em;
}
.f-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.f-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}
.f-links a:hover {
  color: var(--text);
}

.newsletter {
  display: grid;
  gap: 8px;
}
.nl-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 6px;
}
.nl-form input {
  background: transparent;
  border: 0;
  color: var(--text);
  padding: 10px 12px;
  font-size: 14px;
  min-width: 0;
}
.nl-form input::placeholder {
  color: var(--muted);
}
.nl-form input:focus {
  outline: none;
}
.btn-ghost {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(113, 217, 4, 0.35);
  background: linear-gradient(
    90deg,
    rgba(113, 217, 4, 0.18),
    rgba(113, 217, 4, 0.02)
  );
  color: var(--text);
  font-size: 12px;
  letter-spacing: 0.06em;
}
.btn-ghost:hover {
  box-shadow: 0 0 0 4px rgba(57, 211, 255, 0.28);
}
.nl-hint {
  color: var(--muted);
  font-size: 12px;
}

.f-bottom {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px dashed var(--panel-border);
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}
.legal {
  color: var(--muted);
  font-size: 12px;
}

.socials {
  display: flex;
  gap: 10px;
}
.socials a {
  display: inline-flex;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--panel-border);
  background: var(--panel);
  color: var(--text);
}
.socials a:hover {
  border-color: rgba(113, 217, 4, 0.5);
  box-shadow: 0 0 0 4px rgba(57, 211, 255, 0.28);
}

/* A11y helpers */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

#click-indicator {
  position: fixed;
  left: 0;
  top: 0;
  transform: translate(-50%, -50%);
  display: none;
  z-index: 50;
  pointer-events: none;
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.35));
}
#click-indicator .pulse {
  width: 36px; /* bigger dot (was 16px) */
  height: 36px; /* bigger dot (was 16px) */
  border-radius: 999px;
  background: #f2e302; /* requested color */
  box-shadow: 0 0 0 0 rgba(242, 227, 2, 0.55); /* ring color from #F2E302 */
  animation: pulse-ring 1.8s ease-out infinite; /* slightly longer pulse */
}
@keyframes pulse-ring {
  0% {
    box-shadow: 0 0 0 0 rgba(242, 227, 2, 0.55);
    transform: scale(0.9);
  }
  70% {
    box-shadow: 0 0 0 34px rgba(242, 227, 2, 0);
    transform: scale(1);
  } /* bigger ring */
  100% {
    box-shadow: 0 0 0 34px rgba(242, 227, 2, 0);
    transform: scale(0.9);
  }
}
#click-indicator .hint {
  position: absolute;
  top: -44px; /* nudge up to account for bigger dot */
  left: 28px; /* nudge sideways to clear bigger dot */
  padding: 8px 12px; /* slightly larger bubble */
  border-radius: 12px;
  background: rgba(20, 24, 22, 0.85);
  color: #f2f5f2;
  font: 500 12px/1.2 system-ui, sans-serif;
  white-space: nowrap;
  pointer-events: none;
  animation: hint-bob 2.2s ease-in-out infinite;
}
@keyframes hint-bob {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-3px);
  }
}

#when-dialog-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* Force the icon size */
#when-dialog-title .btn-icon {
  width: 18px;
  height: 18px;
  flex: 0 0 18px; /* prevents stretching in flex */
  vertical-align: middle; /* if not using flex */
}
.when-dialog__inner {
  background: #111;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 16px;
  max-width: 520px;
  width: calc(100% - 32px);
}

.when-close {
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.when-btn {
  display: none;
  align-items: center;
  gap: 8px; /* space between icon and text */
  /* keep your padding, border, colors, etc. */
}

.when-btn .btn-icon {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  color: currentColor; /* icon follows button text color */
}

/* Bottom-sheet overlay anchored to section-2 */
#when-dialog.when-dialog {
  position: absolute; /* anchor to .section-2 */
  left: 0;
  right: 0;
  bottom: 0;
  display: grid;
  align-content: end;
  justify-items: center;

  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.35),
    rgba(0, 0, 0, 0) 40%
  );
  z-index: 50000; /* above section content */
}

/* The dim layer */
.section-2__scrim {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  pointer-events: none; /* don’t block clicks */
  transition: opacity 0.25s ease;
  z-index: 9; /* below modal, above content */
}

/* Turn on the dim when modal is open */
.section-2.modal-open .section-2__scrim {
  opacity: 1;
}

#when-dialog[hidden] {
  display: none !important;
}

/* Panel */
.wm-modal__inner {
  width: min(92vw, 420px);
  max-height: min(70vh, 560px);
  overflow: auto;
  border-radius: 16px 16px 0 0;
  background: #0f3d2d;
  color: #eaf7ef;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  padding: 1rem;
}

/* Title + icon */
#wm-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
}
.wm-icon {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}

/* Body text */
.wm-modal__inner p {
  margin: 0 0 16px;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.9);
}

/* Chip */
.wm-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 9999px;
  padding: 8px 12px;
  font-weight: 500;
  margin: 8px 0 16px;
}
.wm-chip--positive {
  color: #e9fff0;
}
.wm-chip__icon {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}

/* Image card */
.wm-visual {
  margin: 12px 0 20px;
  border-radius: 8px;
  overflow: hidden;
  background: #0b291f;
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.wm-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* CTA */
.wm-primary {
  display: block;
  width: 100%;
  padding: 14px 16px;
  font-weight: 800;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  background: var(--primary-color, #9eff0a);
  color: #0a0a0a;
  box-shadow: 0 4px 10px rgba(158, 255, 10, 0.2);
}

/* (Optional) show the .when-btn only on phones */
.when-btn {
  display: none;
  align-items: center;
  gap: 8px;
}
.when-btn .btn-icon {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
}
@media (max-width: 480px) {
  .when-btn {
    display: inline-flex;
  }
}

/* default: no shadow */
.section-2::after {
  content: "";
  position: absolute;
  inset: 0; /* full coverage */
  background: rgba(0, 0, 0, 0.5); /* semi-transparent black */
  opacity: 0;
  pointer-events: none; /* don’t block clicks when hidden */
  transition: opacity 0.3s ease;
  z-index: 9998; /* just below the modal */
}

/* when modal is open */
.section-2.modal-open::after {
  opacity: 1;
}

.tech-detail-btn {
  display: none;
}

/* --- Modal --- */
/* default: never render the mobile copy anywhere */
.segment-card.modal-segment-card {
  display: none !important;
}

/* render it ONLY when the modal is actually open */
.tech-modal.open .segment-card.modal-segment-card {
  display: block !important;
}

.tech-modal[hidden] {
  display: none !important;
}

/* base */
.tech-modal {
  position: fixed;
  inset: 0;
  z-index: 2147483647;
  pointer-events: none;
}
.tech-modal[hidden] {
  display: none !important;
}
.tech-modal__backdrop {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.18s ease;
}
.tech-modal__dialog {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) scale(0.98);
  opacity: 0;
  transition: transform 0.18s ease, opacity 0.18s ease;
  pointer-events: auto; /* dialog clickable */
}

/* OPEN state */
.tech-modal.open {
  pointer-events: auto;
}
.tech-modal.open .tech-modal__backdrop {
  opacity: 1;
}
.tech-modal.open .tech-modal__dialog {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

/* hide mobile copy by default */
.segment-card.modal-segment-card {
  display: none;
}
/* show only when modal is open */
.tech-modal.open .segment-card.modal-segment-card {
  display: block;
}

/* panel switching that works for desktop + modal (suffix match) */
.segment-card .seg-panel {
  display: none;
}
.segment-card
  input[type="radio"][id$="tab-spec"]:checked
  ~ .seg-panels
  [id$="panel-spec"] {
  display: block;
}
.segment-card
  input[type="radio"][id$="tab-materials"]:checked
  ~ .seg-panels
  [id$="panel-materials"] {
  display: block;
}

/* default + inactive */
.segment-card .segbar label {
  color: var(--seg-inactive, rgba(255, 255, 255, 0.64));
  transition: color 0.18s ease;
}

/* active tab text (on the bright pill) */
.segment-card .segbar label.is-active {
  color: var(--seg-active, #0b0b0b); /* tweak to match your pill color */
}

/* modal segbar text colors */
#techModal .segbar label {
  color: var(--seg-inactive, rgba(255, 255, 255, 0.64));
  transition: color 0.18s ease;
}
#techModal .segbar label.is-active {
  color: var(--seg-active, #0b0b0b); /* set to #fff if your pill is dark */
}

/* ensure the thumb can move smoothly */
#techModal .segbar {
  position: relative;
}
#techModal .segbar .thumb {
  position: absolute;
  top: 2px;
  bottom: 2px;
  left: 2px;
  border-radius: 50px;
  transition: transform 0.22s ease, width 0.22s ease;
  will-change: transform, width;
}