/* Shared alt project shell. Canon: drsquatch-alt.html */

:root {
  --purple: #f2f0ec;
  --purple-strong: #f2f0ec;
  --accent-rgb: 242, 240, 236;
  --ink: #ffffff;
  --ink-soft: #e9e9e6;
  --muted: #8d8d89;
  --muted-soft: #6a6a66;
  --copy: #ffffff;
  --bg: #131314;
  --bg-soft: #0f0f10;
  --surface: #1b1b1d;
  --surface-2: #161618;
  --line: rgba(255,255,255,0.14);
  --glass: rgba(255,255,255,0.06);
  --glass-brd: rgba(255,255,255,0.12);
  --hl-bg: rgba(255,255,255,0.16);
  --glow-1: rgba(255,255,255,0.13);
  --glow-2: rgba(255,255,255,0.05);
  --nav-bg: rgba(19,19,20,0.72);
  --grain-opacity: 0.24;
  --btn-bg: #f2f0ec;
  --btn-ink: #131314;
  --nav-icon-filter: invert(1) brightness(1.6);
  --display: 'Unbounded', system-ui, sans-serif;
  --body: 'Config', system-ui, sans-serif;
  --card-radius: 8px;
  --pill-radius: 8px;
  --global-nav-h: 80px;
  --nav-subnav-gap: 24px;
  --subnav-h: 80px;
}

:root[data-theme="light"] {
  --purple: #1a1a1b;
  --purple-strong: #1a1a1b;
  --accent-rgb: 26, 26, 27;
  --ink: #1a1a1b;
  --ink-soft: #2a2a2a;
  --muted: #6f6f6a;
  --muted-soft: #9a9a96;
  --copy: #4a4a4a;
  --bg: #f2f0ec;
  --bg-soft: #e8e5de;
  --surface: #ffffff;
  --surface-2: #faf8f6;
  --line: rgba(0,0,0,0.14);
  --glass: rgba(255,255,255,0.30);
  --glass-brd: rgba(255,255,255,0.55);
  --hl-bg: rgba(0,0,0,0.10);
  --glow-1: rgba(0,0,0,0.08);
  --glow-2: rgba(0,0,0,0.03);
  --nav-bg: rgba(242,240,236,0.72);
  --grain-opacity: 0.12;
  --btn-bg: #1a1a1b;
  --btn-ink: #f2f0ec;
  --nav-icon-filter: none;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(circle 34vmax at var(--mx, 50%) var(--my, 18%), var(--glow-1) 0%, var(--glow-2) 32%, transparent 62%);
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

main.case-page,
.contact-section,
.project-nav,
.lightbox {
  position: relative;
  z-index: 1;
}

.side-menu {
  position: fixed;
  top: 50%;
  left: 32px;
  transform: translateY(-50%);
  z-index: 40;
  max-height: calc(100vh - 160px);
  overflow-y: auto;
  font-family: var(--display);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

body.scrolled .side-menu {
  opacity: 1;
  pointer-events: auto;
}

.side-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.side-menu a {
  display: block;
  font-size: 15px;
  font-weight: 400;
  color: var(--muted);
  transition: color 0.25s ease, font-size 0.25s ease;
  white-space: nowrap;
  line-height: 1.2;
}

.side-menu a:hover { color: var(--ink); }

.side-menu a.active {
  color: var(--purple-strong);
  font-size: 22px;
}

.side-menu::-webkit-scrollbar { width: 0; }

h1,
h2,
h3,
h4,
h5,
h6,
.case-meta-row .title,
.section-header h2,
.sub-section h3,
.ps-frame .ps-title,
.framework-card .name,
.contact-heading h2,
.project-nav-link,
.pn-eyebrow,
.pn-name,
.bundle-stars h4,
.ai-marquee-title,
.image-window .iw-headline,
.nco-copy h4 {
  font-family: var(--display);
}

.hl { background-color: var(--hl-bg) !important; }

.product-tile-stage,
.product-tile {
  --ink: #1a1a1a;
  --muted: #8a8a8a;
  --surface: #fff;
}

.hero-image,
.section,
.section-header,
.case-tags .chip,
.placeholder-block,
.ps-frame,
.ps-frame .ps-card,
.sub-section .figure,
.sub-section .video-figure,
.sub-section .video-frame,
.sub-section .video-frame .iframe-wrap,
.marquee-row .pic,
.framework-card,
.impact-card,
.ai-marquee-card,
.ai-animation-window,
.nco-panel,
.nco-before-frame,
.nco-stage,
.annotated-hero,
.formula-marquee-item,
.image-window,
.impact-table,
.bundle-star-card,
.opportunity-card,
.contact-submit {
  border-radius: var(--card-radius);
}

.nav-link,
.theme-toggle {
  border-radius: var(--pill-radius);
}

.nav-wrap { display: none !important; }

.snav {
  position: sticky;
  top: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  padding: 0 40px;
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), background 0.4s ease;
  will-change: transform;
}

body.nav-hidden .snav { transform: translateY(-100%); }

.snav-brand {
  font-family: var(--display);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.snav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.snav-links a {
  font-family: var(--display);
  font-weight: 500;
  font-size: 15px;
  color: var(--ink);
}

.snav-links a:hover { opacity: 0.7; }

.snav-ln {
  display: inline-flex;
  width: 20px;
  height: 20px;
  opacity: 0.85;
}

.snav-ln img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: var(--nav-icon-filter);
}

.theme-toggle {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--pill-radius);
  border: 1px solid var(--line);
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--ink);
  cursor: pointer;
  box-shadow: 0 12px 32px -18px var(--glow-1);
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.theme-toggle:hover {
  background: var(--glass);
  border-color: var(--glass-brd);
  transform: translateY(-1px);
}

.theme-toggle svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.theme-toggle .ic-sun { display: block; }
.theme-toggle .ic-moon { display: none; }
:root[data-theme="light"] .theme-toggle .ic-sun { display: none; }
:root[data-theme="light"] .theme-toggle .ic-moon { display: block; }

.section-header {
  height: 80px;
  top: calc(var(--global-nav-h) + var(--nav-subnav-gap));
  transition:
    top 0.4s cubic-bezier(0.2, 0.8, 0.2, 1),
    margin 0.45s cubic-bezier(0.2, 0.8, 0.2, 1),
    padding 0.45s cubic-bezier(0.2, 0.8, 0.2, 1),
    border-radius 0.35s ease;
}

:root:not([data-theme="light"]) .section-header {
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: none;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  box-shadow: none;
}

:root:not([data-theme="light"]) .section-header::before {
  display: none;
}

body.nav-hidden .section-header { top: 0; }

body.nav-hidden .section-header.pinned {
  height: 80px;
  margin-left: calc(-50vw + 50%);
  margin-right: calc(-50vw + 50%);
  border-radius: 0;
  border: none;
  border-bottom: 1px solid var(--line);
  box-shadow: none;
  padding-left: 40px;
  padding-right: 40px;
}

.sub-section h3,
.bundle-stars h4,
.ai-marquee-title,
.ps-frame .ps-title,
.framework-card .name,
.image-window .iw-headline,
.nco-copy h4 {
  font-family: var(--display);
  font-style: normal;
}

:root:not([data-theme="light"]) .framework-card,
:root:not([data-theme="light"]) .impact-card,
:root:not([data-theme="light"]) .ps-mini,
:root:not([data-theme="light"]) .ps-frame,
:root:not([data-theme="light"]) .sub-section .figure,
:root:not([data-theme="light"]) .sub-section .video-figure,
:root:not([data-theme="light"]) .marquee-section,
:root:not([data-theme="light"]) .placeholder-block,
:root:not([data-theme="light"]) .ai-marquee-card,
:root:not([data-theme="light"]) .ai-animation-window,
:root:not([data-theme="light"]) .nco-panel,
:root:not([data-theme="light"]) .nco-before-frame,
:root:not([data-theme="light"]) .nco-stage,
:root:not([data-theme="light"]) .annotated-hero,
:root:not([data-theme="light"]) .formula-marquee-item,
:root:not([data-theme="light"]) .bundle-device,
:root:not([data-theme="light"]) .image-window,
:root:not([data-theme="light"]) .impact-table,
:root:not([data-theme="light"]) .bundle-star-card,
:root:not([data-theme="light"]) .opportunity-map[aria-label="Bundle builder opportunity map"] .opportunity-card,
:root:not([data-theme="light"]) #ds-methods .opportunity-card,
:root:not([data-theme="light"]) .product-tile-stage {
  background: #fff;
  --ink: #1a1a1b;
  --ink-soft: #2a2a2a;
  --muted: #6f6f6a;
  --muted-soft: #9a9a96;
  --copy: #4a4a4a;
  --purple: #1a1a1b;
  --purple-strong: #1a1a1b;
  --surface: #ffffff;
  --surface-2: #faf8f6;
  --line: rgba(0,0,0,0.14);
  --hl-bg: rgba(0,0,0,0.10);
  --glass: rgba(255,255,255,0.30);
  --glass-brd: rgba(255,255,255,0.55);
  --accent-rgb: 26,26,27;
  color: var(--copy);
}

:root:not([data-theme="light"]) .ps-cell,
:root:not([data-theme="light"]) .ps-proof-text {
  color: #fff;
}

:root:not([data-theme="light"]) .bundle-demo-copy,
:root:not([data-theme="light"]) .bundle-demo-copy h4,
:root:not([data-theme="light"]) .bundle-demo-copy p {
  color: #fff;
}

:root:not([data-theme="light"]) .bs-morph-items { background: #e9e1cd; }

:root:not([data-theme="light"]) .sheet-text,
:root:not([data-theme="light"]) .sheet-text strong {
  color: #fff;
}

.project-nav {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 80px 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  border-top: 1px solid var(--line);
}

.project-nav-link {
  display: flex;
  flex-direction: column;
  gap: 10px;
  color: var(--ink);
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.3s ease;
}

.project-nav-link.next {
  text-align: right;
  align-items: flex-end;
}

.project-nav-link:hover { opacity: 0.75; }
.project-nav-link.prev:hover { transform: translateX(-6px); }
.project-nav-link.next:hover { transform: translateX(6px); }

.pn-eyebrow {
  font-family: var(--display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.pn-name {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(28px, 4vw, 56px);
  letter-spacing: -0.02em;
  line-height: 1;
}

@media (max-width: 900px) {
  .snav {
    padding: 0 20px;
  }

  .snav-links {
    gap: 18px;
  }

  /* Let the sub nav grow to fit its stacked title + stepper on mobile.
     Without this, the unconditional height: 80px above clips the wrapped
     content ("cut off" sub nav). Each page supplies the column layout. */
  .section-header {
    height: auto;
  }

  body.nav-hidden .section-header.pinned {
    height: auto;
  }
}

@media (max-width: 1200px) {
  .side-menu { display: none; }
}

@media (max-width: 700px) {
  /* Top nav shrinks to 64px on phones — match the offset and tighten the
     gap to the sub nav to 8px when both are present together. */
  :root {
    --global-nav-h: 64px;
    --nav-subnav-gap: 8px;
  }

  .project-nav {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 56px 22px;
  }

  .project-nav-link.next {
    text-align: left;
    align-items: flex-start;
  }

  /* Keep the top nav from overflowing on phones */
  .snav {
    height: 64px;
    padding: 0 16px;
  }

  .snav-brand { font-size: 15px; }

  .snav-links {
    gap: 14px;
  }

  .snav-links a { font-size: 14px; }

  /* Pinned section headers use the same compact horizontal padding */
  body.nav-hidden .section-header.pinned {
    padding-left: 16px;
    padding-right: 16px;
  }
}

@media (max-width: 380px) {
  .snav-brand { font-size: 13px; }
  .snav-links { gap: 10px; }
  .snav-links a { font-size: 13px; }
}