:root {
  --ink: #e8eef7;
  --muted: #9aa8bb;
  --line: rgba(148, 163, 184, .18);
  --line-strong: rgba(96, 217, 197, .38);
  --surface: #0b1524;
  --surface-soft: #101f33;
  --surface-raised: #13253c;
  --accent: #60d9c5;
  --accent-hover: #75e7d5;
  --accent-blue: #77a9ff;
  --paper: #f5f8fc;
  --dark: #07111f;
  --shadow: 0 24px 70px rgba(0, 0, 0, .26);
  --shadow-glow: 0 16px 48px rgba(0, 0, 0, .4), 0 0 28px rgba(96, 217, 197, .18);
  --radius: 22px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }

/* Custom Sleek Scrollbar */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--dark); }
::-webkit-scrollbar-thumb { background: rgba(148, 163, 184, .25); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

body {
  margin: 0;
  color: var(--ink);
  background-color: var(--surface);
  background-image:
    radial-gradient(ellipse 90% 60% at 50% -5%, rgba(96, 217, 197, .10), transparent 55%),
    radial-gradient(ellipse 60% 40% at 85% 22%, rgba(119, 169, 255, .08), transparent 50%),
    radial-gradient(ellipse 65% 45% at 15% 58%, rgba(96, 217, 197, .06), transparent 50%),
    radial-gradient(ellipse 70% 50% at 80% 85%, rgba(119, 169, 255, .06), transparent 50%);
  background-repeat: no-repeat;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.shell { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }

.skip-link {
  position: absolute; left: 16px; top: -50px; z-index: 20;
  padding: 10px 14px; color: var(--dark); background: var(--accent); font-weight: 700;
}
.skip-link:focus { top: 16px; }

/* Site Header */
.site-header {
  position: sticky; top: 0; z-index: 100; display: flex; align-items: center;
  justify-content: space-between; min-height: 74px; padding: 0 max(24px, calc((100vw - 1160px) / 2));
  border-bottom: 1px solid var(--line); background: rgba(7, 17, 31, .84); backdrop-filter: blur(20px);
}
.wordmark { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-size: .94rem; font-weight: 800; letter-spacing: -.02em; }
.wordmark-mark { display: grid; width: 32px; height: 32px; place-items: center; border: 1px solid var(--accent); border-radius: 9px; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .72rem; box-shadow: 0 0 12px rgba(96, 217, 197, .2); }
.site-nav { display: flex; align-items: center; gap: 26px; }
.site-nav a, .quick-links a, .footer-links a { color: var(--muted); text-decoration: none; font-size: .83rem; font-weight: 700; transition: color .18s; }
.site-nav a:hover, .quick-links a:hover, .footer-links a:hover, .card-links a:hover, .lab-link:hover { color: var(--accent); }
.menu-toggle {
  display: none; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: 10px; min-height: 44px; min-width: 68px;
  padding: 10px 16px; color: var(--ink); background: rgba(255,255,255,.06);
  font: inherit; font-size: .84rem; font-weight: 700; cursor: pointer; transition: all .18s ease;
}
.menu-toggle:hover, .menu-toggle:focus-visible { border-color: var(--accent); color: var(--accent); background: rgba(96, 217, 197, .08); }

/* Music Dock */
.music-dock { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-top: 24px; padding-top: 14px; border-top: 1px dashed rgba(148, 163, 184, .16); }
.sound-toggle { border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px; color: var(--muted); background: rgba(255,255,255,.03); font: inherit; font-size: .74rem; font-weight: 700; cursor: pointer; transition: all .18s; }
.sound-toggle:hover { border-color: var(--accent); color: var(--accent); background: rgba(96, 217, 197, .08); }
.music-dock > span { color: var(--muted); font-size: .72rem; }
.youtube-player { flex-basis: 100%; max-width: 520px; aspect-ratio: 16 / 9; margin-top: 10px; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: #000; box-shadow: var(--shadow); }
.youtube-player[hidden] { display: none; }
.youtube-player iframe { width: 100%; height: 100%; border: 0; }

/* Shared Button Styles */
.btn, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 999px;
  padding: 12px 22px;
  text-decoration: none;
  font-size: .86rem;
  font-weight: 800;
  letter-spacing: -.01em;
  transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease, color .18s ease;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn:hover, .button:hover {
  transform: translateY(-2px);
}
.btn:active, .button:active {
  transform: translateY(0);
}
.btn-primary, .button-primary {
  color: var(--dark) !important;
  background: var(--accent) !important;
  border-color: var(--accent) !important;
  box-shadow: 0 6px 20px rgba(96, 217, 197, .35);
}
.btn-primary:hover, .button-primary:hover {
  background: var(--accent-hover) !important;
  box-shadow: 0 10px 28px rgba(96, 217, 197, .5);
}
.btn-secondary, .button-quiet {
  color: var(--ink) !important;
  background: rgba(255, 255, 255, .04) !important;
  border: 1px solid var(--line) !important;
  backdrop-filter: blur(8px);
}
.btn-secondary:hover, .button-quiet:hover {
  border-color: var(--accent) !important;
  background: rgba(96, 217, 197, .08) !important;
  color: #fff !important;
  box-shadow: 0 6px 20px rgba(96, 217, 197, .18);
}

/* Hero Section */
.hero { display: grid; grid-template-columns: minmax(0, 1.18fr) 390px; gap: 56px; align-items: center; min-height: 620px; padding-block: 84px 96px; }
.hero-copy { display: flex; flex-direction: column; }
.eyebrow { margin: 0 0 20px; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .73rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
.status-dot { display: inline-block; width: 7px; height: 7px; margin-right: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px rgba(96, 217, 197, .18); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 780px; margin-bottom: 22px; font-size: clamp(2.8rem, 5vw, 5.2rem); line-height: 1.03; letter-spacing: -.065em; }
h1 em { color: var(--accent); font-style: normal; }
h2 { max-width: 720px; margin-bottom: 20px; font-size: clamp(1.9rem, 3.2vw, 3rem); line-height: 1.08; letter-spacing: -.05em; }
h3 { margin-bottom: 12px; font-size: clamp(1.25rem, 2vw, 1.7rem); line-height: 1.2; letter-spacing: -.03em; }
.hero-lede { max-width: 630px; margin-bottom: 22px; color: var(--muted); font-size: clamp(1.02rem, 1.45vw, 1.18rem); line-height: 1.65; }

/* Hero Badges */
.hero-badges-wrap { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
.hero-authority-badge { display: inline-flex; align-items: center; gap: 8px; padding: 7px 16px; border-radius: 999px; background: rgba(119, 169, 255, .1); border: 1px solid rgba(119, 169, 255, .32); color: var(--accent-blue); font-size: .78rem; font-weight: 700; text-decoration: none; transition: background .18s, border-color .18s, transform .15s; }
.hero-authority-badge:hover { background: rgba(119, 169, 255, .22); border-color: var(--accent-blue); color: #fff; transform: translateY(-1px); }
.hero-badge-github { background: rgba(119, 169, 255, .15); border-color: rgba(119, 169, 255, .45); color: #8ab8ff; font-weight: 800; }
.hero-badge-github:hover { background: rgba(119, 169, 255, .28); border-color: var(--accent-blue); color: #fff; }
.hero-badge-reel { background: rgba(96, 217, 197, .12); border-color: rgba(96, 217, 197, .38); color: var(--accent); }
.hero-badge-reel:hover { background: rgba(96, 217, 197, .24); border-color: var(--accent); color: #fff; }

/* Hero Actions & Quick Links */
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 24px; }
.quick-links { display: flex; flex-wrap: wrap; gap: 18px; }

/* Hero Orbit & Floating Photo */
.hero-orbit { position: relative; width: min(390px, 80vw); aspect-ratio: 1; justify-self: center; }
.orbit { position: absolute; inset: 9%; border: 1px solid rgba(119, 169, 255, .28); border-radius: 50%; transform: rotate(-24deg); }
.orbit::after { position: absolute; top: 7%; left: 10%; width: 9px; height: 9px; border-radius: 50%; background: var(--accent-blue); box-shadow: 0 0 22px 4px rgba(119, 169, 255, .65); content: ""; }
.orbit-one { transform: rotate(-24deg) scaleY(.55); }
.orbit-two { transform: rotate(62deg) scaleY(.55); border-color: rgba(96, 217, 197, .3); }
.orbit-two::after { top: auto; right: 12%; bottom: 8%; background: var(--accent); box-shadow: 0 0 22px 4px rgba(96, 217, 197, .65); }

@keyframes subtle-float {
  0%, 100% { transform: rotate(2deg) translateY(0); }
  50% { transform: rotate(2deg) translateY(-8px); }
}

.profile-photo-card {
  position: absolute; z-index: 1; top: 9%; left: 22%; width: 56%; aspect-ratio: 639 / 773;
  overflow: hidden; margin: 0; border: 1px solid rgba(96, 217, 197, .62); border-radius: 28px;
  background: #102238; box-shadow: 0 24px 70px rgba(0, 0, 0, .45), 0 0 30px rgba(96, 217, 197, .15);
  animation: subtle-float 7s ease-in-out infinite;
}
.profile-photo-card::after { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 48%, rgba(7, 17, 31, .9)); content: ""; pointer-events: none; }
.profile-photo-card img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center 28%; }
.profile-photo-card figcaption { position: absolute; right: 16px; bottom: 14px; left: 16px; z-index: 1; color: var(--ink); font-size: .68rem; line-height: 1.35; }
.profile-photo-card figcaption strong, .profile-photo-card figcaption span { display: block; }
.profile-photo-card figcaption strong { color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .74rem; }
.profile-photo-card figcaption span { color: #c2ccda; }
.orbit-label { position: absolute; color: var(--muted); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .61rem; letter-spacing: .04em; }
.label-top { top: 5%; left: 25%; } .label-right { top: 47%; right: -3%; } .label-bottom { bottom: 5%; left: 26%; }

/* Sections */
.section { padding-block: 88px; }
.section-muted { border-block: 1px solid rgba(148, 163, 184, .12); background: rgba(11, 21, 36, .7); backdrop-filter: blur(10px); }
.section-dark { background: #06101c; }
.section-heading { margin-bottom: 40px; }
.section-intro { max-width: 660px; color: var(--muted); font-size: .98rem; }

/* 3D Lab Showcase */
.shorts-showcase {
  max-width: 980px; margin-inline: auto; margin-bottom: 44px; padding: 28px;
  border: 1px solid var(--line-strong); border-radius: var(--radius);
  background: rgba(16, 31, 51, .88); backdrop-filter: blur(16px);
  box-shadow: var(--shadow-glow); display: flex; flex-direction: column; gap: 20px;
}
.shorts-showcase-info { display: flex; flex-direction: column; }
.shorts-features { list-style: none; padding: 0; margin: 16px 0 24px; display: flex; flex-direction: column; gap: 10px; font-size: .9rem; color: var(--muted); }
.shorts-features li { display: flex; align-items: flex-start; gap: 10px; line-height: 1.5; }
.shorts-features li span { color: var(--accent); font-size: 1.05rem; }
.shorts-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.shorts-actions.mobile-only { justify-content: center; margin-top: 8px; }
.shorts-actions.desktop-only { display: none; }

.youtube-shorts-wrapper {
  width: 100%; max-width: 330px; margin: 0 auto; aspect-ratio: 9 / 16;
  border-radius: 22px; overflow: hidden; border: 2px solid rgba(96, 217, 197, .48);
  box-shadow: 0 20px 50px rgba(0, 0, 0, .6), 0 0 35px rgba(96, 217, 197, .2);
  background: #000; position: relative;
}
.youtube-shorts-wrapper iframe { width: 100%; height: 100%; border: 0; display: block; }

@media (min-width: 860px) {
  .shorts-showcase { display: grid; grid-template-columns: 1.15fr 330px; gap: 40px; padding: 36px 42px; align-items: center; }
  .shorts-actions.mobile-only { display: none; }
  .shorts-actions.desktop-only { display: flex; justify-content: flex-start; }
}

/* Lab Grid */
.lab-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.lab-card {
  display: flex; min-height: 225px; flex-direction: column; padding: 26px;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: rgba(16, 31, 51, .75); backdrop-filter: blur(12px);
  text-decoration: none; color: var(--ink);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.lab-card:hover {
  border-color: var(--accent); transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, .4), 0 0 25px rgba(96, 217, 197, .15);
}
.lab-card-primary { background: linear-gradient(145deg, rgba(18, 57, 75, .85), rgba(16, 32, 55, .9)); border-color: rgba(96, 217, 197, .35); }
.lab-card-substack { background: linear-gradient(145deg, rgba(36, 26, 18, .85), rgba(16, 28, 46, .9)); border-color: rgba(255, 103, 25, .32); }
.lab-card-substack:hover { border-color: #ff6719; box-shadow: 0 16px 40px rgba(0, 0, 0, .4), 0 0 25px rgba(255, 103, 25, .2); }
.lab-card-substack .lab-kicker, .lab-card-substack .lab-link { color: #ff8533; }
.lab-card-github { background: linear-gradient(145deg, rgba(19, 35, 58, .85), rgba(11, 23, 40, .9)); border-color: rgba(119, 169, 255, .35); }
.lab-card-github:hover { border-color: var(--accent-blue); box-shadow: 0 16px 40px rgba(0, 0, 0, .4), 0 0 25px rgba(119, 169, 255, .2); }
.lab-card-github .lab-kicker, .lab-card-github .lab-link { color: var(--accent-blue); }
.lab-kicker { margin-bottom: auto; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .7rem; text-transform: uppercase; letter-spacing: .08em; }
.lab-card strong { display: block; margin: 18px 0 8px; font-size: 1.35rem; letter-spacing: -.03em; }
.lab-card > span:not(.lab-kicker):not(.lab-link) { color: var(--muted); font-size: .84rem; line-height: 1.55; }
.lab-link { margin-top: 22px; color: var(--accent); font-size: .8rem; font-weight: 800; display: inline-flex; align-items: center; gap: 4px; }

/* Research Section */
.research-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.research-card { min-height: 250px; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(16, 31, 51, .85); backdrop-filter: blur(12px); box-shadow: var(--shadow); transition: transform .2s ease, border-color .2s ease; }
.research-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.featured-card { background: linear-gradient(135deg, rgba(16, 45, 67, .85), rgba(16, 32, 57, .9)); border-color: rgba(96, 217, 197, .32); }
.research-card p { color: var(--muted); font-size: .9rem; line-height: 1.6; }
.card-topline { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 22px; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; }
.pill { color: var(--accent-blue); }
.pill-green { color: var(--accent); }
.card-links { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 26px; }
.card-links a { color: var(--accent); font-size: .8rem; font-weight: 800; text-decoration: none; }
.card-links a:hover { text-decoration: underline; }

/* Systems Grid */
.system-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--line); }
.system-card { position: relative; display: flex; min-height: 210px; flex-direction: column; padding: 26px; color: var(--ink); background: #102033; text-decoration: none; transition: background .2s, transform .2s; }
.system-card:hover { z-index: 1; background: #16374a; transform: translateY(-3px); }
.system-card-large { background: #142c42; }
.system-badge { display: inline-block; align-self: flex-start; margin-bottom: 8px; padding: 3px 9px; border-radius: 6px; background: rgba(119, 169, 255, .15); border: 1px solid rgba(119, 169, 255, .35); color: var(--accent-blue); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .66rem; font-weight: 700; }
.system-index { margin-bottom: auto; color: #6a7c8e; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .75rem; }
.system-title { margin: 18px 0 8px; font-size: 1.25rem; font-weight: 800; letter-spacing: -.03em; }
.system-description { max-width: 390px; color: var(--muted); font-size: .84rem; line-height: 1.5; }
.system-quote { max-width: 390px; margin-top: 16px; color: var(--accent); font-size: .75rem; font-style: italic; line-height: 1.45; }
.system-arrow { position: absolute; top: 25px; right: 25px; color: var(--accent); font-size: 1.3rem; transition: transform .18s; }
.system-card:hover .system-arrow { transform: translate(3px, -3px); }

/* The Cave Manifesto & Quests */
.featured-instagram-card { max-width: 760px; padding: 28px; border: 1px solid rgba(96, 217, 197, .45); border-radius: var(--radius); background: rgba(16, 31, 51, .86); backdrop-filter: blur(14px); box-shadow: var(--shadow-glow); }
.quest-panel { display: grid; grid-template-columns: .8fr 1.2fr; gap: 50px; align-items: center; }
.quest-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.quest-card { display: flex; min-height: 140px; flex-direction: column; align-items: flex-start; padding: 20px; border: 1px solid var(--line); border-radius: 17px; color: var(--ink); background: rgba(255,255,255,.035); text-align: left; cursor: pointer; font: inherit; transition: border-color .2s, transform .2s, background .2s, box-shadow .2s; }
.quest-card:hover { border-color: var(--accent); background: rgba(96,217,197,.08); transform: translateY(-3px); box-shadow: 0 10px 25px rgba(0,0,0,.3); }
.quest-card-power { border-color: rgba(255, 202, 80, .35); }
.quest-card-power:hover { border-color: #ffca50; background: rgba(255, 202, 80, .08); }
.quest-card-power .quest-icon { color: #ffca50; }
.quest-icon { margin-bottom: auto; color: var(--accent); font-size: 1.25rem; }
.quest-card strong { margin-top: 12px; font-size: .88rem; }
.quest-card span:last-child { margin-top: 5px; color: var(--muted); font-size: .72rem; line-height: 1.45; }
.quest-motto { grid-column: 2; margin: 20px 0 0; color: var(--accent); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .82rem; }

.compact-section { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.compact-section p { margin: 0; color: var(--muted); font-size: .92rem; line-height: 1.6; }
.compact-section a { color: var(--accent); }

/* Quotes Section - 4 Columns Desktop, 2 Tablet, 1 Mobile */
.quote-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.quote-card { position: relative; padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(16, 31, 51, .85); backdrop-filter: blur(12px); box-shadow: var(--shadow); display: flex; flex-direction: column; transition: transform .2s ease, border-color .2s ease; overflow: hidden; }
.quote-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.quote-card::before {
  content: "“"; position: absolute; right: 14px; top: 10px; font-family: Georgia, serif;
  font-size: 4.8rem; line-height: 1; color: var(--accent); opacity: .06; pointer-events: none;
}
.quote-card blockquote { margin: 16px 0 12px; color: var(--ink); font-size: clamp(1.05rem, 1.4vw, 1.3rem); line-height: 1.35; letter-spacing: -.02em; font-weight: 600; }
.quote-caption { color: var(--muted); font-size: .8rem; margin-top: auto; line-height: 1.45; }
.quote-video-button { margin-top: 14px; border: 1px solid var(--line); border-radius: 999px; padding: 8px 12px; color: var(--accent); background: rgba(96,217,197,.05); font: inherit; font-size: .74rem; font-weight: 800; cursor: pointer; transition: all .18s; align-self: flex-start; }
.quote-video-button:hover { border-color: var(--accent); color: #fff; background: rgba(96,217,197,.15); }
.quote-video { width: 100%; aspect-ratio: 16 / 9; margin-top: 16px; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: #000; }
.quote-video[hidden] { display: none; }
.quote-video iframe { width: 100%; height: 100%; border: 0; }

/* Contact Grid */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; margin-top: 24px; }
.contact-card { display: flex; flex-direction: column; padding: 26px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(16, 31, 51, .85); backdrop-filter: blur(12px); text-decoration: none; color: var(--ink); box-shadow: var(--shadow); transition: border-color .2s, transform .2s; }
.contact-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.contact-card strong { font-size: 1.15rem; margin-bottom: 8px; letter-spacing: -.02em; }
.contact-card span { color: var(--muted); font-size: .84rem; line-height: 1.5; }
.contact-card .contact-meta { margin-top: auto; padding-top: 18px; color: var(--accent); font-weight: 800; font-size: .8rem; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); background: var(--dark); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 34px; }
.footer-inner strong, .footer-inner span { display: block; }
.footer-inner strong { font-size: .9rem; }
.footer-inner span { color: var(--muted); font-size: .75rem; }
.footer-links { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }

/* Responsive Rules */
@media (max-width: 1100px) {
  .quote-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 850px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-block: 60px 80px; gap: 40px; }
  .hero-orbit { width: min(320px, 72vw); margin-top: 10px; }
  .research-grid, .lab-grid { grid-template-columns: 1fr; }
  .quest-panel { grid-template-columns: 1fr; gap: 30px; }
  .quest-motto { grid-column: auto; }
  .system-grid { grid-template-columns: repeat(2, 1fr); }
  .compact-section { grid-template-columns: 1fr; gap: 25px; }
}

@media (max-width: 620px) {
  .shell { width: min(100% - 32px, 1160px); }
  .site-header { min-height: 64px; flex-wrap: wrap; padding-inline: 16px; }
  .menu-toggle { display: inline-flex; }
  .site-nav { position: static; flex-basis: 100%; display: none; flex-direction: column; gap: 0; margin: 8px 0 12px; padding: 8px; border: 1px solid var(--line); border-radius: 14px; background: #0d1b2b; box-shadow: var(--shadow); }
  .site-nav[data-open="true"] { display: flex; }
  .site-nav a { padding: 12px; }
  h1 { font-size: clamp(2.5rem, 13vw, 3.8rem); }
  .hero-actions { flex-direction: column; width: 100%; gap: 12px; margin-bottom: 20px; }
  .hero-actions .button, .hero-actions .btn { width: 100%; justify-content: center; padding: 14px 20px; font-size: .92rem; }
  .section { padding-block: 64px; }
  .system-grid { grid-template-columns: 1fr; }
  .quote-grid { grid-template-columns: 1fr; }
  .quest-grid { grid-template-columns: 1fr; }
  .footer-inner { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
  .profile-photo-card { animation: none !important; }
}

/* PWA Live Update Toast */
.pwa-update-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  width: min(92vw, 420px);
  background: rgba(13, 21, 38, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(96, 217, 197, 0.45);
  border-radius: 16px;
  padding: 14px 18px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(96, 217, 197, 0.25);
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s ease;
  opacity: 0;
  pointer-events: none;
}

.pwa-update-toast.visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.pwa-toast-content {
  display: flex;
  align-items: center;
  gap: 12px;
}

.pwa-toast-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.pwa-toast-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.pwa-toast-text strong {
  font-size: 0.92rem;
  color: #fff;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.pwa-toast-text span {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.35;
}

.pwa-toast-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pwa-btn-update {
  flex: 1;
  background: linear-gradient(135deg, #60d9c5 0%, #3ba896 100%);
  color: #04121a;
  border: none;
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 0.82rem;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(96, 217, 197, 0.3);
  transition: transform 0.15s ease, filter 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.pwa-btn-update:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.pwa-btn-update:active {
  transform: translateY(0);
}

.pwa-btn-dismiss {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--muted);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}

.pwa-btn-dismiss:hover {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
}

/* Footer & Nav Manual PWA Refresh Buttons */
.pwa-refresh-btn {
  background: transparent;
  border: 1px solid rgba(96, 217, 197, 0.3);
  color: var(--accent);
  border-radius: 8px;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.2s ease;
  text-decoration: none;
}

.pwa-refresh-btn:hover {
  background: rgba(96, 217, 197, 0.15);
  border-color: var(--accent);
  box-shadow: 0 0 12px rgba(96, 217, 197, 0.25);
}

.pwa-nav-btn {
  background: rgba(96, 217, 197, 0.1);
  border: 1px solid rgba(96, 217, 197, 0.35);
  color: var(--accent);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
  margin-top: 6px;
  width: 100%;
  justify-content: center;
}

.pwa-nav-btn:hover {
  background: rgba(96, 217, 197, 0.2);
  border-color: var(--accent);
}