/* =========================================================
   Bab 1 — Fullstack Web Development | Slide Deck Interaktif
   Hanya CSS murni. Animasi 2D + 3D (CSS 3D transform).
   Tetap jalan offline (file://), tanpa dependensi eksternal.
   ========================================================= */

/* ---------- Variabel tema (default: dark) ---------- */
:root {
  --bg: #0a0e1a;
  --bg-2: #111827;
  --surface: rgba(255, 255, 255, 0.05);
  --surface-2: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.12);
  --text: #f1f5f9;
  --muted: #94a3b8;
  --brand: #6366f1;
  --brand-2: #22d3ee;
  --accent: #f472b6;
  --good: #34d399;
  --warn: #fbbf24;
  --grad: linear-gradient(120deg, #818cf8, #22d3ee 50%, #f472b6);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --radius: 18px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

/* ---------- Tema terang ---------- */
body.light {
  --bg: #eef2ff;
  --bg-2: #ffffff;
  --surface: rgba(15, 23, 42, 0.04);
  --surface-2: rgba(15, 23, 42, 0.07);
  --border: rgba(15, 23, 42, 0.12);
  --text: #0f172a;
  --muted: #475569;
  --shadow: 0 20px 60px rgba(30, 41, 59, 0.18);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
  transition: background .6s var(--ease), color .4s var(--ease);
  -webkit-font-smoothing: antialiased;
}

b { color: #fff; }
body.light b { color: #0f172a; }
kbd {
  background: var(--surface-2); border: 1px solid var(--border);
  border-bottom-width: 2px; border-radius: 6px; padding: 1px 7px;
  font-size: .82em; font-family: inherit;
}

/* =========================================================
   LATAR BELAKANG ANIMASI (orb mengambang + grid 3D)
   ========================================================= */
.bg-stage { position: fixed; inset: 0; z-index: 0; overflow: hidden; }
.bg-orb {
  position: absolute; border-radius: 50%; filter: blur(70px);
  opacity: .55; animation: float 18s ease-in-out infinite;
}
.orb-1 { width: 420px; height: 420px; background: #6366f1; top: -120px; left: -80px; }
.orb-2 { width: 360px; height: 360px; background: #22d3ee; bottom: -120px; right: -60px; animation-delay: -6s; }
.orb-3 { width: 300px; height: 300px; background: #f472b6; top: 40%; left: 55%; animation-delay: -11s; }

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(40px, -30px) scale(1.1); }
  66% { transform: translate(-30px, 25px) scale(.95); }
}

.bg-grid {
  position: absolute; inset: -50%;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  transform: perspective(420px) rotateX(60deg) translateY(-10%);
  opacity: .25; mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  animation: gridMove 20s linear infinite;
}
@keyframes gridMove { from { background-position: 0 0; } to { background-position: 0 96px; } }

/* =========================================================
   TOPBAR + PROGRESS
   ========================================================= */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 30;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px;
}
.brand { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--muted); }
.brand b { color: var(--text); }
.brand-dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--grad); box-shadow: 0 0 14px var(--brand-2);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.35); opacity: .6; } }

.topbar-right { display: flex; align-items: center; gap: 12px; }
.slide-counter { font-variant-numeric: tabular-nums; color: var(--muted); font-size: 14px; }
.icon-btn {
  width: 40px; height: 40px; border-radius: 12px; cursor: pointer;
  background: var(--surface); border: 1px solid var(--border); color: var(--text);
  font-size: 17px; transition: .25s var(--ease);
}
.icon-btn:hover { background: var(--surface-2); transform: translateY(-2px); }

.progress-track {
  position: fixed; top: 0; left: 0; right: 0; height: 4px; z-index: 31;
  background: var(--surface);
}
.progress-fill {
  height: 100%; width: 5%; background: var(--grad);
  box-shadow: 0 0 12px var(--brand-2); transition: width .5s var(--ease);
}

/* =========================================================
   PANEL MENU DAFTAR SLIDE
   ========================================================= */
.menu-panel {
  position: fixed; top: 0; right: 0; bottom: 0; width: 320px; max-width: 85vw; z-index: 40;
  background: var(--bg-2); border-left: 1px solid var(--border);
  box-shadow: var(--shadow); padding: 70px 14px 20px;
  transform: translateX(105%); transition: transform .4s var(--ease);
  overflow-y: auto;
}
.menu-panel.open { transform: translateX(0); }
.menu-head { font-size: 13px; text-transform: uppercase; letter-spacing: .14em; color: var(--muted); padding: 0 10px 10px; }
.menu-list { list-style: none; counter-reset: m; }
.menu-list li {
  counter-increment: m; padding: 10px 12px; border-radius: 10px; cursor: pointer;
  font-size: 14px; color: var(--muted); transition: .2s var(--ease);
  display: flex; gap: 10px; align-items: center;
}
.menu-list li::before { content: counter(m, decimal-leading-zero); font-size: 11px; opacity: .6; min-width: 22px; }
.menu-list li:hover { background: var(--surface); color: var(--text); }
.menu-list li.current { background: var(--surface-2); color: var(--text); border-left: 3px solid var(--brand-2); }

/* =========================================================
   DECK & SLIDE
   ========================================================= */
.deck { position: relative; z-index: 10; height: 100vh; }
.slide {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  padding: 90px 6vw 80px;
  opacity: 0; visibility: hidden; pointer-events: none;
  transform: translateY(34px) scale(.985);
  transition: opacity .55s var(--ease), transform .55s var(--ease), visibility .55s;
}
.slide.is-active { opacity: 1; visibility: visible; pointer-events: auto; transform: none; }
.slide.exit-left { transform: translateY(-26px) scale(.985); }

.slide-inner { width: 100%; max-width: 1040px; }
.two-col {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center;
}

/* ---------- Tipografi ---------- */
.kicker, .eyebrow {
  display: inline-block; font-size: 13px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--brand-2); font-weight: 700; margin-bottom: 14px;
  padding: 5px 12px; border: 1px solid var(--border); border-radius: 999px; background: var(--surface);
}
h1 { font-size: clamp(34px, 6vw, 64px); line-height: 1.05; font-weight: 800; }
h2 { font-size: clamp(28px, 4.4vw, 46px); line-height: 1.1; font-weight: 800; margin-bottom: 18px; }
h3 { font-size: 20px; margin: 6px 0; }
.lead { font-size: clamp(16px, 2.1vw, 21px); color: var(--muted); line-height: 1.6; max-width: 60ch; }
.grad-text {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* =========================================================
   COVER + KUBUS 3D
   ========================================================= */
.cover { text-align: center; }
.cover-title { margin: 14px 0; }
.cover-sub { color: var(--muted); font-size: clamp(16px, 2.4vw, 22px); }
.cover-hint { margin-top: 26px; color: var(--muted); font-size: 14px; }

.cube-scene { perspective: 900px; width: 160px; height: 160px; margin: 0 auto 18px; }
.cube {
  position: relative; width: 100%; height: 100%;
  transform-style: preserve-3d; animation: spin 16s linear infinite;
}
@keyframes spin {
  from { transform: rotateX(-22deg) rotateY(0deg); }
  to { transform: rotateX(-22deg) rotateY(360deg); }
}
.face {
  position: absolute; inset: 0; display: grid; place-items: center;
  font-size: 34px; font-weight: 800; color: #fff;
  border: 1.5px solid rgba(255, 255, 255, .35); border-radius: 14px;
  background: linear-gradient(135deg, rgba(99, 102, 241, .55), rgba(34, 211, 238, .35));
  backdrop-filter: blur(2px); box-shadow: inset 0 0 30px rgba(255, 255, 255, .12);
}
.f-front  { transform: rotateY(0deg)   translateZ(80px); }
.f-back   { transform: rotateY(180deg) translateZ(80px); }
.f-right  { transform: rotateY(90deg)  translateZ(80px); }
.f-left   { transform: rotateY(-90deg) translateZ(80px); }
.f-top    { transform: rotateX(90deg)  translateZ(80px); }
.f-bottom { transform: rotateX(-90deg) translateZ(80px); }

/* =========================================================
   ANIMASI REVEAL (muncul saat slide aktif)
   ========================================================= */
.reveal { opacity: 0; transform: translateY(20px); }
.slide.is-active .reveal {
  animation: revealUp .6s var(--ease) forwards;
  animation-delay: var(--d, 0s);
}
@keyframes revealUp { to { opacity: 1; transform: none; } }

/* =========================================================
   KOMPONEN KONTEN
   ========================================================= */
.pill-row { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0; }
.pill {
  padding: 12px 20px; border-radius: 14px; font-weight: 700; font-size: 16px;
  background: var(--surface-2); border: 1px solid var(--border);
  transition: .25s var(--ease);
}
.pill:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--brand-2); }

.analogy {
  margin-top: 22px; padding: 16px 20px; border-radius: 14px; line-height: 1.55;
  background: var(--surface); border: 1px dashed var(--border); color: var(--muted);
  font-size: 15px;
}

.check-list { list-style: none; margin: 18px 0; }
.check-list li {
  padding: 10px 0 10px 34px; position: relative; color: var(--muted); font-size: 17px;
}
.check-list li::before {
  content: "✓"; position: absolute; left: 0; top: 9px;
  width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center;
  font-size: 12px; color: #042f2e; background: var(--good); font-weight: 900;
}

.code-chip {
  margin-top: 18px; display: inline-block; padding: 10px 16px; border-radius: 10px;
  background: var(--surface-2); border: 1px solid var(--border); font-size: 14px; color: var(--muted);
}

/* ---------- Browser mockup (Frontend) ---------- */
.demo-frame { display: flex; justify-content: center; }
.browser-mock {
  width: 100%; max-width: 380px; border-radius: 14px; overflow: hidden;
  background: var(--bg-2); border: 1px solid var(--border); box-shadow: var(--shadow);
}
.browser-bar { display: flex; align-items: center; gap: 6px; padding: 10px 12px; background: var(--surface-2); }
.browser-bar i { width: 11px; height: 11px; border-radius: 50%; background: #ef4444; }
.browser-bar i:nth-child(2) { background: #f59e0b; } .browser-bar i:nth-child(3) { background: #22c55e; }
.browser-bar span { margin-left: 10px; font-size: 12px; color: var(--muted); }
.browser-body { padding: 22px; }
.mock-btn {
  display: inline-block; padding: 10px 18px; border-radius: 10px; font-weight: 700; color: #fff;
  background: var(--grad); animation: bob 2.2s ease-in-out infinite;
}
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
.mock-line { height: 12px; border-radius: 6px; background: var(--surface-2); margin-top: 16px; }
.mock-line.w80 { width: 80%; } .mock-line.w60 { width: 60%; }
.mock-card {
  margin-top: 16px; padding: 16px; border-radius: 12px; text-align: center; font-weight: 700;
  background: var(--surface); border: 1px solid var(--border); transition: .3s var(--ease);
}
.mock-card:hover { transform: scale(1.05) rotate(-1deg); border-color: var(--accent); color: var(--accent); }

/* ---------- Gear (Backend) ---------- */
.gear-stack { position: relative; height: 200px; }
.gear { position: absolute; font-size: 70px; filter: drop-shadow(0 6px 14px rgba(0,0,0,.3)); }
.g1 { top: 20px; left: 30%; animation: rot 6s linear infinite; }
.g2 { top: 70px; left: 48%; font-size: 90px; animation: rot 8s linear infinite reverse; }
.g3 { top: 110px; left: 30%; font-size: 56px; animation: rot 5s linear infinite; }
@keyframes rot { to { transform: rotate(360deg); } }

/* ---------- Database cylinder (3D) ---------- */
.db-cyl {
  width: 170px; height: 200px; margin: 0 auto; position: relative;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
}
.db-disc {
  width: 150px; height: 46px; border-radius: 50%;
  background: linear-gradient(180deg, #818cf8, #4f46e5);
  border: 2px solid rgba(255,255,255,.3);
  box-shadow: 0 10px 0 rgba(79, 70, 229, .55);
  animation: dbpulse 3s ease-in-out infinite;
}
.db-disc:nth-child(2) { animation-delay: .3s; } .db-disc:nth-child(3) { animation-delay: .6s; }
@keyframes dbpulse { 0%, 100% { transform: scaleX(1); } 50% { transform: scaleX(1.05); filter: brightness(1.15); } }
.db-label { margin-top: 14px; font-weight: 800; letter-spacing: .1em; color: var(--brand-2); }

/* ---------- Rocket (Deployment) ---------- */
.rocket-track { position: relative; height: 120px; margin: 30px 0; display: flex; align-items: center; }
.rocket-line { flex: 1; height: 4px; border-radius: 4px; background: var(--surface-2); position: relative; overflow: hidden; }
.rocket-line::after {
  content: ""; position: absolute; inset: 0; background: var(--grad);
  transform-origin: left; animation: fill 3s var(--ease) infinite;
}
@keyframes fill { 0% { transform: scaleX(0); } 70%, 100% { transform: scaleX(1); } }
.rocket { font-size: 46px; animation: launch 3s var(--ease) infinite; }
@keyframes launch { 0% { transform: translateX(0) rotate(0); } 70%, 100% { transform: translateX(min(40vw, 520px)) rotate(8deg); } }
.rocket-flag { font-weight: 800; color: var(--good); margin-left: 14px; }

/* ---------- Arsitektur 3D node ---------- */
.arch3d {
  display: flex; flex-direction: column; gap: 18px; align-items: center;
  perspective: 800px;
}
.node {
  width: 220px; padding: 18px; border-radius: 16px; text-align: center; font-size: 34px;
  background: var(--surface); border: 1px solid var(--border); position: relative;
  transform: rotateX(8deg); transition: .4s var(--ease); opacity: .45;
}
.node span { display: block; font-size: 14px; font-weight: 700; color: var(--muted); margin-top: 4px; }
.node.active {
  opacity: 1; transform: rotateX(0) scale(1.05) translateZ(20px);
  border-color: var(--brand-2); box-shadow: 0 0 30px rgba(34, 211, 238, .35);
}
.node.active span { color: var(--text); }
.arch3d-all .node { opacity: 1; }
/* garis penghubung antar node */
.arch3d .node:not(:last-child)::after {
  content: "↓"; position: absolute; bottom: -20px; left: 50%; transform: translateX(-50%);
  font-size: 18px; color: var(--brand-2);
}

/* ---------- Kartu info ---------- */
.card-row { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 26px; }
.card-row.triple { grid-template-columns: repeat(3, 1fr); }
.info-card {
  padding: 24px; border-radius: var(--radius); background: var(--surface);
  border: 1px solid var(--border); transition: .3s var(--ease);
}
.info-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--brand-2); }
.info-card p { color: var(--muted); line-height: 1.55; margin-top: 4px; }
.info-card small { display: block; margin-top: 10px; color: var(--brand-2); font-size: 13px; }
.ic-emoji { font-size: 40px; margin-bottom: 6px; }
.info-card.safe { border-color: rgba(52, 211, 153, .4); }
.info-card.warn { border-color: rgba(251, 191, 36, .4); }
.lock-anim { display: inline-block; animation: lockWiggle 2.4s ease-in-out infinite; }
@keyframes lockWiggle { 0%, 90%, 100% { transform: rotate(0); } 93% { transform: rotate(-12deg); } 96% { transform: rotate(12deg); } }

/* ---------- DNS flow ---------- */
.dns-flow { display: flex; flex-direction: column; gap: 14px; align-items: center; }
.dns-step {
  padding: 16px 24px; border-radius: 14px; font-weight: 700; font-size: 18px;
  background: var(--surface-2); border: 1px solid var(--border);
}
.dns-step.ip { color: var(--brand-2); font-family: ui-monospace, monospace; }
.dns-arrow { color: var(--accent); font-weight: 800; animation: bob 1.8s ease-in-out infinite; }

/* ---------- Request & Response ---------- */
.rr-stage { display: flex; align-items: center; gap: 18px; margin: 36px 0 18px; }
.rr-end {
  font-size: 40px; text-align: center; padding: 14px 18px; border-radius: 14px;
  background: var(--surface); border: 1px solid var(--border); min-width: 120px;
}
.rr-end span { display: block; font-size: 14px; color: var(--muted); font-weight: 700; }
.rr-wire { flex: 1; position: relative; height: 70px; }
.rr-wire::before {
  content: ""; position: absolute; top: 50%; left: 0; right: 0; height: 3px;
  background: var(--surface-2); border-radius: 3px;
}
.packet {
  position: absolute; padding: 6px 12px; border-radius: 999px; font-size: 13px; font-weight: 700;
  white-space: nowrap; opacity: 0;
}
.packet-req { top: 4px; left: 0; background: var(--brand); color: #fff; }
.packet-res { bottom: 4px; right: 0; background: var(--good); color: #042f2e; }
.rr-stage.play .packet-req { animation: sendReq 1.4s var(--ease) forwards; }
.rr-stage.play .packet-res { animation: sendRes 1.4s var(--ease) 1.4s forwards; }
@keyframes sendReq { 0% { opacity: 0; transform: translateX(0); } 15% { opacity: 1; } 100% { opacity: 1; transform: translateX(calc(100% + var(--wire, 320px))); } }
@keyframes sendRes { 0% { opacity: 0; transform: translateX(0); } 15% { opacity: 1; } 100% { opacity: 1; transform: translateX(calc(-1 * (100% + var(--wire, 320px)))); } }

/* ---------- Flow studi kasus ---------- */
.flow-line {
  display: flex; align-items: center; justify-content: space-between; gap: 6px;
  margin: 40px 0 18px; position: relative; flex-wrap: wrap;
}
.flow-node {
  font-size: 30px; text-align: center; padding: 12px 14px; border-radius: 14px;
  background: var(--surface); border: 1px solid var(--border); transition: .35s var(--ease); min-width: 92px;
}
.flow-node span { display: block; font-size: 12px; font-weight: 700; color: var(--muted); margin-top: 2px; }
.flow-node.hot { border-color: var(--brand-2); box-shadow: 0 0 26px rgba(34,211,238,.4); transform: translateY(-6px) scale(1.06); }
.flow-seg { flex: 1; height: 3px; background: var(--surface-2); border-radius: 3px; min-width: 24px; }
.flow-dot {
  position: absolute; top: -34px; left: 0; font-size: 26px; opacity: 0;
  transition: left .6s var(--ease), opacity .3s;
}
.flow-dot.show { opacity: 1; }
.flow-caption { color: var(--muted); margin: 14px 0; min-height: 24px; font-size: 16px; }

/* ---------- Recap ---------- */
.recap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 26px; }
.recap-item {
  padding: 18px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border);
  transition: .3s var(--ease);
}
.recap-item:hover { transform: translateY(-5px); border-color: var(--brand-2); }
.recap-item b { display: block; color: var(--brand-2); font-size: 17px; margin-bottom: 6px; }
.recap-item span { color: var(--muted); font-size: 14px; line-height: 1.45; }

/* =========================================================
   SLIDE TUGAS / LATIHAN
   ========================================================= */
.slide-task .slide-inner { max-width: 880px; }
.task-badge {
  display: inline-block; padding: 7px 16px; border-radius: 999px; font-weight: 800;
  font-size: 13px; letter-spacing: .08em; margin-bottom: 16px;
  background: rgba(99, 102, 241, .18); border: 1px solid var(--brand); color: #c7d2fe;
}
.task-badge.gold { background: rgba(251, 191, 36, .15); border-color: var(--warn); color: var(--warn); }
.task-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin: 24px 0; }
.task-list, .task-steps { list-style: none; }
.task-list li, .task-steps li {
  padding: 14px 18px; margin-bottom: 12px; border-radius: 12px; font-size: 17px;
  background: var(--surface); border: 1px solid var(--border); transition: .25s var(--ease);
}
.task-list li:hover, .task-steps li:hover { transform: translateX(6px); border-color: var(--brand-2); }
.task-steps { counter-reset: step; margin: 22px 0; }
.task-steps li { counter-increment: step; padding-left: 56px; position: relative; line-height: 1.5; }
.task-steps li::before {
  content: counter(step); position: absolute; left: 16px; top: 50%; transform: translateY(-50%);
  width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center;
  font-weight: 800; font-size: 14px; color: #fff; background: var(--grad);
}
.task-foot {
  margin-top: 20px; padding: 16px 20px; border-radius: 14px; line-height: 1.5;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--muted); font-size: 15px;
}
.task-foot.gold { border-color: rgba(251, 191, 36, .35); }
.task-foot code { background: var(--bg); padding: 2px 7px; border-radius: 6px; font-size: .9em; color: var(--brand-2); }
.finish { margin-top: 22px; text-align: center; font-size: 22px; font-weight: 800; color: var(--good); }

.btn-ghost {
  margin-top: 18px; padding: 12px 22px; border-radius: 12px; cursor: pointer; font-size: 15px; font-weight: 700;
  color: var(--text); background: var(--surface-2); border: 1px solid var(--border); transition: .25s var(--ease);
}
.btn-ghost:hover { background: var(--brand); color: #fff; border-color: var(--brand); transform: translateY(-2px); }

/* =========================================================
   NAVIGASI
   ========================================================= */
.nav-controls { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); z-index: 30; display: flex; gap: 12px; }
.nav-btn {
  width: 52px; height: 52px; border-radius: 50%; cursor: pointer; font-size: 26px; line-height: 1;
  background: var(--surface); border: 1px solid var(--border); color: var(--text);
  transition: .25s var(--ease); backdrop-filter: blur(8px);
}
.nav-btn:hover:not(:disabled) { background: var(--brand); color: #fff; border-color: var(--brand); transform: translateY(-3px); }
.nav-btn:disabled { opacity: .3; cursor: not-allowed; }

.kbd-hint { position: fixed; bottom: 26px; right: 22px; z-index: 30; font-size: 12px; color: var(--muted); }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 860px) {
  .two-col, .card-row, .card-row.triple, .task-cols, .recap-grid { grid-template-columns: 1fr; }
  .slide { padding: 84px 6vw 90px; }
  .kbd-hint { display: none; }
  .demo-frame, .gear-stack, .db-cyl, .arch3d { margin-top: 10px; }
  .gear-stack { height: 160px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001s !important; animation-iteration-count: 1 !important; }
}