:root {
  color-scheme: dark;
  --bg: #030604;
  --bg2: #07120a;
  --ink: #f2fff6;
  --muted: #9bb8a4;
  --acid: #9cff31;
  --moss: #1dd15d;
  --mud: #8a5a32;
  --danger: #ff5a36;
  --ice: #9ae7ff;
  --card: rgba(9, 20, 13, 0.74);
  --card-strong: rgba(14, 35, 20, 0.92);
  --line: rgba(242, 255, 246, 0.16);
  --glow: 0 0 32px rgba(156, 255, 49, 0.25), 0 0 80px rgba(29, 209, 93, 0.14);
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 0%, rgba(156,255,49,.18), transparent 28rem),
    radial-gradient(circle at 85% 15%, rgba(154,231,255,.16), transparent 30rem),
    linear-gradient(135deg, #020302 0%, #07120a 50%, #010101 100%);
  overflow-x: hidden;
}

.noise {
  position: fixed; inset: 0; pointer-events: none; opacity: .12; z-index: 1;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 240 240' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.95' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.65'/%3E%3C/svg%3E");
  mix-blend-mode: screen;
}
.orb { position: fixed; width: 22rem; height: 22rem; border-radius: 50%; filter: blur(70px); pointer-events: none; z-index: 0; animation: float 9s ease-in-out infinite; }
.orb-a { background: rgba(156,255,49,.16); top: 8rem; left: -8rem; }
.orb-b { background: rgba(255,90,54,.12); right: -9rem; bottom: 8rem; animation-delay: -3s; }

.topbar {
  position: sticky; top: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1rem clamp(1rem, 3vw, 2.5rem);
  backdrop-filter: blur(18px);
  background: rgba(3, 6, 4, .68);
  border-bottom: 1px solid var(--line);
}
.brand, nav a { color: var(--ink); text-decoration: none; text-transform: uppercase; letter-spacing: .08em; font-size: .78rem; font-weight: 800; }
.brand { display: inline-flex; align-items: center; gap: .65rem; }
.brand-mark { display: grid; place-items: center; width: 2rem; height: 2rem; border: 1px solid var(--line); border-radius: 50%; background: rgba(156,255,49,.1); }
nav { display: flex; gap: clamp(.75rem, 2vw, 1.6rem); }
nav a { color: var(--muted); transition: color .2s, text-shadow .2s; }
nav a:hover { color: var(--acid); text-shadow: 0 0 16px rgba(156,255,49,.5); }

main { position: relative; z-index: 2; }
.scene, .panel, .checklist-wrap, .garage { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; }
.hero { min-height: calc(100vh - 4rem); display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr); align-items: center; gap: clamp(2rem, 6vw, 6rem); padding: 5rem 0; }
.hero-copy h1, h2 { margin: 0; font-size: clamp(2.6rem, 7vw, 6.6rem); line-height: .86; letter-spacing: -.07em; text-transform: uppercase; }
h2 { font-size: clamp(2rem, 5vw, 4.8rem); }
.kicker, .mono { margin: 0 0 1rem; color: var(--acid); font-size: .75rem; letter-spacing: .18em; text-transform: uppercase; font-weight: 900; }
.lede, .section-title p, #summary { color: var(--muted); font-size: clamp(1rem, 1.8vw, 1.2rem); line-height: 1.7; max-width: 62ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2rem; }
.button { border: 1px solid var(--line); border-radius: 999px; padding: 1rem 1.3rem; color: var(--ink); background: rgba(242,255,246,.07); font-weight: 900; text-transform: uppercase; letter-spacing: .08em; cursor: pointer; text-decoration: none; transition: transform .2s, box-shadow .2s, background .2s; }
.button:hover { transform: translateY(-2px); box-shadow: var(--glow); }
.primary { background: linear-gradient(135deg, var(--acid), var(--moss)); color: #041006; border-color: transparent; }
.ghost { background: rgba(242,255,246,.06); }
.small { padding: .72rem 1rem; font-size: .72rem; }

.hud { border: 1px solid var(--line); background: linear-gradient(180deg, rgba(10,32,18,.84), rgba(4,9,6,.72)); border-radius: 2rem; padding: 1.25rem; box-shadow: var(--glow); transform: rotate(1.2deg); }
.hud-header { display: flex; gap: .4rem; margin-bottom: 1rem; }
.hud-header span { width: .65rem; height: .65rem; border-radius: 50%; background: var(--acid); box-shadow: 0 0 18px rgba(156,255,49,.7); }
.ring { --progress: 0deg; width: 11rem; height: 11rem; border-radius: 50%; display: grid; place-items: center; margin: 1.2rem auto; background: conic-gradient(var(--acid) var(--progress), rgba(242,255,246,.1) 0); position: relative; animation: pulse 2.8s infinite; }
.ring:before { content: ''; position: absolute; inset: .8rem; border-radius: 50%; background: #061009; border: 1px solid var(--line); }
.ring span { position: relative; font-size: 2.1rem; font-weight: 900; }
.hud li { margin: .7rem 0; color: var(--muted); }

.panel, .checklist-wrap, .garage { padding: clamp(3rem, 8vw, 6rem) 0; }
.section-title { margin-bottom: 2rem; }
.compact { display: grid; gap: .5rem; }
.trip-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
label, fieldset { display: grid; gap: .55rem; padding: 1rem; border: 1px solid var(--line); border-radius: 1.2rem; background: var(--card); color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 900; }
select, textarea, input[type="number"], input[type="text"] { width: 100%; border: 1px solid var(--line); border-radius: .9rem; background: rgba(0,0,0,.34); color: var(--ink); padding: .9rem; font: inherit; text-transform: none; letter-spacing: 0; font-weight: 600; outline: none; }
[data-conditional][hidden] { display: none !important; }
textarea { resize: vertical; }
fieldset { margin: 0; }
.fieldset-wide { grid-column: span 2; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.fieldset-wide legend { grid-column: 1 / -1; }
legend { color: var(--acid); padding: 0 .5rem; }
.check { display: flex; align-items: center; gap: .7rem; padding: .25rem 0; border: 0; border-radius: 0; background: transparent; text-transform: none; letter-spacing: 0; font-weight: 700; }
.check input, .item input { accent-color: var(--acid); width: 1.2rem; height: 1.2rem; }
.notes { grid-column: span 2; }
.generate { justify-content: center; align-items: center; min-height: 100%; }
.template-panel { margin-top: 1rem; display: grid; grid-template-columns: 1fr minmax(260px, .7fr); gap: 1rem; padding: 1rem; border: 1px solid var(--line); border-radius: 1.3rem; background: linear-gradient(135deg, rgba(156,255,49,.08), rgba(242,255,246,.03)); }
.template-panel h3 { margin: 0; text-transform: uppercase; letter-spacing: -.03em; font-size: clamp(1.2rem, 2vw, 1.8rem); }
.template-panel p { color: var(--muted); line-height: 1.55; margin: .35rem 0 0; }
.template-controls { display: grid; align-content: start; gap: .7rem; }
.template-list { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: .6rem; min-height: 2.2rem; }
.template-chip { display: inline-flex; align-items: center; gap: .45rem; border: 1px solid var(--line); border-radius: 999px; padding: .35rem .45rem .35rem .8rem; background: rgba(0,0,0,.28); color: var(--ink); font-weight: 800; }
.template-chip button { border: 0; border-radius: 999px; padding: .45rem .65rem; background: rgba(156,255,49,.16); color: var(--ink); cursor: pointer; font-weight: 900; }
.template-chip .delete-template { background: rgba(255,90,54,.18); }

.progress-card { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 1.2rem; padding: 1rem; border: 1px solid var(--line); border-radius: 1.3rem; background: var(--card-strong); margin-bottom: 1rem; }
.progress-card strong { font-size: 2rem; }
.progress-track { height: .8rem; background: rgba(242,255,246,.09); border-radius: 999px; overflow: hidden; }
#progress-bar { height: 100%; width: 0%; background: linear-gradient(90deg, var(--danger), var(--acid), var(--ice)); border-radius: inherit; transition: width .35s cubic-bezier(.2,.9,.2,1); }
.empty-state { display: grid; place-items: center; gap: .8rem; min-height: 18rem; border: 1px dashed var(--line); border-radius: 1.5rem; color: var(--muted); background: rgba(0,0,0,.2); text-align: center; }
.empty-state span { font-size: 4rem; animation: wheelie 1.6s ease-in-out infinite; }
.list-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.category { border: 1px solid var(--line); border-radius: 1.3rem; background: var(--card); overflow: hidden; animation: rise .45s ease both; }
.category h3 { margin: 0; padding: 1rem; background: rgba(156,255,49,.08); text-transform: uppercase; letter-spacing: .08em; }
.item { display: grid; grid-template-columns: auto 1fr auto; gap: .75rem; align-items: start; padding: .75rem 1rem; border-top: 1px solid rgba(242,255,246,.08); cursor: pointer; transition: opacity .2s, transform .2s, background .2s; }
.item:hover { background: rgba(156,255,49,.06); }
.item span { line-height: 1.45; }
.item label { display: block; padding: 0; border: 0; border-radius: 0; background: transparent; color: inherit; font-size: inherit; text-transform: none; letter-spacing: 0; font-weight: inherit; cursor: pointer; }
.item small { display: block; color: var(--muted); margin-top: .18rem; }
.item.done span { color: rgba(242,255,246,.52); text-decoration: line-through; }
.skip-item { border: 1px solid rgba(255,90,54,.28); border-radius: 999px; width: 2rem; height: 2rem; background: rgba(255,90,54,.12); color: var(--danger); cursor: pointer; font-size: 1rem; line-height: 1; transition: transform .2s, background .2s; }
.skip-item:hover { transform: scale(1.08) rotate(-6deg); background: rgba(255,90,54,.22); }
.item.skipped { opacity: .45; transform: scale(.985); background: rgba(255,90,54,.06); }
.item.skipped span { color: rgba(242,255,246,.42); text-decoration: line-through; }
.item.skipped input { display: none; }
.item.priority span:after { content: '  CRITICAL'; color: var(--danger); font-size: .65rem; letter-spacing: .1em; font-weight: 900; text-decoration: none; }

.category-strip { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; }
.category-strip article { min-height: 10rem; padding: 1rem; border: 1px solid var(--line); border-radius: 1.3rem; background: linear-gradient(180deg, rgba(242,255,246,.07), rgba(242,255,246,.02)); display: flex; flex-direction: column; justify-content: space-between; }
.category-strip strong { text-transform: uppercase; letter-spacing: .08em; }
.category-strip span { color: var(--muted); line-height: 1.5; }

#confetti { position: fixed; inset: 0; pointer-events: none; z-index: 20; overflow: hidden; }
.shard { position: absolute; width: .55rem; height: 1rem; background: var(--acid); animation: confetti 1.5s ease-out forwards; }
.reveal { animation: reveal .7s ease both; }
.complete-flash { animation: flash .8s ease; }

@keyframes reveal { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: none; } }
@keyframes float { 50% { transform: translateY(25px) scale(1.08); } }
@keyframes pulse { 50% { filter: drop-shadow(0 0 20px rgba(156,255,49,.45)); } }
@keyframes wheelie { 50% { transform: translateY(-8px) rotate(-8deg); } }
@keyframes rise { from { opacity: 0; transform: translateY(16px) scale(.98); } to { opacity: 1; transform: none; } }
@keyframes confetti { to { transform: translate(var(--x), 105vh) rotate(720deg); opacity: 0; } }
@keyframes flash { 50% { box-shadow: 0 0 0 9999px rgba(156,255,49,.12); } }

@media (max-width: 900px) {
  .hero, .trip-grid, .list-grid, .category-strip, .template-panel { grid-template-columns: 1fr; }
  .notes { grid-column: auto; }
  .progress-card { grid-template-columns: 1fr; }
  nav { display: none; }
  .hero { padding-top: 3rem; }
}