/* Tokens: dark first; light redefines the same names. */
:root {
  --bg: #070B14; --bg2: #0B1120; --panel: rgba(11, 17, 32, .9); --line: rgba(150, 170, 230, .14);
  --ink: #E9EDF6; --quiet: #8E98AE; --blue: #8EA8FF; --on-blue: #070B14; --ember: #FF7A57; --mint: #5BE3A8;
  --glow: rgba(120, 150, 255, .35); --sheen: rgba(142, 168, 255, .16);
  --font: 'Source Serif 4', Georgia, serif;
  --deva: 'Noto Serif Devanagari', 'Kohinoor Devanagari', serif;
  color-scheme: dark; interpolate-size: allow-keywords;
}
[data-theme="light"] {
  --bg: #F4F6FB; --bg2: #FFFFFF; --panel: rgba(255, 255, 255, .92); --line: rgba(24, 35, 59, .12);
  --ink: #111A2E; --quiet: #56607A; --blue: #2541B2; --on-blue: #fff; --ember: #C2410C; --mint: #0F7A4F;
  --glow: rgba(37, 65, 178, .2); --sheen: rgba(37, 65, 178, .07);
  color-scheme: light;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body { margin: 0; color: var(--ink); font: 300 1.125rem/1.65 var(--font); font-variant-numeric: tabular-nums; -webkit-font-smoothing: antialiased;
  background: radial-gradient(1100px 700px at 75% -10%, var(--sheen), transparent 60%) no-repeat, var(--bg); }
h1, h2, h3 { font-weight: 300; margin: 0 0 .5em; text-wrap: balance; }
h2 { font-size: clamp(2rem, 1.4rem + 2.4vw, 3.25rem); line-height: 1.12; letter-spacing: -.01em; max-width: 20ch; }
h3 { font-size: 1.25rem; font-weight: 400; margin: 0; }
p { margin: 0 0 1em; }
a { color: var(--blue); text-underline-offset: .2em; }
b { font-weight: 400; }
[lang="hi"] { font-family: var(--deva); }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.quiet { color: var(--quiet); font-size: 1rem; }
.intro { color: var(--quiet); max-width: 40rem; margin-bottom: 3rem; }

.wrap { max-width: 76rem; margin-inline: auto; padding: 9rem clamp(1.25rem, 4vw, 3rem) 0; }
.split { display: grid; grid-template-columns: 1fr 1.1fr; gap: 4rem; align-items: start; }
.panel { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 40px 90px -50px var(--glow); }
.panel::before { content: ''; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; pointer-events: none;
  background: linear-gradient(150deg, var(--glow), transparent 35%, transparent 70%, var(--sheen));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; }

.btn { display: inline-flex; align-items: center; min-height: 44px; padding: 0 1.25rem; border: 1px solid var(--blue); border-radius: 999px; background: var(--blue); color: var(--on-blue); font: 400 1rem var(--font); text-decoration: none; cursor: pointer; box-shadow: 0 10px 30px -10px var(--glow); transition: filter .2s, box-shadow .2s, border-color .2s; }
.btn:hover { filter: brightness(1.12); box-shadow: 0 10px 36px -6px var(--glow); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: default; }
.btn.ghost { background: none; color: var(--ink); border-color: var(--line); box-shadow: none; }
.btn.ghost:hover { border-color: var(--blue); }
.link { background: none; border: 0; padding: 0; color: var(--blue); font: inherit; text-decoration: underline; text-underline-offset: .2em; cursor: pointer; }
.skip { position: absolute; left: -999rem; }
.skip:focus { left: 1rem; top: 1rem; z-index: 10; padding: .5rem 1rem; background: var(--bg); }

/* Bar */
.bar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 1.5rem; padding: .75rem clamp(1.25rem, 4vw, 3rem); padding-top: calc(.75rem + env(safe-area-inset-top)); background: color-mix(in srgb, var(--bg) 72%, transparent); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.progress { position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: linear-gradient(90deg, var(--blue), var(--mint)); box-shadow: 0 0 10px var(--glow); transform: scaleX(0); transform-origin: 0 0; }
.mark { display: flex; align-items: center; gap: .6rem; font-size: 1.25rem; color: var(--ink); text-decoration: none; margin-right: auto; }
.mark i { width: .55rem; height: .55rem; border-radius: 50%; background: var(--blue); box-shadow: 0 0 12px 2px var(--glow); }
.bar nav { display: flex; gap: 1.75rem; }
.bar nav a { color: var(--quiet); text-decoration: none; font-size: 1rem; }
.bar nav a:hover { color: var(--ink); }
.theme { width: 44px; height: 44px; display: grid; place-items: center; background: none; border: 0; color: var(--ink); cursor: pointer; }
.theme svg { width: 20px; fill: none; stroke: currentColor; stroke-width: 1.4; }
.theme path { fill: currentColor; }

/* The note, over the live flow of spend */
.note { position: relative; }
.sky { position: absolute; inset: 0; pointer-events: none; -webkit-mask-image: linear-gradient(#000 calc(100% - 25vh), transparent); mask-image: linear-gradient(#000 calc(100% - 25vh), transparent); }
.stage { position: sticky; top: 0; height: 100svh; overflow: hidden; }
.stage canvas { display: block; width: 100%; height: 100%; }
.lbl { position: absolute; left: 0; top: 0; translate: -50% -150%; font-size: .875rem; color: var(--quiet); white-space: nowrap; transition: opacity .3s; }
.lbl.r { translate: 14px -50%; color: var(--ink); }
.lbl.hub { translate: -50% 0; color: var(--blue); }
.lbl.waste { color: var(--ember); translate: -20% -50%; }
.lbl.saved { color: var(--mint); translate: -50% 0; opacity: 0; }
.intro .hero { visibility: hidden; }
.note .wrap { position: relative; padding-top: 0; }
.hero { min-height: calc(100svh - 4.5rem); display: flex; flex-direction: column; justify-content: center; max-width: 33rem; padding-block: 3rem; }
.context { color: var(--quiet); font-size: 1rem; max-width: 30rem; margin-bottom: 2.5rem; }
.date { color: var(--blue); margin-bottom: .75rem; }
.hero h1 { font-size: clamp(2.2rem, 1.3rem + 3.2vw, 3.9rem); line-height: 1.1; letter-spacing: -.015em; margin-bottom: 1.25rem; }
.sign { color: var(--quiet); margin-bottom: 2.5rem; }
.ctas { display: flex; flex-wrap: wrap; gap: .75rem; }

.letter { max-width: 38rem; padding: .5rem 1.75rem 1.75rem; }
.finds { list-style: none; margin: 0; padding: 0; }
.finds li + li { border-top: 1px solid var(--line); }
.finds summary { display: grid; grid-template-columns: 3.5rem 1fr auto 1rem; gap: .25rem 1rem; align-items: baseline; padding: 1.1rem 0; cursor: pointer; list-style: none; }
.finds summary::-webkit-details-marker { display: none; }
.finds summary::after { content: ''; width: .45rem; height: .45rem; border: solid var(--quiet); border-width: 0 1.5px 1.5px 0; transform: translateY(-.2rem) rotate(45deg); transition: transform .25s; }
.finds [open] summary::after { transform: rotate(-135deg); }
.finds summary:hover .what { color: var(--blue); }
.finds time { color: var(--quiet); font-size: 1rem; }
.amt { color: var(--ember); white-space: nowrap; transition: color .6s, text-shadow .6s; text-shadow: 0 0 18px color-mix(in srgb, var(--ember) 45%, transparent); }
.approved .amt { color: var(--mint); text-shadow: 0 0 18px color-mix(in srgb, var(--mint) 45%, transparent); }
.why { padding: 0 2rem 1.25rem 4.5rem; }
details::details-content { height: 0; overflow: clip; transition: height .35s ease, content-visibility .35s allow-discrete; }
details[open]::details-content { height: auto; }

.bars { margin: 0 0 1.25rem; font-size: 1rem; }
.bars p { display: grid; grid-template-columns: 7.5rem 1fr 3.5rem; gap: 1rem; align-items: center; margin: 0 0 .4rem; }
.bars span:last-child { text-align: right; }
.bars i { height: .45rem; width: calc(var(--w) * 100%); background: var(--quiet); border-radius: 9px; }
.bars .now i { background: var(--ember); box-shadow: 0 0 14px var(--ember); }
.bars .fix i { background: var(--mint); box-shadow: 0 0 14px var(--mint); }
.bars figcaption { color: var(--quiet); margin-top: .5rem; }

.ask { margin-top: .75rem; padding: 1.5rem; border-radius: 12px; background: var(--sheen); border: 1px solid var(--line); }
.q { font-size: 1.25rem; }
.choose { display: flex; flex-wrap: wrap; gap: .75rem; margin: 0; }
.ask.done .choose { display: none; }
.reply { margin: 0; font-size: 1.125rem; }
.tick { width: 2.4rem; vertical-align: -.35rem; margin-right: .6rem; fill: none; stroke: var(--mint); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; filter: drop-shadow(0 0 6px var(--mint)); stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw .7s .1s cubic-bezier(.4, 0, .2, 1) forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.redo { margin: 1rem 0 0; font-size: 1rem; }
.after { max-width: 34rem; padding-block: 3rem 2rem; color: var(--quiet); }

/* Control: a three-stop switch */
.levels { padding: 1.25rem; }
.track { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); padding: 4px; border: 1px solid var(--line); border-radius: 14px; }
.track::before { content: ''; position: absolute; inset: 4px auto 4px 4px; width: calc((100% - 8px) / 3); border-radius: 10px; background: var(--blue); box-shadow: 0 0 28px var(--glow); transform: translateX(calc(var(--i) * 100%)); transition: transform .45s cubic-bezier(.3, .8, .2, 1); }
.track button { position: relative; min-height: 48px; padding: .5rem .75rem; border: 0; border-radius: 10px; background: none; color: var(--quiet); font: 400 1rem/1.25 var(--font); cursor: pointer; transition: color .3s; }
.track [aria-pressed="true"] { color: var(--on-blue); }
.level { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; padding: 1.75rem .5rem .25rem; animation: rise .45s ease; }
.level b { display: block; color: var(--blue); margin-bottom: .25rem; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } }

/* Workers: tiles lit where the pointer is (and tilted toward it by main.js) */
.tiles { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; perspective: 900px; }
.tiles li { padding: 2rem 2rem 2.25rem; border: 1px solid var(--line); border-radius: 16px; background: radial-gradient(420px circle at var(--mx, -50%) var(--my, -50%), var(--sheen), transparent 45%), var(--bg2); will-change: transform; }
.tiles h3, .word { background: linear-gradient(180deg, var(--ink) 25%, var(--blue)); -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 0 18px var(--glow)); }
.tiles h3 { font-size: clamp(2.5rem, 1.8rem + 2vw, 3.5rem); font-weight: 300; line-height: 1.1; }
.means { color: var(--blue); font-size: 1rem; margin: .25rem 0 1.25rem; }
.tiles p:last-child, .tiles p:not(.means) { color: var(--quiet); margin-bottom: 0; }

/* How we work: a line that fills as you scroll */
.timeline { --dir: 90deg; position: relative; list-style: none; margin: 3.5rem 0 2rem; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2.5rem; }
.timeline::before, .timeline::after { content: ''; position: absolute; top: .45rem; left: 0; right: 0; height: 1px; background: var(--line); }
.timeline::after { background: linear-gradient(var(--dir), var(--blue), var(--mint)); box-shadow: 0 0 14px var(--glow); transform-origin: 0 0; transform: scaleX(var(--p, 1)); }
.timeline li { position: relative; padding-top: 2rem; }
.timeline li::before { content: ''; position: absolute; top: 0; left: 0; width: .9rem; height: .9rem; border-radius: 50%; background: var(--bg); border: 1px solid var(--blue); box-shadow: 0 0 14px var(--glow); }
.timeline span { color: var(--blue); font-size: 1rem; }
.timeline h3 { margin: .25rem 0 .5rem; }
.timeline p { color: var(--quiet); margin: 0; }

/* What's underneath: six layers that spread apart as you scroll (--spread from main.js) */
.layers div { display: grid; grid-template-columns: 9rem 1fr; gap: 1.5rem; padding: .9rem .75rem; margin-inline: -.75rem; border-top: 1px solid var(--line); border-radius: 8px; transition: background .25s; }
.layers div.on { background: var(--sheen); }
.layers dt { font-weight: 400; }
dd { margin: 0; color: var(--quiet); }
.stack { position: sticky; top: 6rem; height: 34rem; perspective: 1400px; }
.stack i { --k: 0; position: absolute; left: 50%; top: 50%; width: 17rem; height: 17rem; margin: -8.5rem; display: flex; align-items: flex-end; padding: 1rem 1.25rem; font: 400 1rem var(--font); font-style: normal; color: var(--quiet); border: 1px solid color-mix(in srgb, var(--blue) 45%, transparent); border-radius: 20px; background: linear-gradient(135deg, var(--sheen), transparent); transform: rotateX(58deg) rotateZ(calc(-42deg + var(--spread, 1) * 12deg)) translateZ(calc(var(--k) * (12px + var(--spread, 1) * 32px) - var(--spread, 1) * 110px)); transition: background .3s, color .3s, box-shadow .3s; }
.stack i:nth-child(1) { --k: 5; } .stack i:nth-child(2) { --k: 4; } .stack i:nth-child(3) { --k: 3; } .stack i:nth-child(4) { --k: 2; } .stack i:nth-child(5) { --k: 1; }
.stack i.on { color: var(--ink); background: linear-gradient(135deg, color-mix(in srgb, var(--blue) 40%, transparent), var(--sheen)); box-shadow: 0 0 50px -6px var(--glow); }

.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { display: flex; justify-content: space-between; gap: 1rem; padding: 1.1rem 0; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--blue); transition: transform .3s; }
.faq [open] summary::after { transform: rotate(45deg); }
.faq p { color: var(--quiet); }

.word { margin: 0; font: 300 clamp(3.5rem, 1.5rem + 6.5vw, 7.5rem)/1.05 var(--font); letter-spacing: -.02em; }
.word small { display: block; margin-top: 1rem; font: 300 1.125rem var(--font); letter-spacing: 0; color: var(--blue); -webkit-text-fill-color: var(--blue); }

/* Contact */
.contact { display: grid; grid-template-columns: 1fr 1.2fr; gap: 3rem; padding: clamp(1.5rem, 4vw, 3rem); }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form label { display: grid; gap: .35rem; font-size: 1rem; }
.form .full { grid-column: 1 / -1; margin: 0; }
input, select, textarea { width: 100%; min-height: 44px; padding: .6rem .75rem; border: 1px solid var(--line); border-radius: 10px; background: color-mix(in srgb, var(--bg) 60%, transparent); color: var(--ink); font: 300 1rem var(--font); transition: border-color .2s, box-shadow .2s; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px var(--glow); }
.hp { position: absolute; left: -999rem; }
.foot { padding-block: 6rem 3rem; color: var(--quiet); font-size: 1rem; }
.foot nav { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; margin-bottom: 1rem; }
.foot nav a { display: inline-block; padding-block: .6rem; color: var(--quiet); }

@media (max-width: 960px) {
  .split, .contact { grid-template-columns: 1fr; gap: 2.5rem; }
  .tiles { grid-template-columns: 1fr 1fr; }
  .stack { position: relative; top: 0; height: 24rem; }
  .stack i { width: 12rem; height: 12rem; margin: -6rem; }
}
@media (max-width: 720px) {
  body { font-size: 1.0625rem; }
  .wrap { padding-top: 6rem; }
  .bar { gap: .5rem; }
  .bar nav { display: none; }
  .hero { justify-content: flex-end; padding-top: 34svh; }
  .lbl { font-size: .75rem; }
  .lbl.waste { translate: -100% -170%; }
  .context { margin-bottom: 1.5rem; }
  .letter { padding: .25rem 1.1rem 1.25rem; }
  .finds summary { grid-template-columns: 3rem 1fr 1rem; grid-template-areas: "t w c" ". a ."; }
  .finds time { grid-area: t; } .what { grid-area: w; } .amt { grid-area: a; } .finds summary::after { grid-area: c; }
  .why { padding: 0 0 1.25rem; }
  .bars p { grid-template-columns: 6.5rem 1fr 3.25rem; gap: .75rem; }
  .level { grid-template-columns: 1fr; gap: .5rem; }
  .tiles { grid-template-columns: 1fr; }
  .timeline { --dir: 180deg; grid-template-columns: 1fr; gap: 2rem; padding-left: 2rem; }
  .timeline::before, .timeline::after { top: 0; bottom: 0; left: .45rem; right: auto; width: 1px; height: auto; }
  .timeline li { padding-top: 0; }
  .timeline::after { transform: scaleY(var(--p, 1)); }
  .timeline li::before { left: -2rem; top: .4rem; }
  .layers div { grid-template-columns: 1fr; gap: .25rem; }
  .form { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .tick { stroke-dashoffset: 0; }
}