*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#faf8f4;--bg2:#f0ede6;--bg3:#e8e4db;
  --fg:#1a1a18;--fg2:#4a4a45;--fg3:#7a7a72;
  --accent:#c23616;--accent2:#2d6a4f;--accent3:#1d3557;
  --gold:#d4a017;--serif:'DM Serif Display',Georgia,serif;
  --sans:'IBM Plex Sans','Helvetica Neue',sans-serif;
  --mono:'IBM Plex Mono',monospace;
  --max:1120px;--gap:clamp(1rem,4vw,3rem);
}
@media(prefers-color-scheme:dark){
  :root{
    --bg:#111110;--bg2:#1a1a18;--bg3:#252522;
    --fg:#e8e4db;--fg2:#b0ada4;--fg3:#7a7a72;
    --accent:#e84c30;--accent2:#52b788;--accent3:#6ea8d8;
  }
}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--sans);background:var(--bg);color:var(--fg);line-height:1.7;overflow-x:hidden}
::selection{background:var(--accent);color:#fff}
a{color:var(--accent3);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .2s}
a:hover{border-bottom-color:var(--accent3)}

.container{max-width:var(--max);margin:0 auto;padding:0 var(--gap)}

/* ── HERO ── */
.hero{min-height:100svh;display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden;padding:2rem var(--gap)}
.hero::before{content:'';position:absolute;inset:0;background:
  radial-gradient(ellipse 60% 50% at 20% 40%,rgba(194,54,22,.08),transparent),
  radial-gradient(ellipse 40% 60% at 80% 60%,rgba(45,106,79,.06),transparent);
  pointer-events:none}
.hero-kicker{font-family:var(--mono);font-size:.75rem;letter-spacing:.15em;text-transform:uppercase;color:var(--accent);margin-bottom:1rem;opacity:0;transform:translateY(20px);animation:fadeUp .8s .3s forwards}
.hero h1{font-family:var(--serif);font-size:clamp(2.8rem,7vw,5.5rem);line-height:1.05;max-width:14ch;margin-bottom:1.5rem;opacity:0;transform:translateY(30px);animation:fadeUp .8s .5s forwards}
.hero h1 em{font-style:italic;color:var(--accent)}
.hero-sub{font-size:clamp(1rem,2vw,1.25rem);color:var(--fg2);max-width:52ch;line-height:1.6;font-weight:300;opacity:0;transform:translateY(20px);animation:fadeUp .8s .7s forwards}
.hero-stats{display:flex;gap:2rem;margin-top:3rem;flex-wrap:wrap;opacity:0;animation:fadeUp .8s .9s forwards}
.hero-stat{text-align:left}
.hero-stat strong{display:block;font-family:var(--serif);font-size:clamp(2rem,4vw,3rem);color:var(--accent)}
.hero-stat span{font-size:.8rem;color:var(--fg3);text-transform:uppercase;letter-spacing:.08em}
.scroll-hint{position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:.5rem;opacity:0;animation:fadeUp .8s 1.2s forwards}
.scroll-hint span{font-size:.7rem;color:var(--fg3);letter-spacing:.1em;text-transform:uppercase}
.scroll-hint .arrow{width:20px;height:20px;border-right:2px solid var(--fg3);border-bottom:2px solid var(--fg3);transform:rotate(45deg);animation:bounce 2s infinite}

/* ── SECTIONS ── */
section{padding:clamp(3rem,8vw,6rem) 0}
.section-label{font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-bottom:.75rem}
.section-title{font-family:var(--serif);font-size:clamp(1.8rem,4vw,2.8rem);line-height:1.15;margin-bottom:1rem;max-width:20ch}
.section-intro{font-size:1.05rem;color:var(--fg2);max-width:60ch;line-height:1.7;font-weight:300;margin-bottom:2.5rem}

/* ── PREVALENCE CHART ── */
.prev-grid{display:grid;grid-template-columns:1fr;gap:2rem}
@media(min-width:768px){.prev-grid{grid-template-columns:1fr 1fr}}
.chart-wrap{background:var(--bg2);border-radius:12px;padding:1.5rem;position:relative}
.chart-wrap h3{font-family:var(--sans);font-size:.85rem;font-weight:600;margin-bottom:1rem;color:var(--fg2)}
.bar-chart{display:flex;flex-direction:column;gap:6px}
.bar-row{display:flex;align-items:center;gap:10px}
.bar-label{width:120px;font-size:.75rem;color:var(--fg2);text-align:right;flex-shrink:0}
.bar-track{flex:1;height:22px;background:var(--bg3);border-radius:4px;overflow:hidden;position:relative}
.bar-fill{height:100%;border-radius:4px;transition:width 1.2s cubic-bezier(.25,.46,.45,.94);width:0}
.bar-fill.m{background:var(--accent3)}
.bar-fill.f{background:var(--accent2)}
.bar-val{position:absolute;right:8px;top:50%;transform:translateY(-50%);font-size:.65rem;font-weight:600;color:#fff;mix-blend-mode:difference}

/* ── CVD TYPES ── */
.types-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem}
.type-card{background:var(--bg2);border-radius:12px;padding:1.5rem;border-left:4px solid var(--fg3);transition:transform .3s,box-shadow .3s}
.type-card:hover{transform:translateY(-4px);box-shadow:0 8px 30px rgba(0,0,0,.08)}
.type-card[data-type="protan"]{border-left-color:var(--accent)}
.type-card[data-type="deutan"]{border-left-color:var(--accent2)}
.type-card[data-type="tritan"]{border-left-color:var(--accent3)}
.type-card[data-type="mono"]{border-left-color:var(--fg3)}
.type-card h4{font-family:var(--serif);font-size:1.2rem;margin-bottom:.25rem}
.type-card .type-sub{font-size:.75rem;color:var(--fg3);font-family:var(--mono);margin-bottom:.75rem}
.type-card p{font-size:.85rem;color:var(--fg2);line-height:1.6}
.type-card .type-prev{font-size:1.5rem;font-weight:600;margin-top:.75rem;font-family:var(--serif)}

/* ── SIMULATOR ── */
.sim-section{background:var(--bg2);border-radius:16px;padding:clamp(1.5rem,4vw,3rem);margin-top:2rem}
.sim-controls{display:flex;gap:.75rem;flex-wrap:wrap;margin-bottom:1.5rem}
.sim-btn{font-family:var(--sans);font-size:.8rem;font-weight:500;padding:.5rem 1rem;border:1.5px solid var(--bg3);border-radius:8px;background:transparent;color:var(--fg2);cursor:pointer;transition:all .2s}
.sim-btn.active,.sim-btn:hover{border-color:var(--accent);color:var(--accent);background:rgba(194,54,22,.06)}
.sim-canvas-wrap{position:relative;border-radius:12px;overflow:hidden}
.sim-canvas-wrap canvas{display:block;width:100%;border-radius:12px}
.sim-label{position:absolute;bottom:12px;left:12px;background:rgba(0,0,0,.65);color:#fff;font-size:.7rem;padding:.3rem .6rem;border-radius:6px;font-family:var(--mono);backdrop-filter:blur(8px)}

/* ── IMPACT ── */
.impact-meter{margin-bottom:1.25rem}
.impact-header{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:.35rem}
.impact-name{font-size:.85rem;font-weight:500}
.impact-level{font-size:.7rem;font-family:var(--mono);color:var(--fg3)}
.impact-track{height:8px;background:var(--bg3);border-radius:4px;overflow:hidden}
.impact-bar{height:100%;border-radius:4px;transition:width 1.2s cubic-bezier(.25,.46,.45,.94);width:0}

/* ── AWARENESS ── */
.aware-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.aware-card{background:var(--bg2);border-radius:12px;padding:1.5rem;text-align:center;transition:transform .3s}
.aware-card:hover{transform:scale(1.03)}
.aware-num{font-family:var(--serif);font-size:clamp(2rem,5vw,3rem);color:var(--accent);line-height:1}
.aware-desc{font-size:.8rem;color:var(--fg2);margin-top:.5rem;line-height:1.5}

/* ── OCCUPATION ── */
.occ-table{width:100%;border-collapse:collapse;font-size:.85rem}
.occ-table th{text-align:left;font-weight:600;font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;color:var(--fg3);padding:.75rem .5rem;border-bottom:2px solid var(--bg3)}
.occ-table td{padding:.75rem .5rem;border-bottom:1px solid var(--bg3);vertical-align:middle}
.occ-table tr:hover td{background:var(--bg2)}
.occ-badge{display:inline-block;font-size:.65rem;font-weight:600;padding:.2rem .5rem;border-radius:4px;text-transform:uppercase;letter-spacing:.05em}
.occ-badge.strict{background:rgba(194,54,22,.12);color:var(--accent)}
.occ-badge.moderate{background:rgba(212,160,23,.12);color:var(--gold)}
.occ-badge.variable{background:rgba(45,106,79,.12);color:var(--accent2)}

/* ── TIMELINE ── */
.timeline{position:relative;padding-left:2rem;margin-top:2rem}
.timeline::before{content:'';position:absolute;left:7px;top:0;bottom:0;width:2px;background:var(--bg3)}
.tl-item{position:relative;margin-bottom:2rem;padding-left:1.5rem}
.tl-item::before{content:'';position:absolute;left:-2rem;top:.5rem;width:16px;height:16px;border-radius:50%;background:var(--accent);border:3px solid var(--bg);z-index:1}
.tl-item h4{font-family:var(--serif);font-size:1.1rem;margin-bottom:.25rem}
.tl-item p{font-size:.85rem;color:var(--fg2);line-height:1.6}

/* ── QUOTE ── */
.pull-quote{border-left:4px solid var(--accent);padding:1.5rem 2rem;margin:2rem 0;background:var(--bg2);border-radius:0 12px 12px 0}
.pull-quote p{font-family:var(--serif);font-size:1.15rem;font-style:italic;line-height:1.6;color:var(--fg)}
.pull-quote cite{display:block;margin-top:.75rem;font-family:var(--mono);font-size:.7rem;font-style:normal;color:var(--fg3)}

/* ── RECS ── */
.rec-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem}
.rec-card{background:var(--bg2);border-radius:12px;padding:1.5rem;border-top:3px solid var(--accent2)}
.rec-card h4{font-size:.95rem;font-weight:600;margin-bottom:.75rem}
.rec-card ul{list-style:none;padding:0}
.rec-card li{font-size:.8rem;color:var(--fg2);padding:.4rem 0;padding-left:1.2rem;position:relative;line-height:1.5}
.rec-card li::before{content:'';position:absolute;left:0;top:.65rem;width:6px;height:6px;border-radius:50%;background:var(--accent2)}

/* ── FOOTER ── */
footer{border-top:1px solid var(--bg3);padding:3rem 0;margin-top:2rem}
footer p{font-size:.75rem;color:var(--fg3);line-height:1.6}
footer a{color:var(--accent3)}

/* ── ANIMATIONS ── */
@keyframes fadeUp{to{opacity:1;transform:translateY(0)}}
@keyframes bounce{0%,20%,50%,80%,100%{transform:rotate(45deg) translateY(0)}40%{transform:rotate(45deg) translateY(-6px)}60%{transform:rotate(45deg) translateY(-3px)}}
.reveal{opacity:0;transform:translateY(40px);transition:opacity .8s,transform .8s cubic-bezier(.25,.46,.45,.94)}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-d1{transition-delay:.1s}.reveal-d2{transition-delay:.2s}.reveal-d3{transition-delay:.3s}.reveal-d4{transition-delay:.4s}

/* ── NAV ── */
.top-nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:.75rem var(--gap);display:flex;justify-content:space-between;align-items:center;backdrop-filter:blur(12px);background:rgba(250,248,244,.8);border-bottom:1px solid transparent;transition:border-color .3s,background .3s}
@media(prefers-color-scheme:dark){.top-nav{background:rgba(17,17,16,.8)}}
.top-nav.scrolled{border-bottom-color:var(--bg3)}
.nav-logo{font-family:var(--serif);font-size:1rem;color:var(--fg)}
.nav-links{display:flex;gap:1.5rem}
.nav-links a{font-size:.75rem;color:var(--fg3);text-transform:uppercase;letter-spacing:.08em;border:none;transition:color .2s}
.nav-links a:hover{color:var(--accent);border:none}
@media(max-width:640px){.nav-links{display:none}}

/* ── RESPONSIVE ── */
@media(max-width:640px){
  .bar-label{width:80px;font-size:.65rem}
  .hero-stats{gap:1.25rem}
  .type-card .type-prev{font-size:1.2rem}
}

    :root{--fg3:#404039;--accent:#7a1e0a;--accent2:#194b34;--gold:#573900;--nav-bg:var(--bg);--sim-label-bg:#111110;--sim-label-ink:#fff}
    :root[data-theme="dark"]{color-scheme:dark;--bg:#111110;--bg2:#1a1a18;--bg3:#30302c;--fg:#f6f1e7;--fg2:#d4cfc3;--fg3:#c6c0b5;--accent:#ffb09a;--accent2:#b1dfc1;--accent3:#bbdafa;--gold:#f2d18b}
    :root[data-theme="light"]{color-scheme:light;--bg:#faf8f4;--bg2:#f0ede6;--bg3:#e8e4db;--fg:#1a1a18;--fg2:#4a4a45;--fg3:#404039;--accent:#7a1e0a;--accent2:#194b34;--accent3:#1d3557;--gold:#573900}
    .top-nav{background:var(--nav-bg);gap:12px;backdrop-filter:none}
    .nav-links{margin-left:auto}
    #spectrumTheme{flex-shrink:0;min-width:44px;min-height:44px;font:inherit;background:var(--bg2);color:var(--fg);border:1px solid var(--fg3);border-radius:6px}
    button:focus-visible,a:focus-visible{outline:3px solid var(--accent3);outline-offset:3px}
    .sim-label{background:var(--sim-label-bg);color:var(--sim-label-ink)}
    .hero{padding-top:100px}.hero-stat{max-width:23ch}
    .occ-table td:last-child{min-width:180px}.occ-table{line-height:1.6}
    @media(max-width:640px){.occ-table{font-size:.8rem}.occ-table td:first-child{width:30%}.occ-table th,.occ-table td{padding:.65rem .3rem}.nav-logo{font-size:.9rem}}
    @media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.hero-kicker,.hero h1,.hero-sub,.hero-stats,.scroll-hint,.reveal{opacity:1;transform:none}}

@media(prefers-color-scheme:dark){:root:not([data-theme]){--fg3:#c6c0b5;--accent:#ffb09a;--accent2:#b1dfc1;--gold:#f2d18b}}

@media(max-width:640px){
 .occ-table{display:block;width:100%}
 .occ-table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}
 .occ-table tbody{display:block}
 .occ-table tbody tr{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:0 12px;padding:14px 0;border-bottom:1px solid var(--bg3)}
 .occ-table td{display:block;min-width:0;border:0;padding:.2rem 0}
 .occ-table td:first-child{width:auto}
 .occ-table td:last-child{grid-column:1/-1;min-width:0;width:auto;padding-top:.6rem;overflow-wrap:anywhere}
}