/* ═══ RESET ═══ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

/* ═══ ISLA DARK PALETTE ═══ */
:root{
  --bg:#08080f;--fg:#f0ece6;--dim:rgba(255,255,255,0.35);--dimmer:rgba(255,255,255,0.15);
  --glass:rgba(255,255,255,0.03);--border:rgba(255,255,255,0.06);
  --blue:#74c0fc;--gold:#ffd43b;--green:#69db7c;--red:#ff6b6b;--purple:#b197fc;
  --pink:#f783ac;--amber:#d97706;--teal:#63e6be;--orange:#ffa94d;
  --serif:'Instrument Serif',serif;--mono:'DM Mono',monospace;
  --reveal-ease:cubic-bezier(0.16,1,0.3,1);--spring:cubic-bezier(0.34,1.56,0.64,1);
}

/* ═══ BASE ═══ */
html{scroll-behavior:smooth;background:var(--bg);color:var(--fg)}
body{font-family:var(--mono);font-weight:300;font-size:clamp(13px,1.5vw,15px);line-height:1.8;overflow-x:hidden;-webkit-font-smoothing:antialiased;min-height:100vh}
em{font-family:var(--serif);font-style:italic;letter-spacing:0.02em}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}

/* ═══ GRAIN OVERLAY ═══ */
body::after{content:'';position:fixed;inset:0;z-index:9999;pointer-events:none;opacity:0.03;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

/* ═══ SCROLL PROGRESS ═══ */
.scroll-progress{position:fixed;top:0;left:0;height:3px;z-index:1001;background:linear-gradient(90deg,var(--blue),var(--gold));width:0%;transition:width 80ms linear}
.scroll-progress::after{content:'';position:absolute;right:0;top:0;width:20px;height:3px;background:var(--gold);animation:breathe 3s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:0.4}50%{opacity:1}}

/* ═══ NAV PANEL ═══ */
.nav-panel{position:fixed;top:12px;right:12px;z-index:998;display:flex;flex-direction:column;gap:4px;background:rgba(8,8,15,0.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border);border-radius:12px;padding:10px;font-size:11px;max-height:calc(100vh - 24px);overflow-y:auto;transition:transform 0.3s var(--reveal-ease),opacity 0.3s ease}
.nav-panel a{color:var(--dim);text-decoration:none;padding:4px 8px;border-radius:6px;transition:all 0.2s ease;display:flex;align-items:center;gap:6px;white-space:nowrap}
.nav-panel a:hover,.nav-panel a.active{color:var(--fg);background:var(--glass)}
.nav-panel .ch-num{color:var(--dimmer);font-size:9px;min-width:16px}
.nav-panel .time-est{color:var(--dimmer);font-size:9px;margin-left:auto}
.nav-panel .check{display:none;color:var(--green);font-size:10px;margin-left:4px}
.nav-panel a.completed .check{display:inline}
.nav-counter{text-align:center;padding:6px 0 2px;font-size:10px;color:var(--dimmer);border-top:1px solid var(--border);margin-top:4px}
.nav-toggle{position:fixed;top:12px;right:12px;z-index:999;width:40px;height:40px;border:1px solid var(--border);border-radius:8px;background:rgba(8,8,15,0.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:var(--fg);font-size:18px;cursor:pointer;display:none;align-items:center;justify-content:center;transition:transform 0.2s ease;-webkit-tap-highlight-color:transparent}
.nav-toggle:hover{transform:scale(1.05)}

/* ═══ HERO ═══ */
#hero{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:60px 24px;position:relative}
#hero h1{font-family:var(--serif);font-size:clamp(36px,8vw,72px);font-weight:400;letter-spacing:-0.02em;line-height:1.1;margin-bottom:16px}
#hero .subtitle{font-size:clamp(12px,2vw,15px);color:var(--dim);letter-spacing:0.1em;text-transform:uppercase;margin-bottom:48px}
#hero .scroll-hint{position:absolute;bottom:40px;color:var(--dimmer);font-size:11px;animation:float 3s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}

/* ═══ SECTIONS ═══ */
section{padding:100px 24px 80px;position:relative}
section:not(#hero){min-height:80vh}
.content{max-width:640px;margin:0 auto}
.content h2{font-family:var(--serif);font-size:clamp(24px,5vw,38px);font-weight:400;margin-bottom:40px;letter-spacing:-0.01em;line-height:1.2}
.content h2 .ch-label{display:block;font-family:var(--mono);font-size:clamp(10px,1.2vw,12px);color:var(--accent,var(--dim));letter-spacing:0.15em;text-transform:uppercase;margin-bottom:8px;font-weight:300}
.content p{margin-bottom:1.6em;max-width:640px}
.content p:last-child{margin-bottom:0}

/* ═══ CHAPTER ACCENTS ═══ */
[data-chapter="1"]{--accent:var(--dim)}
[data-chapter="2"]{--accent:var(--blue)}
[data-chapter="3"]{--accent:var(--gold)}
[data-chapter="4"]{--accent:var(--dim)}
[data-chapter="5"]{--accent:var(--green)}
[data-chapter="6"]{--accent:var(--purple)}
[data-chapter="7"]{--accent:var(--red)}
[data-chapter="8"]{--accent:var(--blue)}
[data-chapter="9"]{--accent:var(--blue)}
[data-chapter="10"]{--accent:var(--blue)}
[data-chapter="11"]{--accent:var(--purple)}
[data-chapter="12"]{--accent:var(--gold)}

/* ═══ DIVIDERS ═══ (upgraded in Tier 1 below) */

/* ═══ SCROLL REVEAL ═══ */
.reveal{opacity:0;transform:translateY(20px);transition:opacity 0.7s var(--reveal-ease),transform 0.7s var(--reveal-ease)}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-delay-1{transition-delay:0.1s}
.reveal-delay-2{transition-delay:0.2s}
.reveal-delay-3{transition-delay:0.3s}

/* ═══ CH I: WORD FADE-IN ═══ */
.word-fade span{opacity:0;transition:opacity 0.4s ease;display:inline}
.word-fade span.shown{opacity:1}

/* ═══ CH II: SCROLL SLIT ═══ */
.slit-container{position:relative}
.slit-container.slit-active .slit-content{-webkit-mask-image:linear-gradient(to bottom,transparent 0%,transparent 30%,black 40%,black 60%,transparent 70%,transparent 100%);mask-image:linear-gradient(to bottom,transparent 0%,transparent 30%,black 40%,black 60%,transparent 70%,transparent 100%)}
.slit-toggle{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:1px solid var(--accent,var(--blue));border-radius:20px;background:transparent;color:var(--accent,var(--blue));font-family:var(--mono);font-size:12px;cursor:pointer;margin:24px 0;transition:all 0.3s ease}
.slit-toggle:hover{background:rgba(116,192,252,0.08)}
.slit-toggle.open{border-color:var(--green);color:var(--green)}

/* ═══ CH III: TOKEN PREDICTION GAME ═══ */
.token-game{background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:12px;padding:24px;margin:32px 0}
.token-game h3{font-family:var(--serif);font-size:18px;margin-bottom:16px;color:var(--gold)}
.token-prompt{font-size:14px;margin-bottom:20px;line-height:1.6}
.token-prompt .blank{display:inline-block;min-width:80px;border-bottom:2px solid var(--gold);margin:0 4px}
.token-options{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.token-option{display:flex;align-items:center;gap:12px;padding:10px 14px;border:1px solid var(--border);border-radius:8px;cursor:pointer;transition:all 0.2s ease;position:relative;overflow:hidden}
.token-option:hover{border-color:var(--dim)}
.token-option .prob-bar{position:absolute;left:0;top:0;bottom:0;background:rgba(255,212,59,0.06);transition:width 0.5s var(--reveal-ease);width:0}
.token-option .word{position:relative;z-index:1;font-weight:400;min-width:80px}
.token-option .prob{position:relative;z-index:1;color:var(--dimmer);font-size:11px;margin-left:auto;opacity:0;transition:opacity 0.3s ease}
.token-option.revealed .prob{opacity:1}
.token-option.correct{border-color:var(--green);background:rgba(105,219,124,0.05)}
.token-option.incorrect{border-color:var(--red);opacity:0.5}
.token-option.selected{border-color:var(--gold)}
.token-round-info{font-size:11px;color:var(--dimmer);margin-bottom:8px}
.token-score{font-size:12px;color:var(--dim);text-align:center;padding-top:12px;border-top:1px solid var(--border)}
.token-loss{font-size:11px;color:var(--dimmer);margin-top:8px;text-align:center;opacity:0;transition:opacity 0.3s ease}
.token-loss.show{opacity:1}
.token-next{display:none;padding:8px 16px;border:1px solid var(--gold);border-radius:20px;background:transparent;color:var(--gold);font-family:var(--mono);font-size:12px;cursor:pointer;margin:12px auto 0;transition:all 0.2s ease}
.token-next:hover{background:rgba(255,212,59,0.08)}
.token-next.show{display:block}

/* ═══ CH IV: WAGE COUNTER ═══ */
.wage-counter{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:rgba(8,8,15,0.9);border:1px solid var(--border);border-radius:8px;padding:8px 16px;font-size:11px;color:var(--dimmer);z-index:100;opacity:0;transition:opacity 0.3s ease;pointer-events:none;display:flex;gap:12px;align-items:center}
.wage-counter.visible{opacity:1}
.wage-counter .amount{color:var(--dim);font-weight:400;font-variant-numeric:tabular-nums}

/* ═══ CH V: GPU CALCULATOR ═══ */
.gpu-calc{background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:12px;padding:24px;margin:32px 0}
.gpu-calc h3{font-family:var(--serif);font-size:18px;margin-bottom:20px;color:var(--green)}
.calc-slider{margin-bottom:20px}
.calc-slider label{display:flex;justify-content:space-between;font-size:12px;color:var(--dim);margin-bottom:6px}
.calc-slider label span{color:var(--fg);font-weight:400}
.calc-slider input[type="range"]{-webkit-appearance:none;width:100%;height:4px;border-radius:2px;background:var(--border);outline:none}
.calc-slider input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--green);cursor:pointer;border:2px solid var(--bg)}
.calc-outputs{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px;padding-top:16px;border-top:1px solid var(--border)}
.calc-output{text-align:center}
.calc-output .value{font-size:20px;font-weight:400;color:var(--green);font-variant-numeric:tabular-nums}
.calc-output .label{font-size:10px;color:var(--dimmer);margin-top:2px;text-transform:uppercase;letter-spacing:0.05em}
.calc-equiv{grid-column:1/-1;text-align:center;font-size:12px;color:var(--dim);padding-top:8px;border-top:1px solid var(--border)}

/* ═══ CH VI: LAYER EXPLORER + CHOIR ═══ */
.layer-explorer{background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:12px;padding:24px;margin:32px 0}
.layer-explorer h3{font-family:var(--serif);font-size:18px;margin-bottom:16px;color:var(--purple)}
.layer-zones{display:flex;gap:8px;margin-bottom:16px}
.layer-zone{flex:1;padding:12px;border:1px solid var(--border);border-radius:8px;cursor:pointer;text-align:center;transition:all 0.3s ease;font-size:11px}
.layer-zone:hover{border-color:var(--dim)}
.layer-zone.active{border-color:var(--purple);background:rgba(177,151,252,0.05)}
.layer-zone .zone-label{color:var(--purple);font-weight:400;margin-bottom:4px;font-size:12px}
.layer-zone .zone-desc{color:var(--dimmer);font-size:10px}
.layer-detail{min-height:60px;padding:12px;font-size:12px;color:var(--dim);line-height:1.6;margin-bottom:20px}
.choir-section{border-top:1px solid var(--border);padding-top:20px}
.choir-section h4{font-family:var(--serif);font-size:15px;margin-bottom:12px;color:var(--purple)}
.choir-canvas{width:100%;height:200px;border-radius:8px;background:rgba(0,0,0,0.3);margin-bottom:12px}
.choir-buttons{display:flex;gap:8px;justify-content:center}
.choir-btn{padding:6px 14px;border:1px solid var(--border);border-radius:16px;background:transparent;color:var(--dim);font-family:var(--mono);font-size:11px;cursor:pointer;transition:all 0.2s ease}
.choir-btn:hover{border-color:var(--purple)}
.choir-btn.active{border-color:var(--purple);color:var(--purple);background:rgba(177,151,252,0.08)}

/* ═══ CH VII: CONFIDENCE METER ═══ */
.confidence-meter{background:rgba(255,255,255,0.02);border:1px solid var(--border);border-radius:12px;padding:24px;margin:32px 0}
.confidence-meter h3{font-family:var(--serif);font-size:18px;margin-bottom:16px;color:var(--red)}
.conf-statement{margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid var(--border)}
.conf-statement:last-of-type{border-bottom:none;margin-bottom:0;padding-bottom:0}
.conf-text{font-size:13px;line-height:1.6;margin-bottom:12px;font-style:italic;color:var(--fg)}
.conf-slider-row{display:flex;align-items:center;gap:12px}
.conf-slider-row input[type="range"]{flex:1;-webkit-appearance:none;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--green),var(--gold),var(--red));outline:none}
.conf-slider-row input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--fg);cursor:pointer;border:2px solid var(--bg)}
.conf-value{font-size:14px;font-weight:400;min-width:36px;text-align:right;font-variant-numeric:tabular-nums}
.conf-submit{padding:6px 14px;border:1px solid var(--red);border-radius:16px;background:transparent;color:var(--red);font-family:var(--mono);font-size:11px;cursor:pointer;transition:all 0.2s ease;margin-top:8px}
.conf-submit:hover{background:rgba(255,107,107,0.08)}
.conf-reveal{margin-top:12px;padding:12px;border-radius:8px;font-size:12px;line-height:1.6;opacity:0;transform:translateY(8px);transition:all 0.4s var(--reveal-ease)}
.conf-reveal.show{opacity:1;transform:translateY(0)}
.conf-reveal.truth{background:rgba(105,219,124,0.06);border:1px solid rgba(105,219,124,0.15);color:var(--green)}
.conf-reveal.hallucination{background:rgba(255,107,107,0.06);border:1px solid rgba(255,107,107,0.15);color:var(--red)}
.conf-reveal.sycophancy{background:rgba(255,212,59,0.06);border:1px solid rgba(255,212,59,0.15);color:var(--gold)}

/* ═══ CH VIII: DOSSIER FADE ═══ */
.dossier-block{font-style:italic;color:var(--dim);transition:opacity 0.5s ease}
.dossier-block.fading{opacity:0.15}

/* ═══ CH IX: GOLD PULSE ═══ */
.gold-pulse{position:relative;display:inline}
.gold-pulse::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:2px;background:var(--gold);animation:pulse-glow 3s ease-in-out infinite}
@keyframes pulse-glow{0%,100%{opacity:0.3;box-shadow:0 0 4px rgba(255,212,59,0.2)}50%{opacity:1;box-shadow:0 0 12px rgba(255,212,59,0.4)}}

/* ═══ CH X: NESTED MIRROR ═══ */
.mirror-container{position:relative;padding:40px 20px;margin:32px 0;border:1px solid var(--border);border-radius:12px;overflow:hidden}
.mirror-container::before,.mirror-container::after{content:'';position:absolute;border:1px solid rgba(116,192,252,0.08);border-radius:8px;pointer-events:none}
.mirror-container::before{inset:8px}
.mirror-container::after{inset:16px}
.mirror-inner{position:relative;text-align:center;font-family:var(--serif);font-size:14px;color:var(--dim);font-style:italic}
.mirror-inner::before{content:'';position:absolute;inset:-8px;border:1px solid rgba(116,192,252,0.04);border-radius:6px}

/* ═══ CH XI: COMPARISON CARDS ═══ */
.theory-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:32px 0}
.theory-card{background:var(--glass);border:1px solid var(--border);border-radius:12px;padding:20px;transition:all 0.3s ease}
.theory-card:hover{border-color:var(--dim)}
.theory-card h4{font-family:var(--serif);font-size:15px;margin-bottom:8px;color:var(--purple)}
.theory-card .theorist{font-size:10px;color:var(--dimmer);margin-bottom:12px;text-transform:uppercase;letter-spacing:0.05em}
.theory-card p{font-size:12px;color:var(--dim);line-height:1.6}
.theory-card .verdict{margin-top:12px;padding-top:8px;border-top:1px solid var(--border);font-size:11px}
.chalmers-note{text-align:center;margin-top:16px;padding:16px;border:1px dashed var(--border);border-radius:8px;font-size:12px;color:var(--dimmer);cursor:pointer;transition:all 0.3s ease}
.chalmers-note:hover{border-color:var(--dim);color:var(--dim)}
.chalmers-note.expanded{border-style:solid}

/* ═══ CH XII: TYPING ANIMATION ═══ */
.typing-container{min-height:200px}
.typing-container .typed{display:inline}
.typing-container .cursor{display:inline-block;width:2px;height:1em;background:var(--fg);animation:blink-cursor 1s step-end infinite;vertical-align:text-bottom;margin-left:2px}
@keyframes blink-cursor{0%,100%{opacity:1}50%{opacity:0}}
.typing-container .gold-para{color:var(--gold);text-shadow:0 0 20px rgba(255,212,59,0.15)}
.typing-skip{display:none;padding:6px 14px;border:1px solid var(--dimmer);border-radius:16px;background:transparent;color:var(--dimmer);font-family:var(--mono);font-size:11px;cursor:pointer;margin-top:16px;transition:all 0.2s ease}
.typing-skip:hover{border-color:var(--dim);color:var(--dim)}
.typing-skip.show{display:inline-block}

/* ═══ CELEBRATIONS ═══ */
.celebration{position:fixed;pointer-events:none;z-index:9998}
.confetti{position:absolute;width:6px;height:6px;border-radius:50%;animation:confetti-fall 0.8s var(--reveal-ease) forwards}
@keyframes confetti-fall{0%{opacity:1;transform:translate(0,0) scale(1)}100%{opacity:0;transform:translate(var(--dx),var(--dy)) scale(0)}}

/* ═══ WELCOME BACK ═══ */
.welcome-toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(100px);background:rgba(8,8,15,0.92);border:1px solid var(--border);border-radius:12px;padding:12px 20px;font-size:12px;color:var(--dim);z-index:997;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);transition:transform 0.5s var(--spring);white-space:nowrap}
.welcome-toast.show{transform:translateX(-50%) translateY(0)}

/* ═══ COLOPHON ═══ */
#colophon{text-align:center;padding:80px 24px 120px;color:var(--dimmer);font-size:11px;line-height:2}
#colophon .mark{font-family:var(--serif);font-size:24px;color:var(--dim);margin-bottom:16px}

/* ═══ RESPONSIVE ═══ */
@media(max-width:700px){
  .nav-panel{display:none!important;top:0;right:0;left:0;bottom:0;border-radius:0;max-height:100vh;padding:60px 16px 16px;overflow-y:auto;-webkit-overflow-scrolling:touch}
  .nav-panel.mobile-open{display:flex!important}
  .theory-cards{grid-template-columns:1fr}
  section{padding:80px 16px 60px}
  .accent-bar{margin-left:0}
  .indent{padding-left:20px}
  .wage-counter{left:auto;right:16px;transform:none;max-width:calc(100% - 80px);font-size:10px}
}
@media(min-width:701px){
  .nav-toggle{display:none}
  .mobile-toolbar{display:none!important}
}

/* ═══ REDUCED MOTION ═══ */
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  .word-fade span{opacity:1}
  .slit-container.slit-active .slit-content{-webkit-mask-image:none;mask-image:none}
  .scroll-progress{transition:none}
}

/* ═══ NOSCRIPT ═══ */
noscript{display:block;position:fixed;top:0;left:0;right:0;padding:12px;background:var(--gold);color:var(--bg);text-align:center;font-size:13px;z-index:10000}

/* ═══ TIER 0: ACCESSIBILITY ═══ */
::selection{background:var(--accent,var(--blue));color:var(--bg)}
button:focus-visible,input:focus-visible,a:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:4px}
::-moz-range-thumb{appearance:none;width:16px;height:16px;border-radius:50%;background:var(--fg);cursor:pointer;border:2px solid var(--bg)}
.conf-slider-row input[type="range"]::-moz-range-thumb{background:var(--fg)}
.calc-slider input[type="range"]::-moz-range-thumb{background:var(--green)}
.token-option:hover,.theory-card:hover,.choir-btn:hover,.layer-zone:hover{transform:translateY(-2px)}
.slit-toggle:hover,.conf-submit:hover,.token-next:hover,.typing-skip:hover{transform:translateY(-1px)}
.content h2:hover .ch-label{letter-spacing:0.18em}
.ch-label{transition:letter-spacing 0.3s ease}

/* ═══ NAV ACCENT DOTS ═══ */
.nav-panel a[data-ch]::before{content:'';display:inline-block;width:5px;height:5px;border-radius:50%;margin-right:4px;flex-shrink:0;opacity:0.5;transition:opacity 0.2s ease}
.nav-panel a[data-ch]:hover::before,.nav-panel a[data-ch].active::before{opacity:1}
[data-ch="1"]::before{background:var(--dim)}
[data-ch="2"]::before{background:var(--blue)}
[data-ch="3"]::before{background:var(--gold)}
[data-ch="4"]::before{background:var(--dim)}
[data-ch="5"]::before{background:var(--green)}
[data-ch="6"]::before{background:var(--purple)}
[data-ch="7"]::before{background:var(--red)}
[data-ch="8"]::before{background:var(--blue)}
[data-ch="9"]::before{background:var(--blue)}
[data-ch="10"]::before{background:var(--blue)}
[data-ch="11"]::before{background:var(--purple)}
[data-ch="12"]::before{background:var(--gold)}

/* ═══ TIER 1: NAV DOTS (desktop) ═══ */
.nav-dots{position:fixed;left:20px;top:50%;transform:translateY(-50%);z-index:997;display:flex;flex-direction:column;gap:12px}
.nav-dot{width:8px;height:8px;border-radius:50%;border:1px solid var(--dimmer);background:transparent;cursor:pointer;transition:all 0.3s ease;position:relative}
.nav-dot.active{background:var(--accent-dot,var(--blue));border-color:var(--accent-dot,var(--blue));box-shadow:0 0 6px var(--accent-dot,var(--blue))}
.nav-dot::after{content:attr(data-label);position:absolute;left:20px;top:50%;transform:translateY(-50%);font-size:10px;color:var(--dim);white-space:nowrap;opacity:0;transition:opacity 0.2s ease;pointer-events:none;font-family:var(--mono)}
.nav-dot:hover::after{opacity:1}
.nav-dot.completed::before{content:'';position:absolute;inset:-3px;border-radius:50%;border:1px solid var(--green);opacity:0.4}
@media(max-width:700px){.nav-dots{display:none}}
@media(min-width:701px){.nav-dots{display:flex}}

/* ═══ TIER 1: CHAPTER MARKS ═══ */
.ch-mark{margin-right:6px;opacity:0.6;font-size:0.85em}

/* ═══ TIER 1: PULL QUOTES ═══ */
.pull-quote{font-family:var(--serif);font-size:clamp(16px,2.5vw,22px);font-style:italic;color:var(--fg);line-height:1.5;margin:40px 0;padding:20px 0 20px 24px;border-left:3px solid var(--accent,var(--blue));position:relative;max-width:580px}
.pull-quote::after{content:'';position:absolute;bottom:0;left:24px;right:0;height:1px;background:linear-gradient(90deg,var(--accent,var(--blue)),transparent)}
@media(min-width:900px){.pull-quote{float:right;width:55%;margin:0 -40px 32px 32px}}

/* ═══ TIER 1: CHAPTER DIVIDER UPGRADE ═══ */
.chapter-divider{width:60px;height:1px;background:linear-gradient(90deg,transparent,var(--accent,var(--dimmer)),transparent);margin:0 auto;position:relative}
.chapter-divider::after{content:'';position:absolute;left:50%;top:-2px;width:5px;height:5px;border-radius:50%;background:var(--accent,var(--dimmer));transform:translateX(-50%);box-shadow:0 0 8px var(--accent,var(--dimmer))}

/* ═══ TIER 1: COUNTER-ROTATION COLOPHON ═══ */
.colophon-mark{position:relative;width:48px;height:48px;margin:0 auto 16px}
.colophon-mark .ring-outer{position:absolute;inset:0;border:1px solid var(--dim);border-radius:50%;animation:spin-slow 12s linear infinite}
.colophon-mark .ring-inner{position:absolute;inset:8px;border:1px solid var(--dimmer);border-radius:4px;animation:spin-slow 12s linear infinite reverse}
.colophon-mark .ring-core{position:absolute;inset:16px;border:1px solid rgba(255,255,255,0.08);border-radius:50%}
@keyframes spin-slow{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}

/* ═══ TIER 1: READING TIME REMAINING ═══ */
.reading-time{position:fixed;bottom:20px;right:20px;background:rgba(8,8,15,0.85);border:1px solid var(--border);border-radius:8px;padding:6px 12px;font-size:10px;color:var(--dimmer);z-index:100;opacity:0;transition:opacity 0.3s ease;pointer-events:none;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.reading-time.visible{opacity:1}

/* ═══ ATTENTION ARCHITECTURE: ACCENT SIDEBAR MARKS ═══ */
.accent-bar{border-left:2px solid var(--accent,var(--blue));padding-left:16px;margin-left:-18px}

/* ═══ ATTENTION ARCHITECTURE: CALLOUT BOXES ═══ */
.callout{background:var(--glass);border:1px solid var(--border);border-radius:8px;padding:16px 20px;margin:24px 0;font-size:13px;line-height:1.7}
.callout .callout-label{font-size:10px;text-transform:uppercase;letter-spacing:0.1em;color:var(--accent,var(--dim));margin-bottom:8px;font-weight:400}

/* ═══ ATTENTION ARCHITECTURE: INDENT SHIFTS ═══ */
.indent{padding-left:32px}
.outdent{margin-left:-16px;padding-left:16px}

/* ═══ ATTENTION ARCHITECTURE: TYPOGRAPHY SHIFTS ═══ */
.serif-shift{font-family:var(--serif);font-size:1.05em;line-height:1.7;letter-spacing:0.01em}

/* ═══ ATTENTION ARCHITECTURE: MARGIN ICONS ═══ */
.margin-icon{position:relative;padding-left:28px}
.margin-icon::before{content:attr(data-icon);position:absolute;left:0;top:0.15em;font-size:14px;opacity:0.4}

/* ═══ ATTENTION ARCHITECTURE: SCROLL EMPHASIS ═══ */
.emphasis-glow{transition:text-shadow 0.5s ease,color 0.5s ease}
.emphasis-glow.glowing{text-shadow:0 0 20px var(--accent,rgba(116,192,252,0.3));color:var(--fg)}

/* ═══ ATTENTION ARCHITECTURE: BREATHING ROOM ═══ */
.chapter-spacer{height:48px;position:relative}
.chapter-spacer::after{content:'';position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:120px;height:1px;background:linear-gradient(90deg,transparent,var(--accent,var(--dimmer)),transparent)}

/* ═══ ATTENTION: STAGGER DELAYS ═══ */
.reveal-delay-4{transition-delay:0.4s}
.reveal-delay-5{transition-delay:0.5s}

/* ═══ SOUND TOGGLE ═══ */
.sound-toggle{position:fixed;bottom:100px;right:20px;z-index:998;width:36px;height:36px;border:1px solid var(--border);border-radius:50%;background:rgba(8,8,15,0.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:var(--dimmer);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.3s ease;line-height:1}
.sound-toggle:hover{border-color:var(--dim);color:var(--dim);transform:scale(1.08)}
.sound-toggle.active{border-color:var(--blue);color:var(--blue)}
.sound-toggle .sound-ring{position:absolute;inset:-4px;border-radius:50%;border:1px solid var(--blue);opacity:0;animation:sound-pulse 2s ease-out infinite}
.sound-toggle.active .sound-ring{opacity:0.3}
@keyframes sound-pulse{0%{transform:scale(1);opacity:0.3}100%{transform:scale(1.4);opacity:0}}

/* ═══ NARRATION PLAYER ═══ */
.narration-bar{position:fixed;bottom:0;left:0;right:0;z-index:1000;background:rgba(8,8,15,0.95);border-top:1px solid var(--border);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);padding:8px 20px;display:flex;align-items:center;gap:12px;transform:translateY(100%);transition:transform 0.4s var(--reveal-ease);font-size:11px}
.narration-bar.visible{transform:translateY(0)}
.narration-play{width:32px;height:32px;border:1px solid var(--blue);border-radius:50%;background:transparent;color:var(--blue);font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.2s ease;flex-shrink:0}
.narration-play:hover{background:rgba(116,192,252,0.08);transform:scale(1.05)}
.narration-play.playing{border-color:var(--gold);color:var(--gold)}
.narration-progress{flex:1;height:3px;background:var(--border);border-radius:2px;cursor:pointer;position:relative;overflow:hidden}
.narration-progress-fill{height:100%;background:linear-gradient(90deg,var(--blue),var(--gold));width:0%;transition:width 0.2s linear;border-radius:2px}
.narration-info{color:var(--dimmer);white-space:nowrap;min-width:100px;text-align:right;font-variant-numeric:tabular-nums}
.narration-chapter{color:var(--dim);white-space:nowrap;max-width:180px;overflow:hidden;text-overflow:ellipsis}
.narration-close{width:24px;height:24px;border:none;background:transparent;color:var(--dimmer);cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;border-radius:4px;flex-shrink:0}
.narration-close:hover{color:var(--fg);background:var(--glass)}
.narration-toggle{position:fixed;bottom:20px;right:20px;z-index:998;width:36px;height:36px;border:1px solid var(--border);border-radius:50%;background:rgba(8,8,15,0.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);color:var(--dimmer);font-size:15px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 0.3s ease;line-height:1}
.narration-toggle:hover{border-color:var(--dim);color:var(--dim);transform:scale(1.08)}
.narration-toggle.active{border-color:var(--blue);color:var(--blue)}
/* Narrating paragraph highlight */
.narrating{position:relative}
.narrating::before{content:'';position:absolute;left:-20px;top:0;bottom:0;width:2px;background:var(--blue);border-radius:1px;animation:narrate-pulse 2s ease-in-out infinite}
@keyframes narrate-pulse{0%,100%{opacity:0.4}50%{opacity:1}}
@media(max-width:700px){
  .narration-bar{padding:8px 12px;gap:8px}
  .narration-chapter{display:none}
  .narrating::before{left:-12px}
  .narration-toggle,.sound-toggle{width:44px;height:44px;font-size:18px}
  .narration-play{width:38px;height:38px}
  /* Hide individual floating buttons + header hamburger on mobile — toolbar replaces them */
  .sound-toggle,.narration-toggle,.nav-toggle{display:none!important}
  body{padding-bottom:60px}
  /* Mobile toolbar */
  .mobile-toolbar{position:fixed;bottom:0;left:0;right:0;z-index:10000;display:flex;justify-content:space-around;align-items:center;height:56px;background:rgba(8,8,15,0.95);border-top:1px solid var(--border);padding:0 16px;-webkit-tap-highlight-color:transparent}
  .mobile-toolbar button{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;background:none;border:none;color:var(--dimmer);font-size:18px;padding:8px 0;cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
  .mobile-toolbar button span{font-size:9px;letter-spacing:0.5px;text-transform:uppercase}
  .mobile-toolbar button.active{color:var(--blue)}
  /* Narration bar sits above toolbar on mobile */
  .narration-bar{bottom:64px;z-index:10001}
  .narration-bar.visible~.mobile-toolbar #tbNarration{color:var(--blue)}
}

/* ═══ REDUCED MOTION ADDITIONS ═══ */
@media(prefers-reduced-motion:reduce){
  .colophon-mark .ring-outer,.colophon-mark .ring-inner{animation:none}
  .nav-dot{transition:none}
  .emphasis-glow{transition:none}
  .pull-quote::after{background:var(--accent,var(--blue))}
}