/* trademd v2.1 — layout & components (bright space tone; i18n-ready: no text in CSS). Motion respects prefers-reduced-motion. Glow is decorative; status is always text+color. */
*{box-sizing:border-box}
html{font-family:var(--font);color:var(--color-text-primary);background:var(--color-canvas);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
body{margin:0;min-height:100vh;display:flex;flex-direction:column;position:relative;overflow-x:hidden}
a{color:var(--color-action-primary);text-decoration:none}a:hover{color:var(--color-action-hover)}
:focus-visible{outline:2px solid var(--color-focus);outline-offset:3px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
::selection{background:rgba(109,124,255,.35)}

/* ── backdrop: aurora + grid + stars (pure CSS, GPU-friendly) */
.bg{position:fixed;inset:0;z-index:-1;overflow:hidden;background:radial-gradient(1200px 600px at 20% -10%,rgba(124,140,255,.30),transparent 60%),radial-gradient(900px 500px at 90% 10%,rgba(181,156,255,.26),transparent 60%),radial-gradient(800px 500px at 50% 110%,rgba(111,240,219,.16),transparent 60%),var(--color-canvas)}
.bg::before{content:"";position:absolute;inset:-50%;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:64px 64px;transform:perspective(600px) rotateX(60deg) translateY(-10%);mask-image:radial-gradient(ellipse at 50% 30%,#000 20%,transparent 70%);animation:grid-drift 40s linear infinite}
.bg::after{content:"";position:absolute;inset:0 0 55% 0;background-image:radial-gradient(1px 1px at 12% 22%,#fff 60%,transparent),radial-gradient(1px 1px at 78% 8%,#fff 60%,transparent),radial-gradient(1.5px 1.5px at 60% 45%,#cfd6ff 60%,transparent),radial-gradient(1px 1px at 33% 78%,#fff 60%,transparent),radial-gradient(1px 1px at 90% 66%,#cfd6ff 60%,transparent),radial-gradient(1px 1px at 5% 60%,#fff 60%,transparent),radial-gradient(1.5px 1.5px at 45% 12%,#fff 60%,transparent);opacity:.35;animation:twinkle 6s ease-in-out infinite alternate}
.orb{position:absolute;border-radius:50%;filter:blur(60px);opacity:.62;mix-blend-mode:screen;animation:float 18s ease-in-out infinite}
.orb-1{width:520px;height:520px;left:-120px;top:-140px;background:radial-gradient(circle,#7C8CFF,transparent 65%)}
.orb-2{width:420px;height:420px;right:-100px;top:60px;background:radial-gradient(circle,#B59CFF,transparent 65%);animation-delay:-6s}
.orb-3{width:380px;height:380px;left:40%;bottom:-160px;background:radial-gradient(circle,#6FF0DB,transparent 65%);animation-delay:-12s;opacity:.4}
@keyframes float{0%,100%{transform:translate3d(0,0,0) scale(1)}50%{transform:translate3d(30px,-40px,0) scale(1.08)}}
@keyframes grid-drift{to{background-position:0 64px}}
@keyframes twinkle{to{opacity:.95}}

/* ── header */
.testmode{position:relative;z-index:2;background:linear-gradient(90deg,rgba(255,196,102,.16),rgba(255,138,91,.12));color:var(--color-warning-text);font-size:13px;padding:6px var(--s4);text-align:center;letter-spacing:.01em;border-bottom:1px solid rgba(255,196,102,.18)}
.site-header{position:sticky;top:0;z-index:20;backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%);background:rgba(14,19,38,.6);border-bottom:1px solid var(--color-border-decorative)}
.site-header .inner{display:flex;align-items:center;justify-content:space-between;gap:var(--s4);padding:var(--s3) var(--s4);max-width:var(--max-app);margin:0 auto;width:100%;flex-wrap:wrap}
.logo{font-weight:800;font-size:22px;letter-spacing:-.03em;color:var(--color-text-primary);display:inline-flex;align-items:center;gap:10px}
.logo .mark{width:28px;height:28px;border-radius:9px;background:var(--grad-action);display:inline-grid;place-items:center;color:#0A0D1A;font-size:12px;font-weight:900;box-shadow:0 0 24px rgba(109,124,255,.5)}
nav{display:flex;gap:var(--s2);align-items:center;flex-wrap:wrap}
nav a,nav .linkbtn{color:var(--color-text-secondary);font-weight:500;padding:8px 12px;border-radius:999px;transition:color var(--dur-1),background var(--dur-1)}
nav a:hover,nav .linkbtn:hover{color:var(--color-text-primary);background:var(--color-surface-strong)}
nav a.active{color:var(--color-text-primary);background:var(--color-surface-strong)}

/* ── buttons */
.btn,button.btn{position:relative;display:inline-flex;white-space:nowrap;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 var(--s6);border-radius:var(--r-btn);background:var(--grad-action);color:var(--color-action-onPrimary)!important;font-weight:700;border:0;cursor:pointer;font:inherit;font-size:15px;letter-spacing:-.01em;transition:transform var(--dur-1) var(--ease-out),box-shadow var(--dur-2) var(--ease-out),filter var(--dur-1);box-shadow:0 10px 30px -12px rgba(109,124,255,.7);isolation:isolate;overflow:hidden}
.btn::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);transform:translateX(-120%);transition:transform var(--dur-3) var(--ease-out)}
.btn:hover{transform:translateY(-1px);box-shadow:0 16px 40px -12px rgba(109,124,255,.9);filter:saturate(1.1)}.btn:hover::after{transform:translateX(120%)}
.btn:active{transform:translateY(0) scale(.98)}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;filter:grayscale(.4)}
.btn-outline{background:var(--color-surface);color:var(--color-text-primary)!important;border:1px solid var(--color-border-control);box-shadow:none;backdrop-filter:blur(8px)}
.btn-outline:hover{background:var(--color-surface-strong);border-color:var(--color-border-glow);box-shadow:0 0 0 3px rgba(109,124,255,.15)}
.btn-ghost{background:transparent;color:var(--color-text-secondary)!important;box-shadow:none}.btn-ghost:hover{color:var(--color-text-primary)!important;background:var(--color-surface-strong)}
.linkbtn{background:none;border:0;color:var(--color-text-secondary);cursor:pointer;font:inherit;padding:0}.linkbtn:hover{color:var(--color-text-primary)}
.btn-sm{min-height:36px;padding:0 var(--s4);font-size:14px}

/* ── layout */
main.screen{position:relative;z-index:1;outline:none!important;flex:1;width:100%;max-width:var(--max-app);margin:0 auto;padding:var(--s10) var(--s4) var(--s16)}
.site-footer{position:relative;z-index:1;padding:var(--s10) var(--s4);color:var(--color-text-tertiary);font-size:13px;text-align:center;border-top:1px solid var(--color-border-decorative)}
.site-footer a{color:var(--color-text-secondary)}
.muted{color:var(--color-text-secondary)}.tertiary{color:var(--color-text-tertiary)}.loading{color:var(--color-text-secondary)}
h1{font-size:clamp(30px,3.2vw,42px);line-height:1.15;font-weight:800;letter-spacing:-.03em;margin:0 0 var(--s4)}
h2{font-size:22px;font-weight:700;letter-spacing:-.02em;margin:var(--s10) 0 var(--s4)}
h3{font-size:18px;font-weight:700;letter-spacing:-.01em;margin:0 0 var(--s2)}
.display{font-size:clamp(40px,6.4vw,84px);line-height:1.02;font-weight:800;letter-spacing:-.045em;margin:var(--s16) 0 var(--s5);text-align:center}
.display .grad,.grad{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{font-size:clamp(17px,1.5vw,21px);color:var(--color-text-secondary);text-align:center;max-width:var(--max-read);margin:0 auto var(--s8);line-height:1.55}
.hero-cta{display:flex;gap:var(--s3);justify-content:center;flex-wrap:wrap;margin-bottom:var(--s12)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--color-text-secondary);padding:6px 14px;border-radius:999px;border:1px solid var(--color-border-decorative);background:var(--color-surface);backdrop-filter:blur(8px)}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:#5EEAD4;box-shadow:0 0 12px #5EEAD4;animation:pulse 2s ease-in-out infinite}
@keyframes pulse{50%{opacity:.4;transform:scale(.8)}}
.center{text-align:center}

/* ── cards (glass) */
.card{position:relative;background:var(--color-surface);border:1px solid var(--color-border-decorative);border-radius:var(--r-card);padding:var(--s6);box-shadow:var(--shadow-card);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);transition:transform var(--dur-2) var(--ease-out),box-shadow var(--dur-2) var(--ease-out),border-color var(--dur-2)}
.card.interactive,.asset-card{cursor:pointer}
.card.interactive:hover,.asset-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--color-border-glow)}
.card.tilt{transform-style:preserve-3d;will-change:transform}
.card .shine{pointer-events:none;position:absolute;inset:0;border-radius:inherit;background:radial-gradient(400px circle at var(--mx,50%) var(--my,50%),rgba(255,255,255,.10),transparent 45%);opacity:0;transition:opacity var(--dur-2)}
.card:hover .shine{opacity:1}
.grid{display:grid;gap:var(--s5);grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.asset-card h3 a{color:var(--color-text-primary)}.asset-card h3 a:hover{color:#fff}
.asset-card .price{display:flex;align-items:baseline;gap:6px;margin-top:var(--s3)}
.asset-card .price strong{font-size:20px;letter-spacing:-.02em}
.feature-num{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--color-action-2);margin-bottom:var(--s2)}

/* ── search */
.search{display:flex;gap:var(--s2);max-width:var(--max-search);margin:0 auto var(--s8);padding:6px;border-radius:999px;background:var(--color-surface);border:1px solid var(--color-border-decorative);backdrop-filter:blur(14px);transition:box-shadow var(--dur-2),border-color var(--dur-2)}
.search:focus-within{border-color:var(--color-border-glow);box-shadow:0 0 0 4px rgba(109,124,255,.15),0 20px 60px -20px rgba(109,124,255,.5)}
.search input{border:0!important;background:transparent!important;padding-left:var(--s5)!important;min-height:44px}
.search input:focus{outline:none}
.search .btn{min-height:44px;flex:0 0 auto;white-space:nowrap}

/* ── forms */
input[type=text],input[type=search],input[type=file],textarea,select{font:inherit;color:var(--color-text-primary);padding:var(--s3) var(--s4);border:1px solid var(--color-border-control);border-radius:var(--r-field);width:100%;min-height:46px;background:rgba(255,255,255,.05);transition:border-color var(--dur-1),box-shadow var(--dur-1)}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--color-border-glow);box-shadow:0 0 0 4px rgba(109,124,255,.15)}
input::placeholder{color:var(--color-text-tertiary)}
select option{background:#141A33}
label{display:block;font-size:13px;font-weight:600;color:var(--color-text-secondary);margin:var(--s3) 0 var(--s1)}
.checkbox{display:flex;gap:var(--s3);align-items:flex-start;margin:var(--s3) 0;font-weight:400;color:var(--color-text-primary);font-size:15px}
.checkbox input{width:20px;height:20px;margin-top:3px;accent-color:var(--color-action-primary)}
input[type=file]{padding:var(--s6);border-style:dashed;text-align:center;cursor:pointer}
input[type=file]:hover{border-color:var(--color-border-glow);background:var(--color-surface)}

/* ── chips / badges */
.chip{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--color-surface-strong);color:var(--color-text-secondary);margin-right:6px;border:1px solid var(--color-border-decorative);letter-spacing:.01em}
.badge-ok{background:var(--color-success-surface);color:var(--color-success-text);border-color:rgba(52,245,197,.25)}
.badge-warn{background:var(--color-warning-surface);color:var(--color-warning-text);border-color:rgba(255,196,102,.25)}
.badge-danger{background:var(--color-danger-surface);color:var(--color-danger-text);border-color:rgba(255,107,122,.25)}
.badge-ai{background:var(--color-ai-surface);color:var(--color-ai-text)}
.badge-contrib{background:var(--color-contribution-surface);color:var(--color-contribution-text);border-color:rgba(52,245,197,.25)}

/* ── amounts / stats */
.amount{font-size:32px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.03em}
.amount small{font-size:16px;font-weight:600;color:var(--color-text-secondary);margin-left:4px}
.credit-board{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--s4);margin-bottom:var(--s6)}
.stat{padding:var(--s5) var(--s6)}
.stat .label{font-size:13px;color:var(--color-text-secondary);margin-bottom:6px}
.stat .amount{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.counter{display:inline-block}

/* ── tables */
table{width:100%;border-collapse:separate;border-spacing:0;font-size:14px;background:var(--color-surface);border:1px solid var(--color-border-decorative);border-radius:var(--r-card);overflow:hidden;backdrop-filter:blur(10px)}
th{text-align:left;padding:var(--s3) var(--s4);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--color-text-tertiary);border-bottom:1px solid var(--color-border-decorative);background:rgba(255,255,255,.02)}
td{padding:var(--s3) var(--s4);border-bottom:1px solid var(--color-border-decorative);vertical-align:top}
tbody tr:last-child td{border-bottom:0}
tbody tr{transition:background var(--dur-1)}tbody tr:hover{background:var(--color-surface-subtle)}
code,.hash{font-family:var(--mono);font-size:13px;word-break:break-all;color:var(--color-text-secondary)}

/* ── notices */
.notice{display:flex;gap:10px;align-items:flex-start;padding:var(--s3) var(--s4);border-radius:var(--r-field);margin:var(--s3) 0;font-size:14px;border:1px solid transparent;animation:rise var(--dur-2) var(--ease-out)}
.notice::before{content:"";flex:0 0 8px;height:8px;margin-top:7px;border-radius:50%;background:currentColor;box-shadow:0 0 10px currentColor}
.notice-info{background:var(--color-surface-strong);color:var(--color-text-primary);border-color:var(--color-border-decorative)}
.notice-warn{background:var(--color-warning-surface);color:var(--color-warning-text);border-color:rgba(255,196,102,.25)}
.notice-danger{background:var(--color-danger-surface);color:var(--color-danger-text);border-color:rgba(255,107,122,.25)}
.notice-ok{background:var(--color-success-surface);color:var(--color-success-text);border-color:rgba(52,245,197,.25)}

/* ── modal */
.modal-backdrop{position:fixed;inset:0;background:rgba(6,9,20,.6);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;z-index:40;padding:var(--s4);animation:fade var(--dur-2) var(--ease-out)}
.modal{background:linear-gradient(180deg,rgba(30,38,68,.98),rgba(20,26,51,.98));border:1px solid var(--color-border-decorative);border-radius:var(--r-modal);padding:var(--s8);max-width:540px;width:100%;box-shadow:var(--shadow-modal);max-height:90vh;overflow:auto;animation:pop var(--dur-3) var(--ease-spring)}
.modal table{background:transparent;border:0}.modal td{padding:8px 0}
@keyframes fade{from{opacity:0}}
@keyframes pop{from{opacity:0;transform:translateY(16px) scale(.96)}}
@keyframes rise{from{opacity:0;transform:translateY(8px)}}

/* ── steps (upload flow) */
.steps{display:flex;gap:6px;align-items:center;margin-bottom:var(--s8);font-size:13px;flex-wrap:wrap}
.steps span{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:var(--color-surface);border:1px solid var(--color-border-decorative);color:var(--color-text-secondary);font-weight:600;transition:all var(--dur-2)}
.steps span::before{content:attr(data-n);display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--color-surface-strong);font-size:11px}
.steps .current{background:var(--grad-action);color:#0A0D1A;border-color:transparent;box-shadow:0 0 30px -8px rgba(109,124,255,.9)}
.steps .current::before{background:rgba(0,0,0,.2)}
.steps .done{color:var(--color-success-text);border-color:rgba(52,245,197,.3)}.steps .done::before{content:"✓";background:var(--color-success-surface)}
.steps i{width:16px;height:1px;background:var(--color-border-decorative)}
.row-actions{display:flex;gap:var(--s3);flex-wrap:wrap;align-items:center;margin-top:var(--s4)}

/* ── markdown/preview */
pre.md{white-space:pre-wrap;background:rgba(0,0,0,.28);border:1px solid var(--color-border-decorative);border-radius:var(--r-card);padding:var(--s5) var(--s6);font-family:var(--mono);font-size:13.5px;line-height:1.7;overflow:auto;color:#D7DCF0;position:relative}
pre.md.preview::after{content:"";position:absolute;left:0;right:0;bottom:0;height:120px;background:linear-gradient(transparent,var(--color-canvas-2));pointer-events:none;border-radius:0 0 var(--r-card) var(--r-card)}

/* ── reveal on scroll */
.reveal{transition:opacity var(--dur-3) var(--ease-out),transform var(--dur-3) var(--ease-out)}
.reveal.pre{opacity:0;transform:translateY(18px)}
.reveal.in{opacity:1;transform:none}
.stagger>*{opacity:0;transform:translateY(14px);animation:rise-in var(--dur-3) var(--ease-out) forwards}
.stagger>*:nth-child(1){animation-delay:.02s}.stagger>*:nth-child(2){animation-delay:.08s}.stagger>*:nth-child(3){animation-delay:.14s}.stagger>*:nth-child(4){animation-delay:.2s}.stagger>*:nth-child(5){animation-delay:.26s}.stagger>*:nth-child(6){animation-delay:.32s}.stagger>*:nth-child(n+7){animation-delay:.38s}
@keyframes rise-in{to{opacity:1;transform:none}}

/* ── hero marquee of tags */
.marquee{overflow:hidden;mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);margin:var(--s8) auto var(--s12);max-width:var(--max-app)}
.marquee .track{display:flex;gap:10px;width:max-content;animation:marquee 40s linear infinite}
.marquee:hover .track{animation-play-state:paused}
.marquee .chip{font-size:13px;padding:8px 16px;margin:0;white-space:nowrap}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ── progress / skeleton */
.skeleton{background:linear-gradient(90deg,var(--color-surface) 25%,var(--color-surface-strong) 50%,var(--color-surface) 75%);background-size:200% 100%;animation:shimmer 1.4s infinite;border-radius:12px;min-height:120px}
@keyframes shimmer{to{background-position:-200% 0}}
.progress{height:6px;border-radius:999px;background:var(--color-surface-strong);overflow:hidden}
.progress>i{display:block;height:100%;background:var(--grad-action);width:var(--p,0%);transition:width var(--dur-3) var(--ease-out)}
.spinner{width:18px;height:18px;border-radius:50%;border:2px solid rgba(255,255,255,.2);border-top-color:#fff;animation:spin .8s linear infinite;display:inline-block;vertical-align:middle}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── toast */
#toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);z-index:60;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{pointer-events:auto;padding:12px 18px;border-radius:14px;background:rgba(30,38,68,.96);border:1px solid var(--color-border-glow);color:var(--color-text-primary);font-size:14px;box-shadow:var(--shadow-modal);animation:pop var(--dur-3) var(--ease-spring)}

/* ── misc */
hr.sep{border:0;height:1px;background:linear-gradient(90deg,transparent,var(--color-border-control),transparent);margin:var(--s12) 0}
.kbd{font-family:var(--mono);font-size:12px;padding:2px 6px;border-radius:6px;border:1px solid var(--color-border-control);color:var(--color-text-secondary)}
.two-col{display:grid;gap:var(--s6);grid-template-columns:1.4fr 1fr}
@media (max-width:860px){.two-col{grid-template-columns:1fr}}
@media (max-width:640px){main.screen{padding:var(--s6) var(--s4) var(--s12)}.hero-cta .btn{width:100%}.display{margin-top:var(--s8)}.orb{filter:blur(40px)}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}.reveal,.stagger>*{opacity:1;transform:none}.bg::before,.bg::after,.orb{animation:none}}

/* ── language switcher (ADR-004) */
.lang{margin:0;display:inline-flex;align-items:center}
.lang select{min-height:36px;width:auto;padding:6px 30px 6px 12px;font-size:13px;font-weight:600;border-radius:999px;background:var(--color-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23B4BDD6' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat right 12px center;appearance:none;-webkit-appearance:none;color:var(--color-text-secondary);border-color:var(--color-border-decorative);cursor:pointer}
.lang select:hover{color:var(--color-text-primary);background-color:var(--color-surface-strong)}

/* ── hero flow (M01): upload → earn → improve, each line lands in sequence */
.hero-flow{line-height:1.06}
.hero-flow .step-a,.hero-flow .step-b,.hero-flow .step-c{display:inline-block;opacity:0;transform:translateY(18px);animation:rise-in var(--dur-3) var(--ease-out) forwards}
.hero-flow .step-a{animation-delay:.05s}.hero-flow .step-b{animation-delay:.35s}.hero-flow .step-c{animation-delay:.65s;font-size:.62em;font-weight:700;color:var(--color-text-secondary);letter-spacing:-.03em;margin-top:.15em}
.flow{counter-reset:none;position:relative}
.flow>.card{position:relative}
@media (min-width:760px){.flow>.card:not(:last-child)::after{content:"→";position:absolute;right:-22px;top:50%;transform:translateY(-50%);color:var(--color-action-2);font-size:22px;font-weight:800;opacity:.7}}

/* ── storyline (M02 Trade MD TIP · M04 Philosophy) */
.story{position:relative}
.scroll-hint{margin:-12px 0 var(--s10);font-size:13px}
.scroll-hint .arrow{display:inline-block;animation:bob 1.6s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(4px)}}
.story-rail{position:fixed;right:18px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:10px;z-index:5}
.story-rail a{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700;color:var(--color-text-tertiary);background:var(--color-surface);border:1px solid var(--color-border-decorative);backdrop-filter:blur(8px);transition:all var(--dur-2)}
.story-rail a.on{color:#0B0F1F;background:var(--grad-action);border-color:transparent;box-shadow:0 0 20px -4px rgba(124,140,255,.9)}
.chapters{list-style:none;margin:0 auto;padding:0;max-width:880px;position:relative}
.chapters::before{content:"";position:absolute;left:34px;top:0;bottom:0;width:2px;background:linear-gradient(180deg,transparent,var(--color-border-glow) 8%,var(--color-border-glow) 92%,transparent)}
.chapter{position:relative;display:grid;grid-template-columns:70px 1fr;gap:var(--s5);padding:var(--s6) 0;scroll-margin-top:96px}
.chapter-num{position:sticky;top:120px;align-self:start;width:70px;text-align:center;font-family:var(--mono);font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--color-action-2)}
.chapter-num::before{content:"";display:block;width:14px;height:14px;margin:0 auto 8px;border-radius:50%;background:var(--grad-action);box-shadow:0 0 0 6px var(--color-canvas),0 0 0 7px var(--color-border-glow),0 0 24px rgba(124,140,255,.8)}
.chapter-card h2{margin:var(--s2) 0 var(--s3);font-size:clamp(22px,2.4vw,30px);letter-spacing:-.025em}
.chapter-card p{font-size:17px;line-height:1.7;margin:0}
.chapter.reveal.pre{transform:translateX(24px)}
.closing{margin-top:var(--s16)}
.closing-card{max-width:760px;margin:0 auto;padding:var(--s10) var(--s8);background:linear-gradient(180deg,rgba(124,140,255,.14),rgba(255,255,255,.05));border-color:var(--color-border-glow)}
.closing-card h2{margin:0 0 var(--s3);font-size:clamp(26px,3vw,38px)}
@media (max-width:860px){.story-rail{display:none}.chapters::before{left:14px}.chapter{grid-template-columns:30px 1fr;gap:var(--s3)}.chapter-num{width:30px;font-size:0}.chapter-num::before{margin:6px auto 0}}