:root{--navy:#0b2a5b;--red:#c8102e;--gold:#f2b705;--bg:#f7f9fc;--card:#fff;--ink:#16233a;--mut:#5a6a85;--ok:#177245;--bad:#b3261e}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65}
header{background:var(--navy);color:#fff;padding:12px 0;position:sticky;top:0;z-index:20}
.wrap{max-width:1040px;margin:0 auto;padding:0 16px}
.brand{font-weight:800;font-size:1.12rem}.brand .star{color:var(--gold)}
nav.main{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}
nav.main a{color:#fff;text-decoration:none;border:1px solid #ffffff44;padding:6px 11px;border-radius:999px;font-size:.92rem}
nav.main a:hover{background:#ffffff22}
.crumbs{font-size:.88rem;color:var(--mut);margin:14px 0 4px}.crumbs a{color:var(--navy)}
.hero{background:linear-gradient(135deg,var(--navy),#14407f);color:#fff;padding:32px 0}
.hero h1{font-size:1.85rem;line-height:1.25;margin:.2em 0}
.btn{display:inline-block;background:var(--red);color:#fff;padding:11px 18px;border-radius:10px;text-decoration:none;font-weight:700;margin:6px 6px 0 0;border:0;cursor:pointer;font-size:1rem}
.btn.alt{background:var(--navy)}.btn.gold{background:var(--gold);color:#111}.btn.ghost{background:#fff;color:var(--navy);border:1px solid #c9d4e8}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;margin:16px 0}
.card{background:var(--card);border-radius:14px;padding:18px;box-shadow:0 1px 4px #0b2a5b14}
.card h3{margin-top:0}.tag{display:inline-block;background:#e8eefb;color:var(--navy);border-radius:999px;padding:2px 10px;font-size:.78rem;font-weight:700;margin:2px}
.tag.soon{background:#f1f1f1;color:#777}
section.block{padding:8px 0}h1{line-height:1.3}h2{margin-top:1.2em}
iframe.vid{width:100%;aspect-ratio:16/9;border:0;border-radius:12px}
.q{margin:12px 0;padding:14px;background:#fff;border-radius:12px;box-shadow:0 1px 4px #0b2a5b14}
.q p{font-weight:600;margin:.2em 0 .6em}.q label{display:block;padding:8px 10px;border:1px solid #dde4f0;border-radius:8px;margin:6px 0;cursor:pointer}
.q label.pick{border-color:var(--navy);background:#eef3fd}.q label.right{border-color:var(--ok);background:#e7f6ee}.q label.wrong{border-color:var(--bad);background:#fdeceb}
.q input[type=text]{width:100%;padding:10px;border:1px solid #c9d4e8;border-radius:8px;font-size:1rem}
.q input.right{border-color:var(--ok);background:#e7f6ee}.q input.wrong{border-color:var(--bad);background:#fdeceb}
.expl{display:none;background:#fff8e1;border-left:4px solid var(--gold);padding:10px 12px;border-radius:8px;margin-top:8px}.expl.show{display:block}
.score{display:none;background:var(--navy);color:#fff;padding:16px;border-radius:12px;margin:16px 0}.score.show{display:block}
details{background:#fff;border-radius:10px;padding:12px 14px;margin:10px 0;box-shadow:0 1px 4px #0b2a5b14}
footer{background:#0b2a5b;color:#cdd8ee;padding:26px 0;font-size:.92rem;margin-top:34px}footer a{color:#fff}
.small{color:var(--mut);font-size:.92rem}.word{font-size:1.45rem;font-weight:800;color:var(--navy)}
table{border-collapse:collapse;width:100%;background:#fff}td,th{border:1px solid #dde4f0;padding:8px 10px;text-align:left}
.formula{background:#eef3fd;border-radius:10px;padding:12px 14px;font-family:ui-monospace,monospace;font-size:.95rem;overflow-x:auto}
.cta{background:#fff8e1;border:1px solid var(--gold);border-radius:12px;padding:16px;margin:18px 0}
input.searchbox{width:100%;padding:13px;border:2px solid #c9d4e8;border-radius:10px;font-size:1.05rem}
.kbd{background:#eef3fd;border-radius:6px;padding:1px 7px}
ul.tight li{margin:4px 0}
/* ---- Visual upgrade v2: level colors, lesson components ---- */
.tag.lv-A1{background:#e2f4e5;color:#177245}.tag.lv-A2{background:#e0f2f1;color:#00695c}
.tag.lv-B1{background:#e8eefb;color:#0b2a5b}.tag.lv-B2{background:#f0e7f8;color:#5e35b1}
.tag.lv-C1{background:#fbe4e6;color:#b3261e}
.card{border-top:4px solid #dbe4f2;transition:transform .15s ease,box-shadow .15s ease}
.card:hover{transform:translateY(-3px);box-shadow:0 8px 20px #0b2a5b1f}
.card.lv-A1{border-top-color:#34a853}.card.lv-A2{border-top-color:#00897b}
.card.lv-B1{border-top-color:#0b2a5b}.card.lv-B2{border-top-color:#7b1fa2}.card.lv-C1{border-top-color:#c8102e}
.wrap h2{border-bottom:3px solid #eef3fd;padding-bottom:6px}
ul.examples{list-style:none;padding:0;margin:10px 0}
ul.examples li{background:#fff;border-left:4px solid var(--gold);border-radius:8px;padding:9px 12px;margin:7px 0;box-shadow:0 1px 3px #0b2a5b10}
ul.examples.neg li{border-left-color:#d7dde8}
.mistake{background:#fff;border:1px solid #f0d9d7;border-left:4px solid var(--bad);border-radius:10px;padding:10px 12px;margin:8px 0}
.mistake .w{display:block;color:var(--bad);text-decoration:line-through;text-decoration-thickness:1px}
.mistake .r{display:block;color:var(--ok);font-weight:700;margin-top:2px}
.mistake .why{display:block;color:var(--mut);font-size:.92rem;margin-top:4px}
.chat{display:flex;flex-direction:column;gap:8px;margin:12px 0}
.bubble{max-width:85%;padding:10px 14px;border-radius:16px;background:#eef3fd;box-shadow:0 1px 3px #0b2a5b12}
.bubble.me{align-self:flex-end;background:var(--navy);color:#fff;border-bottom-right-radius:4px}
.bubble.them{align-self:flex-start;border-bottom-left-radius:4px}
.bubble .who{display:block;font-size:.75rem;font-weight:800;letter-spacing:.04em;opacity:.75;margin-bottom:2px}
.callout{border-radius:12px;padding:14px 16px;margin:12px 0}
.callout.us{background:#eef4ff;border:1px solid #c9d9f6}
.callout.compare{background:#fdf6e0;border:1px solid #ecd98a}
.callout .flag{font-weight:800;font-size:.8rem;letter-spacing:.05em;text-transform:uppercase;display:block;margin-bottom:4px}
.remember{background:linear-gradient(135deg,#fff8e1,#ffefc2);border:1px solid var(--gold);border-radius:12px;padding:14px 16px;font-weight:600}
.summarybox{background:var(--navy);color:#fff;border-radius:12px;padding:16px 18px;margin:14px 0}
.summarybox strong{color:var(--gold)}
.formula.steps{background:#eaf7ee;border:1px solid #bfe6cb;white-space:pre-line;font-family:inherit}
#readbar{position:fixed;top:0;left:0;height:4px;background:linear-gradient(90deg,var(--red),var(--gold));width:0;z-index:50}
.hero .stats{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
.hero .stat{background:#ffffff1f;border:1px solid #ffffff38;border-radius:999px;padding:6px 14px;font-weight:700;font-size:.95rem}
.hero .stat b{color:var(--gold)}
/* ---- TOEFL section ---- */
.mapchain{display:flex;flex-direction:column;gap:0;margin:16px 0}
.mapstep{background:#fff;border:1px solid #dbe4f2;border-left:5px solid var(--navy);border-radius:12px;padding:13px 16px;box-shadow:0 1px 3px #0b2a5b10}
.mapstep h3{margin:0 0 4px}.mapstep p{margin:0}
.maparrow{text-align:center;font-size:1.3rem;color:var(--gold);line-height:1.1;padding:2px 0}
table.bands td:first-child{font-weight:800;color:var(--navy)}
.pathmeta{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0}
/* TOEFL redesign */
.thero{background:linear-gradient(120deg,#0b2545,#0e4d64 55%,#0f766e);color:#fff;border-radius:16px;padding:26px 22px;margin:14px 0 18px}
.thero h1{color:#fff;margin:0 0 8px}.thero p{color:#dbeafe;max-width:640px}
.thero .tag{background:rgba(255,255,255,.16);color:#fff}
.bandbar{display:flex;gap:4px;margin:12px 0}
.bandbar div{flex:1;text-align:center;padding:8px 2px;border-radius:8px;color:#fff;font-weight:700;font-size:.85rem}
.bandbar small{display:block;font-weight:400;opacity:.85}
.bb1{background:#94a3b8}.bb2{background:#60a5fa}.bb3{background:#38bdf8}.bb4{background:#34d399}.bb5{background:#f59e0b}.bb6{background:#ef4444}
.scard{border-top:6px solid #0e4d64}
.sc-reading{border-top-color:#2563eb}.sc-listening{border-top-color:#0f766e}.sc-speaking{border-top-color:#ea580c}.sc-writing{border-top-color:#7c3aed}
.pathstrip{display:flex;flex-wrap:wrap;gap:6px;align-items:center;margin:10px 0}
.pathstrip span{background:#eef2ff;border:1px solid #c7d2fe;border-radius:999px;padding:5px 12px;font-size:.85rem;font-weight:600}
.pathstrip i{color:#94a3b8;font-style:normal}
.recbox{background:#0b2545;color:#fff;border-radius:14px;padding:18px;margin:14px 0}
.recbox .btn{margin-right:8px}
.recbox audio{width:100%;margin-top:10px}
.checklist{list-style:none;padding:0}
.checklist li{padding:6px 0;border-bottom:1px dashed #e2e8f0}
.checklist input{margin-right:8px;transform:scale(1.2)}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0}
.chip{background:#eef2ff;border:1.5px solid #6366f1;color:#1e1b4b;border-radius:999px;padding:6px 12px;font-weight:600;cursor:pointer}
.chip.used{opacity:.3;pointer-events:none}
.basline{min-height:44px;background:#fffbeb;border:1.5px dashed #f59e0b;border-radius:10px;padding:10px;margin:8px 0;font-weight:600}
textarea.wtext{width:100%;min-height:220px;border:1.5px solid #cbd5e1;border-radius:12px;padding:12px;font:inherit}
.wfb{background:#f0fdf4;border:1px solid #bbf7d0;border-radius:12px;padding:14px;margin-top:10px;display:none}
.wfb.show{display:block}
.wordcard{background:var(--card);border-radius:14px;padding:18px;box-shadow:0 1px 4px #0b2a5b14;border-top:4px solid #0f766e;margin-bottom:14px;text-align:left}
.wordcard h3{margin:0 0 2px}.wordcard .pron{color:#64748b}
.srscard{background:#fffbeb;border:2px solid #f59e0b;border-radius:16px;padding:22px;text-align:center;cursor:pointer;margin:12px 0}
.wstat{margin-top:10px;display:flex;gap:6px;flex-wrap:wrap}.wstat .small{width:100%}
.wstat button{border:1.5px solid #cbd5e1;background:#fff;border-radius:999px;padding:5px 12px;font-weight:600;cursor:pointer;font-size:.85rem}
.wstat button.gold{background:#f59e0b;border-color:#f59e0b;color:#fff}

/* ================= DESIGN SYSTEM v3 (Phase 1) ================= */
:root{
--primary:#0b2a5b; --primary-dark:#071d40; --accent:#0e7c72; --accent-soft:#e2f2ef;
--yellow:#f5a800; --background:#faf8f3; --surface:#ffffff; --text:#182238; --text-muted:#5b6a84;
--border:#e5dfd2; --success:#177245; --error:#b3261e;
--navy:var(--primary); --gold:var(--yellow); --bg:var(--background); --card:var(--surface);
--ink:var(--text); --mut:var(--text-muted); --ok:var(--success); --bad:var(--error); --red:var(--accent);
--shadow:0 1px 3px rgba(11,42,91,.08),0 4px 14px rgba(11,42,91,.05);
--shadow-lg:0 2px 6px rgba(11,42,91,.09),0 12px 32px rgba(11,42,91,.10);
--radius:16px;
}
html{scroll-behavior:smooth}
body{font-size:17px;line-height:1.7;background:var(--background);color:var(--text)}
h1{font-size:2rem;line-height:1.22;letter-spacing:-.01em;margin:.35em 0 .45em}
h2{font-size:1.48rem;line-height:1.3;letter-spacing:-.01em;margin:1.5em 0 .55em}
h3{font-size:1.16rem;line-height:1.35;margin:.9em 0 .4em}
.wrap{max-width:1080px}
.wrap>p,.wrap>ul li,.wrap>ol li{max-width:72ch}
header{background:var(--primary-dark);border-bottom:3px solid var(--accent);box-shadow:0 2px 10px rgba(7,29,64,.25)}
.brand{letter-spacing:-.01em}
nav.main a{border-color:#ffffff33;transition:background .15s ease,border-color .15s ease}
nav.main a:hover{background:#ffffff26;border-color:#ffffff66}
.btn{border-radius:12px;padding:12px 20px;transition:transform .15s ease,box-shadow .15s ease,background .15s ease;box-shadow:var(--shadow)}
.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.btn:active{transform:translateY(0)}
.btn.alt{background:var(--primary)}
.btn.gold{background:var(--yellow);color:#231a00}
a:focus-visible,button:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.tag{background:var(--accent-soft);color:var(--primary)}
.q{background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow)}
details{background:var(--surface);border:1px solid var(--border)}
table{background:var(--surface)}
.hero{background:linear-gradient(140deg,var(--primary-dark),var(--primary) 55%,#11457f);padding:40px 0}
.thero{background:linear-gradient(140deg,var(--primary-dark),var(--primary) 60%,var(--accent))}
.cta{background:#fff8e6;border-color:var(--yellow)}
footer{background:var(--primary-dark);color:#c7d3ea}
footer a{color:#fff;text-decoration:none}footer a:hover{text-decoration:underline}
.fcols{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:20px;margin:8px 0 14px}
.fcols h4{color:#fff;margin:0 0 8px;font-size:.95rem;letter-spacing:.02em}
.fcols a{display:block;padding:3px 0;color:#c7d3ea;font-size:.92rem}
.fcols a:hover{color:#fff}
.fbrand{max-width:300px}
.score{background:var(--primary-dark)}
/* --- Homepage components --- */
.hero2{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:center}
.hero2 h1{font-size:2.5rem;margin:.1em 0 .3em}
.hero2 .sub{font-size:1.13rem;color:#d7e2f4;max-width:52ch}
.illus{width:100%;height:auto;display:block}
.statstrip{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.statstrip .stat{background:#ffffff14;border:1px solid #ffffff2e;color:#eaf1fb;border-radius:999px;padding:6px 14px;font-size:.92rem}
.statstrip .stat b{color:#fff}
.contcard{background:var(--surface);border:1px solid var(--border);border-left:6px solid var(--accent);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 22px;margin:22px 0}
.prog{height:12px;background:#ece7db;border-radius:999px;overflow:hidden;margin:8px 0}
.prog>i{display:block;height:100%;background:linear-gradient(90deg,var(--accent),#12a594);border-radius:999px;transition:width .8s ease}
.today{background:linear-gradient(150deg,#fff8e6,#fff);border:1.5px solid var(--yellow);border-radius:20px;padding:22px;box-shadow:var(--shadow);margin:22px 0}
.today .tk{letter-spacing:.14em;font-size:.8rem;font-weight:800;color:#9a6b00}
.today h2{margin:.15em 0 .3em}
.path{display:flex;align-items:stretch;gap:0;margin:18px 0;overflow-x:auto;padding-bottom:6px}
.pnode{flex:1;min-width:150px;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:14px;position:relative;box-shadow:var(--shadow)}
.pnode+.pnode{margin-left:22px}
.pnode+.pnode:before{content:"→";position:absolute;left:-19px;top:50%;transform:translateY(-50%);color:var(--accent);font-weight:800}
.pnode .pl{font-size:1.3rem;font-weight:800;color:var(--primary)}
.pnode.lv-A1{border-top:5px solid #2e9e5b}.pnode.lv-A2{border-top:5px solid #0e7c72}.pnode.lv-B1{border-top:5px solid #0b2a5b}.pnode.lv-B2{border-top:5px solid #5e35b1}.pnode.lv-C1{border-top:5px solid #b3261e}
.journey{margin:16px 0;border-left:3px solid var(--accent-soft);padding-left:0}
.jstep{display:flex;gap:14px;padding:10px 0 10px 18px;position:relative}
.jstep:before{content:"";position:absolute;left:-8px;top:20px;width:13px;height:13px;border-radius:50%;background:var(--accent);border:3px solid #fff;box-shadow:0 0 0 2px var(--accent-soft)}
.jstep b{color:var(--primary)}
.feat{display:grid;grid-template-columns:1.2fr .8fr;gap:0;background:var(--surface);border:1px solid var(--border);border-radius:20px;overflow:hidden;box-shadow:var(--shadow);margin:20px 0}
.feat .ft{padding:24px}
.feat .fs{background:linear-gradient(150deg,var(--accent-soft),#fdf6e0);padding:24px;display:flex;flex-direction:column;justify-content:center;gap:8px}
.vs{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:14px 16px;margin:10px 0;box-shadow:var(--shadow)}
.vs .tb{color:var(--text-muted)}
.vs .nt{font-weight:700;color:var(--primary)}
.vs .arr{color:var(--accent);font-weight:800;font-size:1.2rem}
.skillrow{display:flex;gap:14px;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:14px 16px;margin:10px 0;box-shadow:var(--shadow);transition:transform .15s ease,box-shadow .15s ease}
.skillrow:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.skillrow .ic{flex:0 0 46px;height:46px;border-radius:12px;background:var(--accent-soft);display:flex;align-items:center;justify-content:center;color:var(--primary)}
.skillrow h3{margin:0}
.skillrow p{margin:2px 0 0}
.skillrow .go{margin-left:auto;font-weight:800;color:var(--accent);white-space:nowrap}
.toefband{background:linear-gradient(140deg,var(--primary-dark),var(--primary));color:#e8eefb;border-radius:20px;padding:26px;margin:24px 0;box-shadow:var(--shadow-lg)}
.toefband h2{color:#fff;margin-top:0}
.toefband a{color:#ffd34d}
.ic svg{width:24px;height:24px}
.js .rv{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.js .rv.in{opacity:1;transform:none}
@media (max-width:760px){
.hero2{grid-template-columns:1fr}.hero2 h1{font-size:2rem}
.feat{grid-template-columns:1fr}
.path{flex-direction:column}.pnode+.pnode{margin-left:0;margin-top:20px}
.pnode+.pnode:before{content:"↓";left:50%;top:-21px;transform:translateX(-50%)}
body{font-size:16.5px}
.btn{padding:12px 18px}
}
@media (prefers-reduced-motion: reduce){
*{transition:none!important;animation:none!important;scroll-behavior:auto!important}
.js .rv{opacity:1;transform:none}
}
/* --- Illustration spots (flat SVG system) --- */
.spotil{float:right;width:190px;max-width:46%;margin:4px 0 12px 18px}
.spotil svg{width:100%;height:auto;display:block;filter:drop-shadow(0 4px 10px rgba(11,42,91,.10))}
.thero .spotil{width:150px;margin:2px 0 8px 14px}
.today .spotil{width:128px;margin:0 0 8px 14px}
.contcard .spotil{width:130px}
@media (max-width:640px){.spotil{float:none;width:150px;max-width:60%;margin:8px auto}.thero .spotil{width:120px}.today .spotil{float:right;width:96px}}
/* --- Phase 3: navigation system --- */
.htop{display:flex;align-items:center;gap:12px}
.brand{color:#fff;text-decoration:none}
.brand:hover{text-decoration:none}
.hact{margin-left:auto;display:flex;align-items:center;gap:8px}
.hicon{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;color:#fff;border:1px solid #ffffff33}
.hicon:hover{background:#ffffff22}
.contchip{background:var(--yellow);color:#231a00;font-weight:700;font-size:.88rem;border-radius:999px;padding:7px 13px;text-decoration:none;white-space:nowrap}
.contchip:hover{background:#ffc21f}
.burger{display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:10px;background:transparent;color:#fff;border:1px solid #ffffff33;cursor:pointer}
nav.main a.act{background:var(--accent);border-color:var(--accent);color:#fff}
nav.util{display:flex;gap:16px;flex-wrap:wrap;margin-top:2px;padding-bottom:2px}
nav.util a{color:#b9c9e6;text-decoration:none;font-size:.88rem;padding:2px 0}
nav.util a:hover{color:#fff;text-decoration:underline}
nav.util a.act{color:var(--yellow);font-weight:700}
.mpanel{background:var(--primary);border-top:1px solid #ffffff22;padding:14px 0 18px}
.mpcols{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px}
.mpcols h4{color:var(--yellow);margin:0 0 6px;font-size:.85rem;letter-spacing:.06em}
.mpcols a{display:block;color:#e6edf9;text-decoration:none;padding:5px 0;font-size:.98rem}
.mpcols a.act{color:#fff;font-weight:800;text-decoration:underline}
.bnav{display:none}
.totop{position:fixed;right:16px;bottom:18px;z-index:40;width:46px;height:46px;border-radius:50%;border:1px solid var(--border);background:var(--primary);color:#fff;font-size:1.25rem;cursor:pointer;box-shadow:var(--shadow-lg)}
.totop:hover{background:var(--accent)}
@media (max-width:900px){
nav.main,nav.util{display:none}
.burger{display:flex}
.bnav{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;left:0;right:0;bottom:0;z-index:50;background:var(--surface);border-top:1px solid var(--border);box-shadow:0 -4px 18px rgba(11,42,91,.10);padding:6px 2px calc(6px + env(safe-area-inset-bottom))}
.bnav a{display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--text-muted);text-decoration:none;font-size:.72rem;font-weight:600;padding:4px 0;border-radius:8px}
.bnav a svg{width:22px;height:22px}
.bnav a.act{color:var(--accent)}
body{padding-bottom:62px}
.totop{bottom:76px}
.brand{font-size:1rem}
}
/* --- Phase 4: grammar lesson template --- */
.metabar{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.metabar span{background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:5px 13px;font-size:.9rem;box-shadow:var(--shadow)}
.metabar .tag{background:var(--accent-soft);border-color:var(--accent-soft);color:var(--primary);font-weight:700}
.lvlstrip{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:12px 16px;margin:10px 0;box-shadow:var(--shadow)}
.lvlstrip .prog{margin:8px 0 4px}
.toc{display:flex;gap:7px;flex-wrap:wrap;margin:12px 0}
.toc a{background:var(--accent-soft);color:var(--primary);text-decoration:none;border-radius:999px;padding:5px 12px;font-size:.86rem;font-weight:600}
.toc a:hover{background:var(--accent);color:#fff}
.tline{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:14px 18px;margin:14px 0;box-shadow:var(--shadow)}
.tline .tk2{letter-spacing:.13em;font-size:.76rem;font-weight:800;color:var(--accent)}
h2[id]{scroll-margin-top:120px}