@font-face{font-family:Fraunces Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/fraunces-vietnamese-wght-normal-CnvboYUG.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Fraunces Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/fraunces-latin-ext-wght-normal-Ca2vKHc0.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Fraunces Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/fraunces-latin-wght-normal-ukD16Tqj.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Hanken Grotesk Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(data:font/woff2;base64,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)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Hanken Grotesk Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/hanken-grotesk-vietnamese-wght-normal-CHiFlh_0.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Hanken Grotesk Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/hanken-grotesk-latin-ext-wght-normal-Dg-wlmqe.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Hanken Grotesk Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/hanken-grotesk-latin-wght-normal-CaVRRdDk.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--ink-0:#f7f6f3;--ink-1:#fff;--ink-2:#f1f0ec;--ink-3:#e7e5df;--line:#e4e2dc;--line-2:#d4d1c9;--text-1:#21201c;--text-2:#5c5a54;--text-3:#908e86;--cobalt:#2e5fe8;--cobalt-soft:#2450d0;--cobalt-dim:#dbe4fc;--pass:#0b8a5c;--pass-dim:#ddf2e9;--fail:#d23b2e;--fail-dim:#fbe5e2;--gold:#a87514;--studio-0:#14181d;--studio-1:#1c2229;--studio-line:#2b323c;--shadow-1:0 1px 2px #1c19120d;--shadow-2:0 1px 3px #1c19120d, 0 5px 16px -8px #1c19121f;--shadow-3:0 2px 6px #1c19120f, 0 14px 36px -14px #1c191233;--serif:"Fraunces Variable", Georgia, serif;--sans:"Hanken Grotesk Variable", "Helvetica Neue", sans-serif;--r-sm:8px;--r-md:12px;--r-lg:16px}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--ink-0);color:var(--text-1);font-family:var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;font-size:15.5px;line-height:1.6}body:after{content:"";pointer-events:none;z-index:999;opacity:.022;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");position:fixed;inset:0}::selection{background:var(--cobalt-dim)}button{font:inherit;color:inherit;cursor:pointer;background:0 0;border:0}a{color:inherit;text-decoration:none}:focus-visible{outline:2px solid var(--cobalt);outline-offset:2px;border-radius:4px}.shell{grid-template-columns:248px 1fr;min-height:100%;display:grid}.side{border-right:1px solid var(--line);background:#f2f1ed;flex-direction:column;gap:18px;height:100vh;padding:20px 12px 14px;display:flex;position:sticky;top:0}.brand{font-family:var(--serif);letter-spacing:.005em;align-items:center;gap:9px;padding:4px 10px 0;font-size:22px;font-weight:580;display:flex}.brand-dot{background:var(--cobalt);width:10px;height:10px;box-shadow:0 0 0 3px var(--cobalt-dim);border-radius:50%}.nav{flex-direction:column;gap:1px;display:flex}.nav a{border-radius:var(--r-sm);color:var(--text-2);align-items:center;gap:10px;padding:6px 10px;font-size:13.5px;font-weight:500;transition:background .12s,color .12s;display:flex}.nav a svg{width:16px;height:16px;color:var(--text-3);flex:none;transition:color .12s}.nav a:hover{color:var(--text-1);background:#e9e7e1}.nav a:hover svg{color:var(--text-2)}.nav a.on{color:var(--text-1);background:#e4e2db;font-weight:600}.nav a.on svg{color:var(--text-1)}.nav-t{text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;overflow:hidden}.side-units{scrollbar-width:thin;scrollbar-color:var(--line-2) transparent;flex-direction:column;flex:1;gap:1px;min-height:0;display:flex;overflow-y:auto}.side-units .label{letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);margin:4px 10px 6px;font-size:10.5px;font-weight:650}.side-units a{border-radius:var(--r-sm);color:var(--text-2);align-items:center;gap:8px;padding:5px 10px;font-size:13px;display:flex}.side-units a:hover{color:var(--text-1);background:#e9e7e1}.side-units a.on{color:var(--text-1);background:#e4e2db;font-weight:600}.side-units .num{color:var(--text-3);font-variant-numeric:tabular-nums;opacity:.75;flex:none;width:17px;font-size:10.5px}.side-units .done{color:var(--text-3);font-variant-numeric:tabular-nums;flex:none;font-size:11px}.side-units .done.all{color:var(--pass);font-weight:650}.side-foot{border-top:1px solid var(--line);flex-direction:column;gap:8px;margin-top:auto;padding-top:10px;display:flex}.account-chip{border-radius:var(--r-md);border:1px solid var(--line);background:var(--ink-1);box-shadow:var(--shadow-1);align-items:center;gap:10px;padding:8px 10px;transition:border-color .14s,box-shadow .14s;display:flex}.account-chip:hover,.account-chip.on{border-color:var(--line-2);box-shadow:var(--shadow-2)}.account-chip .avatar{background:var(--cobalt-dim);width:26px;height:26px;color:var(--cobalt-soft);border-radius:50%;flex:none;place-items:center;font-size:12.5px;font-weight:700;display:grid}.acct-t{flex-direction:column;min-width:0;line-height:1.25;display:flex}.acct-t b{color:var(--text-1);text-overflow:ellipsis;white-space:nowrap;font-size:12.5px;font-weight:600;overflow:hidden}.acct-t em{color:var(--text-3);font-size:11px;font-style:normal}.main{width:100%;min-width:0;max-width:1080px;margin:0 auto;padding:48px 60px 90px}.hero{margin-bottom:42px}.hero h1{font-family:var(--serif);letter-spacing:-.015em;max-width:640px;font-size:clamp(34px,5vw,52px);font-weight:500;line-height:1.06}.hero h1 em{color:var(--cobalt-soft);font-style:italic}.hero p{color:var(--text-2);max-width:560px;margin-top:14px}.stat-row{flex-wrap:wrap;gap:12px;margin:30px 0 36px;display:flex}.stat-tile{background:var(--ink-1);border:1px solid var(--line);border-radius:var(--r-md);min-width:150px;box-shadow:var(--shadow-1);padding:16px 20px}.stat-tile .v{font-family:var(--serif);font-variant-numeric:tabular-nums;letter-spacing:-.01em;font-size:30px;font-weight:540}.stat-tile .k{color:var(--text-3);margin-top:2px;font-size:12.5px}.stat-tile.accent .v{color:var(--gold)}.delta{vertical-align:middle;margin-left:8px;font-size:14px;font-weight:700}.delta.up{color:var(--pass)}.delta.down{color:var(--fail)}.goal-tile-stat{align-items:center;gap:12px;display:flex}.goal-ring-n{font-family:var(--sans);fill:var(--text-1);font-size:13px;font-weight:700}.continue-tile{border-color:var(--cobalt-dim);background:linear-gradient(135deg,#f0f4fe,#fff 55%);transition:border-color .15s,box-shadow .15s,transform .15s}.continue-tile:hover{border-color:var(--cobalt);box-shadow:var(--shadow-2);transform:translateY(-1px)}.continue-tile .v.small{font-size:19px}.unit-grid{grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:14px;display:grid}.unit-card{background:var(--ink-1);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-1);flex-direction:column;gap:8px;padding:22px 24px;transition:border-color .16s,box-shadow .16s,transform .16s;display:flex;position:relative;overflow:hidden}.unit-card:hover{box-shadow:var(--shadow-2);border-color:#c3d1f9;transform:translateY(-2px)}.unit-card .icon{color:var(--ink-3);font-size:40px;font-family:var(--serif);position:absolute;top:10px;right:18px}.unit-card h3{font-family:var(--serif);letter-spacing:-.005em;font-size:21px;font-weight:560}.unit-card p{color:var(--text-2);flex:1;font-size:14px}.unit-card.locked{opacity:.8}.unit-progress{background:var(--ink-3);border-radius:2px;height:4px;margin-top:10px;overflow:hidden}.unit-progress i{background:var(--cobalt);border-radius:2px;height:100%;transition:width .4s;display:block}.unit-card .meta{color:var(--text-3);justify-content:space-between;margin-top:6px;font-size:12.5px;display:flex}.speak-banner{border:1px solid var(--cobalt-dim);border-radius:var(--r-lg);box-shadow:var(--shadow-1);background:linear-gradient(120deg,#edf2fe 0%,#fff 58%);justify-content:space-between;align-items:center;gap:20px;margin-bottom:10px;padding:22px 26px;transition:border-color .16s,box-shadow .16s,transform .16s;display:flex}.speak-banner:hover{box-shadow:var(--shadow-2);border-color:#b9c9f8;transform:translateY(-1px)}.speak-banner h3{font-family:var(--serif);margin-bottom:4px;font-size:21px;font-weight:560}.speak-banner p{color:var(--text-2);max-width:560px;font-size:14px}.speak-cta{background:var(--cobalt);color:#fff;box-shadow:var(--shadow-1);border-radius:999px;flex:none;padding:9px 20px;font-size:14px;font-weight:650}.review-banner{background:linear-gradient(120deg,#fdf0ee 0%,#fff 58%);border-color:#f3cdc7}.review-banner:hover{border-color:#e8aca3}.review-banner .speak-cta{background:var(--fail)}.crumb{color:var(--text-3);align-items:center;gap:8px;margin-bottom:18px;font-size:13px;display:inline-flex}.crumb a:hover{color:var(--text-1)}.lesson-head h1{font-family:var(--serif);letter-spacing:-.01em;font-size:38px;font-weight:520}.lesson-head .tagline{color:var(--cobalt-soft);font-family:var(--serif);margin:6px 0 24px;font-size:18px;font-style:italic}.lesson-body{max-width:660px;color:var(--text-2);flex-direction:column;gap:14px;display:flex}.lesson-body p strong{color:var(--text-1)}.lesson-body section{margin-bottom:22px}.lesson-body h2{font-family:var(--serif);color:var(--text-1);margin-bottom:8px;font-size:20px;font-weight:580}.lesson-body p+p{margin-top:10px}.chips{flex-wrap:wrap;gap:8px;margin:22px 0 34px;display:flex}.chip{background:var(--ink-1);border:1px solid var(--line);color:var(--text-2);font-variant-numeric:tabular-nums;border-radius:999px;padding:6px 14px;font-size:14px}.lesson-head-row{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:24px;margin-bottom:8px;display:flex}.lesson-progress{background:var(--ink-1);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);align-items:center;gap:14px;padding:12px 18px;display:flex}.lesson-progress .big{font-family:var(--serif);font-variant-numeric:tabular-nums;font-size:26px;font-weight:560}.lesson-progress .big i{color:var(--text-3);font-size:15px;font-style:normal}.lesson-progress .small{color:var(--text-3);font-size:12px}.lesson-cols{grid-template-columns:minmax(0,1.5fr) minmax(260px,1fr);gap:24px;margin:18px 0 8px;display:grid}@media (width<=980px){.lesson-cols{grid-template-columns:1fr}}.side-card{background:var(--ink-1);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);margin-bottom:14px;padding:18px 20px}.side-card h3{letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);margin-bottom:12px;font-size:12px;font-weight:650}.ex-chip-list{flex-direction:column;gap:4px;display:flex}.ex-chip{text-align:left;border-radius:var(--r-sm);align-items:center;gap:12px;padding:8px 10px;transition:background .12s;display:flex}.ex-chip:hover{background:var(--ink-2)}.ex-chip .play-glyph{background:var(--cobalt-dim);width:28px;height:28px;color:var(--cobalt-soft);border-radius:50%;flex:none;place-items:center;font-size:11px;display:grid}.ex-chip b{font-size:14px;font-weight:600;display:block}.ex-chip em{color:var(--text-3);font-size:12px;font-style:normal;display:block}.mistake-list{flex-direction:column;gap:10px;list-style:none;display:flex}.mistake-list li{color:var(--text-2);padding-left:20px;font-size:13.5px;position:relative}.mistake-list li:before{content:"✗";color:var(--fail);font-weight:700;position:absolute;left:0}.sect{letter-spacing:.13em;text-transform:uppercase;color:var(--text-3);margin:40px 0 14px;font-size:12px;font-weight:650}.sect-count{color:var(--text-3);letter-spacing:0;text-transform:none;font-variant-numeric:tabular-nums;margin-left:10px;font-weight:500}.ex-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:10px;display:grid}.ex-card{background:var(--ink-1);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);flex-direction:column;gap:4px;padding:14px 16px;transition:border-color .14s,box-shadow .14s;display:flex}.ex-card:hover{box-shadow:var(--shadow-2);border-color:#c3d1f9}.ex-card.done{border-color:#bfe4d4}.ex-card-head{justify-content:space-between;align-items:baseline;gap:10px;display:flex}.ex-card-head b{letter-spacing:.01em;font-weight:600}.ex-card .best,.ex-row .best,.best{font-variant-numeric:tabular-nums;color:var(--text-3);flex:none;font-size:12.5px}.ex-card .best.passed,.ex-row .best.passed{color:var(--pass)}.best.miss{color:var(--fail)}.ex-card-instruction{color:var(--text-3);-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:12.5px;display:-webkit-box;overflow:hidden}.ex-list{flex-direction:column;gap:10px;margin-top:8px;display:flex}.ex-row{background:var(--ink-1);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);align-items:center;gap:16px;padding:16px 20px;transition:border-color .14s,box-shadow .14s;display:flex}.ex-row:hover{box-shadow:var(--shadow-2);border-color:#c3d1f9}.ex-row .num{font-family:var(--serif);color:var(--text-3);font-variant-numeric:tabular-nums;width:26px;font-size:15px}.ex-row .t{flex:1}.ex-row .t b{letter-spacing:.01em;font-weight:600;display:block}.ex-row .t span{color:var(--text-3);font-size:13px}.ex-topbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;display:flex}.ex-topbar .crumb{align-items:center;margin-bottom:0}.ex-nav{gap:16px;font-size:13px;display:flex}.ex-nav a{color:var(--text-3)}.ex-nav a:hover{color:var(--text-1)}.ex-stage{text-align:center;flex-direction:column;align-items:center;padding-top:12px;display:flex}.ex-instruction{color:var(--text-2);max-width:520px;margin-top:10px;font-size:15px}.ex-display{font-family:var(--serif);letter-spacing:-.005em;margin-top:26px;font-size:clamp(30px,4.6vw,46px);font-weight:520}.ex-display strong{color:var(--cobalt-soft);font-weight:660}.ex-written{color:var(--text-3);margin-top:10px;font-size:15px}.ex-written q{color:var(--text-2);font-family:var(--serif);quotes:"“" "”";font-size:17px;font-style:italic}.written-inline{color:var(--text-3);margin-left:8px;font-size:13.5px;font-style:italic;font-weight:400}.listen-btn{color:var(--text-2);border:1px solid var(--line-2);background:var(--ink-1);box-shadow:var(--shadow-1);border-radius:999px;align-items:center;gap:8px;margin-top:14px;padding:8px 16px;font-size:14px;transition:color .14s,border-color .14s,box-shadow .14s;display:inline-flex}.listen-btn:hover{color:var(--text-1);border-color:var(--text-3);box-shadow:var(--shadow-2)}.rec-zone{background:radial-gradient(circle at 50% 36%, var(--studio-1), var(--studio-0) 78%);width:264px;height:264px;box-shadow:inset 0 1px 0 #ffffff0f, var(--shadow-3);border-radius:50%;place-items:center;margin:42px 0 16px;display:grid;position:relative}.rec-ring{border:1.5px solid var(--ring-c,var(--cobalt));opacity:.9;pointer-events:none;border-radius:50%;transition:border-color .3s;position:absolute;inset:22px}.rec-ring.r2{opacity:.38;inset:10px}.rec-ring.r3{opacity:.16;inset:-1px}.rec-btn{letter-spacing:.06em;text-transform:uppercase;color:#fff;-webkit-user-select:none;user-select:none;border-radius:50%;place-items:center;width:156px;height:156px;font-size:15px;font-weight:650;transition:background .3s,box-shadow .3s,transform .12s;display:grid;position:relative}.rec-btn:active{transform:scale(.97)}.rec-btn:disabled{cursor:default}.rec-btn.idle{background:radial-gradient(circle at 32% 28%,#6e96ff,#2e56cf 72%);box-shadow:inset 0 0 0 1px #ffffff1a,0 18px 50px -12px #2e5fe8bf}.rec-btn.recording{color:var(--studio-0);background:radial-gradient(circle at 32% 28%,#fff,#d9dee7 70%);box-shadow:inset 0 0 0 1px #ffffff40}.rec-btn.analyzing{background:var(--studio-line);color:#a9b2bf}.rec-btn.failed{background:radial-gradient(circle at 32% 28%,#ff8a7d,#c9372c 72%);box-shadow:0 18px 50px -12px #d23b2eb3}.rec-btn.passed{background:radial-gradient(circle at 32% 28%,#4fd6a4,#14875f 72%);box-shadow:0 18px 50px -12px #149b6cb3}.rec-halo{opacity:.09;transform:scale(var(--halo,1));pointer-events:none;background:#fff;border-radius:50%;transition:transform 60ms linear;position:absolute;inset:0}@keyframes ringPulse{0%{opacity:.6;transform:scale(1)}to{opacity:0;transform:scale(1.45)}}.rec-pulse{pointer-events:none;border:2px solid #fff;border-radius:50%;animation:1.6s ease-out infinite ringPulse;position:absolute;inset:54px}.rec-pulse.p2{animation-delay:.8s}.rec-hint{color:var(--text-3);min-height:20px;font-size:13.5px}.kbd-row{color:var(--text-3);justify-content:center;gap:16px;margin-top:10px;font-size:12px;display:flex}.kbd-row kbd{font-family:var(--sans);border:1px solid var(--line-2);background:var(--ink-1);color:var(--text-2);border-bottom-width:2px;border-radius:6px;margin-right:4px;padding:2px 7px;font-size:11px}.verdict{text-align:left;width:100%;max-width:680px;margin-top:30px;animation:.35s ease-out rise}.verdict.wide{max-width:820px}@keyframes rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}.verdict-head{align-items:center;gap:18px;margin-bottom:18px;display:flex;position:relative}.score-dial{flex:none;width:86px;height:86px;position:relative}.score-dial .n{font-family:var(--serif);font-variant-numeric:tabular-nums;place-items:center;font-size:26px;font-weight:580;display:grid;position:absolute;inset:0}.verdict-title{font-family:var(--serif);font-size:24px;font-weight:560}.verdict-title.ok{color:var(--pass)}.verdict-title.ko{color:var(--fail)}.verdict-sub{color:var(--text-3);margin-top:3px;font-size:13.5px}.crit{border:1px solid var(--line);background:var(--ink-1);border-radius:var(--r-md);box-shadow:var(--shadow-1);align-items:baseline;gap:14px;margin-bottom:8px;padding:14px 18px;display:flex}.crit .badge{letter-spacing:.1em;text-transform:uppercase;border-radius:999px;flex:none;padding:3px 9px;font-size:11px;font-weight:700}.crit.ok .badge{background:var(--pass-dim);color:var(--pass)}.crit.ko .badge{background:var(--fail-dim);color:var(--fail)}.crit p{color:var(--text-2);font-size:14px}.take-row{flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;display:flex}.ghost-btn{border:1px solid var(--line-2);background:var(--ink-1);color:var(--text-2);box-shadow:var(--shadow-1);border-radius:999px;padding:9px 18px;font-size:14px;transition:color .14s,border-color .14s,box-shadow .14s}.ghost-btn:hover{color:var(--text-1);border-color:var(--text-3);box-shadow:var(--shadow-2)}.ghost-btn.danger{color:var(--fail);border-color:#f3c6c0}.next-btn{background:var(--cobalt);color:#fff;box-shadow:inset 0 -2px 0 #0000001f, var(--shadow-1);border-radius:999px;padding:9px 22px;font-size:14px;font-weight:650;transition:background .14s,box-shadow .14s;display:inline-block}.next-btn:hover{background:var(--cobalt-soft);box-shadow:inset 0 -2px 0 #0000001f, var(--shadow-2)}.next-btn:disabled{opacity:.6;cursor:default}.next-btn:active,.listen-btn:active,.ghost-btn:active,.goal-chip:active,.quiz-choice:active:not(:disabled){transform:translateY(1.5px)}.contour-card{border:1px solid var(--line);background:var(--ink-1);border-radius:var(--r-md);box-shadow:var(--shadow-1);margin-top:18px;padding:18px}.contour-card h4{letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);margin-bottom:10px;font-size:12px;font-weight:650}.contour-legend{color:var(--text-3);gap:18px;margin-top:10px;font-size:12.5px;display:flex}.contour-legend i{vertical-align:middle;border-radius:2px;width:14px;height:3px;margin-right:6px;display:inline-block}.tag{letter-spacing:.08em;text-transform:uppercase;border:1px solid var(--line-2);color:var(--text-3);white-space:nowrap;background:var(--ink-1);border-radius:999px;flex:none;padding:3px 10px;font-size:11px;font-weight:650}.tag.level-1{color:var(--cobalt-soft);background:#f2f6ff;border-color:#c3d1f9}.tag.level-2{color:var(--gold);background:#fbf5e7;border-color:#e8d9b4}.tag.level-3{color:#a2418f;background:#faf0f8;border-color:#ebcfe4}.tag.net-tag{color:var(--gold);border-color:#e8d9b4}.tag.pass-tag{color:var(--pass);background:#f0faf6;border-color:#bfe4d4}.tag.fail-tag{color:var(--fail);border-color:#f3c6c0}.pro-tag{background:var(--cobalt-dim);color:var(--cobalt-soft);border-color:#0000;margin-left:8px;font-size:10.5px}.prog-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:26px;display:flex}.prog-head h1{font-family:var(--serif);letter-spacing:-.01em;font-size:36px;font-weight:520}.seg{border:1px solid var(--line-2);background:var(--ink-1);box-shadow:var(--shadow-1);border-radius:999px;display:inline-flex;overflow:hidden}.seg button{color:var(--text-3);padding:7px 16px;font-size:13.5px}.seg button.on{background:var(--text-1);color:#fff}.card{border:1px solid var(--line);background:var(--ink-1);border-radius:var(--r-lg);box-shadow:var(--shadow-1);margin-bottom:16px;padding:22px 24px}.card h3{letter-spacing:.13em;text-transform:uppercase;color:var(--text-3);margin-bottom:16px;font-size:12px;font-weight:650}.grid-2{grid-template-columns:1fr 1fr;gap:16px;display:grid}.heat-row{gap:3px;display:flex}.heat-col{flex-direction:column;gap:3px;display:flex}.heat-cell{background:var(--ink-3);border-radius:3.5px;width:13px;height:13px}.mastery-row{align-items:center;gap:14px;margin-bottom:12px;display:flex}.mastery-row .name{width:160px;color:var(--text-2);flex:none;font-size:14px}.mastery-row .bar{background:var(--ink-3);border-radius:4px;flex:1;height:14px;overflow:hidden}.mastery-row .bar i{background:var(--cobalt);border-radius:4px;height:100%;transition:width .5s;display:block}.mastery-row .val{text-align:right;font-variant-numeric:tabular-nums;width:40px;color:var(--text-2);font-size:13px}.empty-note{color:var(--text-3);padding:12px 0;font-size:14px}.axis-label{fill:var(--text-3);font-size:11.5px;font-family:var(--sans)}.tooltip{z-index:50;background:var(--ink-1);border:1px solid var(--line-2);pointer-events:none;color:var(--text-1);box-shadow:var(--shadow-3);white-space:nowrap;border-radius:8px;padding:7px 11px;font-size:12.5px;position:fixed}.speak-topic{letter-spacing:.16em;text-transform:uppercase;color:var(--cobalt-soft);font-size:11.5px;font-weight:700}.speak-q{max-width:720px}.live-transcript{border:1px dashed var(--line-2);background:var(--ink-1);border-radius:var(--r-md);width:100%;max-width:640px;color:var(--text-2);text-align:left;min-height:52px;margin-top:22px;padding:14px 18px;font-size:15px;animation:.3s ease-out rise}.dim-grid{grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:10px;margin-bottom:10px;display:grid}.dim-card{background:var(--ink-1);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow-1);padding:14px 16px}.dim-head{justify-content:space-between;align-items:baseline;margin-bottom:8px;display:flex}.dim-label{letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);font-size:12px;font-weight:700}.dim-score{font-family:var(--serif);font-variant-numeric:tabular-nums;font-size:22px;font-weight:580}.dim-card.ok .dim-score{color:var(--pass)}.dim-card.mid .dim-score{color:var(--gold)}.dim-card.ko .dim-score{color:var(--fail)}.dim-bar{background:var(--ink-3);border-radius:3px;height:5px;margin-bottom:8px;overflow:hidden}.dim-bar i{border-radius:3px;height:100%;transition:width .6s;display:block}.dim-card.ok .dim-bar i{background:var(--pass)}.dim-card.mid .dim-bar i{background:var(--gold)}.dim-card.ko .dim-bar i{background:var(--fail)}.dim-reading{color:var(--text-3);font-variant-numeric:tabular-nums;margin-bottom:6px;font-size:12px}.dim-card p{color:var(--text-2);font-size:13px}.transcript-card{border:1px solid var(--line);background:var(--ink-1);border-radius:var(--r-md);box-shadow:var(--shadow-1);margin-top:8px;padding:16px 20px}.transcript-card h4{letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);margin-bottom:8px;font-size:12px;font-weight:650}.transcript-card p{font-family:var(--serif);color:var(--text-2);font-size:16.5px;font-style:italic}.lab-intro{color:var(--text-2);max-width:640px;margin-bottom:26px;font-size:14.5px}.lab-row{cursor:pointer;-webkit-user-select:none;user-select:none}.lab-row.open{border-color:#c3d1f9;border-bottom-right-radius:0;border-bottom-left-radius:0}.lab-play{color:#fff;background:radial-gradient(circle at 32% 28%,#6e96ff,#2e56cf 72%);border-radius:50%;flex:none;place-items:center;width:42px;height:42px;font-size:15px;transition:transform .15s;display:grid;box-shadow:0 6px 18px -6px #2e5fe88c}.lab-play:hover{transform:scale(1.06)}.lab-play.playing{background:radial-gradient(circle at 32% 28%,#21262d,#14181d 70%)}.lab-score{font-variant-numeric:tabular-nums;text-align:right;flex-direction:column;flex:none;align-items:flex-end;gap:1px;width:150px;font-size:15px;font-weight:700;display:inline-flex}.lab-score.ok{color:var(--pass)}.lab-score.ko{color:var(--fail)}.lab-score.pending{color:var(--text-3);font-size:13px;font-weight:400}.lab-score em{letter-spacing:.08em;text-transform:uppercase;font-size:10.5px;font-style:normal;font-weight:600}.lab-score em.agree{color:var(--text-3)}.lab-score em.disagree{color:var(--gold)}.lab-detail{border-radius:0 0 var(--r-md) var(--r-md);background:var(--ink-2);border:1px solid #c3d1f9;border-top:0;padding:16px 20px 20px;animation:.25s ease-out rise}.quiz-card{border:1px solid var(--cobalt-dim);border-radius:var(--r-md);background:var(--ink-1);text-align:left;width:min(560px,100%);box-shadow:var(--shadow-2);margin:18px auto 6px;padding:18px 20px;animation:.25s ease-out rise}.quiz-card.solved{border-color:#bfe4d4}.quiz-label{letter-spacing:.14em;text-transform:uppercase;color:var(--cobalt-soft);margin-bottom:8px;font-size:11px;font-weight:700}.quiz-card.solved .quiz-label{color:var(--pass)}.quiz-q{font-family:var(--serif);margin-bottom:14px;font-size:18px}.quiz-choices{flex-wrap:wrap;gap:8px;display:flex}.quiz-choice{border:1px solid var(--line-2);background:var(--ink-1);box-shadow:var(--shadow-1);border-radius:999px;padding:9px 18px;font-size:15px;font-weight:600;transition:border-color .14s,transform .1s,box-shadow .14s}.quiz-choice:hover:not(:disabled){border-color:var(--cobalt);box-shadow:var(--shadow-2);transform:translateY(-1px)}.quiz-choice.ko{border-color:var(--fail-dim);background:var(--fail-dim);color:var(--text-3);box-shadow:none;text-decoration:line-through;animation:.3s shake}.quiz-choice.ok{border-color:var(--pass);background:var(--pass-dim);color:var(--pass)}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-4px)}75%{transform:translate(4px)}}.quiz-hint{color:var(--fail);margin-top:12px;font-size:13px}.quiz-rule{border-top:1px solid var(--line);color:var(--text-2);margin-top:14px;padding-top:12px;font-size:14px}.rb-head{margin:26px 0 8px}.rb-head h1{font-family:var(--serif);letter-spacing:-.01em;font-size:34px;font-weight:540}.rb-head p{color:var(--text-2);max-width:560px;margin-top:6px}.rb-section{margin-top:34px}.rb-section>h2{letter-spacing:.15em;text-transform:uppercase;color:var(--text-3);margin-bottom:14px;font-size:12px;font-weight:650}.rb-grid{grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:14px;display:grid}.rule-card{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--ink-1);box-shadow:var(--shadow-1);flex-direction:column;gap:10px;padding:18px 20px;display:flex}.rule-card h3{font-family:var(--serif);font-size:19px;font-weight:580}.rule-card>p{color:var(--text-2);font-size:13.5px}.rb-chips{flex-wrap:wrap;gap:4px 10px;display:flex}.rb-chips .ex-chip{padding:5px 8px}.rb-exceptions{border-top:1px dashed var(--line-2);padding-top:10px}.rb-exc-label{letter-spacing:.12em;text-transform:uppercase;color:var(--gold);margin-bottom:6px;font-size:11px;font-weight:700;display:block}.rb-drill{color:var(--cobalt-soft);align-self:flex-start;margin-top:auto;font-size:13px;font-weight:600}.rb-drill:hover{color:var(--cobalt)}.review-start{margin:6px 0 16px;display:inline-block}.review-grid{margin-top:4px}.nav-badge{background:var(--fail-dim);min-width:20px;height:20px;color:var(--fail);border-radius:999px;flex:none;place-items:center;margin-left:8px;padding:0 5px;font-size:11.5px;font-weight:700;display:inline-grid}.nav-badge.pro{background:var(--pass-dim);color:var(--pass)}.empty-state{text-align:center;border:1px dashed var(--line-2);border-radius:var(--r-lg);background:var(--ink-1);width:min(480px,100%);margin:48px auto;padding:40px 28px}.empty-glyph{color:var(--pass);margin-bottom:10px;font-size:30px}.empty-state h3{font-family:var(--serif);margin-bottom:8px;font-size:21px}.empty-state p{color:var(--text-2);margin-bottom:18px;font-size:14px}.prime-card{border:1px solid var(--cobalt-dim);border-radius:var(--r-lg);background:var(--ink-1);text-align:center;width:min(480px,100%);box-shadow:var(--shadow-2);margin:28px auto 10px;padding:28px 28px 24px;animation:.25s ease-out rise}.prime-glyph{color:var(--cobalt);margin-bottom:10px;font-size:30px}.prime-card h3{font-family:var(--serif);margin-bottom:8px;font-size:21px}.prime-card p{color:var(--text-2);margin-bottom:16px;font-size:14px}.prime-note{color:var(--text-3);margin-top:12px;font-size:12px}.burst{pointer-events:none;z-index:5;position:absolute;inset:0}.burst i{width:7px;height:7px;transform:rotate(var(--a)) translateY(0);border-radius:50%;animation:1.2s ease-out forwards burst-fly;position:absolute;top:50%;left:50%}@keyframes burst-fly{0%{opacity:1;transform:rotate(var(--a)) translateY(0) scale(1)}to{opacity:0;transform:rotate(var(--a)) translateY(-110px) scale(.4)}}.chip-row{flex-wrap:wrap;gap:8px;display:flex}.chip-row.center{justify-content:center}.goal-chip{border:1px solid var(--line-2);background:var(--ink-1);box-shadow:var(--shadow-1);border-radius:999px;padding:8px 16px;font-size:14px;font-weight:600;transition:border-color .14s,box-shadow .14s}.goal-chip:hover{border-color:var(--cobalt)}.goal-chip.on{border-color:var(--cobalt);background:var(--cobalt-dim);color:var(--cobalt-soft)}.settings-card{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--ink-1);width:min(640px,100%);box-shadow:var(--shadow-1);margin-bottom:14px;padding:20px 22px}.settings-card h3{font-family:var(--serif);margin-bottom:4px;font-size:19px;font-weight:580}.settings-card>p{color:var(--text-2);margin-bottom:14px;font-size:13.5px}.settings-card code{background:var(--ink-2);border-radius:4px;padding:1px 6px;font-size:12.5px}.voice-row{align-items:center;gap:10px;display:flex}.voice-row select{min-width:0;font:inherit;color:var(--text-1);background:var(--ink-1);border:1px solid var(--line-2);border-radius:var(--r-sm);flex:1;padding:9px 12px}.account-input{min-width:0;font:inherit;color:var(--text-1);background:var(--ink-1);border:1px solid var(--line-2);border-radius:var(--r-sm);flex:1;padding:10px 14px}.account-input:focus{border-color:var(--cobalt);box-shadow:0 0 0 3px var(--cobalt-dim);outline:none}.account-status{color:var(--cobalt-soft);margin-top:12px;font-size:13.5px}.paywall{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--ink-1);width:min(560px,100%);box-shadow:var(--shadow-3);margin:40px auto;padding:32px 34px}.paywall-tag{letter-spacing:.15em;text-transform:uppercase;color:var(--cobalt-soft);background:var(--cobalt-dim);border-radius:999px;margin-bottom:14px;padding:4px 12px;font-size:11px;font-weight:700;display:inline-block}.paywall h2{font-family:var(--serif);letter-spacing:-.005em;margin-bottom:14px;font-size:26px;font-weight:560}.paywall ul{margin-bottom:20px;list-style:none}.paywall li{color:var(--text-2);padding:6px 0;font-size:14.5px}.paywall li:before{content:"✓";color:var(--pass);margin-right:10px;font-weight:700}.paywall-actions{flex-wrap:wrap;align-items:center;gap:16px;display:flex}.paywall-note{color:var(--text-3);font-size:12.5px}.custom-input{width:min(640px,100%);font-family:var(--serif);text-align:center;color:var(--text-1);background:var(--ink-1);border:1px solid var(--line-2);border-radius:var(--r-md);resize:none;box-shadow:var(--shadow-1);margin:10px auto 14px;padding:16px 20px;font-size:22px;display:block}.custom-input:focus{border-color:var(--cobalt);box-shadow:0 0 0 3px var(--cobalt-dim);outline:none}.welcome{max-width:640px;margin:6vh auto 0}.welcome-bar{background:var(--ink-3);border-radius:999px;height:4px;margin-bottom:38px;overflow:hidden}.welcome-bar i{background:var(--cobalt);border-radius:999px;height:100%;transition:width .4s;display:block}.welcome-step{animation:.3s ease-out rise}.welcome-step h1{font-family:var(--serif);letter-spacing:-.01em;margin-bottom:12px;font-size:38px;font-weight:540;line-height:1.12}.welcome-step h1 em{color:var(--cobalt-soft);font-style:italic}.welcome-step>p{color:var(--text-2);max-width:520px;margin-bottom:22px}.goal-tiles{grid-template-columns:repeat(3,1fr);gap:10px;margin:14px 0 26px;display:grid}.goal-tile{border:1px solid var(--line);border-radius:var(--r-md);background:var(--ink-1);text-align:center;box-shadow:var(--shadow-1);padding:18px 14px;transition:border-color .14s,box-shadow .14s}.goal-tile:hover{border-color:var(--cobalt);box-shadow:var(--shadow-2)}.goal-tile.on{border-color:var(--cobalt);box-shadow:0 0 0 3px var(--cobalt-dim);background:#f0f4fe}.goal-tile b{margin-bottom:3px;font-size:16px;display:block}.goal-tile span{color:var(--text-3);font-size:12.5px}.welcome-actions{align-items:center;gap:18px;margin-top:18px;display:flex}.skip-link{color:var(--text-3);font-size:13.5px}.skip-link:hover{color:var(--text-1)}.inline-link{color:var(--cobalt-soft);font-weight:600}.mic-result{margin-top:18px;font-size:14.5px}.mic-result.ok{color:var(--pass)}.mic-result.warn{color:var(--gold)}.diag-row{border:1px solid var(--line);border-radius:var(--r-md);background:var(--ink-1);box-shadow:var(--shadow-1);justify-content:space-between;align-items:center;gap:16px;margin-bottom:10px;padding:16px 20px;display:flex}.diag-title{letter-spacing:.13em;text-transform:uppercase;color:var(--text-3);font-size:11px;font-weight:650}.diag-display{font-family:var(--serif);margin:2px 0;font-size:24px}.diag-say{color:var(--text-2);font-size:13px}.diag-err{color:var(--fail);margin-top:4px;font-size:12.5px}.diag-actions{flex:none;align-items:center;gap:10px;display:flex}.diag-btn{background:var(--cobalt);color:#fff;width:74px;height:44px;box-shadow:var(--shadow-1);border-radius:999px;font-size:14px;font-weight:700}.diag-btn.rec{background:var(--text-1);animation:1.2s ease-in-out infinite pulse-soft}@keyframes pulse-soft{50%{box-shadow:0 0 0 8px #21201c1f}}.diag-score{font-family:var(--serif);text-align:right;min-width:34px;font-size:22px;font-weight:600}.diag-score.ok{color:var(--pass)}.diag-score.ko{color:var(--fail)}.diag-report{border:1px solid var(--cobalt-dim);border-radius:var(--r-md);background:var(--ink-1);box-shadow:var(--shadow-2);margin-top:16px;padding:20px 22px;animation:.3s ease-out rise}.diag-report h3{font-family:var(--serif);margin-bottom:6px;font-size:20px}.diag-report p{color:var(--text-2);font-size:14px}@media (width<=900px){.grid-2,.shell{grid-template-columns:1fr}.side{flex-flow:wrap;align-items:center;height:auto;position:static}.main{padding:28px 20px 60px}.goal-tiles{grid-template-columns:1fr}}.ex-card.locked{opacity:.72}.ex-card.locked:hover{border-color:var(--cobalt-dim)}.verify-note{color:var(--text-3);margin:2px 0 6px;font-size:13.5px;font-style:italic}.verify-note.ok{font-style:normal}