:root{
 --rice:#eaf3f4;--paper:#ffffff;--ink:#143144;--muted:#627987;
 --verm:#ff6e49;--verm-dark:#e14b37;--jade:#137c80;--jade-2:#0d9b91;
 --gold:#f1b74e;--line:#d7e6e9;--soft:#dfeeee;
 --shadow:0 18px 44px rgba(11,67,79,.09);--radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:
    radial-gradient(circle at 85% 4%,rgba(159,51,44,.06),transparent 26rem),
    linear-gradient(135deg,rgba(36,72,63,.035),transparent 45%),
    var(--rice);
  color:var(--ink);
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
}
button,input,textarea,select{font:inherit}
a{color:inherit;text-decoration:none}
.shell{display:grid;grid-template-columns:250px minmax(0,1fr);min-height:100vh}
.sidebar{
  position:sticky;top:0;height:100vh;padding:28px 20px;border-right:1px solid var(--line);
  background:rgba(255,253,247,.78);backdrop-filter:blur(14px);z-index:20;display:flex;flex-direction:column
}
.brand{display:flex;align-items:center;gap:12px;padding:0 10px;margin-bottom:34px}
.brand b{display:block;font-family:Georgia,"Songti SC",serif;font-size:24px;letter-spacing:.02em}
.brand small{display:block;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.13em}
.seal{
  display:inline-grid;place-items:center;width:42px;height:42px;background:var(--verm);color:white;
  border-radius:8px;font-family:"Songti SC","SimSun",serif;font-size:25px;box-shadow:inset 0 0 0 2px rgba(255,255,255,.2)
}
.seal.big{width:68px;height:68px;font-size:38px;margin:auto}
nav{display:flex;flex-direction:column;gap:6px}
nav a{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:12px;color:#4e4a42;font-size:14px}
nav a span{font-family:"Songti SC",serif;font-size:18px;color:var(--verm)}
nav a:hover,nav a.active{background:#eee5d7;color:var(--ink)}
nav a.active{font-weight:700}
.sidebar-footer{margin-top:auto;padding:18px 10px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:4px}
.content{padding:42px clamp(22px,4vw,62px) 70px;max-width:1500px;width:100%;margin:0 auto}
.mobile-head{display:none}
.hero{display:flex;justify-content:space-between;align-items:center;gap:40px;padding:12px 0 30px;position:relative}
.hero h1,.page-head h1{font-family:Georgia,"Songti SC",serif;font-weight:500;font-size:clamp(36px,4vw,62px);line-height:1;margin:7px 0 12px}
.lead,.page-head p{color:var(--muted);font-size:16px;max-width:720px;line-height:1.65}
.eyebrow{font-size:11px;font-weight:800;letter-spacing:.16em;color:var(--verm);text-transform:uppercase}
.ink-circle{width:100px;height:100px;border:1px solid var(--gold);border-radius:50%;display:grid;place-items:center;font-family:"Songti SC",serif;font-size:52px;color:var(--jade);opacity:.85;position:relative}
.ink-circle:before{content:"";position:absolute;width:120px;height:35px;border-bottom:1px solid var(--line);transform:rotate(-12deg)}
.card,.level-card{
  background:rgba(255,253,247,.88);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)
}
.level-card{display:grid;grid-template-columns:1fr 180px 1fr;align-items:center;padding:28px 34px;margin-bottom:20px;overflow:hidden;position:relative}
.level-card:after{content:"山";position:absolute;right:-6px;bottom:-40px;font-family:"Songti SC",serif;font-size:160px;color:rgba(36,72,63,.035)}
.level-label{font-size:10px;letter-spacing:.2em;color:var(--muted);font-weight:800}
.level{font-family:Georgia,serif;font-size:64px;line-height:1;color:var(--verm);margin:6px 0}
.level-copy{font-size:13px;color:var(--muted)}
.level-meta{display:flex;flex-direction:column;align-items:flex-end;text-align:right}
.level-meta b{font-family:Georgia,serif;font-size:31px}
.level-meta span,.level-meta small{color:var(--muted);margin-top:4px}
.level-meta small{font-size:11px}
.progress-ring{--p:0;width:142px;aspect-ratio:1;border-radius:50%;display:grid;place-items:center;margin:auto;background:conic-gradient(var(--verm) calc(var(--p)*1%),#e7dfd2 0);position:relative}
.progress-ring:before{content:"";position:absolute;inset:10px;background:var(--paper);border-radius:50%}
.progress-ring>div{position:relative;display:flex;flex-direction:column;align-items:center}
.progress-ring b{font-family:Georgia,serif;font-size:28px}
.progress-ring small{font-size:10px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:20px 0}
.stat{background:#ede5d8;border:1px solid var(--line);border-radius:17px;padding:18px;display:grid;grid-template-columns:auto 1fr;gap:4px 12px;align-items:center}
.stat span{grid-row:1/3;font-family:"Songti SC",serif;font-size:35px;color:var(--jade)}
.stat b{font-family:Georgia,serif;font-size:25px}
.stat small{color:var(--muted)}
.two-col{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;margin:20px 0}
.card{padding:26px}
.section-head,.page-head,.toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px}
.page-head{margin-bottom:24px}
.page-head p{margin:8px 0 0}
.section-head h2,.card h2{font-family:Georgia,serif;font-weight:500;margin:5px 0 16px}
.text-link{color:var(--verm);font-weight:700;font-size:13px}
.skill-row{display:flex;gap:14px;align-items:center;margin:18px 0}
.skill-cn{width:38px;height:38px;display:grid;place-items:center;border-radius:11px;background:#ede5d8;color:var(--jade);font-family:"Songti SC",serif;font-size:20px}
.skill-main{flex:1}
.skill-top{display:flex;justify-content:space-between;gap:10px;font-size:12px;margin-bottom:7px}
.bar{height:7px;background:#e8e0d4;border-radius:999px;overflow:hidden}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--jade),var(--gold));border-radius:999px}
.trouble-list{display:flex;flex-direction:column}
.trouble-item{display:grid;grid-template-columns:48px 1fr auto;gap:12px;align-items:center;padding:11px 0;border-bottom:1px solid var(--line)}
.trouble-item:last-child{border-bottom:0}
.hanzi{font-family:"Songti SC","SimSun",serif;font-size:31px;color:var(--verm)}
.trouble-item small,.word-main small{display:block;color:var(--muted);margin-top:3px}
.score-pill{background:#eee5d7;padding:6px 8px;border-radius:999px;font-size:11px;font-weight:800}
.action-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}
.action-card{min-height:190px;border-radius:var(--radius);padding:28px;color:white;position:relative;overflow:hidden}
.action-card:after{content:"";position:absolute;width:160px;height:160px;border:1px solid rgba(255,255,255,.18);border-radius:50%;right:-40px;bottom:-80px}
.action-card.vermilion{background:linear-gradient(135deg,var(--verm),var(--verm-dark))}
.action-card.jade{background:linear-gradient(135deg,var(--jade-2),#18352f)}
.action-card h3{font-family:Georgia,serif;font-size:25px;margin:9px 0}
.action-card p{max-width:460px;color:rgba(255,255,255,.8);line-height:1.55}
.action-cn{font-family:"Songti SC",serif;font-size:14px;letter-spacing:.16em}
.tiny{font-size:11px;line-height:1.45}.muted{color:var(--muted)}
.btn{border:0;border-radius:12px;padding:11px 16px;font-weight:700;cursor:pointer;transition:.15s}
.btn:hover{transform:translateY(-1px)}
.btn:disabled{opacity:.6;cursor:wait}
.btn.primary{background:var(--verm);color:white}
.btn.jade{background:var(--jade);color:white}
.btn.ghost{background:#eee5d8;color:var(--ink)}
.btn.full{width:100%}
.input,textarea{
  width:100%;border:1px solid var(--line);background:var(--paper);color:var(--ink);
  border-radius:12px;padding:12px 14px;outline:none
}
.input:focus,textarea:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(189,152,84,.12)}
.error-box{background:#f9e7e4;color:#7c2721;border:1px solid #ecc8c1;padding:10px 12px;border-radius:10px;font-size:13px}
.login-bg{min-height:100vh;display:grid;place-items:center;padding:20px}
.login-card{width:min(420px,100%);background:var(--paper);border:1px solid var(--line);border-radius:26px;padding:38px;box-shadow:var(--shadow);text-align:center}
.login-card h1{font-family:Georgia,serif;font-size:38px;margin:12px 0 4px}
.login-card .input{margin:20px 0 10px}
.chat-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:20px;align-items:start}
.chat-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.messages{height:62vh;min-height:470px;overflow:auto;padding:26px;display:flex;flex-direction:column;gap:14px}
.welcome-message{text-align:center;margin:auto;color:var(--muted)}
.welcome-message .seal{margin:auto}
.bubble{display:grid;grid-template-columns:34px minmax(0,1fr);gap:10px;max-width:88%;align-items:start}
.bubble>span{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;font-family:"Songti SC",serif}
.bubble>div{padding:12px 14px;border-radius:14px;line-height:1.55;font-size:14px}
.bubble.user{margin-left:auto;grid-template-columns:minmax(0,1fr) 34px}
.bubble.user>span{grid-column:2;background:var(--verm);color:white}
.bubble.user>div{grid-column:1;grid-row:1;background:#efe5d7}
.bubble.assistant>span{background:var(--jade);color:white}
.bubble.assistant>div{background:#f6f1e8;border:1px solid var(--line)}
.correction,.explanation{margin-top:10px;padding-top:10px;border-top:1px solid var(--line)}
.correction b{display:block;color:var(--verm);margin-bottom:4px}
.explanation{color:var(--muted)}
.composer{display:grid;grid-template-columns:1fr auto;gap:10px;padding:14px;border-top:1px solid var(--line);background:#f7f1e8}
.composer textarea{resize:none}
.send-btn{background:var(--verm);color:white;border:0;border-radius:12px;padding:0 18px;font-weight:800;cursor:pointer}
.chat-settings{position:sticky;top:30px}
.setting-line{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.setting-line span{display:flex;flex-direction:column;gap:3px}
.setting-line small{color:var(--muted)}
.setting-line input{appearance:none;width:42px;height:24px;border-radius:999px;background:#d7d0c5;position:relative;cursor:pointer;transition:.2s}
.setting-line input:after{content:"";position:absolute;width:18px;height:18px;left:3px;top:3px;background:white;border-radius:50%;transition:.2s}
.setting-line input:checked{background:var(--jade)}
.setting-line input:checked:after{left:21px}
.mini-note{background:#eee7da;border-radius:14px;padding:14px;margin-top:18px;font-size:12px}
.mini-note p{color:var(--muted);line-height:1.5;margin:5px 0 0}
.learn-panel{margin-bottom:20px}
.learn-controls{display:grid;grid-template-columns:minmax(240px,1fr) 140px auto;gap:10px}
.generated-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin-top:18px}
.generated-word{border:1px solid var(--line);background:#f7f1e8;border-radius:15px;padding:16px}
.generated-word .huge{font-size:42px}
.generated-word h3{margin:4px 0}.generated-word p{margin:5px 0}
.generated-word small{color:var(--muted);line-height:1.45}
.toolbar{margin-bottom:18px}.toolbar .input:first-child{max-width:500px}.toolbar .input:last-child{max-width:220px}
.vocab-row{display:grid;grid-template-columns:58px minmax(0,1fr) minmax(180px,300px) 34px;gap:15px;align-items:center;padding:13px 4px;border-bottom:1px solid var(--line)}
.vocab-row:last-child{border-bottom:0}
.word-main{display:flex;flex-direction:column}.word-main span{font-size:13px}
.delete-word{border:0;background:transparent;font-size:24px;color:#9a9186;cursor:pointer}
.review-shell{max-width:760px;margin:40px auto}
.review-top{display:flex;justify-content:center;gap:8px;margin-bottom:16px}
.chip{border:1px solid var(--line);background:#eee5d8;border-radius:999px;padding:8px 13px;cursor:pointer}
.chip.active{background:var(--jade);color:white;border-color:var(--jade)}
.flashcard{background:var(--paper);border:1px solid var(--line);border-radius:28px;box-shadow:var(--shadow);padding:44px;text-align:center}
.review-prompt{font-family:Georgia,"Songti SC",serif;font-size:clamp(34px,6vw,64px);margin:30px 0 8px}
.review-sub{color:var(--muted);margin-bottom:28px}
#reviewForm{display:grid;grid-template-columns:1fr auto;gap:10px}
.review-input{border:0;border-bottom:2px solid var(--line);background:transparent;padding:12px;font-size:22px;outline:none;text-align:center}
.review-result{min-height:44px;padding-top:18px}.good{color:var(--jade);font-weight:800}.bad{color:var(--verm)}
.character-layout{display:grid;grid-template-columns:320px minmax(0,1fr);gap:20px}
.character-picker{max-height:760px;overflow:auto}
.char-list{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:14px}
.char-item{border:1px solid var(--line);background:#f7f1e8;border-radius:12px;padding:10px 6px;cursor:pointer}
.char-item b{display:block;font-family:"Songti SC",serif;font-size:27px;color:var(--verm)}
.char-item span{font-size:10px;color:var(--muted)}
.char-item.active{border-color:var(--gold);background:#efe5d7}
.draw-card{display:flex;flex-direction:column;align-items:center}
.character-model{display:flex;align-items:center;gap:15px;width:100%;margin-bottom:14px}
.character-model>span{font-family:"Songti SC",serif;font-size:54px;color:var(--verm)}
.character-model div{display:flex;flex-direction:column}.character-model small{color:var(--muted)}
.canvas-wrap{width:min(560px,100%);aspect-ratio:1;position:relative;background:#fffdf8;border:1px solid var(--line);touch-action:none}
#drawCanvas{position:absolute;inset:0;width:100%;height:100%;z-index:4}
.ghost-char{position:absolute;inset:0;display:grid;place-items:center;font-family:"Songti SC",serif;font-size:min(58vw,360px);color:rgba(159,51,44,.08);z-index:1;transition:.2s}
.ghost-char.hidden{opacity:0}
.guide{position:absolute;z-index:2;pointer-events:none;opacity:.4}
.guide.v{top:0;bottom:0;left:50%;border-left:1px dashed #c9bdaa}
.guide.h{left:0;right:0;top:50%;border-top:1px dashed #c9bdaa}
.guide.d1{inset:0;background:linear-gradient(45deg,transparent 49.8%,#d8cec0 50%,transparent 50.2%)}
.guide.d2{inset:0;background:linear-gradient(-45deg,transparent 49.8%,#d8cec0 50%,transparent 50.2%)}
.canvas-actions,.pron-actions{display:flex;gap:9px;margin-top:14px}
.self-grade{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:center;margin-top:20px}
.self-grade button{border:1px solid var(--line);background:#eee5d8;border-radius:999px;padding:8px 11px;cursor:pointer}
.pron-layout{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:1000px}
.field-label{display:block;font-weight:700;font-size:13px;margin-bottom:8px}
.input.large{font-size:24px;padding:16px;font-family:"Songti SC",serif}
.record-state{margin-top:14px;color:var(--muted);font-size:13px}.record-state.recording{color:var(--verm);font-weight:800}
.pron-result{text-align:center;padding:20px}.big-score{font-family:Georgia,serif;font-size:64px;color:var(--verm)}.big-score small{font-size:20px;color:var(--muted)}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.metric{background:#f4ede1;border-radius:15px;padding:16px;display:flex;flex-direction:column;gap:5px}
.metric>span{font-family:"Songti SC",serif;font-size:26px;color:var(--jade)}.metric>b{font-family:Georgia,serif;font-size:26px}.metric>small{color:var(--muted);margin-bottom:5px}
.timeline-item{display:flex;gap:13px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}
.timeline-item i{width:9px;height:9px;background:var(--gold);border-radius:50%}.timeline-item div{display:flex;flex-direction:column}.timeline-item small{color:var(--muted)}
.toast{position:fixed;right:24px;bottom:24px;background:var(--ink);color:white;padding:12px 16px;border-radius:12px;opacity:0;transform:translateY(20px);pointer-events:none;transition:.2s;z-index:100}
.toast.show{opacity:1;transform:translateY(0)}
.loading-line,.empty-state{padding:22px;color:var(--muted);text-align:center}
.wide{max-width:900px}

@media(max-width:980px){
  .shell{display:block}.sidebar{position:fixed;left:-270px;width:250px;transition:.25s;box-shadow:var(--shadow)}.sidebar.open{left:0}
  .content{padding:18px 18px 55px}.mobile-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.mobile-head .brand{margin:0;padding:0}.mobile-head .seal{width:36px;height:36px;font-size:21px}.mobile-head .brand b{font-size:20px}
  .icon-btn{border:1px solid var(--line);background:var(--paper);border-radius:10px;padding:8px 11px}
  .chat-layout,.two-col,.character-layout,.pron-layout{grid-template-columns:1fr}.chat-settings{position:static}
  .stats-grid,.metric-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:680px){
  .hero{align-items:flex-start}.ink-circle{display:none}.hero h1,.page-head h1{font-size:38px}
  .level-card{grid-template-columns:1fr 120px;padding:20px}.level-meta{grid-column:1/3;align-items:flex-start;text-align:left;margin-top:18px}.progress-ring{width:110px}
  .stats-grid{grid-template-columns:1fr 1fr}.action-grid{grid-template-columns:1fr}
  .learn-controls{grid-template-columns:1fr}.toolbar{align-items:stretch;flex-direction:column}.toolbar .input{max-width:none!important}
  .vocab-row{grid-template-columns:48px 1fr 32px}.mastery{grid-column:2/3}.delete-word{grid-column:3;grid-row:1/3}
  .messages{height:58vh;min-height:390px;padding:14px}.bubble{max-width:96%}
  .flashcard{padding:28px 18px}#reviewForm{grid-template-columns:1fr}.char-list{grid-template-columns:repeat(4,1fr)}
}


/* V2 additions */
.auth-switch{margin:18px 0 0;font-size:13px;color:var(--muted)}
.auth-switch a{color:var(--verm);font-weight:800}
.login-card .input + .input{margin-top:8px}
.account-mini{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:3px}
.account-mini small{color:var(--muted);font-size:10px;overflow:hidden;text-overflow:ellipsis}
.account-mini a{color:var(--verm);font-size:11px;font-weight:700;margin-top:5px}

.review-settings{max-width:760px;margin:0 auto 16px}
.review-mode-group{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.threshold-control{padding-top:14px;border-top:1px solid var(--line)}
.threshold-head{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:10px}
.threshold-head small{color:var(--muted)}
#masteryThreshold{width:100%;accent-color:var(--verm)}
.range-labels{display:flex;justify-content:space-between;color:var(--muted);font-size:10px;margin-top:3px}
.review-hanzi{display:block;font-family:"Songti SC",serif;font-size:64px;color:var(--verm)}
.review-prompt small{display:block;font-family:Inter,sans-serif;font-size:19px;color:var(--muted);margin-top:4px}

.vocab-actions{display:flex;gap:3px;align-items:center}
.vocab-actions button,.speaker-mini{border:0;background:#eee5d8;border-radius:9px;width:30px;height:30px;cursor:pointer}
.speaker-mini{float:right}
.tag{display:inline-block;background:#eee5d8;border-radius:999px;padding:2px 7px;font-size:9px;color:var(--muted);margin-right:3px}

.multi-chat{grid-template-columns:250px minmax(0,1fr) 290px}
.conversation-sidebar{padding:14px;max-height:76vh;overflow:auto}
.conversation-list{display:flex;flex-direction:column;gap:5px;margin-top:12px}
.conversation-item{display:grid;grid-template-columns:28px minmax(0,1fr) 24px;gap:6px;align-items:center;padding:9px;border-radius:11px}
.conversation-item:hover,.conversation-item.active{background:#eee5d8}
.conversation-item>span{font-family:"Songti SC",serif;color:var(--verm);font-size:18px}
.conversation-item div{min-width:0}
.conversation-item b{font-size:12px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.conversation-item small{font-size:9px;color:var(--muted)}
.delete-conversation{border:0;background:transparent;color:#8e867c;font-size:18px;cursor:pointer}
.chat-current-title{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:12px 14px;border-bottom:1px solid var(--line);background:#f7f1e8}
.chat-current-title b{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.metric-grid.five{grid-template-columns:repeat(5,1fr)}
.chart-wrap{width:100%;min-height:260px}
.chart-wrap canvas{width:100%;display:block}
.chart-legend{display:flex;gap:18px;color:var(--muted);font-size:11px;margin-bottom:8px}
.category-stats{display:flex;flex-direction:column;gap:14px}
.category-row{display:grid;grid-template-columns:1fr auto;gap:6px 12px}
.category-row div:first-child{display:flex;flex-direction:column}
.category-row small{color:var(--muted)}
.category-row>span{font-weight:800}
.category-row .bar{grid-column:1/3}

@media(max-width:1150px){
  .multi-chat{grid-template-columns:220px minmax(0,1fr)}
  .multi-chat .chat-settings{grid-column:1/3;position:static}
  .metric-grid.five{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:760px){
  .multi-chat{grid-template-columns:1fr}
  .multi-chat .chat-settings{grid-column:auto}
  .conversation-sidebar{max-height:240px}
  .metric-grid.five{grid-template-columns:repeat(2,1fr)}
  .threshold-head{align-items:flex-start;flex-direction:column}
}

.conversation-item{grid-template-columns:28px minmax(0,1fr) auto}
.conversation-actions{display:flex;gap:2px;align-items:center}
.rename-conversation,.delete-conversation{
  border:0;background:transparent;color:#8e867c;font-size:16px;cursor:pointer;
  width:24px;height:24px;border-radius:7px;line-height:1
}
.rename-conversation:hover,.delete-conversation:hover{background:#e2d8c9;color:var(--verm)}

/* SABAIDEE — nouvelle identité : lagon / corail / soleil */
body{background:radial-gradient(circle at 90% 2%,#ccefe9,transparent 39%),radial-gradient(circle at 8% 82%,#ffe9d8,transparent 35%),#ecf5f6;font-family:Inter,"Noto Sans Lao","Segoe UI",Arial,sans-serif}
.sidebar{background:#102f3c;border-right:0;box-shadow:12px 0 45px rgba(13,47,60,.09)}
.sidebar .brand b,.sidebar .brand small,.sidebar-footer .tiny,.sidebar-footer .muted{color:#fff}
.sidebar .brand small,.sidebar-footer .muted{opacity:.58}
.sidebar nav a{color:#b5d1d7}
.sidebar nav a span{color:#6ddac7}
.sidebar nav a:hover,.sidebar nav a.active{background:#214b58;color:#fff}
.sidebar nav a.active{box-shadow:inset 3px 0 0 #ffb967}
.sidebar-footer{border-top-color:#37606a}
.seal{background:linear-gradient(135deg,#14a4a0,#6addc3);color:#093c44;border-radius:15px;font-family:"Noto Sans Lao",Arial,sans-serif;box-shadow:0 7px 17px rgba(0,0,0,.12)}
.hero{padding:22px 0 34px}.hero h1,.page-head h1{font-family:Inter,"Segoe UI",sans-serif;font-weight:800;letter-spacing:-.052em}
.hero h1{max-width:770px}.eyebrow{color:#d76b43;letter-spacing:.12em}
.card,.level-card,.chat-card{background:#fff;border-color:#d9ebee;box-shadow:var(--shadow)}
.level-card{background:linear-gradient(112deg,#fff 15%,#e5f9f5 100%);border-radius:27px}
.level-card:after{content:"ລາວ";color:rgba(21,133,127,.075);font-family:"Noto Sans Lao",sans-serif;font-size:90px;bottom:-6px}
.level{color:#fa7652;font-weight:800}.level-meta b{color:#0a7a7e}
.stat{background:#fff;border-color:#d9ebee;box-shadow:0 7px 28px rgba(10,64,77,.045)}
.stat span,.hanzi{color:#158e8d;font-family:"Noto Sans Lao",Arial,sans-serif}
.skill-cn{color:#087e7b;background:#e5f8f4;font-family:"Noto Sans Lao",Arial,sans-serif}
.action-card.vermilion{background:linear-gradient(130deg,#ff7956,#e84f50)}
.action-card.jade{background:linear-gradient(130deg,#0d8988,#0e536d)}
.action-cn{font-family:"Noto Sans Lao",Arial,sans-serif}
.btn.primary,.send-btn{background:#fa7551;color:#fff}.btn.jade{background:#118d89}.btn.ghost{background:#e5f2f3}
.input,textarea{background:#f8fcfd;border-color:#d6e7eb}
.chat-card,.chat-settings,.conversation-sidebar{border-radius:23px}
.bubble.user>span{background:#fa7551}.bubble.assistant>span{background:#0d8887}
.bubble.user>div{background:#ffede5}.bubble.assistant>div{background:#eaf8f6}
.composer{background:#f3fbfa}.mini-note{background:#e7f6f3}.score-pill{background:#e4f5f2;color:#0a746f}
.progress-ring{background:conic-gradient(#fa7955 calc(var(--p)*1%),#dcefeb 0)}
.progress-ring:before{background:#fff}
@media(max-width:900px){.sidebar{box-shadow:none}.mobile-head{background:#102f3c;border-radius:14px;padding:11px 15px;margin-bottom:24px}.mobile-head .brand b{color:#fff}}