@import "https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@600;700;800&display=swap";:root{--color-primary:#4b0097;--color-secondary:#7b2cbf;--color-accent:#c7f603;--color-highlight:#ff4d36;--color-bg:#f7f7fb;--color-surface:#fff;--color-text-primary:#1a1a1a;--color-text-secondary:#6b6880;--font-brand:"DM Sans", sans-serif;--font-display:"Plus Jakarta Sans", sans-serif;--font-size-xs:10px;--font-size-sm:12px;--font-size-base:14px;--font-size-lg:16px;--font-size-xl:18px;--font-size-2xl:23px;--font-size-3xl:26px;--font-size-4xl:29px;--font-size-5xl:43px;--color-border:#ececf1;--color-border-alt:#dedce7;--color-border-input:#e1dfe9;--color-backdrop:#25223d66;--color-nav-item:#9693a2;--color-nav-active-bg:#f0e6ff;--color-hero-text:#dddcff;--color-hero-progress-bg:#8783ed;--color-hero-progress-text:#d9d8fb;--color-login-eyebrow:#d8b6f3;--color-login-subtext:#dfc9ef;--color-login-shape:#a765d2;--color-login-form-label:#54515f;--color-coral-bg:#fff0ed;--color-coral-text:#ef7868;--color-purple-bg:#efedff;--color-purple-text:#7169e6;--color-yellow-bg:#fff7dc;--color-yellow-text:#d49a23;--color-amber-bg:#fff7e5;--color-amber-border:#faeccb;--color-amber-text:#ad7913;--color-amber-icon:#f4bc52;--color-green-bg:#d6f2e5;--color-green-text:#319a69;--color-error-text:#d04d43;--color-error-bg:#fff0ed;--color-accent-sun:#ffda75;--color-accent-plant:#ffcd67;--color-art-circle:#a6a2f2;--color-art-window-bg:#8580ec;--color-art-window-border:#35328e;--color-art-window-bars:#4b47c0;--color-quote-bg:#fff8e8;--color-quote-text:#715a2c;--color-quote-accent:#ba8829;--color-quote-author:#b39762;--color-teacher-avatar-bg:#fde4d7;--color-teacher-avatar-text:#be7050;--color-mini-avatar-bg:#dfeaf4;--color-mini-avatar-text:#487293;--color-audio-wave:#a9a5ec;--color-close-btn-bg:#f4f3f8;--color-close-btn-text:#85818e;--color-join-btn-bg:#f4f2ff;--color-join-btn-border:#dedcf1;--color-donut-bg:#efeff7;--radius-xs:4px;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-2xl:18px;--radius-full:9999px;--shadow-modal:0 20px 80px #342d6b33;--shadow-focus:0 0 0 3px #7b2cbf18;font-family:var(--font-brand);color:var(--color-text-primary);background:var(--color-bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}.app-shell{min-height:100vh;display:flex}.sidebar{background:var(--color-surface);border-right:1px solid var(--color-border);flex-direction:column;width:248px;padding:29px 16px 20px;display:flex}.brand{font-family:var(--font-display);letter-spacing:-1px;align-items:center;gap:9px;margin-bottom:65px;padding:0 15px;font-size:24px;font-weight:800;display:flex}.brand-mark{background:var(--color-primary);width:28px;height:28px;color:var(--color-surface);border-radius:9px;place-items:center;font-size:17px;display:grid}.side-label,.eyebrow{font-size:var(--font-size-xs);letter-spacing:1.25px;color:var(--color-text-secondary);font-weight:700}.side-label{margin-bottom:14px;padding:0 15px}.nav-item{width:100%;color:var(--color-nav-item);font:500 14px var(--font-brand);text-align:left;cursor:pointer;background:0 0;border:0;border-radius:10px;align-items:center;gap:13px;margin:2px 0;padding:12px 15px;display:flex}.nav-item:hover,.nav-item.active{background:var(--color-nav-active-bg);color:var(--color-primary)}.nav-item.active{font-weight:600}.new-dot{background:var(--color-highlight);border-radius:var(--radius-full);width:6px;height:6px;margin-left:auto}.support-label{margin-top:39px}.sidebar-bottom{margin-top:auto}.streak{background:var(--color-amber-bg);border:1px solid var(--color-amber-border);border-radius:var(--radius-lg);color:var(--color-amber-text);align-items:center;gap:9px;margin:0 5px 23px;padding:13px 11px;display:flex}.streak-icon{background:var(--color-amber-icon);color:var(--color-surface);border-radius:var(--radius-md);place-items:center;width:31px;height:31px;display:grid}.streak strong,.profile strong{font-size:var(--font-size-sm);color:var(--color-text-primary);display:block}.streak span,.profile span{font-size:var(--font-size-xs);color:var(--color-text-secondary);margin-top:2px;display:block}.streak>svg{margin-left:auto}.profile{align-items:center;gap:10px;padding:0 7px;display:flex}.avatar,.mini-avatar,.teacher-avatar{border-radius:var(--radius-full);place-items:center;font-size:11px;font-weight:700;display:grid}.avatar{background:var(--color-purple-bg);color:var(--color-purple-text);width:34px;height:34px}.profile>svg{color:var(--color-text-secondary);margin-left:auto}.main-content{flex:1}.topbar{border-bottom:1px solid var(--color-border);background:var(--color-surface);justify-content:space-between;align-items:center;height:80px;padding:0 54px;display:flex}.breadcrumb{align-items:center;gap:8px;font-size:13px;font-weight:600;display:flex}.breadcrumb svg{color:var(--color-border-alt)}.breadcrumb span{color:var(--color-text-secondary);font-weight:400}.top-actions{align-items:center;gap:21px;display:flex}.icon-btn,.more-btn{color:var(--color-nav-item);cursor:pointer;background:0 0;border:0;position:relative}.notification i{background:var(--color-highlight);border-radius:var(--radius-full);border:1px solid var(--color-surface);width:6px;height:6px;position:absolute;top:0;right:1px}.mini-avatar{background:var(--color-mini-avatar-bg);width:31px;height:31px;color:var(--color-mini-avatar-text);font-size:var(--font-size-xs)}.page-content{max-width:1160px;margin:auto;padding:45px 54px 55px}.welcome-row{justify-content:space-between;align-items:end;margin-bottom:34px;display:flex}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--font-display);letter-spacing:-.7px}.welcome-row h1{font-size:var(--font-size-4xl);margin:10px 0 7px}.welcome-row h1 span{color:var(--color-accent);font-size:var(--font-size-2xl)}.subhead{color:var(--color-text-secondary);font-size:var(--font-size-base)}.outline-btn{border:1px solid var(--color-border-alt);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text-primary);font:600 12px var(--font-brand);cursor:pointer;align-items:center;gap:7px;padding:10px 14px;display:flex}.hero-grid{grid-template-columns:1.65fr 1fr;gap:19px;display:grid}.hero-card{border-radius:var(--radius-xl);background:var(--color-primary);height:276px;color:var(--color-surface);padding:31px 32px;position:relative;overflow:hidden}.hero-copy{z-index:2;position:relative}.pill{letter-spacing:1.2px;font-size:9px;font-weight:700}.pill.light{background:var(--color-secondary);border-radius:5px;padding:7px 10px}.hero-card h2{font-size:var(--font-size-3xl);margin:24px 0 8px}.hero-card p{color:var(--color-hero-text);margin-bottom:26px;font-size:13px}.primary-btn{background:var(--color-surface);color:var(--color-secondary);font:700 12px var(--font-brand);cursor:pointer;border:0;border-radius:7px;align-items:center;gap:8px;padding:11px 15px;display:flex}.primary-btn.full{background:var(--color-secondary);color:var(--color-surface);justify-content:center;width:100%}.hero-progress{color:var(--color-hero-progress-text);font-size:var(--font-size-xs);grid-template-columns:1fr auto;gap:8px;display:grid;position:absolute;bottom:21px;left:32px;right:32px}.hero-progress div{border-radius:var(--radius-xs);background:var(--color-hero-progress-bg);grid-column:1/-1;height:4px}.hero-progress i{background:var(--color-surface);border-radius:var(--radius-xs);width:50%;height:100%;display:block}.hero-art{opacity:.95;width:48%;height:100%;position:absolute;top:0;right:-10px}.sun{border-radius:var(--radius-full);background:var(--color-accent-sun);width:104px;height:104px;position:absolute;top:31px;right:61px}.art-circle{border:1.5px solid var(--color-art-circle);border-radius:var(--radius-full);position:absolute}.c1{width:265px;height:265px;top:38px;right:-57px}.c2{width:190px;height:190px;top:76px;right:-18px}.art-window{border:3px solid var(--color-art-window-border);background:var(--color-art-window-bg);border-radius:50% 50% 0 0;justify-content:center;gap:10px;width:96px;height:88px;padding-top:12px;display:flex;position:absolute;top:95px;right:62px}.art-window span{background:var(--color-art-window-bars);width:2px;height:58px}.plant{color:var(--color-accent-plant);font-size:74px;position:absolute;bottom:57px;right:18px;transform:rotate(-20deg)}.progress-card,.schedule-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:25px}.card-heading{justify-content:space-between;align-items:start;display:flex}.card-heading h3{font-size:var(--font-size-xl);margin-top:7px}.donut{border-radius:var(--radius-full);background:conic-gradient(var(--color-secondary) 0 72%, var(--color-donut-bg) 72% 100%);place-items:center;width:116px;height:116px;margin:24px auto 22px;display:grid}.donut:before{content:"";border-radius:var(--radius-full);background:var(--color-surface);width:91px;height:91px;position:absolute}.donut div{text-align:center;position:relative}.donut strong,.donut span{display:block}.donut strong{font:800 23px var(--font-display)}.donut span{color:var(--color-text-secondary);margin-top:2px;font-size:9px}.stats{border-top:1px solid var(--color-border);grid-template-columns:repeat(3,1fr);padding-top:17px;display:grid}.stats div+div{border-left:1px solid var(--color-border);padding-left:14px}.stats strong,.stats span{display:block}.stats strong{font-size:var(--font-size-base)}.stats span{font-size:var(--font-size-xs);color:var(--color-text-secondary);margin-top:4px}.section-head{justify-content:space-between;align-items:end;margin:42px 0 16px;display:flex}.section-head h2{margin-top:8px;font-size:21px}.text-btn{color:var(--color-secondary);font:600 12px var(--font-brand);cursor:pointer;background:0 0;border:0;align-items:center;gap:4px;display:flex}.activity-list{gap:12px;display:flex}.activity{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);flex:1;align-items:center;gap:12px;min-width:0;padding:16px;display:flex}.activity.done{opacity:.62}.activity-icon{border-radius:10px;flex:none;place-items:center;width:38px;height:38px;display:grid}.coral{background:var(--color-coral-bg);color:var(--color-coral-text)}.purple{background:var(--color-purple-bg);color:var(--color-purple-text)}.yellow{background:var(--color-yellow-bg);color:var(--color-yellow-text)}.activity-info{overflow:hidden}.activity-info strong{font-size:var(--font-size-sm);white-space:nowrap;text-overflow:ellipsis;display:block;overflow:hidden}.activity-info span{font-size:var(--font-size-xs);color:var(--color-text-secondary);margin-top:6px;display:block}.activity-info b{color:var(--color-border-alt);margin:0 3px;font-weight:400}.small-play{border:1px solid var(--color-border-alt);background:var(--color-surface);color:var(--color-secondary);border-radius:var(--radius-full);cursor:pointer;flex:none;place-items:center;width:29px;height:29px;margin-left:auto;display:grid}.done-check{border-radius:var(--radius-full);background:var(--color-green-bg);width:23px;height:23px;color:var(--color-green-text);place-items:center;margin-left:auto;display:grid}.bottom-grid{grid-template-columns:1fr 1.6fr;gap:18px;margin-top:35px;display:grid}.quote-card{background:var(--color-quote-bg);color:var(--color-quote-accent);border-radius:15px;gap:14px;padding:22px;display:flex}.quote-card p{font:600 13px/1.5 var(--font-display);color:var(--color-quote-text)}.quote-card span{font-size:var(--font-size-xs);color:var(--color-quote-author);margin-top:9px;display:block}.schedule-card{padding:21px 24px}.video-icon{color:var(--color-secondary);background:var(--color-purple-bg);border-radius:var(--radius-md);width:32px;height:32px;padding:7px}.schedule-line{border-top:1px solid var(--color-border);align-items:center;gap:11px;margin-top:17px;padding-top:16px;display:flex}.teacher-avatar{background:var(--color-teacher-avatar-bg);width:32px;height:32px;color:var(--color-teacher-avatar-text)}.schedule-line strong,.schedule-line span{display:block}.schedule-line strong{font-size:var(--font-size-sm)}.schedule-line span{font-size:var(--font-size-xs);color:var(--color-text-secondary);margin-top:4px}.join-btn{border:1px solid var(--color-join-btn-border);background:var(--color-join-btn-bg);color:var(--color-secondary);border-radius:var(--radius-sm);font:600 11px var(--font-brand);cursor:pointer;margin-left:auto;padding:7px 14px}.modal-backdrop{background:var(--color-backdrop);z-index:10;place-items:center;display:grid;position:fixed;inset:0}.lesson-modal{background:var(--color-surface);border-radius:var(--radius-2xl);width:min(410px,100% - 32px);box-shadow:var(--shadow-modal);padding:31px;position:relative}.close-btn{background:var(--color-close-btn-bg);color:var(--color-close-btn-text);border-radius:var(--radius-full);cursor:pointer;border:0;place-items:center;width:29px;height:29px;display:grid;position:absolute;top:19px;right:19px}.modal-icon{background:var(--color-coral-bg);width:48px;height:48px;color:var(--color-coral-text);border-radius:13px;place-items:center;margin-bottom:24px;display:grid}.lesson-modal h2{margin:9px 0;font-size:25px}.lesson-modal p{color:var(--color-nav-item);margin-bottom:22px;font-size:13px;line-height:1.5}.audio-player{background:var(--color-bg);border-radius:10px;align-items:center;gap:11px;margin-bottom:18px;padding:13px;display:flex}.audio-play{background:var(--color-secondary);color:var(--color-surface);border-radius:var(--radius-full);cursor:pointer;border:0;place-items:center;width:30px;height:30px;display:grid}.audio-wave{flex:1;align-items:center;gap:2px;height:28px;display:flex}.audio-wave i{background:var(--color-audio-wave);border-radius:2px;width:2px;display:block}.audio-player>span{color:var(--color-text-secondary);font-size:9px}.auth-loading{min-height:100vh;color:var(--color-nav-item);align-content:center;place-items:center;gap:12px;font-size:13px;display:grid}.auth-loading .brand-mark{background:var(--color-primary);width:38px;height:38px;color:var(--color-surface);border-radius:11px;place-items:center;font-weight:700;display:grid}.profile-button{cursor:pointer;text-align:left;background:0 0;border:0}.login-page{background:var(--color-surface);grid-template-columns:1.05fr 1fr;min-height:100vh;display:grid}.login-branding{background:var(--color-primary);color:var(--color-surface);padding:42px 8%;position:relative;overflow:hidden}.login-branding .brand{margin:0;padding:0}.login-branding .brand-mark{background:var(--color-accent);color:var(--color-primary)}.login-message{z-index:2;max-width:440px;margin-top:30vh;position:relative}.login-message .eyebrow{color:var(--color-login-eyebrow)}.login-message h1{font-size:var(--font-size-5xl);margin:15px 0;line-height:1.13}.login-message p{color:var(--color-login-subtext);font-size:var(--font-size-lg)}.login-shape{border:1px solid var(--color-login-shape);border-radius:var(--radius-full);opacity:.55;position:absolute}.shape-one{width:430px;height:430px;top:16%;right:-150px}.shape-two{width:280px;height:280px;top:28%;right:-35px}.login-panel{place-items:center;padding:35px;display:grid}.login-form-wrap{width:min(380px,100%)}.login-form-wrap h2{margin:12px 0 7px;font-size:28px}.login-subtitle{font-size:var(--font-size-base);color:var(--color-text-secondary);margin-bottom:30px}.login-form-wrap label{font-size:var(--font-size-sm);color:var(--color-login-form-label);margin:17px 0;font-weight:600;display:block}.input-wrap{border:1px solid var(--color-border-input);border-radius:var(--radius-md);height:46px;color:var(--color-text-secondary);align-items:center;gap:10px;margin-top:8px;padding:0 13px;display:flex}.input-wrap:focus-within{border-color:var(--color-secondary);box-shadow:var(--shadow-focus)}.input-wrap input{min-width:0;font:13px 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(width<=900px){.sidebar{width:205px}.topbar,.page-content{padding-left:28px;padding-right:28px}.hero-grid{grid-template-columns:1fr}.activity-list{flex-direction:column}.bottom-grid{grid-template-columns:1fr}}@media (width<=700px){.login-page{grid-template-columns:1fr}.login-branding{min-height:280px;padding:26px 24px}.login-message{margin-top:80px}.login-message h1{font-size:30px}.login-panel{padding:35px 24px}}@media (width<=620px){.sidebar{display:none}.topbar{height:65px}.page-content{padding:28px 18px}.welcome-row{flex-direction:column;align-items:start;gap:18px}.welcome-row h1{font-size:24px}.hero-card{height:300px}.hero-art{opacity:.5;width:55%}.activity{padding:14px}.bottom-grid{margin-top:24px}.top-actions{gap:12px}}.role-shell{background:var(--color-bg);flex-direction:column;min-height:100vh;display:flex}.role-shell-header{z-index:20;background:var(--color-surface);border-bottom:1px solid var(--color-border);align-items:center;gap:24px;height:64px;padding:0 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button:hover{background:var(--color-bg);border-color:var(--color-border-alt)}.role-shell-content{flex:1;width:100%;max-width:1080px;margin:0 auto;padding:32px 28px 48px}.role-shell-content h1{font-family:var(--font-display);font-size:var(--font-size-3xl);letter-spacing:-.5px;margin:0 0 10px;font-weight:800}.role-shell-content p{color:var(--color-text-secondary);font-size:var(--font-size-base);line-height:1.55}.role-shell-content ul{gap:12px;margin:22px 0 0;padding:0;list-style:none;display:grid}.role-shell-content li{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);font-size:var(--font-size-base);color:var(--color-text-primary);padding:16px 18px;line-height:1.5}.role-shell-content li a{color:var(--color-primary);font-weight:600;text-decoration:none}.role-shell-content li a:hover{text-decoration:underline}@media (width<=700px){.role-shell-header{gap:14px;padding:0 16px}.role-shell-header .eyebrow{display:none}.role-shell-content{padding:24px 16px 40px}}.page{max-width:880px;margin:0 auto;padding:32px 28px 48px}.page-header{margin-bottom:28px}.page-header h1{font-family:var(--font-display);font-size:var(--font-size-3xl);letter-spacing:-.5px;margin:0 0 8px;font-weight:800}.page-header p{color:var(--color-text-secondary);font-size:var(--font-size-base);max-width:60ch;margin:0;line-height:1.55}.stack{flex-direction:column;gap:20px;display:flex}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:24px}.card-title{font-family:var(--font-display);font-size:var(--font-size-lg);margin:0 0 4px;font-weight:700}.card-subtitle{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin:0 0 20px;line-height:1.5}.field{flex-direction:column;gap:6px;margin-bottom:16px;display:flex}.field:last-child{margin-bottom:0}.field-label{font-size:var(--font-size-sm);color:var(--color-text-primary);font-weight:600}.field-hint{font-size:var(--font-size-xs);color:var(--color-text-secondary)}.field input:not([type=checkbox]):not([type=radio]),.field select,.field textarea{font:400 var(--font-size-base) var(--font-brand);border-radius:var(--radius-md);border:1px solid var(--color-border-input);background:var(--color-surface);color:var(--color-text-primary);width:100%;padding:10px 12px;transition:border-color .15s,box-shadow .15s}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--color-primary);box-shadow:var(--shadow-focus);outline:none}.field textarea{resize:vertical;min-height:96px}.field-row{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;display:grid}.btn{font:600 var(--font-size-sm) var(--font-brand);border-radius:var(--radius-md);cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;gap:8px;padding:11px 20px;transition:background .15s,border-color .15s,opacity .15s,transform 50ms;display:inline-flex}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:var(--color-surface)}.btn-primary:hover:not(:disabled){background:var(--color-secondary)}.btn-secondary{background:var(--color-surface);color:var(--color-text-primary);border-color:var(--color-border-input)}.btn-secondary:hover:not(:disabled){background:var(--color-bg);border-color:var(--color-border-alt)}.btn-block{width:100%}.badge{font:700 var(--font-size-xs) var(--font-brand);letter-spacing:.4px;text-transform:uppercase;border-radius:var(--radius-full);white-space:nowrap;align-items:center;gap:6px;padding:4px 10px;display:inline-flex}.badge-purple{background:var(--color-purple-bg);color:var(--color-purple-text)}.badge-amber{background:var(--color-amber-bg);color:var(--color-amber-text)}.badge-green{background:var(--color-green-bg);color:var(--color-green-text)}.badge-coral{background:var(--color-coral-bg);color:var(--color-coral-text)}.alert{border-radius:var(--radius-md);font-size:var(--font-size-sm);align-items:flex-start;gap:10px;padding:13px 16px;line-height:1.5;display:flex}.alert-title{margin:0 0 2px;font-weight:700}.alert-error,.error{background:var(--color-error-bg);color:var(--color-error-text)}.alert-amber{background:var(--color-amber-bg);color:var(--color-amber-text)}.alert-green{background:var(--color-green-bg);color:var(--color-green-text)}.alert-purple{background:var(--color-purple-bg);color:var(--color-purple-text)}.table-wrap{border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow-x:auto}.table{border-collapse:collapse;width:100%;font-size:var(--font-size-sm)}.table th{text-align:left;font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.4px;color:var(--color-text-secondary);background:var(--color-bg);border-bottom:1px solid var(--color-border);padding:10px 14px;font-weight:700}.table td{border-bottom:1px solid var(--color-border);color:var(--color-text-primary);padding:12px 14px}.table tr:last-child td{border-bottom:none}.table code{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-xs);font-size:var(--font-size-sm);padding:2px 6px}.hint-ladder{flex-direction:column;gap:10px;display:flex}.hint-step{border-radius:var(--radius-md);background:var(--color-bg);border:1px solid var(--color-border);align-items:flex-start;gap:12px;padding:12px 14px;display:flex}.hint-step-index{border-radius:var(--radius-full);background:var(--color-purple-bg);width:24px;height:24px;color:var(--color-purple-text);font:700 var(--font-size-xs) var(--font-brand);flex:none;place-items:center;display:grid}.hint-step p{font-size:var(--font-size-base);margin:0;line-height:1.5}.hint-final{border-color:var(--color-primary);background:var(--color-purple-bg)}.chat-page{flex-direction:column;height:calc(100vh - 64px);margin:-32px -28px -48px;display:flex}.chat-header{border-bottom:1px solid var(--color-border);flex:none;justify-content:space-between;align-items:center;gap:12px;padding:20px 28px;display:flex}.chat-header-title{align-items:center;gap:10px;display:flex}.chat-header-title h1{font-family:var(--font-display);font-size:var(--font-size-xl);margin:0;font-weight:800}.chat-header-subtitle{font-size:var(--font-size-sm);color:var(--color-text-secondary);margin:2px 0 0}.chat-messages{flex-direction:column;flex:auto;gap:20px;padding:24px 28px;display:flex;overflow-y:auto}.chat-empty{text-align:center;color:var(--color-text-secondary);max-width:40ch;margin:auto}.chat-empty svg{color:var(--color-border-alt);margin-bottom:12px}.chat-exchange{flex-direction:column;gap:10px;display:flex}.chat-bubble-row{display:flex}.chat-bubble-row.from-user{justify-content:flex-end}.chat-bubble{border-radius:var(--radius-lg);max-width:68ch;font-size:var(--font-size-base);padding:12px 16px;line-height:1.55}.chat-bubble-user{background:var(--color-primary);color:var(--color-surface);border-bottom-right-radius:var(--radius-xs)}.chat-bubble-assistant{background:var(--color-surface);border:1px solid var(--color-border);border-bottom-left-radius:var(--radius-xs)}.chat-bubble-assistant.chat-bubble-final{border-color:var(--color-primary);background:var(--color-purple-bg)}.chat-bubble-meta{font-size:var(--font-size-xs);color:var(--color-text-secondary);margin:4px 2px}.chat-typing{align-items:center;gap:4px;padding:4px 2px;display:inline-flex}.chat-typing span{border-radius:var(--radius-full);background:var(--color-text-secondary);width:6px;height:6px;animation:1.2s ease-in-out infinite chat-typing-bounce}.chat-typing span:nth-child(2){animation-delay:.15s}.chat-typing span:nth-child(3){animation-delay:.3s}@keyframes chat-typing-bounce{0%,60%,to{opacity:.5;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}.chat-composer{border-top:1px solid var(--color-border);flex:none;padding:16px 28px 20px}.chat-composer-meta{gap:10px;margin-bottom:10px;display:flex}.chat-composer-meta input,.chat-composer-meta select{font:400 var(--font-size-sm) var(--font-brand);border-radius:var(--radius-sm);border:1px solid var(--color-border-input);background:var(--color-bg);color:var(--color-text-primary);padding:6px 10px}.chat-composer-row{align-items:flex-end;gap:10px;display:flex}.chat-composer-row textarea{resize:none;min-height:48px;max-height:160px;font:400 var(--font-size-base) var(--font-brand);border-radius:var(--radius-lg);border:1px solid var(--color-border-input);background:var(--color-surface);color:var(--color-text-primary);flex:auto;padding:12px 14px}.chat-composer-row textarea:focus{border-color:var(--color-primary);box-shadow:var(--shadow-focus);outline:none}.chat-send-btn{border-radius:var(--radius-full);flex:none;width:44px;height:44px;padding:0}@media (width<=700px){.chat-page{margin:-24px -16px -40px}.chat-header,.chat-messages,.chat-composer{padding-left:16px;padding-right:16px}}