:root{color-scheme:light;font-family:Inter,SF Pro Text,PingFang SC,Microsoft YaHei,system-ui,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;--primary: oklch(.42 .07 172);--primary-deep: oklch(.32 .055 172);--primary-soft: oklch(.955 .018 172);--accent: oklch(.63 .14 205);--accent-soft: oklch(.94 .025 205);--bg: oklch(1 0 0);--surface: oklch(.975 .004 353);--surface-strong: oklch(.945 .008 353);--ink: oklch(.19 .018 353);--muted: oklch(.48 .018 353);--border: oklch(.88 .01 353);--success: oklch(.56 .14 155);--success-soft: oklch(.94 .035 155);--warning: oklch(.67 .14 78);--warning-soft: oklch(.95 .04 78);--danger: oklch(.56 .2 25);--danger-soft: oklch(.95 .035 25);--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--ease-out: cubic-bezier(.16, 1, .3, 1);--shadow-lift: 0 6px 12px oklch(.19 .018 353 / .12);--shadow-popover: 0 8px 24px oklch(.19 .018 353 / .16)}*{box-sizing:border-box}html{min-width:320px;background:var(--bg)}body{margin:0;min-width:320px;min-height:100dvh;color:var(--ink);background:var(--bg)}button,input,select,textarea{font:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.48}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:2px}h1,h2,h3,p{margin-top:0}h1,h2,h3{text-wrap:balance}p{text-wrap:pretty}.app-root{min-height:100dvh}.icon-button{display:inline-grid;place-items:center;width:34px;height:34px;padding:0;border:0;border-radius:var(--radius-sm);background:transparent;color:var(--muted);transition:color .15s,background .15s,transform .15s}.icon-button:hover{color:var(--ink);background:var(--surface-strong)}.icon-button:active{transform:scale(.96)}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:9px 15px;border-radius:var(--radius-md);border:1px solid transparent;font-weight:650;font-size:14px;line-height:1;white-space:nowrap;transition:background .16s,color .16s,border-color .16s,transform .16s,box-shadow .16s}.button:active{transform:scale(.98)}.button-primary{color:#fff;background:var(--primary)}.button-primary:hover{background:var(--primary-deep)}.button-secondary{color:var(--primary-deep);background:var(--primary-soft);border-color:color-mix(in oklch,var(--primary) 26%,transparent)}.button-secondary:hover{border-color:var(--primary)}.button-ghost{color:var(--ink);background:var(--bg);border-color:var(--border)}.button-ghost:hover,.button-ghost.active{background:var(--surface);border-color:#b59da6}.button-danger{color:var(--danger);background:var(--danger-soft);border-color:color-mix(in oklch,var(--danger) 22%,transparent)}.button.full{width:100%}.page-title-row{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;margin-bottom:22px}.page-title-row h1{margin-bottom:6px;font-size:25px;line-height:1.2;letter-spacing:-.025em}.page-title-row p{max-width:70ch;margin-bottom:0;color:var(--muted);font-size:14px}.page-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}.section-heading-row{display:flex;justify-content:space-between;align-items:flex-start;gap:20px}.section-heading-row h2{margin-bottom:4px;font-size:17px}.section-heading-row p{margin-bottom:0;color:var(--muted);font-size:13px}.toast{position:fixed;right:22px;bottom:22px;z-index:80;display:flex;align-items:center;gap:9px;max-width:min(420px,calc(100vw - 32px));padding:12px 16px;border-radius:var(--radius-md);color:#fff;background:var(--ink);box-shadow:var(--shadow-popover);font-size:14px}.toast svg{color:#52cd86}.auth-loader{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:100dvh;color:var(--muted);background:#0b0406}.auth-loader>span{position:relative;display:grid;place-items:center;width:48px;height:48px;border-radius:14px;color:#fff;background:var(--primary)}.auth-loader>span i{position:absolute;inset:-10px;border:1px solid oklch(.68 .2 353 / .4);border-radius:18px;animation:corePulse 1.1s ease-out infinite}.auth-loader b{color:#c2b2b8;font-size:12px}.login-page{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(360px,.65fr);min-height:100dvh;background:var(--bg)}.login-scene{position:relative;min-height:100dvh;padding:40px 54px;color:#fff;background:#0a0205;overflow:hidden}.login-grid-lines{position:absolute;inset:0;background-image:linear-gradient(oklch(1 0 0 / .04) 1px,transparent 1px),linear-gradient(90deg,oklch(1 0 0 / .04) 1px,transparent 1px);background-size:48px 48px;-webkit-mask-image:radial-gradient(circle at 52% 54%,black,transparent 78%);mask-image:radial-gradient(circle at 52% 54%,black,transparent 78%)}.login-brand{position:relative;z-index:2;display:flex;align-items:center;gap:10px;font-size:18px;font-weight:750}.login-brand span{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--primary)}.login-copy{position:relative;z-index:2;max-width:650px;margin-top:8vh}.login-copy>span{color:#fd82ba;font-size:12px;font-weight:700}.login-copy h1{margin:16px 0 20px;font-size:clamp(42px,5.2vw,76px);line-height:1.04;letter-spacing:-.04em}.login-copy p{max-width:56ch;color:#b5a2a9;font-size:14px;line-height:1.65}.login-seat-field{position:absolute;right:6%;bottom:8%;display:grid;grid-template-columns:repeat(8,1fr);gap:8px 5px;width:min(58vw,760px);padding:26px;border:1px solid oklch(1 0 0 / .12);border-radius:14px;background:#190a11d1;transform:perspective(1100px) rotateX(8deg) rotate(-2deg);overflow:hidden}.login-seat-field>i{aspect-ratio:1.85;border:1px solid oklch(.75 .08 353 / .24);border-radius:4px;background:#3d1d2b;animation:loginSeatFlow 5s var(--ease-out) infinite;animation-delay:calc(var(--i) * 42ms)}.login-seat-field>i:nth-child(5n){border-color:#00baca80;border-color:oklch(.72 .13 205 / .5);background:#00282d;background:oklch(.25 .055 205)}.login-scan{position:absolute;left:0;right:0;top:0;height:1px;background:linear-gradient(90deg,transparent,var(--accent),white,var(--primary),transparent);box-shadow:0 0 14px #009dacb3;box-shadow:0 0 14px oklch(.63 .14 205 / .7);animation:loginScan 3.5s ease-in-out infinite}.login-podium{position:absolute;right:24%;bottom:4%;z-index:2;color:#ae97a0;font-family:monospace;font-size:12px}@keyframes loginSeatFlow{0%,86%,to{transform:translateY(0);filter:brightness(1)}92%{transform:translateY(-4px);filter:brightness(1.5)}}@keyframes loginScan{0%{transform:translateY(0);opacity:0}12%{opacity:1}82%{opacity:1}to{transform:translateY(360px);opacity:0}}.login-form{align-self:center;width:min(390px,calc(100% - 48px));margin:0 auto;padding:30px}.login-lock{display:grid;place-items:center;width:43px;height:43px;margin-bottom:20px;border-radius:12px;color:var(--primary);background:var(--primary-soft)}.login-form h2{margin-bottom:7px;font-size:23px;letter-spacing:-.02em}.login-form>p{margin-bottom:26px;color:var(--muted);font-size:12px;line-height:1.55}.login-form label{display:flex;flex-direction:column;gap:7px;margin-bottom:14px;color:var(--muted);font-size:13px;font-weight:650}.login-form input{height:43px;padding:8px 11px;border:1px solid var(--border);border-radius:8px;background:#fff}.login-form input:focus{border-color:var(--primary);outline:0;box-shadow:0 0 0 2px #d33c8a1f}.login-submit{width:100%;margin-top:6px}.login-error{margin:4px 0 10px;padding:9px 10px;border-radius:6px;color:var(--danger);background:var(--danger-soft);font-size:13px;line-height:1.4}.login-security{display:flex;align-items:center;gap:7px;margin-top:18px;color:var(--muted);font-size:12px}.login-security svg{color:var(--success)}.user-menu-wrap{position:relative}.user-button{display:flex;align-items:center;gap:6px;height:36px;padding:0 9px;border:1px solid var(--border);border-radius:8px;background:#fff;font-size:13px;font-weight:650}.user-button:hover{background:var(--surface)}.user-popover{position:absolute;top:42px;right:0;z-index:50;width:150px;padding:5px;border:1px solid var(--border);border-radius:8px;background:#fff;box-shadow:var(--shadow-popover)}.user-popover button{display:flex;align-items:center;gap:7px;width:100%;padding:8px;border:0;border-radius:5px;background:transparent;font-size:13px;text-align:left}.user-popover button:hover{background:var(--surface)}.dialog{position:relative}.dialog-close{position:absolute;top:12px;right:12px}.class-deck-page{position:relative;min-height:100dvh;overflow:hidden;background:#fff;isolation:isolate}.deck-aurora{position:absolute;inset:0;z-index:-2;overflow:hidden;pointer-events:none}.deck-aurora:before{content:"";position:absolute;inset:0;background-image:linear-gradient(oklch(.3 .03 353 / .035) 1px,transparent 1px),linear-gradient(90deg,oklch(.3 .03 353 / .035) 1px,transparent 1px);background-size:42px 42px;-webkit-mask-image:linear-gradient(to bottom,black,transparent 72%);mask-image:linear-gradient(to bottom,black,transparent 72%)}.deck-aurora i{position:absolute;width:460px;height:460px;border-radius:50%;filter:blur(88px);opacity:.12}.deck-aurora i:nth-child(1){top:-230px;right:3%;background:var(--primary)}.deck-aurora i:nth-child(2){top:130px;left:-280px;background:var(--accent)}.deck-aurora i:nth-child(3){top:390px;right:-300px;width:600px;height:600px;background:var(--primary);opacity:.07}.deck-header{display:flex;align-items:center;justify-content:space-between;width:min(1240px,calc(100% - 48px));height:78px;margin:0 auto;border-bottom:1px solid var(--border)}.brand-mark{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:760;letter-spacing:-.02em}.brand-core{display:grid;place-items:center;width:34px;height:34px;color:#fff;background:var(--primary);border-radius:var(--radius-md);transform:rotate(-4deg)}.deck-actions{display:flex;gap:8px}.deck-intro{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:74px;width:min(1180px,calc(100% - 48px));min-height:475px;margin:0 auto;padding:58px 0 48px}.deck-kicker{margin-bottom:20px;color:var(--primary);font-size:13px;font-weight:720;letter-spacing:.02em}.deck-intro h1{max-width:690px;margin-bottom:22px;font-size:clamp(42px,4.8vw,60px);line-height:1.03;letter-spacing:-.038em}.deck-intro h1 span{display:inline-block;color:var(--primary)}.deck-intro p:not(.deck-kicker){max-width:58ch;margin-bottom:0;color:var(--muted);font-size:16px;line-height:1.7}.floating-classroom{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:14px 12px;padding:58px 38px 50px;min-height:360px;border-radius:16px;background:#13070c;transform:perspective(900px) rotateY(-7deg) rotateX(5deg);box-shadow:0 20px 50px #29121c2e}.floating-classroom:before{content:"";position:absolute;inset:0;border-radius:inherit;background:radial-gradient(circle at 52% 46%,oklch(.6 .2 353 / .16),transparent 54%)}.floating-classroom>i{position:relative;z-index:1;height:38px;border:1px solid oklch(.85 .02 353 / .18);border-radius:var(--radius-sm);background:#2d1c23;animation:seatPulse 4.2s var(--ease-out) infinite;animation-delay:calc(var(--i) * 80ms)}.floating-classroom>i:nth-of-type(3n){border-color:#ef57a38f;background:#472333}.floating-classroom>i:nth-of-type(5n){border-color:#00b3c280;border-color:oklch(.7 .13 205 / .5)}.floating-board,.floating-podium{position:absolute;left:50%;z-index:2;transform:translate(-50%);color:#e9d9df;font-size:13px;letter-spacing:.03em}.floating-board{top:19px;width:48%;padding:8px;border:1px solid oklch(.8 .03 353 / .22);border-radius:5px;text-align:center}.floating-podium{bottom:14px;width:32%;padding:7px;border-radius:5px;background:#301e25;text-align:center}@keyframes seatPulse{0%,80%,to{transform:translateY(0)}88%{transform:translateY(-3px)}}.class-list-section{width:min(1180px,calc(100% - 48px));margin:0 auto;padding:16px 0 80px}.class-list-section>.section-heading-row{padding-bottom:18px;border-bottom:1px solid var(--border)}.class-list-section>.section-heading-row span{align-self:center}.privacy-note{padding:6px 9px;border-radius:var(--radius-sm);color:#0e5f36;background:var(--success-soft);font-size:12px;font-weight:650}.class-card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px;padding-top:20px}.class-card{position:relative;display:flex;flex-direction:column;min-height:320px;padding:18px;border:1px solid var(--border);border-radius:var(--radius-lg);background:#fffffff2;transform-style:preserve-3d;transition:border-color .18s,box-shadow .18s}.class-card:hover{border-color:#bf98a7;box-shadow:var(--shadow-lift)}.class-card-top{display:flex;justify-content:space-between}.class-icon{display:grid;place-items:center;width:42px;height:42px;border-radius:var(--radius-md);color:var(--primary);background:var(--primary-soft)}.menu-wrap{position:relative}.context-menu{position:absolute;top:38px;right:0;z-index:20;width:182px;padding:6px;border:1px solid var(--border);border-radius:var(--radius-md);background:var(--bg);box-shadow:var(--shadow-popover)}.context-menu button{display:flex;align-items:center;gap:7px;width:100%;padding:9px 10px;border:0;border-radius:var(--radius-sm);background:transparent;text-align:left;font-size:13px}.context-menu button:hover{background:var(--surface)}.context-menu .danger-text{color:var(--danger)}.class-card-copy{margin-top:18px}.class-card-copy h3{margin-bottom:5px;font-size:20px;letter-spacing:-.02em}.class-card-copy p{margin-bottom:0;color:var(--muted);font-size:12px}.class-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin:18px 0 15px;background:var(--border)}.class-metrics span{display:flex;flex-direction:column;padding:8px 7px;background:#fff;color:var(--muted);font-size:13px}.class-metrics b{color:var(--ink);font-size:15px;font-variant-numeric:tabular-nums}.mini-seat-map,.plan-mini-map{display:grid;grid-template-columns:repeat(8,1fr);gap:3px;padding:10px 12px;border-radius:var(--radius-sm);background:var(--surface)}.mini-seat-map i,.plan-mini-map i{aspect-ratio:1.55;border-radius:2px;background:var(--surface-strong)}.mini-seat-map i.occupied,.plan-mini-map i.occupied{background:color-mix(in oklch,var(--primary) 72%,white)}.open-class{display:flex;justify-content:space-between;align-items:center;width:100%;margin-top:auto;padding:13px 0 0;border:0;background:transparent;color:var(--primary-deep);font-weight:700}.dialog-backdrop{position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding:20px;background:#0d05088c}.dialog{width:min(430px,100%);padding:24px;border:0;border-radius:var(--radius-lg);background:#fff;box-shadow:var(--shadow-popover)}.dialog-icon{display:grid;place-items:center;width:40px;height:40px;margin-bottom:18px;border-radius:var(--radius-md);color:var(--primary);background:var(--primary-soft)}.dialog h2{margin-bottom:7px;font-size:21px}.dialog>p{margin-bottom:22px;color:var(--muted);font-size:13px;line-height:1.55}.dialog label,.layout-tools label,.layout-inspector label{display:flex;flex-direction:column;gap:7px;margin-bottom:13px;color:var(--muted);font-size:12px;font-weight:650}.dialog input,.layout-tools input,.layout-inspector input{width:100%;min-height:40px;padding:8px 10px;border:1px solid var(--border);border-radius:8px;background:#fff;color:var(--ink)}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:22px}.workspace-shell{min-height:100dvh;background:var(--bg)}.workspace-header{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;height:64px;padding:0 24px;border-bottom:1px solid var(--border);background:#fffffff0;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.workspace-brand-group{display:flex;align-items:center;gap:10px}.workspace-logo{display:grid;place-items:center;width:34px;height:34px;border-radius:var(--radius-md);color:#fff;background:var(--primary)}.workspace-brand-group>div{display:flex;flex-direction:column}.workspace-brand-group strong{font-size:14px}.workspace-brand-group small{color:var(--muted);font-size:13px}.workspace-controls{display:flex;align-items:center;gap:15px}.compact-select{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:12px}.compact-select select{padding:5px 26px 5px 8px;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg)}.saved-state{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:13px}.saved-state i,.saved-dot i{width:7px;height:7px;border-radius:50%;background:var(--success)}.workspace-nav{position:sticky;top:64px;z-index:35;display:flex;align-items:stretch;gap:4px;height:50px;padding:0 24px;border-bottom:1px solid var(--border);background:#fffffff2;overflow-x:auto;scrollbar-width:none}.workspace-nav button{position:relative;display:flex;align-items:center;gap:7px;padding:0 14px;border:0;background:transparent;color:var(--muted);font-size:13px;font-weight:600;white-space:nowrap}.workspace-nav button:after{content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:2px;border-radius:2px 2px 0 0;background:var(--primary);transform:scaleX(0);transition:transform .18s var(--ease-out)}.workspace-nav button:hover{color:var(--ink)}.workspace-nav button.active{color:var(--primary-deep)}.workspace-nav button.active:after{transform:scaleX(1)}.workspace-content{padding:24px}.panel-page{width:min(1500px,100%);margin:0 auto}.panel-skeleton{display:grid;grid-template-columns:1.2fr .8fr;gap:14px;width:min(1320px,100%);min-height:420px;margin:0 auto}.panel-skeleton i{border-radius:var(--radius-lg);background:linear-gradient(100deg,var(--surface) 10%,var(--surface-strong) 30%,var(--surface) 50%);background-size:220% 100%;animation:skeletonMove 1.1s ease-in-out infinite}.panel-skeleton i:first-child{grid-row:span 3}@keyframes skeletonMove{to{background-position-x:-220%}}.overview-page{width:min(1320px,100%);margin:0 auto}.overview-hero{display:grid;grid-template-columns:.9fr 1.1fr;gap:54px;min-height:430px;padding:42px 40px;border-radius:var(--radius-lg);background:var(--surface);overflow:hidden}.overview-copy{align-self:center}.status-chip{display:inline-flex;align-items:center;gap:7px;margin-bottom:22px;padding:6px 9px;border-radius:var(--radius-sm);color:#00572e;color:oklch(.4 .11 155);background:var(--success-soft);font-size:13px;font-weight:700}.status-chip i{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 0 4px #008b4e1f;box-shadow:0 0 0 4px oklch(.56 .14 155 / .12)}.overview-copy h1{margin-bottom:18px;font-size:clamp(32px,3.45vw,46px);line-height:1.08;letter-spacing:-.035em}.overview-copy h1 span{display:inline-block}.overview-copy>p{max-width:56ch;color:var(--muted);font-size:15px;line-height:1.7}.hero-actions{display:flex;gap:9px;margin-top:25px}.button-generate{position:relative;overflow:hidden;box-shadow:0 0 0 1px #d33c8a2e}.button-generate:after{content:"";position:absolute;inset:-2px;background:linear-gradient(100deg,transparent 20%,oklch(1 0 0 / .28) 45%,transparent 70%);transform:translate(-120%);transition:transform .55s var(--ease-out)}.button-generate:hover:after{transform:translate(120%)}.overview-stage{position:relative;align-self:center;min-height:330px;padding:58px 34px 48px;border-radius:var(--radius-lg);background:#180b10;overflow:hidden}.overview-stage:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 42%,oklch(.6 .2 353 / .14),transparent 58%)}.overview-board,.overview-podium{position:absolute;left:50%;z-index:2;transform:translate(-50%);border-radius:4px;text-align:center;font-size:13px}.overview-board{top:18px;width:48%;padding:7px;border:1px solid oklch(.85 .03 353 / .18);color:#dcccd2}.overview-board span{margin-left:12px;color:#00bfcf;color:oklch(.73 .15 205)}.overview-podium{bottom:14px;width:28%;padding:6px;color:#d6c5cb;background:#2d1c23}.overview-seat-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(8,1fr);gap:11px 7px}.overview-seat-grid i{aspect-ratio:1.45;border-radius:4px;border:1px solid oklch(.8 .03 353 / .16);background:#2b1920}.overview-seat-grid i.occupied{border-color:#ef67a88c;background:#5c2941}.stage-orbit{position:absolute;z-index:1;border:1px solid oklch(.7 .16 353 / .18);border-radius:50%;animation:orbit 9s linear infinite}.orbit-one{top:30%;left:27%;width:210px;height:110px}.orbit-two{right:12%;bottom:20%;width:120px;height:180px;animation-direction:reverse}@keyframes orbit{to{transform:rotate(360deg)}}.overview-metrics-line{display:grid;grid-template-columns:repeat(3,1fr);margin-top:18px;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}.overview-metrics-line>div{display:grid;grid-template-columns:auto 1fr;gap:2px 10px;align-items:center;padding:20px 24px;border-right:1px solid var(--border)}.overview-metrics-line>div:last-child{border-right:0}.overview-metrics-line svg{grid-row:span 2;color:var(--primary)}.overview-metrics-line span{font-size:13px}.overview-metrics-line b{margin-right:4px;font-size:20px;font-variant-numeric:tabular-nums}.overview-metrics-line small{color:var(--muted);font-size:13px}.overview-lower{display:grid;grid-template-columns:1.25fr .75fr;gap:18px;margin-top:18px}.readiness-panel,.strategy-stack-panel{padding:20px;border:1px solid var(--border);border-radius:var(--radius-lg)}.readiness-list{margin-top:16px;border-top:1px solid var(--border)}.readiness-list button{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;width:100%;padding:14px 4px;border:0;border-bottom:1px solid var(--border);background:transparent;text-align:left}.readiness-list button:last-child{border-bottom:0}.readiness-list button:hover{color:var(--primary-deep)}.readiness-list 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