:root{
  --bg:#f5f7fb;
  --paper:#ffffff;
  --paper-soft:#f8fafc;
  --ink:#102033;
  --ink-2:#20354d;
  --muted:#64748b;
  --muted-2:#7c8da3;
  --line:#dbe5ef;
  --line-2:#eef3f8;
  --navy:#17283a;
  --navy-2:#233b55;
  --teal:#0f766e;
  --teal-2:#0d9488;
  --teal-soft:#e8f7f4;
  --blue:#2563eb;
  --blue-soft:#eff6ff;
  --indigo:#4f46e5;
  --indigo-soft:#eef2ff;
  --gold:#b7791f;
  --gold-soft:#fff7e6;
  --green:#15803d;
  --green-soft:#ecfdf3;
  --red:#b42318;
  --red-soft:#fff1f0;
  --orange:#c2410c;
  --orange-soft:#fff7ed;
  --purple:#7c3aed;
  --purple-soft:#f5f3ff;
  --shadow:0 1px 2px rgba(15,23,42,.06),0 8px 30px rgba(15,23,42,.07);
  --shadow-sm:0 1px 2px rgba(15,23,42,.08);
  --radius:18px;
  --radius-sm:12px;
  --font:'DM Sans',ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --font-display:'DM Serif Display',Georgia,serif;
  --focus:0 0 0 3px rgba(37,99,235,.22);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:linear-gradient(180deg,#f8fbff 0%,var(--bg) 44%,#eef4f8 100%);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
a{color:inherit}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.app{min-height:100vh}
.topbar{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:12px 22px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,var(--navy),var(--teal));color:white;display:grid;place-items:center;font-weight:800;letter-spacing:.02em;box-shadow:var(--shadow-sm)}
.brand-copy{display:flex;flex-direction:column;line-height:1.15}
.brand-title{font-weight:800;letter-spacing:-.03em;color:var(--navy);font-size:1.08rem}
.brand-subtitle{font-size:.78rem;color:var(--muted);font-weight:700}
.top-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.shell{display:flex;min-height:calc(100vh - 67px)}
.sidebar{width:286px;background:rgba(255,255,255,.85);border-right:1px solid var(--line);padding:18px;position:sticky;top:67px;height:calc(100vh - 67px);overflow:auto;flex-shrink:0}
.side-section{padding:12px 0 18px;border-bottom:1px solid var(--line-2);margin-bottom:12px}
.side-title{font-size:.74rem;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);font-weight:900;margin:0 0 10px}
.nav{display:flex;flex-direction:column;gap:6px}
.nav-btn{border:0;background:transparent;text-align:left;color:var(--ink-2);border-radius:13px;padding:11px 12px;display:flex;align-items:center;gap:10px;font-weight:800;transition:.18s ease;width:100%}
.nav-btn:hover{background:var(--paper-soft)}
.nav-btn.active{background:var(--teal-soft);color:var(--teal)}
.nav-emoji{font-size:1.1rem;width:1.25rem;text-align:center}
.main{flex:1;min-width:0;padding:28px;overflow:auto}
.container{max-width:1280px;margin:0 auto;display:flex;flex-direction:column;gap:22px}
.hero{max-width:1100px;margin:0 auto;padding:54px 24px 74px}
.hero-card{background:linear-gradient(145deg,#ffffff 0%,#f7fbff 58%,#eef7f5 100%);border:1px solid var(--line);border-radius:30px;padding:42px;box-shadow:var(--shadow);display:grid;grid-template-columns:minmax(0,1.06fr) minmax(300px,.94fr);gap:34px;align-items:center}
.eyebrow{font-size:.78rem;text-transform:uppercase;letter-spacing:.13em;color:var(--teal);font-weight:900;margin:0 0 10px}
h1,h2,h3,h4,p{margin-top:0}
h1{font-family:var(--font-display);font-size:clamp(2.4rem,5vw,4.6rem);line-height:.95;letter-spacing:-.04em;margin-bottom:18px;color:var(--navy)}
.hero p{font-size:1.13rem;color:var(--muted);max-width:64ch}
.hero-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px}
.hero-pill{background:white;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-weight:800;color:var(--ink-2);font-size:.85rem;display:flex;align-items:center;gap:7px}
.drop-card{background:white;border:2px dashed #bdd5e9;border-radius:24px;padding:26px;text-align:center;transition:.2s ease;box-shadow:var(--shadow-sm)}
.drop-card:hover{border-color:var(--teal);transform:translateY(-1px)}
.drop-icon{font-size:3.2rem;display:block;margin-bottom:6px}
.drop-card h2{font-size:1.35rem;color:var(--navy);letter-spacing:-.02em;margin-bottom:8px}
.hint{color:var(--muted);font-size:.92rem}
.micro{font-size:.78rem;color:var(--muted-2)}
.btn{border:1px solid transparent;border-radius:13px;padding:10px 15px;font-weight:900;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.18s ease;text-decoration:none;white-space:nowrap;line-height:1.15}
.btn:hover{transform:translateY(-1px)}
.btn:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:none;box-shadow:var(--focus)}
.btn-primary{background:var(--navy);color:white}
.btn-primary:hover{background:var(--navy-2)}
.btn-teal{background:var(--teal);color:white}
.btn-teal:hover{background:#0b615a}
.btn-light{background:white;color:var(--navy);border-color:var(--line)}
.btn-soft{background:var(--paper-soft);color:var(--ink-2);border-color:var(--line)}
.btn-danger{background:var(--red-soft);color:var(--red);border-color:#ffd3cf}
.btn-small{padding:7px 10px;border-radius:10px;font-size:.84rem}
.card{background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:22px}
.card.soft{background:linear-gradient(180deg,#ffffff 0%,#fbfdff 100%)}
.card-header{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:16px}
.card-title{font-family:var(--font-display);color:var(--navy);font-size:1.55rem;line-height:1.1;letter-spacing:-.025em;margin:0}
.card-subtitle{color:var(--muted);margin:7px 0 0;max-width:80ch}
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.stat{background:white;border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.stat::before{content:"";position:absolute;inset:0 auto 0 0;width:5px;background:var(--teal)}
.stat.blue::before{background:var(--blue)}
.stat.gold::before{background:var(--gold)}
.stat.red::before{background:var(--red)}
.stat.purple::before{background:var(--purple)}
.stat-label{display:flex;align-items:center;gap:7px;color:var(--muted);font-weight:900;font-size:.74rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:6px}
.stat-value{font-family:var(--font-display);font-size:2.2rem;line-height:1;color:var(--navy);letter-spacing:-.04em}
.stat-note{font-size:.84rem;color:var(--muted);margin-top:8px}
.controls{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.control{display:flex;flex-direction:column;gap:7px}
label,.label{font-size:.76rem;text-transform:uppercase;letter-spacing:.08em;font-weight:900;color:var(--muted)}
select,input[type="number"],input[type="text"],textarea{width:100%;border:1px solid var(--line);border-radius:12px;background:white;padding:10px 12px;color:var(--ink)}
.multi-box{border:1px solid var(--line);border-radius:14px;padding:10px;background:white;max-height:170px;overflow:auto}
.check-row{display:flex;align-items:center;gap:8px;margin:5px 0;font-size:.88rem;color:var(--ink-2);font-weight:700}
.check-row input{width:16px;height:16px;accent-color:var(--teal)}
.chart-wrap{height:350px;position:relative;width:100%;background:white;border:1px solid var(--line-2);border-radius:16px;padding:12px}
.chart-wrap.small{height:260px}
.chart-wrap.tall{height:430px}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:15px;background:white}
table{width:100%;border-collapse:collapse;font-size:.91rem}
th,td{padding:10px 12px;border-bottom:1px solid var(--line-2);text-align:left;vertical-align:top}
th{background:#f8fafc;color:var(--ink-2);font-size:.73rem;letter-spacing:.08em;text-transform:uppercase;font-weight:900;position:sticky;top:0;z-index:1}
tr:last-child td{border-bottom:0}
.tag{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:5px 9px;font-size:.79rem;font-weight:900;background:var(--paper-soft);border:1px solid var(--line);color:var(--ink-2);margin:2px}
.tag.green{background:var(--green-soft);color:var(--green);border-color:#bbf7d0}
.tag.gold{background:var(--gold-soft);color:var(--gold);border-color:#fde7b7}
.tag.red{background:var(--red-soft);color:var(--red);border-color:#ffd3cf}
.tag.blue{background:var(--blue-soft);color:var(--blue);border-color:#c9dcff}
.tag.teal{background:var(--teal-soft);color:var(--teal);border-color:#c4eee7}
.tag.purple{background:var(--purple-soft);color:var(--purple);border-color:#ddd6fe}
.info{display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;border:0;background:var(--blue-soft);color:var(--blue);font-weight:900;font-size:.75rem;margin-left:4px;position:relative}
.info:hover::after,.info:focus-visible::after{content:attr(data-tip);position:absolute;z-index:100;left:50%;bottom:130%;transform:translateX(-50%);width:290px;background:var(--navy);color:white;border-radius:13px;padding:12px;font-size:.82rem;font-weight:600;line-height:1.4;text-transform:none;letter-spacing:0;box-shadow:var(--shadow);text-align:left}
.analysis-picker{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.analysis-option{background:white;border:1px solid var(--line);border-radius:16px;padding:14px;display:grid;grid-template-columns:auto 1fr;gap:10px;align-items:start;transition:.18s ease}
.analysis-option:hover{border-color:#abd8d1;transform:translateY(-1px)}
.analysis-option input{width:18px;height:18px;margin-top:2px;accent-color:var(--teal)}
.analysis-title{font-weight:900;color:var(--navy);display:flex;align-items:center;gap:4px}
.analysis-desc{font-size:.84rem;color:var(--muted);margin-top:3px}
.result-card{border:1px solid var(--line);border-radius:18px;background:white;overflow:hidden;box-shadow:var(--shadow-sm)}
.result-head{padding:16px 18px;border-bottom:1px solid var(--line-2);display:flex;align-items:flex-start;justify-content:space-between;gap:12px;background:linear-gradient(180deg,#ffffff,#fbfdff)}
.result-title{font-family:var(--font-display);font-size:1.35rem;color:var(--navy);letter-spacing:-.02em;margin:0}
.result-body{padding:18px}
.translation{background:var(--teal-soft);border:1px solid #c4eee7;border-radius:15px;padding:14px;color:#0b4c47;font-weight:700}
.translation strong{color:#063b38}
.action-list{display:grid;gap:9px;margin:12px 0 0;padding:0;list-style:none}
.action-list li{background:var(--paper-soft);border:1px solid var(--line-2);border-radius:12px;padding:10px 12px}
.empty{border:1px dashed var(--line);border-radius:18px;background:rgba(255,255,255,.72);padding:24px;text-align:center;color:var(--muted)}
.heatmap{display:grid;gap:5px}
.heat-row{display:grid;grid-template-columns:180px minmax(300px,1fr);gap:8px;align-items:center}
.heat-label{font-size:.78rem;font-weight:900;color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.heat-cells{display:grid;gap:4px}
.heat-cell{min-height:30px;border-radius:8px;display:grid;place-items:center;font-size:.68rem;font-weight:900;color:rgba(16,32,51,.72);border:1px solid rgba(255,255,255,.75)}
.group-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.group-card{background:white;border:1px solid var(--line);border-radius:18px;overflow:hidden}
.group-bar{height:7px;background:var(--teal)}
.group-card.red .group-bar{background:var(--red)}
.group-card.gold .group-bar{background:var(--gold)}
.group-card.blue .group-bar{background:var(--blue)}
.group-card.green .group-bar{background:var(--green)}
.group-inner{padding:16px}
.group-title{font-weight:900;color:var(--navy);margin-bottom:6px}
.group-note{font-size:.85rem;color:var(--muted);margin-bottom:10px}
.drawer{position:fixed;inset:auto 20px 20px auto;width:min(420px,calc(100vw - 40px));background:white;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:18px;z-index:120;display:none}
.drawer.show{display:block}
.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.45);display:none;z-index:110}
.modal{position:fixed;left:50%;top:50%;transform:translate(-50%,-50%);width:min(760px,calc(100vw - 34px));max-height:86vh;overflow:auto;background:white;border-radius:22px;border:1px solid var(--line);box-shadow:var(--shadow);display:none;z-index:130}
.modal.show,.modal-backdrop.show{display:block}
.modal-head{padding:20px 22px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;align-items:center}
.modal-body{padding:22px}
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:var(--navy);color:white;border-radius:999px;padding:10px 16px;z-index:200;font-weight:900;box-shadow:var(--shadow);display:none}
.toast.show{display:block}
.quality-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.quality-item{border:1px solid var(--line);border-radius:14px;padding:13px;background:white}
.quality-item.good{border-color:#bbf7d0;background:var(--green-soft)}
.quality-item.warn{border-color:#fed7aa;background:var(--orange-soft)}
.quality-item.bad{border-color:#fecaca;background:var(--red-soft)}
.mini-title{font-weight:900;color:var(--navy);margin-bottom:4px}
.segment{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:white}
.segment-head{padding:12px 14px;background:var(--paper-soft);border-bottom:1px solid var(--line-2);font-weight:900;color:var(--navy)}
.segment-body{padding:14px}

.command-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.command-card{background:white;border:1px solid var(--line);border-radius:18px;padding:16px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.command-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--teal)}
.command-card.blue::before{background:var(--blue)}
.command-card.gold::before{background:var(--gold)}
.command-card.red::before{background:var(--red)}
.command-card.purple::before{background:var(--purple)}
.command-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);font-weight:900;margin-bottom:5px}
.command-title{font-size:1.05rem;font-weight:900;color:var(--navy);line-height:1.2;margin-bottom:6px}
.command-text{font-size:.9rem;color:var(--muted);margin:0}
.plan-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);gap:18px;align-items:start}
.plan-step{display:grid;grid-template-columns:42px minmax(0,1fr);gap:12px;padding:14px;border:1px solid var(--line);background:white;border-radius:16px;margin-bottom:10px}
.step-number{width:42px;height:42px;border-radius:14px;background:var(--teal-soft);color:var(--teal);display:grid;place-items:center;font-weight:900}
.step-title{font-weight:900;color:var(--navy);margin:0 0 4px}
.step-text{color:var(--muted);margin:0;font-size:.93rem}
.student-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.student-card{border:1px solid var(--line);background:white;border-radius:18px;padding:16px;box-shadow:var(--shadow-sm)}
.student-card h3{margin:0 0 6px;color:var(--navy);font-size:1.05rem}
.meter{height:10px;background:var(--line-2);border-radius:999px;overflow:hidden;margin:10px 0}
.meter-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--teal),var(--blue));width:0%}
.whatif-panel{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.scenario-card{border:1px solid var(--line);background:white;border-radius:18px;padding:16px;box-shadow:var(--shadow-sm)}
.scenario-value{font-family:var(--font-display);font-size:2.1rem;line-height:1;color:var(--navy);letter-spacing:-.04em}
.privacy-badge{display:inline-flex;align-items:center;gap:6px;border-radius:999px;background:var(--indigo-soft);color:var(--indigo);font-size:.78rem;font-weight:900;padding:5px 9px;border:1px solid #ddd6fe}
.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.guide-card{border:1px solid var(--line);border-radius:18px;background:white;padding:16px}
.guide-card h3{margin:0 0 8px;color:var(--navy)}


.planning-hero{background:linear-gradient(135deg,#ffffff 0%,#eefaf8 46%,#f8fbff 100%);border:1px solid var(--line);border-radius:24px;padding:22px;box-shadow:var(--shadow-sm)}
.planning-controls{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:16px}
.planner-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(340px,.95fr);gap:18px;align-items:start}
.studio-strip{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
.studio-tile{border:1px solid var(--line);border-radius:18px;background:white;padding:15px;box-shadow:var(--shadow-sm)}
.studio-tile .tile-icon{font-size:1.45rem;margin-bottom:6px}
.studio-tile h3{font-size:.98rem;margin:0 0 4px;color:var(--navy)}
.studio-tile p{font-size:.84rem;color:var(--muted);margin:0}
.lesson-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.lesson-card{border:1px solid var(--line);border-radius:20px;background:white;overflow:hidden;box-shadow:var(--shadow-sm)}
.lesson-head{padding:15px 16px;border-bottom:1px solid var(--line-2);background:linear-gradient(180deg,#ffffff,#fbfdff);display:flex;align-items:flex-start;justify-content:space-between;gap:10px}
.lesson-title{font-size:1.05rem;color:var(--navy);font-weight:900;margin:0 0 4px;line-height:1.2}
.lesson-body{padding:16px;display:grid;gap:10px}
.lesson-row{display:grid;grid-template-columns:130px minmax(0,1fr);gap:10px;align-items:start;border-bottom:1px solid var(--line-2);padding-bottom:9px}
.lesson-row:last-child{border-bottom:0;padding-bottom:0}
.lesson-label{font-size:.73rem;text-transform:uppercase;letter-spacing:.08em;font-weight:900;color:var(--muted)}
.lesson-text{font-size:.9rem;color:var(--ink-2)}
.agenda{display:grid;gap:10px}
.agenda-step{display:grid;grid-template-columns:72px minmax(0,1fr);gap:12px;border:1px solid var(--line);background:white;border-radius:16px;padding:12px}
.agenda-time{font-weight:900;color:var(--teal);font-size:.92rem}
.agenda-title{font-weight:900;color:var(--navy);margin-bottom:3px}
.copy-panel{border:1px solid var(--line);border-radius:18px;background:white;padding:14px;box-shadow:var(--shadow-sm)}
.copy-panel textarea{min-height:230px;resize:vertical;font-size:.9rem;line-height:1.45;background:#fbfdff}
.meeting-brief{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.brief-card{border:1px solid var(--line);border-radius:18px;background:white;padding:15px;box-shadow:var(--shadow-sm)}
.brief-card h3{font-size:1rem;margin:0 0 7px;color:var(--navy)}
.family-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.family-card{border:1px solid var(--line);border-radius:18px;background:white;padding:15px;box-shadow:var(--shadow-sm)}
.family-card h3{margin:0 0 6px;color:var(--navy);font-size:1.02rem}
.wizard-note{background:var(--gold-soft);border:1px solid #fde7b7;color:#7a4a0b;border-radius:15px;padding:12px;font-size:.9rem;font-weight:700}

@media(max-width:1060px){
  .hero-card{grid-template-columns:1fr}
  .stats-grid,.controls,.grid-4,.command-grid,.student-card-grid,.whatif-panel,.planning-controls,.studio-strip,.meeting-brief,.family-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .analysis-picker{grid-template-columns:repeat(2,minmax(0,1fr))}
  .group-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:1fr}
  .sidebar{width:248px}
}
@media(max-width:820px){
  .topbar{align-items:flex-start;gap:12px;flex-direction:column}
  .shell{display:block}
  .sidebar{position:static;width:100%;height:auto;border-right:0;border-bottom:1px solid var(--line)}
  .nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
  .main{padding:18px}
  .hero{padding:18px}
  .hero-card{padding:24px}
  .stats-grid,.controls,.analysis-picker,.group-grid,.grid-2,.grid-4,.quality-grid,.command-grid,.plan-grid,.planner-grid,.student-card-grid,.whatif-panel,.guide-grid,.planning-controls,.studio-strip,.lesson-grid,.meeting-brief,.family-grid{grid-template-columns:1fr}
  .heat-row{grid-template-columns:1fr}
  .top-actions{width:100%;justify-content:flex-start}
}
@media print{
  body{background:white}
  .no-print,.sidebar,.topbar,.modal,.modal-backdrop,.toast,.drawer{display:none!important}
  .shell{display:block}
  .main{padding:0}
  .card,.result-card,.stat{box-shadow:none;break-inside:avoid}
  .container{max-width:100%}
}