:root{
  --bg:#f6f7fb;--card:#fff;--text:#111827;--muted:#6b7280;--line:#e5e7eb;
  --primary:#111827;--success:#0f9d58;--danger:#d93025;--warn:#d97706;--soft:#eef2ff;
  --radius:20px;--shadow:0 10px 30px rgba(17,24,39,.08)
}
*{box-sizing:border-box} body{margin:0;background:var(--bg);font-family:Tahoma,Arial,sans-serif;color:var(--text)}
button,input,select,textarea{font:inherit} button{cursor:pointer}
.app-shell{max-width:1180px;margin:auto;padding:18px}.topbar{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-bottom:18px;flex-wrap:wrap}
.brand{display:flex;gap:10px;align-items:center}.brand-badge{width:44px;height:44px;border-radius:14px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:700}.brand h1{font-size:20px;margin:0}.muted{color:var(--muted)}
.btn{border:0;border-radius:12px;padding:10px 14px;background:#fff;border:1px solid var(--line)}.btn.primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn.success{background:var(--success);color:#fff;border-color:var(--success)}.btn.danger{background:var(--danger);color:#fff;border-color:var(--danger)}.btn.warn{background:var(--warn);color:#fff;border-color:var(--warn)}.btn.small{padding:7px 10px;font-size:13px}
.grid{display:grid;gap:14px}.grid.cols-3{grid-template-columns:repeat(3,1fr)}.grid.cols-2{grid-template-columns:repeat(2,1fr)}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.kpi{display:flex;align-items:center;justify-content:space-between}.kpi .value{font-size:28px;font-weight:800}.kpi .label{color:var(--muted);font-size:13px}.pill{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:6px 10px;font-size:12px;background:#f3f4f6}.pill.success{background:#e7f7ee;color:#08763f}.pill.warn{background:#fff4df;color:#9a5b00}.pill.danger{background:#fdebea;color:#a91d15}.pill.info{background:#eef2ff;color:#3344aa}
.section-title{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:0 0 12px}.section-title h2{margin:0;font-size:18px}.list{display:flex;flex-direction:column;gap:10px}.item{border:1px solid var(--line);border-radius:15px;padding:12px;background:#fff;display:flex;justify-content:space-between;gap:12px;align-items:center}.item-main{min-width:0}.item-title{font-weight:700}.item-sub{font-size:12px;color:var(--muted);margin-top:4px}.actions{display:flex;gap:7px;flex-wrap:wrap}.progress{height:10px;background:#eceef2;border-radius:999px;overflow:hidden}.progress > span{display:block;height:100%;background:var(--primary);border-radius:999px}.student-card .head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.avatar{width:44px;height:44px;border-radius:14px;background:var(--soft);display:grid;place-items:center;font-weight:800}.score{font-size:20px;font-weight:800}
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:20px}.login-card{width:min(520px,100%);background:#fff;border:1px solid var(--line);border-radius:24px;padding:24px;box-shadow:var(--shadow)}.role-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:16px 0}.role{border:1px solid var(--line);border-radius:16px;padding:14px;background:#fff;text-align:center}.role.active{border-color:var(--primary);background:#f9fafb}.field{display:flex;flex-direction:column;gap:6px;margin:10px 0}.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:12px;padding:11px;background:#fff}.nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.nav button.active{background:var(--primary);color:#fff}.notice{border-radius:16px;padding:12px 14px;background:#fff8e6;border:1px solid #f7d999;font-size:13px}.empty{padding:24px;text-align:center;color:var(--muted)}
.toast{position:fixed;bottom:20px;left:20px;background:#111827;color:#fff;padding:12px 16px;border-radius:14px;box-shadow:var(--shadow);opacity:0;transform:translateY(10px);transition:.2s;pointer-events:none;z-index:30}.toast.show{opacity:1;transform:translateY(0)}
.modal{position:fixed;inset:0;background:rgba(17,24,39,.55);display:grid;place-items:center;padding:18px;z-index:50}.modal.hidden{display:none}.modal-box{width:min(620px,100%);max-height:88vh;overflow:auto;background:#fff;border-radius:24px;padding:20px}.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.congrats{text-align:center;padding:20px}.congrats .big{font-size:54px}.share-card{background:linear-gradient(135deg,#111827,#374151);color:#fff;border-radius:22px;padding:22px}.share-card h3{margin-top:0}.share-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.share-stat{background:rgba(255,255,255,.1);border-radius:14px;padding:10px;text-align:center}
.table{width:100%;border-collapse:collapse;font-size:13px}.table th,.table td{border-bottom:1px solid var(--line);padding:10px;text-align:right}.tag{font-size:11px;padding:4px 7px;border-radius:999px;background:#f3f4f6}.footer-note{font-size:12px;color:var(--muted);margin-top:14px}
@media(max-width:800px){.grid.cols-3,.grid.cols-2{grid-template-columns:1fr}.role-grid{grid-template-columns:1fr 1fr}.item{align-items:flex-start;flex-direction:column}.actions{width:100%}.actions .btn{flex:1}.share-stats{grid-template-columns:1fr}.topbar{align-items:flex-start}}

/* V5 — family focus, phone status, rewards and certificates */
.tasks-focus{border:2px solid var(--line,#e5e7eb)}
.task-row{padding:15px 14px}
.phone-state{display:flex;align-items:center;gap:12px;padding:14px;border-radius:16px;border:1px solid #e5e7eb;background:#fff}
.phone-state.success{background:#ecfdf5;border-color:#a7f3d0}.phone-state.danger{background:#fef2f2;border-color:#fecaca}.phone-state.warn{background:#fffbeb;border-color:#fde68a}
.phone-icon{font-size:28px;line-height:1}.grow{flex:1}
.reward-target{display:flex;align-items:center;gap:12px;padding:15px;border-radius:18px;background:linear-gradient(135deg,#fff7ed,#fffbeb);border:1px solid #fed7aa;margin-bottom:12px}.gift-icon{font-size:30px}
.certificate{padding:28px 24px;text-align:center;border:7px double #d6b35c;border-radius:20px;background:linear-gradient(180deg,#fff,#fffdf5);box-shadow:0 12px 35px rgba(0,0,0,.08)}
.cert-badge{font-size:48px}.cert-small{font-weight:800;letter-spacing:1px;color:#8b6b18;margin:4px 0}.certificate h1{font-size:34px;margin:8px 0}.certificate p{max-width:620px;margin:0 auto 18px;color:#5b6473}.cert-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}.cert-stats div{padding:12px;border:1px solid #ead9a3;border-radius:14px;background:#fff}.cert-stats strong{display:block;font-size:24px}.cert-stats span{font-size:12px;color:#6b7280}.cert-reward{margin:16px auto;padding:12px;border-radius:14px;background:#fff7d6;max-width:520px}.cert-date,.cert-sign{margin-top:12px;color:#6b7280;font-size:13px}
@media(max-width:720px){.cert-stats{grid-template-columns:1fr}.certificate{padding:20px 14px}.phone-state{align-items:flex-start}}
@media print{body *{visibility:hidden}.certificate,.certificate *{visibility:visible}.certificate{position:absolute;inset:20px;width:auto;box-shadow:none}.modal-box{box-shadow:none}}

.phone-state.clickable{cursor:pointer;transition:transform .15s ease,box-shadow .15s ease}.phone-state.clickable:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(0,0,0,.08)}

#sync-status{position:fixed;bottom:10px;left:10px;z-index:10000;color:white;padding:7px 12px;border-radius:8px;font-size:12px;max-width:90vw;pointer-events:none}