:root{
  --ink:#12324a;--forest:#248bff;--forest-2:#1475dc;--cream:#f4faff;--paper:#ffffff;
  --coral:#55c2ff;--gold:#32b6e9;--line:#cfe8f8;--muted:#5f7890;
  --shadow:0 18px 50px rgba(36,139,255,.13);background:var(--cream);
}
body{background:radial-gradient(circle at 78% 0,#e1f5ff 0,transparent 33%),var(--cream)}
.sidebar{background:linear-gradient(165deg,#248bff 0%,#187edf 52%,#1169c4 100%)}
.topbar{background:rgba(244,250,255,.88)}
.topbar h1,.panel h2,.modal-card h2,.admin-heading h1,.access-card h2{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;letter-spacing:-.035em}
.progress-label strong{color:#d8f4ff}.progress-card small,.brand small{color:#d9efff}
.lesson-link .num{color:#cfeeff}.lesson-link.active .num{color:#248bff}.lesson-link.completed .done{color:#fff}
.search svg{stroke:#d9efff}.search input::placeholder{color:#c6e5f8}
.pill,.score,.word-chip.learned,.cloud-status{background:#e6f5ff}
.speech{background:#f3f9ff}.speech:nth-child(even){background:#eaf6ff}
.tip{background:#eef9ff;border-color:#bfe6fa}.tip span{background:#32b6e9}
.flash-back{background:#e9f7ff}.grammar-card{background:#edf8ff}
.study-hint{border-color:#55c2ff}.status.active{background:#e0f5ff;color:#1267a0}.status.pending{background:#eef4f8;color:#60788b}
.payment-icon{background:#e3f5ff;color:#248bff}.access-brand p{color:#d9efff}.access-badge{color:#e4f7ff}
.admin-stat span{color:#d9efff}.student>span{background:#e4f4ff}.auth-tabs{background:#e6f2fb}
.auth-error,.feedback.bad{color:#d44661}.feedback.good{color:#1475dc}
.panel,.access-shell,.admin-panel{box-shadow:var(--shadow)}
.panel{border-radius:26px}.primary{box-shadow:0 8px 20px rgba(36,139,255,.2)}
.ghost:hover,.account-button:hover{background:#eef8ff}
.complete-button.completed{border-color:#83cfff;background:#e9f7ff}
.complete-button.completed .check{background:#248bff;border-color:#248bff}
.tabs button span{background:#e5f3fc}.word-chip.learning{border-color:#83cfff;background:#f0f9ff}
.modal-backdrop{background:rgba(18,50,74,.58)}
.access-body{background:linear-gradient(145deg,#248bff,#55c2ff)}
.access-shell{border-radius:34px}.access-brand{background:linear-gradient(155deg,#248bff,#1475dc)}
.account-avatar{background:linear-gradient(135deg,#55c2ff,#248bff)}
.ai-message.assistant{background:#eaf6ff}.ai-message.user{background:#248bff}
.ai-round-icon,.attempts-badge{background:#e5f5ff;color:#1475dc}.live-dot{background:#55c2ff;box-shadow:0 0 0 5px #e2f5ff}
.ai-privacy,.report-summary{background:#eef9ff}