/* Polyglot AI 5.0 Adaptive Learning Platform */
:root{
  --v50-bg:#0f1830;--v50-panel:#172544;--v50-panel2:#1d2d50;--v50-line:rgba(255,255,255,.12);
  --v50-text:#f7f9ff;--v50-soft:#cbd6ee;--v50-accent:#8b5cf6;--v50-cyan:#38bdf8;--v50-green:#34d399;--v50-warn:#fbbf24;
}
.v50-nav-icon{width:20px;display:inline-grid;place-items:center;font-size:17px}
.v50-dashboard{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(120px,.55fr)) auto;gap:12px;align-items:stretch;padding:18px;margin:0 0 18px}
.v50-dashboard>div h2{margin:4px 0 6px;font-size:26px}.v50-dashboard>div p{margin:0;color:var(--v50-soft);line-height:1.6;font-size:13px}
.v50-dashboard article{border:1px solid var(--v50-line);background:rgba(255,255,255,.045);border-radius:18px;padding:14px;display:flex;flex-direction:column;justify-content:center;gap:4px}
.v50-dashboard article span{font-size:11px;color:var(--v50-soft)}.v50-dashboard article b{font-size:23px}.v50-dashboard button{border:0;border-radius:16px;padding:0 18px;color:#fff;background:linear-gradient(135deg,var(--v50-accent),#4f46e5);font-weight:800;cursor:pointer}
.v50-overlay{position:fixed;inset:0;z-index:1600;background:rgba(4,8,20,.75);backdrop-filter:blur(14px);display:grid;place-items:center;padding:18px}
.v50-shell{width:min(1180px,97vw);height:min(820px,94vh);background:linear-gradient(165deg,#263961,#101a31);border:1px solid rgba(255,255,255,.16);border-radius:30px;box-shadow:0 35px 120px rgba(0,0,0,.55);overflow:hidden;color:var(--v50-text);display:grid;grid-template-rows:auto 1fr}
.v50-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 18px;border-bottom:1px solid var(--v50-line);background:rgba(12,21,42,.72)}
.v50-brand{display:flex;align-items:center;gap:12px}.v50-logo{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,var(--v50-accent),var(--v50-cyan));font-size:20px}.v50-brand b{display:block;font-size:17px}.v50-brand small{color:var(--v50-soft)}
.v50-close{width:40px;height:40px;border:1px solid var(--v50-line);background:rgba(255,255,255,.06);color:#fff;border-radius:13px;font-size:20px;cursor:pointer}
.v50-body{display:grid;grid-template-columns:220px minmax(0,1fr);min-height:0}.v50-tabs{padding:14px;border-right:1px solid var(--v50-line);overflow:auto;background:rgba(8,14,28,.28);display:flex;flex-direction:column;gap:8px}
.v50-tab{border:1px solid transparent;background:transparent;color:#dce6fa;border-radius:14px;padding:12px;text-align:left;display:flex;align-items:center;gap:10px;cursor:pointer;font-size:13px;font-weight:700}.v50-tab:hover{background:rgba(255,255,255,.05)}.v50-tab.active{background:linear-gradient(135deg,rgba(139,92,246,.28),rgba(56,189,248,.11));border-color:rgba(196,181,253,.30);color:#fff}
.v50-content{padding:18px;overflow:auto}.v50-view{display:none}.v50-view.active{display:block}.v50-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:16px}.v50-heading h1{font-size:31px;margin:3px 0 6px;line-height:1.15}.v50-heading p{color:var(--v50-soft);margin:0;line-height:1.65;font-size:13px}.v50-pill{border:1px solid var(--v50-line);background:rgba(255,255,255,.05);border-radius:999px;padding:8px 12px;color:#dce6fa;font-size:11px;white-space:nowrap}
.v50-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.v50-card{border:1px solid var(--v50-line);background:linear-gradient(155deg,rgba(255,255,255,.075),rgba(255,255,255,.03));border-radius:20px;padding:16px}.v50-card h3{margin:4px 0 7px;font-size:18px}.v50-card p{margin:0;color:var(--v50-soft);font-size:12px;line-height:1.65}.v50-card button,.v50-action{margin-top:12px;border:1px solid var(--v50-line);background:rgba(255,255,255,.07);color:#fff;border-radius:12px;padding:10px 12px;cursor:pointer;font-weight:700}.v50-card button.primary,.v50-action.primary{background:linear-gradient(135deg,var(--v50-accent),#4f46e5);border:0}
.v50-daily{display:grid;grid-template-columns:1.25fr .75fr;gap:14px}.v50-plan{display:flex;flex-direction:column;gap:10px}.v50-step{display:grid;grid-template-columns:42px 1fr auto;gap:12px;align-items:center;border:1px solid var(--v50-line);background:rgba(255,255,255,.045);border-radius:16px;padding:12px}.v50-step-index{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;background:rgba(139,92,246,.18);font-weight:900}.v50-step b{display:block;font-size:14px}.v50-step small{color:var(--v50-soft)}.v50-step button{border:0;border-radius:10px;background:rgba(255,255,255,.08);color:#fff;padding:8px 10px;cursor:pointer}.v50-step.done{border-color:rgba(52,211,153,.45);background:rgba(52,211,153,.07)}
.v50-skill{margin-bottom:11px}.v50-skill-head{display:flex;justify-content:space-between;font-size:12px;margin-bottom:5px}.v50-track{height:9px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;position:relative}.v50-track i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--v50-accent),var(--v50-cyan),var(--v50-green))}.v50-track em{position:absolute;left:75%;top:0;bottom:0;border-left:2px solid var(--v50-warn)}
.v50-topic-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.v50-topic{position:relative;min-height:128px;border:1px solid var(--v50-line);border-radius:18px;padding:14px;background:rgba(255,255,255,.045);overflow:hidden}.v50-topic:after{content:"";position:absolute;inset:auto 0 0;height:5px;background:linear-gradient(90deg,var(--v50-accent),var(--v50-cyan));width:var(--score)}.v50-topic span{font-size:23px}.v50-topic b{display:block;margin:7px 0 4px}.v50-topic small{color:var(--v50-soft)}
.v50-story-hero{display:grid;grid-template-columns:1fr .72fr;gap:14px}.v50-story-paper{font-size:16px;line-height:1.95;color:#f5f7ff}.v50-story-paper mark{background:rgba(251,191,36,.22);color:#fff;border-radius:5px;padding:1px 3px}.v50-chapters{display:flex;flex-direction:column;gap:8px}.v50-chapter{border:1px solid var(--v50-line);background:rgba(255,255,255,.04);border-radius:13px;padding:11px;cursor:pointer}.v50-chapter.active{border-color:rgba(196,181,253,.4);background:rgba(139,92,246,.12)}
.v50-personas{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.v50-persona{text-align:center;cursor:pointer}.v50-persona .avatar{width:58px;height:58px;margin:0 auto 9px;border-radius:18px;display:grid;place-items:center;font-size:29px;background:rgba(255,255,255,.07)}.v50-persona.active{border-color:rgba(196,181,253,.48);box-shadow:0 0 0 2px rgba(139,92,246,.12)}
.v50-shadowing{display:grid;grid-template-columns:1fr 1fr;gap:14px}.v50-quote{font-size:23px;line-height:1.55;margin:8px 0}.v50-score-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.v50-score{border:1px solid var(--v50-line);border-radius:14px;padding:11px;background:rgba(255,255,255,.04)}.v50-score b{font-size:22px;display:block}.v50-score span{font-size:11px;color:var(--v50-soft)}
.v50-input, .v50-select, .v50-textarea{width:100%;border:1px solid var(--v50-line);background:rgba(255,255,255,.055);color:#fff;border-radius:13px;padding:12px;font:inherit;box-sizing:border-box}.v50-textarea{min-height:100px;resize:vertical}.v50-input option,.v50-select option{color:#111}.v50-form{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.v50-form label{display:flex;flex-direction:column;gap:6px;font-size:12px;color:var(--v50-soft)}.v50-form label.full{grid-column:1/-1}
.v50-report{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:14px}.v50-report article{border:1px solid var(--v50-line);background:rgba(255,255,255,.04);border-radius:16px;padding:14px}.v50-report b{display:block;font-size:25px}.v50-report span{color:var(--v50-soft);font-size:11px}
.v50-toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:1900;background:#10182b;color:#fff;border:1px solid var(--v50-line);border-radius:14px;padding:11px 16px;box-shadow:0 16px 50px rgba(0,0,0,.35)}
@media(max-width:980px){.v50-dashboard{grid-template-columns:1fr 1fr}.v50-dashboard>div{grid-column:1/-1}.v50-dashboard button{min-height:48px}.v50-body{grid-template-columns:1fr}.v50-tabs{border-right:0;border-bottom:1px solid var(--v50-line);flex-direction:row;overflow:auto;padding:10px}.v50-tab{flex:0 0 auto}.v50-shell{width:100vw;height:100dvh;border-radius:0}.v50-overlay{padding:0}.v50-content{padding:14px}.v50-grid{grid-template-columns:1fr 1fr}.v50-topic-grid{grid-template-columns:1fr 1fr}.v50-personas{grid-template-columns:1fr 1fr}.v50-daily,.v50-story-hero,.v50-shadowing{grid-template-columns:1fr}.v50-heading h1{font-size:25px}}
@media(max-width:560px){.v50-dashboard{grid-template-columns:1fr}.v50-dashboard>div{grid-column:auto}.v50-grid,.v50-topic-grid,.v50-personas,.v50-form,.v50-report{grid-template-columns:1fr}.v50-heading{flex-direction:column}.v50-top{padding:11px 12px}.v50-brand small{display:none}.v50-content{padding-bottom:calc(90px + env(safe-area-inset-bottom))}.v50-step{grid-template-columns:38px 1fr}.v50-step button{grid-column:1/-1}.v50-quote{font-size:19px}}