:root{color:#0f172a;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--muted:#64748b;background:radial-gradient(circle at 0 0,#2563eb2e,#0000 26%),radial-gradient(circle at 100% 0,#14b8a629,#0000 28%),linear-gradient(#eef4ff 0%,#f8fafc 46%,#eefbf8 100%);font-family:Sora,Segoe UI,sans-serif;font-weight:400;line-height:1.5}*{box-sizing:border-box}html,body,#root{min-height:100vh;margin:0}body{min-width:320px}#root{width:min(1240px,100% - 32px);margin:0 auto}button,input,select,textarea{font:inherit}a{color:inherit}.tracker-app{min-height:100vh;padding:28px 0 40px;position:relative}.hero,.panel,.summary-card{-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#ffffffc2;border:1px solid #94a3b829;box-shadow:0 20px 60px #0f172a1a}.hero{border-radius:34px;grid-template-columns:1.35fr .9fr;gap:24px;margin-bottom:24px;padding:32px;display:grid;position:relative;overflow:hidden}.hero:before,.hero:after{content:"";filter:blur(10px);opacity:.8;pointer-events:none;border-radius:999px;position:absolute}.hero:before{background:radial-gradient(circle,#2563eb33,#0000 68%);width:220px;height:220px;top:-90px;right:-30px}.hero:after{background:radial-gradient(circle,#14b8a62e,#0000 70%);width:180px;height:180px;bottom:-60px;left:34%}.eyebrow,.panel-label{letter-spacing:.18em;text-transform:uppercase;color:#2563eb;margin:0 0 10px;font-size:.76rem}.hero h1{margin:0;font-size:clamp(3rem,7vw,5.5rem);line-height:.93}.hero-text{max-width:58ch;color:var(--muted);font-size:1.02rem;line-height:1.75}.hero-actions{flex-wrap:wrap;gap:12px;margin-top:28px;display:flex}.btn{font:inherit;cursor:pointer;border:0;border-radius:999px;padding:12px 18px;font-weight:700;transition:transform .18s,opacity .18s,background .18s,box-shadow .18s}.btn:hover{transform:translateY(-1px);box-shadow:0 12px 30px #2563eb24}.btn-primary{color:#fff;background:linear-gradient(135deg,#2563eb,#14b8a6)}.btn-secondary{color:#fff;background:#0f172a}.btn-ghost{color:var(--muted);background:0 0;border:1px solid #94a3b847}.hero-meta{flex-wrap:wrap;gap:10px;margin-top:18px;display:flex}.hero-meta span{color:var(--muted);background:#ffffffa3;border:1px solid #94a3b829;border-radius:999px;padding:9px 12px;font-size:.92rem}.hero-side{gap:14px;display:grid}.hero-stat{background:linear-gradient(#ffffffd1,#fff9);border:1px solid #2563eb1f;border-radius:24px;padding:20px}.hero-stat.accent{background:linear-gradient(135deg,#2563eb24,#14b8a629)}.hero-stat span,.hero-stat small,.panel-note,.subject-meta span,.subject-meta label span,.bar-label,.bar-value,.empty-state,.session-row p,.session-side small{color:var(--muted)}.hero-stat strong{margin:10px 0 6px;font-size:2rem;display:block}.insight-strip{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:24px;display:grid}.insight-card{background:#ffffffbd;border:1px solid #94a3b824;border-radius:26px;padding:20px;box-shadow:0 18px 40px #0f172a14}.insight-card.primary{color:#fff;background:linear-gradient(135deg,#2563ebeb,#14b8a6db)}.insight-card.primary p,.insight-card.primary .insight-label{color:#ffffffd1}.insight-label{color:var(--muted);text-transform:uppercase;letter-spacing:.16em;margin-bottom:10px;font-size:.8rem;display:block}.insight-card strong{margin-bottom:8px;font-size:1.15rem;display:block}.insight-card p{color:var(--muted);margin:0;line-height:1.65}.dashboard-grid{grid-template-columns:.92fr 1.08fr;gap:24px;display:grid}.left-column,.right-column{gap:24px;display:grid}.panel{background:linear-gradient(#ffffffd1,#ffffffb3);border-radius:30px;padding:24px}.panel-heading{justify-content:space-between;align-items:start;gap:16px;margin-bottom:18px;display:flex}.panel h2{margin:0;font-size:1.45rem}.session-form,.goal-row,.subject-form,.subject-stack,.stats-grid,.session-table{gap:14px;display:grid}.session-form{grid-template-columns:repeat(2,minmax(0,1fr))}.session-form label,.goal-row label,.subject-form label{gap:8px;display:grid}.session-form label span,.goal-row label span,.subject-form label span{color:var(--muted);font-size:.93rem}.wide{grid-column:1/-1}.wide-button{width:100%}select,input,textarea{color:#0f172a;width:100%;font:inherit;background:#ffffffd6;border:1px solid #94a3b833;border-radius:18px;padding:14px 15px}textarea{resize:vertical}select:focus,input:focus,textarea:focus{border-color:#0000;outline:2px solid #2563eb38}.goal-row{grid-template-columns:1fr auto;align-items:end;margin-bottom:14px}.subject-form{grid-template-columns:1fr auto;align-items:end}.subject-card{background:#f8fafcf5;border:1px solid #94a3b824;border-radius:24px;padding:18px;box-shadow:inset 0 1px #fffc}.subject-header,.subject-title,.subject-meta,.session-row,.session-side,.stats-grid{justify-content:space-between;align-items:center;gap:14px;display:flex}.subject-title{justify-content:flex-start}.subject-weekly{color:#0f172a;font-weight:700}.subject-dot{border-radius:999px;width:12px;height:12px}.progress-track,.bar-track{background:#94a3b829;border-radius:999px;width:100%;overflow:hidden}.progress-track{height:12px;margin:12px 0}.progress-fill{border-radius:inherit;background:linear-gradient(90deg,#2563eb,#14b8a6);height:100%}.subject-kpis{flex-wrap:wrap;gap:10px;margin-bottom:12px;display:flex}.subject-badge{background:#2563eb14;border-radius:999px;align-items:center;padding:8px 12px;font-size:.85rem;font-weight:700;display:inline-flex}.subject-badge.neutral{color:var(--muted);background:#94a3b81f}.subject-meta label{gap:6px;min-width:118px;display:grid}.subject-meta input{padding:10px 12px}.stats-grid{grid-template-columns:repeat(4,1fr);display:grid}.summary-card{background:linear-gradient(#ffffffe6,#ffffffb8);border-radius:24px;padding:20px}.summary-card span{color:var(--muted);margin-bottom:8px;display:block}.summary-card strong{font-size:1.65rem}.bar-chart{grid-template-columns:repeat(7,1fr);align-items:end;gap:12px;min-height:250px;display:grid}.bar-column{justify-items:center;gap:10px;display:grid}.bar-track.tall{background:linear-gradient(#2563eb0d,#94a3b826);align-items:end;height:170px;padding:8px;display:flex}.bar-fill{background:linear-gradient(#14b8a6,#2563eb);border-radius:18px;width:100%;box-shadow:0 10px 24px #2563eb2e}.heatmap-grid{grid-template-columns:repeat(10,1fr);gap:8px;display:grid}.heatmap-cell-wrap{aspect-ratio:1}.heatmap-cell{border-radius:10px;width:100%;height:100%;box-shadow:inset 0 0 0 1px #ffffff59}.heatmap-legend{color:var(--muted);justify-content:flex-end;align-items:center;gap:10px;margin-top:14px;font-size:.88rem;display:flex}.legend-scale{gap:6px;display:flex}.legend-scale span{background:#2563eb29;border-radius:999px;width:18px;height:10px}.legend-scale span:nth-child(2){background:#2563eb59}.legend-scale span:nth-child(3){background:#2563eb8f}.legend-scale span:nth-child(4){background:#2563ebdb}.session-row{background:#f8fafcb3;border:1px solid #94a3b824;border-radius:22px;align-items:start;padding:18px}.session-main{min-width:0}.session-badge-row{flex-wrap:wrap;gap:8px;margin-bottom:8px;display:flex}.session-subject-badge,.session-focus-pill{border-radius:999px;align-items:center;padding:7px 10px;font-size:.8rem;font-weight:700;display:inline-flex}.session-focus-pill{color:var(--muted);background:#94a3b81f}.session-row strong{margin-bottom:6px;display:block}.session-side{flex-direction:column;align-items:flex-end;min-width:140px}@media (width<=1080px){.hero,.insight-strip,.dashboard-grid,.stats-grid{grid-template-columns:1fr}}@media (width<=760px){.session-form,.goal-row,.subject-form,.bar-chart{grid-template-columns:1fr}.hero,.panel{padding:20px}.heatmap-grid{grid-template-columns:repeat(6,1fr)}}