*,*:before,*:after{box-sizing:border-box}:root{--radius-sm: 4px;--radius-md: 8px;--radius-lg: 14px;--radius-xl: 16px;--font: "DM Sans", "Segoe UI", system-ui, sans-serif;--font-mono: "Courier New", monospace}body{margin:0;font-family:var(--font)}.app{min-height:100vh;color:var(--tx);background:var(--bg);font-family:var(--font)}.app-container{max-width:960px;margin:0 auto;padding:0 12px 80px}.header{display:flex;justify-content:space-between;align-items:center;padding:16px 0 6px}.header-logo{cursor:pointer}.header-logo h1{margin:0;font-size:24px;font-weight:900;letter-spacing:-1px}.header-logo h1 .accent{color:var(--ac)}.header-logo p{margin:0;font-size:9px;color:var(--dm);letter-spacing:1px;text-transform:uppercase}.header-actions{display:flex;gap:6px}.card{background:var(--c);border-radius:var(--radius-lg);padding:16px;border:1px solid var(--bd)}.btn{border:none;border-radius:var(--radius-md);font-size:12px;font-weight:700;cursor:pointer;transition:all .2s}.btn-primary{background:var(--ac);color:#fff;padding:8px 18px}.btn-secondary{background:var(--c);color:var(--tx);padding:6px 12px;border:1px solid var(--bd)}.btn-ghost{background:var(--c2);color:var(--tx);padding:6px 14px;border:1px solid var(--bd)}.btn-danger{background:#ef444420;color:#ef4444}.btn:disabled{opacity:.5;cursor:default}.input{padding:10px 12px;border-radius:var(--radius-md);border:1px solid var(--bd);background:var(--c2);color:var(--tx);font-size:13px;outline:none}.input:focus{border-color:var(--ac)}.label{display:block;font-size:9px;font-weight:700;color:var(--dm);margin-bottom:3px;text-transform:uppercase;letter-spacing:1px}.hub{margin-top:40px;display:flex;flex-direction:column;gap:16px;max-width:500px;margin-left:auto;margin-right:auto}.hub-card{padding:28px;border-radius:var(--radius-xl);cursor:pointer;transition:all .3s;text-align:center}.hub-card .icon{font-size:48px;margin-bottom:8px}.hub-card h2{margin:0 0 4px;font-size:20px;font-weight:800}.hub-card p{margin:0;font-size:13px;color:var(--dm)}.hub-card .stats{margin:8px 0 0;font-size:11px}.progress-bar{display:flex;gap:3px;margin:12px 0 10px}.progress-bar .step{flex:1;height:4px;border-radius:2px;background:var(--bd);transition:all .4s}.progress-bar .step.active{background:var(--ac)}.step-header{text-align:center;margin-bottom:12px}.step-header .icon{font-size:24px}.step-header h2{margin:2px 0;font-size:16px;font-weight:800}.schedule-grid{overflow-x:auto;-webkit-overflow-scrolling:touch}.schedule-grid .grid{display:grid;gap:2px;font-size:8px}.schedule-grid .grid-7col{grid-template-columns:40px repeat(7,1fr);min-width:520px}.schedule-grid .grid-7col-compact{grid-template-columns:36px repeat(7,1fr);min-width:500px;font-size:7px}.schedule-grid .day-header{text-align:center;font-weight:800;padding:3px 0;font-size:7px;letter-spacing:1px}.schedule-grid .hour-label{text-align:right;padding-right:2px;color:var(--dm);font-size:8px;line-height:26px}.schedule-grid .hour-label.peak{color:var(--ac);font-weight:800}.schedule-grid .cell{height:26px;border-radius:3px;cursor:pointer;border:1px solid var(--bd);display:flex;align-items:center;justify-content:center;font-size:7px;font-weight:700;-webkit-user-select:none;user-select:none}.schedule-grid .cell.busy{background:var(--bs);color:#fff}.schedule-grid .cell.free{background:var(--fr);color:var(--ft)}.rev-sheet{max-height:70vh;overflow-y:auto;-webkit-overflow-scrolling:touch}.rev-sheet h3{margin:0 0 12px;font-size:16px;font-weight:800;color:var(--ac)}.rev-section{background:var(--bg);border-radius:var(--radius-md);padding:12px;margin-bottom:10px}.rev-section-title{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:1px;margin-bottom:6px}.rev-section-title.defs{color:var(--ac)}.rev-section-title.formulas{color:var(--gn)}.rev-section-title.keywords{color:#e879f9}.rev-section-title.tips{color:#fbbf24}.rev-def-item{font-size:12px;color:var(--tx);margin-bottom:4px;line-height:1.5;padding-left:8px;border-left:2px solid var(--ac)33}.rev-formula-item{font-size:12px;color:var(--tx);margin-bottom:4px;padding:4px 8px;background:var(--c2);border-radius:var(--radius-sm);font-family:var(--font-mono)}.rev-keyword-tag{padding:3px 8px;border-radius:12px;background:#e879f915;color:#e879f9;font-size:10px;font-weight:600}.rev-keyword-def{font-size:11px;color:var(--tx);margin-bottom:3px;line-height:1.5;padding-left:10px;border-left:2px solid #e879f933}.rev-keyword-def strong{color:#e879f9}.rev-tips{background:#fbbf2410;border:1px solid #fbbf2430}.rev-tips-text{font-size:12px;color:var(--tx);line-height:1.5}.overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--ov);display:flex;align-items:center;justify-content:center;z-index:999;padding:16px}.overlay.z-top{z-index:1000}.modal{background:var(--pp);border-radius:var(--radius-lg);padding:20px;width:100%;box-shadow:0 20px 60px #0008;max-height:80vh;overflow-y:auto;-webkit-overflow-scrolling:touch}.modal-sm{max-width:380px}.modal-md{max-width:500px}.modal-lg{max-width:600px}.day-tabs{display:flex;gap:3px;margin-bottom:8px;overflow-x:auto;-webkit-overflow-scrolling:touch}.day-tabs .tab{flex:1 1 0;min-width:0;white-space:nowrap}.stats-grid{display:grid;gap:6px}.stats-grid.cols-4{grid-template-columns:repeat(4,1fr)}.stats-grid .stat-item{background:var(--bg);padding:8px;border-radius:6px;text-align:center}.stats-grid .stat-value{font-size:16px;font-weight:800}.stats-grid .stat-label{font-size:7px;color:var(--dm)}.subject-card{padding:14px;border-radius:10px;cursor:pointer;transition:all .2s}.subject-card .name{font-weight:700;font-size:12px}.subject-card .info{font-size:10px;color:var(--dm);margin-top:4px}.library-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:8px}.urgency-badge{padding:6px 10px;border-radius:6px;margin-bottom:3px;font-size:10px;display:flex;align-items:center;gap:6px}.urgency-badge.critical{background:#ef444415;border:1px solid #ef444430}.urgency-badge.warning{background:#f9731615;border:1px solid #f9731630}.urgency-badge.info{background:#60a5fa10;border:1px solid #60a5fa20}.resource-link{padding:3px 7px;border-radius:var(--radius-sm);font-size:9px;font-weight:600;text-decoration:none;display:inline-block}.resource-link-lg{display:flex;justify-content:space-between;padding:8px 10px;border-radius:6px;font-size:11px;font-weight:600;text-decoration:none}.nav-bottom{display:flex;justify-content:space-between;margin-top:14px}.flex{display:flex}.flex-wrap{flex-wrap:wrap}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-2{gap:2px}.gap-3{gap:3px}.gap-4{gap:4px}.gap-6{gap:6px}.gap-8{gap:8px}.text-center{text-align:center}.w-full{width:100%}