:root{--bg-space-1: #0a0b1e;--bg-space-2: #12123a;--bg-space-3: #1b1650;--bg-panel: #171432;--bg-panel-soft: rgba(255, 255, 255, .04);--border-soft: rgba(255, 255, 255, .09);--border-glow: rgba(139, 92, 246, .35);--accent-purple: #8b5cf6;--accent-purple-dark: #6d28d9;--accent-pink: #ec4899;--accent-blue: #38bdf8;--accent-gold: #fbbf24;--text-primary: #f3f2ff;--text-secondary: #b3aed6;--text-muted: #7d78a3;--success: #34d399;--danger: #f87171;--radius-lg: 18px;--radius-md: 12px;--radius-sm: 8px;--shadow-glow: 0 8px 30px rgba(76, 29, 149, .35)}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:Segoe UI,Roboto,Arial,sans-serif;color:var(--text-primary);background-color:var(--bg-space-1);background-image:radial-gradient(1.5px 1.5px at 10% 15%,rgba(255,255,255,.9),transparent),radial-gradient(1px 1px at 30% 70%,rgba(255,255,255,.7),transparent),radial-gradient(2px 2px at 50% 35%,rgba(255,255,255,.6),transparent),radial-gradient(1px 1px at 70% 80%,rgba(255,255,255,.8),transparent),radial-gradient(1.5px 1.5px at 85% 20%,rgba(255,255,255,.6),transparent),radial-gradient(1px 1px at 95% 60%,rgba(255,255,255,.7),transparent),linear-gradient(180deg,var(--bg-space-1) 0%,var(--bg-space-2) 45%,var(--bg-space-3) 100%);background-repeat:repeat,repeat,repeat,repeat,repeat,repeat,no-repeat;background-size:260px 260px,260px 260px,260px 260px,260px 260px,260px 260px,260px 260px,100% 100%;background-attachment:fixed;min-height:100vh}h1,h2,h3,h4{margin:0 0 8px}label{color:var(--text-secondary);font-size:13px;font-weight:600}a{color:var(--accent-blue)}.app-shell{display:flex;min-height:100vh}.sidebar{width:250px;flex-shrink:0;background:linear-gradient(180deg,#100e2c,#1a1548);border-right:1px solid var(--border-glow);padding:22px 16px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar-brand{display:flex;align-items:center;gap:10px;padding:6px 10px 22px;margin-bottom:14px;border-bottom:1px solid var(--border-soft)}.sidebar-brand-icon{width:38px;height:38px;border-radius:12px;box-shadow:var(--shadow-glow);flex-shrink:0;object-fit:cover;display:block}.sidebar-brand-text .brand-title{font-weight:800;font-size:16px;line-height:1.2;background:linear-gradient(90deg,#fff,var(--accent-blue));-webkit-background-clip:text;background-clip:text;color:transparent}.sidebar-brand-text .brand-subtitle{font-size:11px;color:var(--text-muted);letter-spacing:.04em}.sidebar-nav{display:flex;flex-direction:column;gap:4px;flex:1}.sidebar-section-label{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);font-weight:700;margin:14px 10px 6px}.nav-link{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);color:var(--text-secondary);text-decoration:none;font-size:14px;font-weight:600;transition:background .15s ease,color .15s ease,transform .15s ease}.nav-link:hover{background:#ffffff0f;color:var(--text-primary)}.nav-link.active{background:linear-gradient(90deg,#8b5cf659,#ec48992e);color:#fff;box-shadow:inset 0 0 0 1px var(--border-glow)}.nav-icon{width:20px;height:20px;flex-shrink:0;display:flex;align-items:center;justify-content:center}.sidebar-label{white-space:nowrap}.sidebar-footer{border-top:1px solid var(--border-soft);padding-top:14px;margin-top:14px}.sidebar-user{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--radius-sm);margin-bottom:8px}.sidebar-user-avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--accent-blue),var(--accent-purple));display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff;font-size:14px;flex-shrink:0}.sidebar-user-name{font-size:13px;font-weight:700;color:var(--text-primary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.sidebar-user-role{font-size:11px;color:var(--text-muted)}.logout-link{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);color:var(--text-secondary);text-decoration:none;font-size:14px;font-weight:600;cursor:pointer;background:none;border:none;width:100%;text-align:left;font-family:inherit}.logout-link:hover{background:#f8717124;color:var(--danger)}.main-column{flex:1;display:flex;flex-direction:column;min-height:100vh;min-width:0}.app-header{height:68px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 32px;background:#ffffff08;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-soft);position:sticky;top:0;z-index:5}.header-title{font-size:19px;font-weight:800;color:var(--text-primary)}.header-date{font-size:12px;color:var(--text-muted);margin-top:2px}.header-greeting{font-size:13px;color:var(--text-secondary);text-align:right}.header-greeting strong{color:var(--text-primary)}.app-content{flex:1;padding:28px 32px 12px}.app-footer{padding:16px 32px;text-align:center;color:var(--text-muted);font-size:12px;border-top:1px solid var(--border-soft)}.app-footer strong{color:var(--text-secondary)}.container{max-width:1000px;margin:0 auto}.page-title{font-size:24px;font-weight:800;margin-bottom:4px;background:linear-gradient(90deg,#fff,var(--accent-blue) 70%);-webkit-background-clip:text;background-clip:text;color:transparent;display:inline-block}.page-subtitle{color:var(--text-muted);font-size:14px;margin-bottom:22px}.card{background:var(--bg-panel);border:1px solid var(--border-soft);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-glow);margin-bottom:20px}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:20px}.stat-box{text-align:center}.stat-number{font-size:30px;font-weight:800;background:linear-gradient(90deg,var(--accent-purple),var(--accent-pink));-webkit-background-clip:text;background-clip:text;color:transparent}.stat-label{color:var(--text-muted);font-size:13px;margin-top:2px}.lesson-item{display:flex;justify-content:space-between;align-items:center;padding:14px 4px;border-bottom:1px solid var(--border-soft)}.lesson-item:last-child{border-bottom:none}.tag{display:inline-block;padding:4px 10px;border-radius:999px;background:#8b5cf629;color:#c9b8ff;border:1px solid rgba(139,92,246,.35);font-size:12px;font-weight:700;margin-right:6px}button,.btn{background:linear-gradient(135deg,var(--accent-purple),var(--accent-pink));color:#fff;border:none;border-radius:var(--radius-sm);padding:10px 20px;font-size:14px;font-weight:700;cursor:pointer;box-shadow:0 4px 16px #8b5cf659;transition:transform .12s ease,box-shadow .12s ease,opacity .12s ease;display:inline-block;text-decoration:none}button:hover:not(:disabled),.btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px #8b5cf673}button:active:not(:disabled){transform:translateY(0)}button.secondary{background:#ffffff0f;color:var(--text-primary);border:1px solid var(--border-soft);box-shadow:none}button.secondary:hover:not(:disabled){background:#ffffff1a;box-shadow:none}button.danger{background:linear-gradient(135deg,#f87171,#ef4444);box-shadow:0 4px 16px #ef44444d}button:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}input,select,textarea{background:#ffffff0a;border:1px solid var(--border-soft);color:var(--text-primary);border-radius:var(--radius-sm);font-family:inherit}input::placeholder,textarea::placeholder{color:var(--text-muted)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent-purple);box-shadow:0 0 0 3px #8b5cf633}select option{background:var(--bg-panel);color:var(--text-primary)}textarea{width:100%;padding:10px;font-size:14px}.score-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;text-align:center}.score-big{font-size:32px;font-weight:800;background:linear-gradient(90deg,var(--accent-blue),var(--accent-purple));-webkit-background-clip:text;background-clip:text;color:transparent}.word-chip{display:inline-block;background:#f871711f;color:#ffb4b4;border:1px solid rgba(248,113,113,.3);padding:4px 10px;border-radius:var(--radius-sm);margin:4px}.table{width:100%;border-collapse:collapse}.table th{text-align:left;padding:10px;border-bottom:1px solid var(--border-soft);color:var(--text-muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}.table td{text-align:left;padding:10px;border-bottom:1px solid var(--border-soft)}.table tbody tr:hover{background:#ffffff06}.status-yes{color:var(--success);font-weight:700}.status-no{color:var(--danger);font-weight:700}.step-label{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);font-weight:700;margin-bottom:4px}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{width:100%;max-width:400px;text-align:center}.auth-brand-icon{width:64px;height:64px;margin:0 auto 16px;border-radius:20px;box-shadow:var(--shadow-glow);object-fit:cover;display:block}.auth-title{font-size:22px;font-weight:800;margin-bottom:4px;background:linear-gradient(90deg,#fff,var(--accent-blue));-webkit-background-clip:text;background-clip:text;color:transparent}.auth-subtitle{color:var(--text-muted);font-size:13px;margin-bottom:24px}.auth-card input{width:100%;padding:12px;margin-bottom:12px}.auth-card button{width:100%;padding:12px}.bottom-nav{display:none}@media (max-width: 960px){.sidebar{width:76px;padding:18px 10px;align-items:center}.sidebar-brand{justify-content:center;padding:4px 0 18px}.sidebar-brand-text,.sidebar-label,.sidebar-user-name,.sidebar-user-role,.sidebar-section-label{display:none}.sidebar-user{justify-content:center;padding:8px 0}.nav-link,.logout-link{justify-content:center;padding:12px}.app-header{padding:0 18px}.app-content{padding:20px 18px 8px}.header-greeting{display:none}}@media (max-width: 640px){.sidebar{display:none}.app-shell{flex-direction:column}.app-content{padding:16px 14px 90px}.app-footer{display:none}.header-title{font-size:16px}.app-header{height:58px;padding:0 14px}.bottom-nav{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:30;background:linear-gradient(180deg,#100e2c,#1a1548);border-top:1px solid var(--border-glow);box-shadow:0 -6px 20px #00000059;padding:6px 2px calc(6px + env(safe-area-inset-bottom,0px))}.bottom-nav-link{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:6px 2px;border-radius:var(--radius-sm);color:var(--text-muted);text-decoration:none;font-size:11px;font-weight:600;background:none;border:none;font-family:inherit;cursor:pointer}.bottom-nav-link .nav-icon{width:22px;height:22px}.bottom-nav-link.active{color:#fff;background:linear-gradient(180deg,#8b5cf647,#ec489924)}.bottom-nav-link:active{transform:scale(.96)}.score-grid{grid-template-columns:repeat(3,1fr);row-gap:16px}.stats-grid{grid-template-columns:1fr}}