:root{--bg-deepest: #060609;--bg-deep: #0a0a0f;--bg-base: #0e0e16;--bg-raised: #12121a;--bg-elevated: #1a1a2e;--bg-surface: #22223a;--bg-hover: #2a2a44;--accent: #6366f1;--accent-light: #818cf8;--accent-dark: #4f46e5;--accent-glow: rgba(99, 102, 241, .25);--accent-subtle: rgba(99, 102, 241, .08);--violet: #8b5cf6;--violet-light: #a78bfa;--violet-glow: rgba(139, 92, 246, .25);--success: #22c55e;--success-bg: rgba(34, 197, 94, .1);--warning: #f59e0b;--warning-bg: rgba(245, 158, 11, .1);--danger: #ef4444;--danger-bg: rgba(239, 68, 68, .1);--info: #06b6d4;--info-bg: rgba(6, 182, 212, .1);--text-primary: #f1f1f6;--text-secondary: #a1a1b5;--text-tertiary: #6b6b80;--text-muted: #4a4a5e;--border: rgba(255, 255, 255, .06);--border-light: rgba(255, 255, 255, .1);--border-accent: rgba(99, 102, 241, .3);--glass-bg: rgba(18, 18, 26, .7);--glass-border: rgba(255, 255, 255, .08);--glass-shadow: 0 8px 32px rgba(0, 0, 0, .4);--sidebar-width: 260px;--sidebar-collapsed: 72px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .4s cubic-bezier(.4, 0, .2, 1)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg-deepest);color:var(--text-primary);line-height:1.6;min-height:100vh;overflow-x:hidden}#root{min-height:100vh}a{color:var(--accent-light);text-decoration:none}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-surface);border-radius:99px}::-webkit-scrollbar-thumb:hover{background:var(--bg-hover)}.app-layout{display:flex;min-height:100vh}.main-content{flex:1;margin-left:var(--sidebar-width);padding:32px 40px;min-height:100vh;transition:margin-left var(--transition-base)}@media (max-width: 768px){.main-content{margin-left:0;padding:72px 16px 20px}}.sidebar{position:fixed;top:0;left:0;width:var(--sidebar-width);height:100vh;background:var(--bg-base);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:100;transition:transform var(--transition-base)}.sidebar-brand{padding:28px 24px 20px;border-bottom:1px solid var(--border)}.sidebar-brand h1{font-size:1.15rem;font-weight:700;background:linear-gradient(135deg,var(--accent-light),var(--violet-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.sidebar-brand p{font-size:.72rem;color:var(--text-tertiary);margin-top:2px;font-weight:500;text-transform:uppercase;letter-spacing:.08em}.sidebar-nav{flex:1;padding:16px 12px;overflow-y:auto}.sidebar-section-label{font-size:.65rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.1em;padding:16px 12px 8px}.sidebar-link{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:var(--radius-sm);color:var(--text-secondary);font-size:.875rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast);text-decoration:none;position:relative;overflow:hidden}.sidebar-link:hover{color:var(--text-primary);background:var(--bg-elevated)}.sidebar-link.active{color:var(--accent-light);background:var(--accent-subtle)}.sidebar-link.active:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:60%;background:var(--accent);border-radius:0 99px 99px 0}.sidebar-link svg,.sidebar-link .nav-icon{width:20px;height:20px;flex-shrink:0;font-size:1.1rem}.sidebar-footer{padding:16px;border-top:1px solid var(--border)}.sidebar-user{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-sm)}.sidebar-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--violet));display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem;color:#fff;flex-shrink:0}.sidebar-user-info{flex:1;min-width:0}.sidebar-user-name{font-size:.82rem;font-weight:600;color:var(--text-primary)}.sidebar-user-role{font-size:.7rem;color:var(--text-tertiary)}.sidebar-logout{background:none;border:none;color:var(--text-tertiary);cursor:pointer;padding:6px;border-radius:var(--radius-sm);transition:all var(--transition-fast);font-size:1.1rem}.sidebar-logout:hover{color:var(--danger);background:var(--danger-bg)}.mobile-header{display:none;position:fixed;top:0;left:0;right:0;height:60px;background:var(--bg-base);border-bottom:1px solid var(--border);z-index:99;align-items:center;padding:0 16px;gap:12px}.mobile-toggle{background:none;border:none;color:var(--text-primary);font-size:1.5rem;cursor:pointer;padding:4px}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;z-index:99;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}@media (max-width: 768px){.mobile-header{display:flex}.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-overlay.open{display:block}}.page-header{margin-bottom:32px}.page-header h2{font-size:1.75rem;font-weight:700;letter-spacing:-.03em;color:var(--text-primary)}.page-header p{color:var(--text-secondary);font-size:.9rem;margin-top:4px}.page-header-actions{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}.card{background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--glass-shadow);transition:all var(--transition-base)}.card:hover{border-color:var(--border-light)}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.card-title{font-size:1rem;font-weight:600;color:var(--text-primary)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px;margin-bottom:32px}.stat-card{background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--glass-shadow);position:relative;overflow:hidden;transition:all var(--transition-base)}.stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--accent),var(--violet));opacity:0;transition:opacity 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var(--transition-fast);white-space:nowrap;position:relative;overflow:hidden}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;box-shadow:0 2px 12px var(--accent-glow)}.btn-primary:hover:not(:disabled){box-shadow:0 4px 20px var(--accent-glow);transform:translateY(-1px)}.btn-secondary{background:var(--bg-elevated);color:var(--text-secondary);border:1px solid var(--border-light)}.btn-secondary:hover:not(:disabled){background:var(--bg-hover);color:var(--text-primary)}.btn-danger{background:var(--danger-bg);color:var(--danger);border:1px solid rgba(239,68,68,.2)}.btn-danger:hover:not(:disabled){background:#ef444433}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--bg-elevated);color:var(--text-primary)}.btn-sm{padding:6px 12px;font-size:.78rem}.btn-lg{padding:14px 28px;font-size:.95rem}.btn-icon{width:36px;height:36px;padding:0;border-radius:var(--radius-sm)}.btn-icon.sm{width:30px;height:30px}.form-group{margin-bottom:20px}.form-label{display:block;font-size:.8rem;font-weight:600;color:var(--text-secondary);margin-bottom:6px;text-transform:uppercase;letter-spacing:.05em}.form-input,.form-select,.form-textarea{width:100%;padding:10px 14px;background:var(--bg-deep);border:1px solid var(--border-light);border-radius:var(--radius-sm);color:var(--text-primary);font-family:inherit;font-size:.9rem;transition:all var(--transition-fast);outline:none}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}.form-input::placeholder{color:var(--text-muted)}.form-select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%236b6b80'%3e%3cpath d='M7 10l5 5 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td{border-bottom:none}.table tr:hover td{background:var(--bg-elevated)}.table td.primary{color:var(--text-primary);font-weight:500}.table-actions{display:flex;gap:6px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px;animation:fadeIn var(--transition-fast) ease-out}.modal{background:var(--bg-raised);border:1px solid var(--glass-border);border-radius:var(--radius-xl);width:100%;max-width:520px;max-height:85vh;overflow-y:auto;box-shadow:0 24px 80px #00000080;animation:slideUp var(--transition-base) ease-out}.modal.wide{max-width:720px}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:24px 28px 0}.modal-header 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ease-out}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-sm{gap:8px}.gap-md{gap:16px}.gap-lg{gap:24px}.mt-sm{margin-top:8px}.mt-md{margin-top:16px}.mt-lg{margin-top:24px}.mb-md{margin-bottom:16px}.text-center{text-align:center}.text-sm{font-size:.85rem}.text-xs{font-size:.75rem}.text-muted{color:var(--text-tertiary)}.text-danger{color:var(--danger)}.text-success{color:var(--success)}.w-full{width:100%}.settings-section{max-width:520px}.settings-section .card{margin-bottom:24px}@media (max-width: 640px){.form-row{grid-template-columns:1fr}.stats-grid{grid-template-columns:1fr 1fr}.calendar-grid{gap:4px}.calendar-day{min-height:60px;padding:6px}.timetable-grid{font-size:.75rem}}