@import "https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600&display=swap";
*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0a0a0f;--surface:#12121a;--card:#1a1a2e;--card-hover:#1e1e35;--border:#2a2a3e;--border-light:#3a3a5e;--primary:#6c63ff;--primary-light:#8b84ff;--primary-glow:#6c63ff33;--secondary:#00d4ff;--secondary-glow:#00d4ff26;--success:#00e96a;--success-glow:#00e96a26;--warning:#ffb547;--warning-glow:#ffb54726;--danger:#ff4d6a;--danger-glow:#ff4d6a26;--text:#fff;--text-secondary:#8b8ba7;--text-muted:#5a5a78;--radius:16px;--radius-sm:10px;--radius-lg:24px;--shadow:0 4px 24px #0006;--shadow-card:0 8px 32px #00000080;--transition:all .2s ease}html,body{height:100%}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:Inter,sans-serif;line-height:1.6}h1,h2,h3,h4,h5{font-family:Outfit,sans-serif}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:var(--surface)}::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--primary)}.app-layout{min-height:100vh;display:flex}.sidebar{background:var(--surface);border-right:1px solid var(--border);z-index:100;flex-direction:column;flex-shrink:0;width:260px;transition:transform .3s;display:flex;position:fixed;top:0;bottom:0;left:0}.sidebar-logo{border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:24px 20px;display:flex}.sidebar-logo .logo-icon{background:linear-gradient(135deg, var(--primary), var(--secondary));border-radius:12px;justify-content:center;align-items:center;width:40px;height:40px;font-size:20px;display:flex}.sidebar-logo h2{color:var(--text);font-size:18px;font-weight:700}.sidebar-logo span{color:var(--text-muted);font-size:11px;display:block}.sidebar-nav{flex:1;padding:16px 12px;overflow-y:auto}.nav-section-title{letter-spacing:1.5px;color:var(--text-muted);text-transform:uppercase;padding:8px 8px 4px;font-size:10px;font-weight:600}.nav-item{border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;transition:var(--transition);align-items:center;gap:10px;margin-bottom:2px;padding:11px 12px;font-size:14px;font-weight:500;text-decoration:none;display:flex}.nav-item:hover{background:var(--card);color:var(--text)}.nav-item.active{background:var(--primary-glow);color:var(--primary-light)}.nav-item .icon{text-align:center;width:20px;font-size:16px}.sidebar-footer{border-top:1px solid var(--border);padding:16px 12px}.user-card{border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);align-items:center;gap:10px;padding:10px;display:flex}.user-card:hover{background:var(--card)}.avatar{background:linear-gradient(135deg, var(--primary), var(--secondary));border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:14px;font-weight:700;display:flex}.avatar.lg{width:48px;height:48px;font-size:18px}.avatar.xl{width:64px;height:64px;font-size:24px}.user-info{flex:1;min-width:0}.user-info .name{white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;overflow:hidden}.user-info .role{color:var(--text-muted);font-size:11px}.main-content{flex:1;min-height:100vh;margin-left:260px}.page-header{justify-content:space-between;align-items:center;padding:28px 32px 0;display:flex}.page-title{font-size:26px;font-weight:700}.page-sub{color:var(--text-secondary);margin-top:2px;font-size:14px}.page-body{padding:24px 32px 40px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.card-glass{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:var(--radius);background:#1a1a2ecc;padding:20px}.stat-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;display:grid}.stat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);transition:var(--transition);padding:20px;position:relative;overflow:hidden}.stat-card:hover{border-color:var(--border-light);box-shadow:var(--shadow-card);transform:translateY(-2px)}.stat-card .glow{opacity:.15;filter:blur(20px);border-radius:50%;width:80px;height:80px;position:absolute;top:-20px;right:-20px}.stat-card .label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;font-size:12px;font-weight:500}.stat-card .value{margin:8px 0 4px;font-family:Outfit,sans-serif;font-size:32px;font-weight:800}.stat-card .sub{color:var(--text-muted);font-size:12px}.stat-card .icon{margin-bottom:12px;font-size:28px}.progress-bar{background:var(--border);border-radius:100px;height:8px;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--primary), var(--secondary));border-radius:100px;height:100%;transition:width .6s cubic-bezier(.4,0,.2,1)}.progress-fill.success{background:linear-gradient(90deg, var(--success), #00b87c)}.progress-fill.warning{background:linear-gradient(90deg, var(--warning), #ff8c00)}.btn{border-radius:var(--radius-sm);cursor:pointer;transition:var(--transition);border:none;align-items:center;gap:8px;padding:10px 20px;font-family:Inter,sans-serif;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-light);box-shadow:0 4px 20px var(--primary-glow);transform:translateY(-1px)}.btn-secondary{background:var(--card);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{border-color:var(--border-light);background:var(--card-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-success{background:var(--success);color:#000}.btn-sm{padding:7px 14px;font-size:13px}.btn-lg{padding:14px 28px;font-size:16px}.btn-block{justify-content:center;width:100%}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.form-group{margin-bottom:16px}.form-label{color:var(--text-secondary);margin-bottom:6px;font-size:13px;font-weight:600;display:block}.form-input{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text);transition:var(--transition);padding:12px 14px;font-family:Inter,sans-serif;font-size:14px}.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow);outline:none}.form-input::placeholder{color:var(--text-muted)}.form-input.error{border-color:var(--danger)}.badge{border-radius:100px;align-items:center;gap:4px;padding:4px 10px;font-size:11px;font-weight:600;display:inline-flex}.badge-primary{background:var(--primary-glow);color:var(--primary-light)}.badge-success{background:var(--success-glow);color:var(--success)}.badge-warning{background:var(--warning-glow);color:var(--warning)}.badge-danger{background:var(--danger-glow);color:var(--danger)}.badge-info{background:var(--secondary-glow);color:var(--secondary)}.subject-matematik{--subj-color:#6c63ff}.subject-turkce{--subj-color:#00d4ff}.subject-fen{--subj-color:#00e96a}.subject-sosyal{--subj-color:#ffb547}.subject-ingilizce{--subj-color:#ff4d6a}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%}th{text-align:left;letter-spacing:.5px;color:var(--text-muted);text-transform:uppercase;border-bottom:1px solid var(--border);padding:12px 16px;font-size:11px;font-weight:600}td{color:var(--text-secondary);border-bottom:1px solid var(--border);padding:14px 16px;font-size:14px}tr:last-child td{border-bottom:none}tr:hover td{background:var(--surface);color:var(--text)}.grid-2{grid-template-columns:1fr 1fr;gap:20px;display:grid}.grid-3{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}.grid-4{grid-template-columns:repeat(4,1fr);gap:16px;display:grid}.flex{display:flex}.flex-center{align-items:center;display:flex}.flex-between{justify-content:space-between;align-items:center;display:flex}.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}.gap-20{gap:20px}.mb-8{margin-bottom:8px}.mb-12{margin-bottom:12px}.mb-16{margin-bottom:16px}.mb-20{margin-bottom:20px}.mb-24{margin-bottom:24px}.text-center{text-align:center}.text-primary{color:var(--primary-light)}.text-success{color:var(--success)}.text-warning{color:var(--warning)}.text-danger{color:var(--danger)}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.font-bold{font-weight:700}.font-heading{font-family:Outfit,sans-serif}.section-header{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.section-title{font-size:16px;font-weight:700}.num-input-wrap{align-items:center;gap:8px;display:flex}.num-input-wrap input[type=number]{text-align:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);width:80px;color:var(--text);-moz-appearance:textfield;padding:8px;font-size:18px;font-weight:700}.num-input-wrap input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none}.num-input-wrap input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none}.num-btn{background:var(--card);border:1px solid var(--border);width:36px;height:36px;color:var(--text);cursor:pointer;transition:var(--transition);border-radius:50%;justify-content:center;align-items:center;font-size:18px;display:flex}.num-btn:hover{background:var(--primary);border-color:var(--primary)}.streak-display{border-radius:var(--radius);background:linear-gradient(135deg,#ff4d6a26,#ffb54726);border:1px solid #ffb5474d;align-items:center;gap:8px;padding:12px 16px;display:flex}.streak-display .flame{font-size:32px;animation:2s infinite pulse}.streak-display .count{color:var(--warning);font-family:Outfit,sans-serif;font-size:36px;font-weight:800}.streak-display .label{color:var(--text-secondary);font-size:13px}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.1)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-10px)}to{opacity:1;transform:translate(0)}}@keyframes spin{to{transform:rotate(360deg)}}.animate-in{animation:.3s fadeIn}.auth-page{background:radial-gradient(ellipse at top left, #6c63ff26 0%, var(--bg) 60%);justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.auth-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);width:100%;max-width:420px;padding:40px}.auth-logo{text-align:center;margin-bottom:32px}.auth-logo .logo-icon{background:linear-gradient(135deg, var(--primary), var(--secondary));border-radius:20px;justify-content:center;align-items:center;width:64px;height:64px;margin:0 auto 12px;font-size:32px;display:flex}.auth-logo h1{font-size:24px;font-weight:800}.auth-logo p{color:var(--text-secondary);font-size:14px}.auth-divider{text-align:center;color:var(--text-muted);margin:16px 0;font-size:13px}.auth-footer{text-align:center;color:var(--text-secondary);margin-top:24px;font-size:14px}.auth-footer a{color:var(--primary-light);font-weight:600;text-decoration:none}.tabs{background:var(--surface);border-radius:var(--radius-sm);gap:4px;margin-bottom:20px;padding:4px;display:flex}.tab-btn{color:var(--text-secondary);cursor:pointer;transition:var(--transition);background:0 0;border:none;border-radius:8px;flex:1;padding:8px 16px;font-family:Inter,sans-serif;font-size:13px;font-weight:600}.tab-btn.active{background:var(--card);color:var(--text)}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;background:#000000b3;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);width:100%;max-width:480px;padding:32px;animation:.2s fadeIn}.modal-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.modal-title{font-size:18px;font-weight:700}.modal-close{color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:4px;font-size:20px}.alert{border-radius:var(--radius-sm);align-items:flex-start;gap:10px;margin-bottom:16px;padding:12px 16px;font-size:13px;display:flex}.alert-danger{background:var(--danger-glow);color:#ff8a9a;border:1px solid #ff4d6a4d}.alert-success{background:var(--success-glow);color:var(--success);border:1px solid #00e96a4d}.alert-info{background:var(--secondary-glow);color:var(--secondary);border:1px solid #00d4ff4d}.spinner{border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;width:24px;height:24px;animation:.8s linear infinite spin}.loading-screen{flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:100vh;display:flex}.subject-entry-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);transition:var(--transition);padding:18px}.subject-entry-card:hover{border-color:var(--border-light)}.subject-entry-card .subject-name{align-items:center;gap:8px;margin-bottom:12px;font-size:14px;font-weight:700;display:flex}.subject-dot{background:var(--subj-color,var(--primary));border-radius:50%;width:10px;height:10px}.student-list-item{border-bottom:1px solid var(--border);transition:var(--transition);cursor:pointer;align-items:center;gap:14px;padding:14px 16px;display:flex}.student-list-item:last-child{border-bottom:none}.student-list-item:hover{background:var(--surface)}.student-list-item .info{flex:1;min-width:0}.student-list-item .name{font-size:14px;font-weight:600}.student-list-item .meta{color:var(--text-muted);font-size:12px}.active-dot{background:var(--success);width:8px;height:8px;box-shadow:0 0 6px var(--success);border-radius:50%}.inactive-dot{background:var(--text-muted);border-radius:50%;width:8px;height:8px}.search-wrap{position:relative}.search-wrap .search-icon{color:var(--text-muted);font-size:14px;position:absolute;top:50%;left:12px;transform:translateY(-50%)}.search-input{padding-left:36px!important}.chart-container{width:100%;height:240px}.note-card{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--info-color,var(--primary));border-radius:var(--radius-sm);margin-bottom:10px;padding:12px 14px}.note-card.info{--info-color:var(--secondary)}.note-card.warning{--info-color:var(--warning)}.note-card.success{--info-color:var(--success)}.note-card .note-text{color:var(--text-secondary);font-size:13px}.note-card .note-meta{color:var(--text-muted);margin-top:6px;font-size:11px}.empty-state{text-align:center;color:var(--text-muted);padding:48px 24px}.empty-state .icon{margin-bottom:12px;font-size:48px}.empty-state p{font-size:14px}.mobile-header{background:var(--surface);border-bottom:1px solid var(--border);z-index:90;justify-content:space-between;align-items:center;padding:16px 20px;display:none;position:sticky;top:0}.hamburger{color:var(--text);cursor:pointer;background:0 0;border:none;font-size:22px}.sidebar-overlay{display:none}@media (max-width:768px){.sidebar{width:280px;transform:translate(-100%)}.sidebar.open{transform:translate(0);box-shadow:4px 0 30px #00000080}.sidebar-overlay.open{z-index:99;background:#00000080;display:block;position:fixed;inset:0}.main-content{margin-left:0}.mobile-header{display:flex}.page-header{padding:20px 16px 0}.page-body{padding:16px 16px 32px}.page-title{font-size:20px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.stat-grid{grid-template-columns:1fr 1fr}.auth-card{padding:28px 20px}}@media (max-width:480px){.stat-grid{grid-template-columns:1fr}}