:root{--color-primary: #5AB2BA;--color-primary-hover: #489da5;--color-accent: #88C0A6;--color-bg: #F9FAFB;--color-bg-card: #FFFFFF;--color-text-main: #1F2937;--color-text-muted: #4B5563;--color-border: #E5E7EB;--color-success: #34D399;--color-danger: #EF4444;--color-warning: #F59E0B;--color-bg-task-completed: #ECFDF5;--color-border-task-completed: rgba(5, 150, 105, .2);--timer-text-color: #000000;--timer-subtext-color: #4B5563;--timer-shadow: none;--gradient-primary: linear-gradient(135deg, #5AB2BA 0%, #489da5 100%);--gradient-accent: linear-gradient(135deg, #88C0A6 0%, #5AB2BA 100%);--gradient-subtle: linear-gradient(135deg, rgba(90, 178, 186, .05) 0%, rgba(136, 192, 166, .05) 100%);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12);--shadow-focus: 0 0 0 3px rgba(90, 178, 186, .15);--shadow-glow: 0 0 20px rgba(90, 178, 186, .2);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: 1rem;--radius-xl: 1.25rem;--color-bg-subtle: #F1F5F9;--font-family: "Inter", system-ui, sans-serif;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .35s cubic-bezier(.4, 0, .2, 1)}[data-theme=dark]{--color-bg: #0F172A;--color-bg-card: #1E293B;--color-bg-alt: #334155;--color-text-main: #F1F5F9;--color-text-muted: #94A3B8;--color-border: #334155;--color-border-subtle: rgba(255, 255, 255, .05);--color-bg-task-completed: rgba(5, 150, 105, .15);--color-border-task-completed: rgba(5, 150, 105, .2);--timer-text-color: #FFFFFF;--timer-subtext-color: #E2E8F0;--timer-shadow: 0 2px 10px rgba(0, 0, 0, .5);--gradient-subtle: linear-gradient(135deg, rgba(90, 178, 186, .05) 0%, rgba(136, 192, 166, .05) 100%);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 8px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 12px 24px rgba(0, 0, 0, .5);--shadow-glow: 0 0 20px rgba(90, 178, 186, .15);--shadow-focus: 0 0 0 3px rgba(90, 178, 186, .25)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--color-bg);color:var(--color-text-main);line-height:1.5;-webkit-font-smoothing:antialiased;transition:background-color var(--transition-base),color var(--transition-base)}button{cursor:pointer;border:none;font-family:inherit;transition:all var(--transition-base)}button:active{transform:scale(.98)}input,select,textarea{font-family:inherit;transition:all var(--transition-base);background-color:var(--color-bg-card);color:var(--color-text-main);border:1px solid var(--color-border)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:var(--shadow-focus)}::placeholder{color:var(--color-text-muted)!important;opacity:.6}[data-theme=dark] select option{background-color:var(--color-bg-card);color:var(--color-text-main)}.app-container{max-width:480px;margin:0 auto;min-height:100vh;background-color:var(--color-bg);position:relative;box-shadow:0 0 20px #0000000d}@keyframes fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.8}}@keyframes gradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.animate-fade-in{animation:fadeIn var(--transition-base) ease-out}.animate-slide-in{animation:slideIn var(--transition-base) ease-out}.hide-scrollbar::-webkit-scrollbar{display:none}.hide-scrollbar{-ms-overflow-style:none;scrollbar-width:none}.hover-lift{transition:transform .2s ease,box-shadow .2s ease}.hover-lift:hover{transform:translateY(-2px);box-shadow:0 4px 8px #0000001a}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.animate-scale-in{animation:scaleIn .2s ease-out forwards}.btn-icon-touch{min-height:44px;min-width:44px;display:flex;align-items:center;justify-content:center}.day-hours-badge{font-size:.75rem;font-weight:500;color:var(--color-text-muted);white-space:nowrap}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background-color:#fffffff2;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid rgba(0,0,0,.04);box-shadow:0 -2px 12px #00000005;z-index:100;padding-bottom:env(safe-area-inset-bottom,0);transition:all .3s ease}[data-theme=dark] .bottom-nav{background-color:#0f172af2;border-top:1px solid rgba(255,255,255,.1);box-shadow:0 -2px 12px #0000004d}.bottom-nav-container{max-width:480px;width:100%;margin:0 auto;display:flex;justify-content:space-around;align-items:center;height:64px;padding:0 .5rem}.nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;text-decoration:none;color:var(--color-text-muted);font-size:.75rem;font-weight:500;gap:4px;padding:.5rem 1rem;border-radius:20px;transition:all .2s cubic-bezier(.4,0,.2,1);position:relative;min-width:68px}.nav-item.active{color:var(--color-primary);background-color:#5ab2ba14}.nav-item.nav-today.active{color:var(--color-primary)}.nav-item.active .nav-label{font-weight:600;color:var(--color-primary)}.nav-icon-wrapper{display:flex;align-items:center;justify-content:center;transition:transform .2s cubic-bezier(.4,0,.2,1)}.nav-item.active .nav-icon-wrapper{transform:scale(1.05) translateY(-2px)}.nav-label{transition:transform .2s ease,opacity .2s ease;letter-spacing:-.01em}.nav-item.active .nav-label{transform:translateY(-2px)}.nav-item:active .nav-icon-wrapper{transform:scale(.95)}@media(hover:hover){.nav-item:hover:not(.active){background-color:#00000005;color:var(--color-text-main)}}.calendar-page-container{display:flex;flex:1;min-height:0;flex-direction:row;height:calc(100vh - 64px);background-color:var(--color-bg);overflow:hidden}.calendar-main-area{flex:1;display:flex;flex-direction:column;background-color:var(--color-bg);border-right:1px solid var(--color-border);padding:1.5rem;overflow-y:auto}.calendar-side-panel{width:380px;display:flex;flex-direction:column;background-color:var(--color-bg-secondary);border-left:1px solid var(--color-border);overflow:hidden;flex-shrink:0}.calendar-header{display:flex;align-items:center;justify-content:space-between;padding:1.5rem 2rem 1rem;flex-shrink:0;border-bottom:1px solid var(--color-border)}.calendar-legend{display:flex;gap:1rem;font-size:.75rem;font-weight:500;color:var(--color-text-muted)}.calendar-week-days{display:grid;grid-template-columns:repeat(7,1fr);padding:.75rem 0;text-align:center;flex-shrink:0;border-bottom:1px solid var(--color-border);background-color:var(--color-bg-alt)}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);grid-template-rows:repeat(6,1fr);height:100%}@media(max-width:900px){.calendar-page-container{flex-direction:column;overflow-y:auto;min-height:0}.calendar-main-area{flex:none;height:auto;min-height:450px;border-right:none;border-bottom:1px solid var(--color-border)}.calendar-side-panel{width:100%;border-left:none;flex:none;height:auto;border-top:1px solid var(--color-border);min-height:300px}.calendar-header{padding:1rem;flex-direction:column;gap:1rem;align-items:stretch}.calendar-header>div:first-child{justify-content:center}.calendar-header>div:last-child{justify-content:space-between}}.overview-grid{display:grid;grid-template-columns:1fr;gap:1.5rem}@media(min-width:768px){.overview-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:1100px){.overview-grid{grid-template-columns:repeat(3,1fr)}}.span-2{grid-column:span 1}@media(min-width:768px){.span-md-2{grid-column:span 2}}.profile-page{padding:1.5rem 1.5rem 6rem;max-width:1200px;margin:0 auto}.profile-stream{display:grid;grid-template-columns:1fr;gap:1.25rem}@media(min-width:768px){.profile-stream{grid-template-columns:repeat(2,1fr)}}@media(min-width:1100px){.profile-stream{grid-template-columns:repeat(3,1fr)}}.profile-card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:16px;padding:1.25rem;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease}.identity-card{display:flex;align-items:center;gap:1rem;padding:1rem;border-left:4px solid var(--color-primary)}.identity-avatar{width:48px;height:48px;background:var(--color-bg-alt);color:var(--color-text-muted);border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid var(--color-border)}.identity-info{display:flex;flex-direction:column}.identity-name{font-size:1.1rem;font-weight:700;color:var(--color-text-main)}.identity-status{font-size:.75rem;color:#16a34a;display:flex;align-items:center;gap:4px;font-weight:600}.exam-focus-card{background:linear-gradient(135deg,var(--color-bg-card) 0%,var(--color-bg-alt) 100%);border-color:var(--color-primary);position:relative;overflow:hidden}.exam-focus-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.card-label{font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-muted);font-weight:700}.exam-main-display{display:flex;flex-direction:column;gap:.5rem}.exam-title-large{font-size:1.5rem;font-weight:800;color:var(--color-primary);line-height:1.2}.exam-countdown-row{font-size:.9rem;color:var(--color-text-main);display:flex;align-items:center;gap:6px;font-weight:500}.exam-countdown-row strong{color:var(--color-primary);background:#5ab2ba1a;padding:2px 6px;border-radius:4px}.snapshot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem;margin-top:.5rem}.snapshot-item{background:var(--color-bg-alt);padding:.75rem;border-radius:8px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:4px}.snapshot-value{font-size:1.1rem;font-weight:700;color:var(--color-text-main)}.snapshot-label{font-size:.65rem;color:var(--color-text-muted);text-transform:uppercase;font-weight:600}.control-group{display:flex;flex-direction:column;gap:1rem}.control-row{display:flex;justify-content:space-between;align-items:flex-start;padding:.5rem 0;border-bottom:1px solid var(--color-border-subtle)}.control-row:last-child{border-bottom:none}.control-label{display:flex;flex-direction:column}.control-title{font-size:.9rem;font-weight:600;color:var(--color-text-main)}.control-subtitle{font-size:.75rem;color:var(--color-text-muted)}.control-input{display:flex;align-items:center;gap:.5rem}.segmented-control{background:var(--color-bg-alt);padding:3px;border-radius:8px;display:flex;gap:2px}.segment-btn{padding:4px 10px;font-size:.75rem;border-radius:6px;border:none;background:transparent;color:var(--color-text-muted);cursor:pointer;font-weight:600;transition:all .2s}.segment-btn.active{background:var(--color-bg-card);color:var(--color-primary);box-shadow:0 1px 2px #0000000d}.action-list{display:flex;flex-direction:column;gap:.25rem}.action-item{display:flex;align-items:center;gap:.75rem;padding:.75rem;border-radius:8px;cursor:pointer;transition:background .1s;color:var(--color-text-main);font-size:.9rem}.action-item:hover{background:var(--color-bg-alt)}.action-item.danger{color:var(--color-danger)}.action-item.danger:hover{background:#ef44440d}.plan-status-badge{font-size:.65rem;font-weight:800;padding:2px 10px;border-radius:20px;text-transform:uppercase}.premium-indicator{background:#5ab2ba1a;color:var(--color-primary);border:1px solid rgba(90,178,186,.2)}.free-indicator{background:#16a34a1a;color:var(--color-success, #16A34A);border:1px solid rgba(22,163,74,.2)}.profile-section-title{font-size:1.1rem;font-weight:700;color:var(--color-text-main);margin:2rem 0 1rem;padding-bottom:.5rem;border-bottom:1px solid var(--color-border)}.profile-section-title:first-child{margin-top:0}.profile-account-card{display:flex;flex-direction:column;align-items:center;text-align:center;gap:var(--spacing-md)}.profile-avatar-large{width:56px;height:56px;background:var(--color-bg-alt);border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid var(--color-border);color:var(--color-text-muted)}.profile-identity-info{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-xs)}.profile-name{font-size:1.2rem;font-weight:800;margin:0;color:var(--color-text-main)}.profile-email{font-size:.8rem;color:var(--color-text-muted)}.profile-sync-status{font-size:.65rem;font-weight:600;margin-top:4px;display:flex;align-items:center;justify-content:center;gap:4px}.profile-sync-status.cloud{color:var(--color-success, #16A34A)}.profile-sync-status.local{color:var(--color-text-muted)}.profile-divider{width:100%;height:1px;background:var(--color-border);margin:var(--spacing-sm) 0}.profile-plan-details{flex:1;display:flex;flex-direction:column;gap:var(--spacing-md);width:100%}.profile-plan-header{display:flex;justify-content:space-between;align-items:center}.profile-plan-title{font-size:1.2rem;font-weight:700;margin:0}.profile-plan-date{font-size:.75rem;margin:0}.profile-plan-date.expired{color:var(--color-danger)}.profile-plan-date.active{color:var(--color-text-muted)}.profile-progress-ring{position:relative;width:120px;height:120px;display:flex;align-items:center;justify-content:center}.profile-progress-text{position:absolute;display:flex;flex-direction:column;align-items:center}.profile-progress-days{font-size:1.8rem;font-weight:900;color:var(--color-primary);line-height:1}.profile-progress-label{font-size:.55rem;font-weight:700;color:var(--color-text-muted);text-transform:uppercase}.profile-exam-target{margin-top:var(--spacing-sm)}.profile-exam-target-title{font-size:.85rem;font-weight:700;color:var(--color-text-main)}.profile-exam-target-date{font-size:.7rem;color:var(--color-text-muted)}.profile-trend-footer{margin-top:var(--spacing-md);padding-top:var(--spacing-md);border-top:1px solid var(--color-border)}.profile-toggle{position:relative;display:inline-block;width:44px;height:24px;flex-shrink:0}.profile-toggle-input{opacity:0;width:0;height:0;position:absolute}.profile-toggle-slider{position:absolute;cursor:pointer;inset:0;border-radius:24px;transition:all .3s ease}.profile-toggle-knob{position:absolute;height:18px;width:18px;bottom:3px;background-color:#fff;border-radius:50%;transition:all .3s ease}.profile-range-selector{display:flex;align-items:center;gap:var(--spacing-md);flex:1;justify-content:flex-end}.profile-range-input{accent-color:var(--color-primary);cursor:pointer;flex:1;max-width:120px}.profile-range-value{min-width:60px;text-align:right;font-size:.9rem;font-weight:700;color:var(--color-text-main)}.profile-select-input{padding:6px 12px;border-radius:var(--radius-sm);border:1px solid var(--color-border);background:var(--color-bg-alt);color:var(--color-text-main);font-size:.85rem}.profile-theme-toggle{cursor:pointer;display:flex;align-items:center;gap:var(--spacing-sm);padding:8px 16px;border-radius:var(--radius-md);background:var(--color-bg-alt);border:1px solid var(--color-border);color:var(--color-text-main);transition:all .2s}.profile-theme-toggle-text{font-size:.85rem;font-weight:600}.profile-action-icon-group{flex-direction:column;align-items:flex-start;gap:4px}.profile-action-title-row{display:flex;align-items:center;gap:8px}.profile-action-title-text{font-weight:600}.profile-action-subtitle{font-size:.75rem;color:var(--color-text-muted);padding-left:24px}.profile-delete-btn.confirming{background:#dc26261a;border:1px solid rgba(220,38,38,.3)}.profile-delete-btn.confirming>span,.profile-delete-btn.confirming>svg{color:var(--color-danger);font-weight:700}.upgrade-btn{width:100%;padding:.8rem;border-radius:var(--radius-lg);background-color:var(--color-primary);color:#fff;border:none;font-size:.9rem;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:0 4px 12px #5ab2ba4d;transition:all .2s}.upgrade-btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px #5ab2ba66}.active-plan-badge{width:100%;padding:.7rem;border-radius:var(--radius-md);background-color:var(--color-bg-alt);color:var(--color-primary);border:1px solid var(--color-primary);font-size:.85rem;font-weight:600;text-align:center}.trend-btn{width:100%;display:flex;align-items:center;justify-content:center;gap:8px;padding:.75rem;border-radius:var(--radius-lg);background:var(--color-bg-alt);color:var(--color-text-main);border:none;cursor:pointer;font-weight:600;font-size:.9rem;transition:background .2s}.trend-btn:hover{background:var(--color-border)}.modal-overlay{position:fixed;inset:0;background-color:#00000080;z-index:1000;display:flex;align-items:center;justify-content:center}.modal-content{background-color:var(--color-bg-card);padding:1.5rem;border-radius:var(--radius-lg);max-width:90%;width:320px;box-shadow:var(--shadow-lg);text-align:center}.theme-row-minimal{display:flex;justify-content:space-between;align-items:center;padding:.5rem 0}@media(max-width:480px){.profile-page{padding:1rem 1rem 6rem}.subscription-card>div{flex-direction:column;align-items:flex-start!important;gap:.75rem}.subscription-card button{width:100%;text-align:center;margin-top:.25rem;min-height:44px}.control-row{flex-direction:column;gap:.75rem;align-items:stretch}.segmented-control{width:100%;justify-content:space-between}.segment-btn{flex:1;text-align:center;padding:8px 10px;min-height:40px}.exam-title-large{font-size:1.25rem;word-break:break-word}.snapshot-item{padding:.5rem}.snapshot-value{font-size:1rem}.snapshot-label{font-size:.6rem}}@media(max-width:380px){.snapshot-grid{grid-template-columns:repeat(2,1fr)}}