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var(--easing)}h1,h2,h3,h4{margin:0;line-height:1.2;letter-spacing:-.01em}p{margin:0}a{color:var(--color-primary-dark);text-decoration:none}a:hover{text-decoration:underline}button{font:inherit;color:inherit;background:none;border:none;padding:0;cursor:pointer}ul,ol{margin:0;padding:0;list-style:none}img{max-width:100%;display:block}:focus-visible{outline:2px solid var(--color-primary-dark);outline-offset:2px;border-radius:var(--radius-sm)}.brand-mark{font-weight:800;font-size:22px;letter-spacing:-.03em;color:var(--color-primary-dark)}.brand-sub{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.18em;color:var(--color-text-secondary)}.spin{animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);min-height:42px;padding:0 var(--space-5);border-radius:var(--radius-md);font-weight:600;font-size:14px;border:1px solid transparent;transition:background-color var(--duration-fast) var(--easing),border-color var(--duration-fast) var(--easing),color var(--duration-fast) var(--easing),transform var(--duration-fast) var(--easing),box-shadow var(--duration-fast) var(--easing)}.btn:hover{text-decoration:none}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#14302f}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark);color:#fff;box-shadow:0 6px 18px color-mix(in srgb,#54afac 30%,transparent)}.btn-outline{background:var(--color-surface);border-color:var(--color-border);color:var(--color-text)}.btn-outline:hover:not(:disabled){border-color:var(--color-primary);color:var(--color-primary-dark)}.btn-ghost{color:var(--color-text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--color-primary-softer);color:var(--color-primary-dark)}.btn-sm{min-height:34px;padding:0 var(--space-3);font-size:13px;border-radius:var(--radius-sm)}.btn-block{width:100%}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:var(--radius-md);color:var(--color-text-secondary);transition:background-color var(--duration-fast) var(--easing),color var(--duration-fast) var(--easing)}.icon-btn:hover{background:var(--color-primary-softer);color:var(--color-primary-dark)}.icon-btn-danger:hover{background:var(--color-danger-soft);color:var(--color-danger)}.form{display:flex;flex-direction:column;gap:var(--space-4);margin-top:var(--space-5)}.field{display:flex;flex-direction:column;gap:var(--space-2)}.field label,.field-label{font-size:13px;font-weight:600;color:var(--color-text)}.input{width:100%;min-height:44px;padding:0 var(--space-4);font:inherit;color:var(--color-text);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--duration-fast) var(--easing),box-shadow var(--duration-fast) var(--easing)}.input::placeholder{color:var(--color-text-secondary);opacity:.7}.input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-soft)}select.input{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--color-text-secondary) 50%),linear-gradient(135deg,var(--color-text-secondary) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px,5px 5px;background-repeat:no-repeat}.form-error{padding:var(--space-3) var(--space-4);font-size:13px;color:var(--color-danger);background:var(--color-danger-soft);border-radius:var(--radius-sm)}.form-notice{padding:var(--space-3) var(--space-4);font-size:13px;color:var(--color-primary-dark);background:var(--color-primary-soft);border-radius:var(--radius-sm)}.form-link{align-self:center;font-size:13px}.form-link-muted{align-self:center;font-size:12.5px;color:var(--color-text-secondary);text-decoration:underline;background:none;border:none;cursor:pointer;padding:0}.form-link-muted:hover{color:var(--color-primary-dark)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:var(--shadow-sm);transition:box-shadow var(--duration-base) var(--easing),border-color var(--duration-base) var(--easing),transform var(--duration-base) var(--easing)}.section-header{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-4);margin-bottom:var(--space-5)}.section-header h2{font-size:18px;font-weight:700}.section-header p{margin-top:var(--space-1);font-size:13px;color:var(--color-text-secondary)}.empty-state{display:flex;flex-direction:column;align-items:center;gap:var(--space-3);padding:var(--space-8) var(--space-4);text-align:center}.empty-icon{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:50%;color:var(--color-primary-dark);background:var(--color-primary-soft)}.empty-state h3{font-size:16px;font-weight:700}.empty-state p{max-width:380px;font-size:13.5px;color:var(--color-text-secondary)}.empty-state .btn{margin-top:var(--space-2)}.app-shell{min-height:100dvh}.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar-width);display:flex;flex-direction:column;gap:var(--space-6);padding:var(--space-6) var(--space-4);background:var(--color-surface);border-right:1px solid var(--color-border);z-index:30}.sidebar-logo{display:flex;align-items:baseline;gap:var(--space-2);padding:0 var(--space-3)}.sidebar-logo:hover{text-decoration:none}.sidebar-nav{display:flex;flex-direction:column;gap:var(--space-1)}.nav-item{position:relative;display:flex;align-items:center;gap:var(--space-3);padding:10px var(--space-3);border-radius:var(--radius-md);font-size:14px;font-weight:500;color:var(--color-text-secondary);transition:background-color var(--duration-fast) var(--easing),color var(--duration-fast) var(--easing)}.nav-item:hover{text-decoration:none;background:var(--color-primary-softer);color:var(--color-text)}.nav-item.is-active{background:var(--color-primary-soft);color:var(--color-primary-dark);font-weight:600}.nav-item.is-active:before{content:"";position:absolute;left:-12px;top:20%;bottom:20%;width:3px;border-radius:3px;background:var(--color-primary)}.nav-item-btn{width:100%;text-align:left}.nav-section-label{margin:12px 4px 4px;padding:0 8px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted, #9ca3af)}.sidebar-footer{margin-top:auto;padding:var(--space-4);border-radius:var(--radius-md);background:var(--color-primary-softer)}.sidebar-goal-hint{font-size:12.5px;line-height:1.5;color:var(--color-primary-dark);font-weight:500}.app-main{margin-left:var(--sidebar-width);min-height:100dvh;display:flex;flex-direction:column}.page-content{flex:1;width:100%;max-width:1160px;margin:0 auto;padding:var(--space-6) var(--space-8) var(--space-10)}.page.ai-page{flex:1;min-height:0;display:flex;flex-direction:column;gap:var(--space-4)}.page-narrow{max-width:680px}.page-header h2{font-size:26px;font-weight:800}.page-header p{margin-top:var(--space-1);color:var(--color-text-secondary)}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:var(--space-5);min-height:var(--topbar-height);padding:var(--space-3) var(--space-8);background:color-mix(in srgb,var(--color-background) 82%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--color-border)}.topbar-greeting h1{font-size:17px;font-weight:700}.topbar-greeting p{font-size:12.5px;color:var(--color-text-secondary)}.topbar-search{flex:1;max-width:420px;margin-left:auto;display:flex;align-items:center;gap:var(--space-2);padding:0 var(--space-4);min-height:42px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:999px;color:var(--color-text-secondary);transition:border-color var(--duration-fast) var(--easing),box-shadow var(--duration-fast) var(--easing)}.topbar-search:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-soft)}.topbar-search input{flex:1;border:none;background:none;font:inherit;font-size:14px;color:var(--color-text);outline:none;min-width:0}.topbar-search 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var(--space-1);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--color-text-secondary)}.popover-empty{padding:var(--space-3);font-size:13.5px;color:var(--color-text-secondary)}.popover-user{display:flex;flex-direction:column;padding:var(--space-2) var(--space-3) var(--space-3);margin-bottom:var(--space-2);border-bottom:1px solid var(--color-border)}.popover-user strong{font-size:14px}.popover-user span{font-size:12.5px;color:var(--color-text-secondary)}.popover a,.popover button[role=menuitem]{display:flex;align-items:center;gap:var(--space-2);width:100%;padding:9px var(--space-3);border-radius:var(--radius-sm);font-size:13.5px;font-weight:500;color:var(--color-text);text-align:left}.popover a:hover,.popover button[role=menuitem]:hover{background:var(--color-primary-softer);text-decoration:none}.bottom-nav{display:none}.sheet-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:60;background:#0000004d;animation:fade-in var(--duration-fast) var(--easing);display:none}.sheet-overlay.is-open{display:block}@keyframes fade-in{0%{opacity:0}}.sheet{position:fixed;left:0;right:0;bottom:0;padding:var(--space-5) var(--space-5) calc(var(--space-6) + env(safe-area-inset-bottom));background:var(--color-surface);border-radius:var(--radius-xl) var(--radius-xl) 0 0;box-shadow:0 -4px 20px #00000026;z-index:61;border-top:2px solid var(--color-primary);max-height:80vh;overflow-y:auto}@keyframes sheet-up{0%{transform:translateY(24px);opacity:0}}.sheet-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-4)}.sheet-nav{display:flex;flex-direction:column;gap:var(--space-1)}.hero-card{display:flex;flex-direction:column;gap:var(--space-6);padding:var(--space-8);border-radius:var(--radius-xl);background:radial-gradient(1200px 300px at 100% -50%,var(--color-primary-soft),transparent 60%),var(--color-surface)}.hero-text h2{font-size:clamp(22px,3vw,30px);font-weight:800;letter-spacing:-.02em;max-width:560px}.hero-text p{margin-top:var(--space-2);color:var(--color-text-secondary)}.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-4)}.hero-stat{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md)}.hero-stat-icon{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;flex-shrink:0;border-radius:var(--radius-sm);color:var(--color-primary-dark);background:var(--color-primary-soft)}.hero-stat strong{display:block;font-size:16px;font-weight:700}.hero-stat span:not(.hero-stat-icon){font-size:12px;color:var(--color-text-secondary)}.hero-goal-label{display:flex;justify-content:space-between;margin-bottom:var(--space-2);font-size:12.5px;font-weight:600;color:var(--color-text-secondary)}.progress{height:8px;border-radius:999px;background:var(--color-primary-softer);overflow:hidden}.progress-fill{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--color-primary),var(--color-primary-dark));transition:width .3s var(--easing)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-4)}.stat-card{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3)}.stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.stat-label{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--color-text-secondary)}.stat-value{display:block;margin-top:var(--space-1);font-size:24px;font-weight:800;letter-spacing:-.02em}.stat-hint{font-size:12px;color:var(--color-text-secondary)}.stat-icon{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;flex-shrink:0;border-radius:var(--radius-md);color:var(--color-primary-dark);background:var(--color-primary-soft)}.dashboard-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:var(--space-6);align-items:start}.dashboard-col{display:flex;flex-direction:column;gap:var(--space-6);min-width:0}.continue-list{display:flex;flex-direction:column;gap:var(--space-3)}.continue-item{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--duration-fast) var(--easing),box-shadow var(--duration-fast) var(--easing)}.continue-item:hover{border-color:var(--color-primary);box-shadow:var(--shadow-sm)}.continue-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:var(--space-1)}.continue-info strong{font-size:14.5px}.continue-subject{font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--color-primary-dark)}.continue-meta{font-size:12.5px;color:var(--color-text-secondary);margin-bottom:var(--space-1)}.subject-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-3)}.subject-card{display:flex;flex-direction:column;gap:var(--space-2);padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);transition:border-color var(--duration-fast) var(--easing),box-shadow var(--duration-fast) var(--easing),transform var(--duration-fast) var(--easing)}.subject-card:hover{text-decoration:none;border-color:var(--color-primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}.subject-card strong{font-size:14.5px}.subject-card span:last-child{font-size:12.5px;color:var(--color-text-secondary)}.subject-icon{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-md);color:var(--color-primary-dark);background:var(--color-primary-soft)}.task-form{display:flex;flex-direction:column;gap:var(--space-3);padding:var(--space-4);margin-bottom:var(--space-4);border:1px dashed var(--color-border);border-radius:var(--radius-md);background:var(--color-primary-softer)}.task-form-row{display:grid;grid-template-columns:1fr 110px;gap:var(--space-3)}.task-form-actions{display:flex;justify-content:flex-end;gap:var(--space-2)}.task-list{display:flex;flex-direction:column;gap:var(--space-2)}.task-item{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-3);border-radius:var(--radius-md);transition:background-color var(--duration-fast) var(--easing)}.task-item:hover{background:var(--color-primary-softer)}.task-check{display:inline-flex;color:var(--color-border);transition:color var(--duration-fast) var(--easing),transform var(--duration-fast) var(--easing)}.task-check:hover{color:var(--color-primary-dark);transform:scale(1.08)}.task-item.is-done .task-check{color:var(--color-primary-dark)}.task-info{flex:1;min-width:0;display:flex;flex-direction:column}.task-info strong{font-size:14px;font-weight:600;transition:color var(--duration-fast) var(--easing)}.task-info span{font-size:12.5px;color:var(--color-text-secondary)}.task-item.is-done .task-info strong{color:var(--color-text-secondary);text-decoration:line-through}.week-chart{display:grid;grid-template-columns:repeat(7,1fr);gap:var(--space-2);align-items:end;height:140px;padding-top:var(--space-2)}.week-day{display:flex;flex-direction:column;align-items:center;gap:var(--space-2);height:100%}.week-bar-wrap{flex:1;width:100%;display:flex;align-items:flex-end;justify-content:center}.week-bar{width:60%;max-width:26px;border-radius:6px 6px 3px 3px;background:var(--color-primary-softer);transition:height .3s var(--easing)}.week-day.is-today .week-bar{background:var(--color-primary)}.week-label{font-size:11px;font-weight:600;color:var(--color-text-secondary)}.week-day.is-today .week-label{color:var(--color-primary-dark)}.explore-search{display:flex;align-items:center;gap:var(--space-2);max-width:480px;padding:0 var(--space-4);background:var(--color-surface);border:1px solid var(--color-border);border-radius:999px;color:var(--color-text-secondary);transition:border-color var(--duration-fast) var(--easing),box-shadow var(--duration-fast) var(--easing)}.explore-search:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-soft)}.explore-search .input{border:none;box-shadow:none;background:none;padding:0}.subject-grid-lg{grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:var(--space-4)}.subject-card-lg{display:flex;flex-direction:column;gap:var(--space-2)}.subject-card-lg:hover{border-color:var(--color-primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}.subject-card-lg h3{font-size:17px;font-weight:700}.subject-card-lg p{font-size:13.5px;color:var(--color-text-secondary)}.subject-badge{margin-top:auto;align-self:flex-start;padding:4px var(--space-3);font-size:11.5px;font-weight:600;color:var(--color-primary-dark);background:var(--color-primary-soft);border-radius:999px}.accent-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(92px,1fr));gap:var(--space-2);margin-top:var(--space-2)}.accent-swatch{display:flex;flex-direction:column;align-items:center;gap:var(--space-2);padding:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);transition:border-color var(--duration-fast) var(--easing),box-shadow var(--duration-fast) var(--easing),transform var(--duration-fast) var(--easing)}.accent-swatch:hover:not(:disabled){border-color:var(--color-primary);transform:translateY(-1px)}.accent-swatch.is-active{border-color:var(--color-primary-dark);box-shadow:0 0 0 2px var(--color-primary-soft)}.accent-swatch-color{width:32px;height:32px;border-radius:50%;background:var(--swatch);box-shadow:inset 0 0 0 2px 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