:root{--bg-color:#f5f5f7;--card-bg:#fff;--text-primary:#1d1d1f;--text-secondary:#86868b;--border-color:#e5e5ea;--button-bg:#fff;--button-border:#d2d2d7;--button-text:#1d1d1f;--warning-bg:#f5f5f7;--hover:#0000000a;--focus:#0071e3;--link:#06c;--link-hover:#049;--primary-btn-bg:#1d1d1f;--primary-btn-hover:#000;--primary-btn-text:#fff;--card-shadow:0 12px 40px #0000000a;--card-hover-shadow:0 1px 4px #0000000a;--safe-dot:#8ec5a0;--warning-dot:#e8a54b;--critical-dot:#c9342a;--sans:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--ease-swift:cubic-bezier(.16, 1, .3, 1);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font:14px/1.4 var(--sans);letter-spacing:-.01em;color:var(--text-primary);background:var(--bg-color);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}[data-theme=dark]{--bg-color:#000;--card-bg:#1c1c1e;--text-primary:#f5f5f7;--text-secondary:#8e8e93;--border-color:#2c2c2e;--button-bg:#2c2c2e;--button-border:#3a3a3c;--button-text:#fff;--warning-bg:#2c2c2e;--hover:#ffffff0f;--primary-btn-bg:#f5f5f7;--primary-btn-hover:#fff;--primary-btn-text:#000;--card-shadow:0 12px 40px #00000059;--card-hover-shadow:0 1px 4px #00000059;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}*,:before,:after{box-sizing:border-box}body{background-color:var(--bg-color);color:var(--text-primary);margin:0;overflow-x:hidden}#app-loader{z-index:1000;background:var(--bg-color);justify-content:center;align-items:center;transition:opacity .4s cubic-bezier(.16,1,.3,1);display:flex;position:fixed;inset:0}#app-loader.fade-out{opacity:0;pointer-events:none}.app-loader__content{flex-direction:column;align-items:center;gap:14px;display:flex}.app-loader__spinner{border:2px solid var(--button-border);border-top-color:var(--text-primary);border-radius:50%;width:28px;height:28px;animation:.8s linear infinite loaderSpin}.app-loader__text{color:var(--text-secondary);letter-spacing:-.01em;margin:0;font-size:.8125rem;font-weight:500}@keyframes loaderSpin{to{transform:rotate(360deg)}}.app-root{opacity:0;transition:opacity .4s var(--ease-swift)}.app-root.app-ready{opacity:1}#app-dashboard.app-dashboard--enter{animation:swiftUp .45s var(--ease-swift) both}@keyframes swiftUp{0%{opacity:0;filter:blur(2px);transform:translateY(8px)}to{opacity:1;filter:blur();transform:translateY(0)}}button{transition:all .2s var(--ease-swift)}button:active:not(:disabled){opacity:.8;transform:scale(.97)}button:disabled{opacity:.6;cursor:not-allowed}h1,h2,h3{color:var(--text-primary);margin:0;font-weight:600}#app{max-width:1080px;margin:0 auto;padding:16px 16px 32px}.app-header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:16px;padding-bottom:12px;display:flex}.app-header h1{letter-spacing:-.03em;font-size:1.25rem}.app-header__subtitle{color:var(--text-secondary);letter-spacing:0;margin:2px 0 0;font-size:.75rem;font-weight:400}.app-header__actions{flex-shrink:0;align-items:center;gap:6px;display:flex}#theme-toggle-btn{width:32px;height:32px;color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:0;display:inline-flex}#theme-toggle-btn:hover{color:var(--text-primary);background:var(--hover)}#theme-toggle-btn:focus-visible{outline:2px solid var(--focus);outline-offset:2px}#theme-toggle-btn svg{stroke:currentColor;fill:none;stroke-width:1.75px;stroke-linecap:round;stroke-linejoin:round;width:18px;height:18px}#profile-btn{width:32px;height:32px;color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:0;display:inline-flex}#profile-btn:hover{color:var(--text-primary);background:var(--hover)}#profile-btn:focus-visible{outline:2px solid var(--focus);outline-offset:2px}#profile-btn svg{stroke:currentColor;fill:none;stroke-width:1.75px;stroke-linecap:round;stroke-linejoin:round;width:18px;height:18px}.logout-btn{border:1px solid var(--button-border);background:var(--button-bg);color:var(--text-secondary);font:inherit;cursor:pointer;border-radius:980px;padding:6px 12px;font-size:.75rem;font-weight:500}.logout-btn:hover{background:var(--hover);color:var(--button-text)}.logout-btn:focus-visible{outline:2px solid var(--focus);outline-offset:2px}#auth-container{z-index:10;box-sizing:border-box;background-color:var(--bg-color);justify-content:center;align-items:center;margin:0;padding:24px;display:flex;position:fixed;inset:0;overflow-y:auto}.auth-card{background:var(--card-bg);border:1px solid var(--border-color);width:100%;max-width:400px;box-shadow:var(--card-shadow);border-radius:16px;flex-shrink:0;padding:32px 28px 28px}.auth-card h1{letter-spacing:-.03em;text-align:center;margin-bottom:6px;font-size:1.5rem}.auth-subtitle{color:var(--text-secondary);text-align:center;margin:0 0 24px;font-size:.875rem;line-height:1.4}.auth-form{flex-direction:column;gap:14px;display:flex}.auth-form label{color:var(--text-secondary);flex-direction:column;gap:6px;font-size:.75rem;font-weight:500;display:flex}.auth-form input{border:1px solid var(--button-border);font:inherit;background:var(--card-bg);color:var(--text-primary);transition:border-color .2s var(--ease-swift);border-radius:8px;padding:11px 12px;font-size:.875rem}.auth-form input:focus-visible{border-color:var(--focus);outline:none}.apple-primary-btn{background:var(--primary-btn-bg);width:100%;color:var(--primary-btn-text);font:inherit;letter-spacing:-.01em;cursor:pointer;transition:all .2s var(--ease-swift);border:none;border-radius:8px;margin-top:6px;padding:12px 16px;font-size:.875rem;font-weight:600;display:block}.apple-primary-btn:hover{background:var(--primary-btn-hover)}.apple-primary-btn:active{opacity:.92;transform:scale(.99)}.apple-primary-btn:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.auth-toggle-text{color:var(--text-secondary);text-align:center;margin:18px 0 0;font-size:.875rem;line-height:1.5}#auth-toggle-link{cursor:pointer;color:var(--link);transition:color .2s var(--ease-swift);margin-left:4px;font-size:14px;font-weight:500;text-decoration:none}#auth-toggle-link:hover{color:var(--link-hover);text-decoration:underline}.auth-card .form-error{margin:16px 0 0}.modal-overlay{z-index:100;box-sizing:border-box;-webkit-backdrop-filter:blur(8px);opacity:0;transition:opacity .28s var(--ease-swift);background:#0000001a;justify-content:center;align-items:center;padding:24px;display:none;position:fixed;inset:0}.modal-overlay.is-open{opacity:1}.modal-card{border:1px solid var(--border-color);background:var(--card-bg);width:100%;max-width:360px;color:var(--text-primary);box-shadow:var(--card-shadow);opacity:0;transition:transform .28s var(--ease-swift), opacity .28s var(--ease-swift);border-radius:12px;padding:24px;position:relative;transform:scale(.96)}.modal-overlay.is-open .modal-card{opacity:1;transform:scale(1)}.modal-card h3{letter-spacing:-.02em;margin:0 0 16px;font-size:1.0625rem;font-weight:600}.close-btn{width:28px;height:28px;color:var(--text-secondary);cursor:pointer;background:0 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var(--critical-dot);outline-offset:2px}.app-main{flex-direction:column;gap:12px;display:flex}.add-course-panel{background:var(--card-bg);border:1px solid var(--border-color);border-radius:10px;overflow:hidden}.add-course-panel__summary{color:var(--text-secondary);cursor:pointer;-webkit-user-select:none;user-select:none;transition:background .2s var(--ease-swift), color .2s var(--ease-swift), padding .32s var(--ease-swift);padding:12px 14px;font-size:.8125rem;font-weight:500;list-style:none}.add-course-panel[open] .add-course-panel__summary{background:var(--hover);color:var(--text-primary);padding:14px 14px 16px}.add-course-panel__summary::-webkit-details-marker{display:none}.add-course-panel__summary:after{content:"+";float:right;color:var(--text-secondary);transition:transform .25s var(--ease-swift), color .2s var(--ease-swift);font-weight:400;display:inline-block}.add-course-panel[open] 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var(--border-color);background:var(--card-bg);animation:swiftUp .35s var(--ease-swift) both;border-radius:10px;flex-direction:column;gap:10px;padding:12px 12px 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dt{color:var(--text-secondary);letter-spacing:.01em;font-size:.625rem;font-weight:500}.course-card__trend{color:var(--text-secondary);background:var(--warning-bg);border:1px solid var(--border-color);border-radius:6px;margin:0;padding:6px 8px;font-size:.6875rem;font-weight:500;line-height:1.35}.course-card__action{border:1px solid var(--button-border);background:var(--button-bg);width:100%;color:var(--button-text);font:inherit;letter-spacing:-.01em;cursor:pointer;border-radius:8px;margin-top:auto;padding:7px 10px;font-size:.75rem;font-weight:500}.course-card__action:hover{background:var(--hover);border-color:var(--button-border)}.course-card__action:focus-visible{outline:2px solid var(--focus);outline-offset:2px}@media (width<=640px){#app{padding:12px 12px 24px}.course-form{grid-template-columns:1fr 1fr}.course-form input:first-child,.course-form__submit{grid-column:1/-1}.courses-grid{grid-template-columns:1fr}}