:root{--color-primary: #6441a5;--color-primary-light: #9146ff;--color-primary-dark: #4b367c;--color-accent: #ff5722;--color-accent-light: #ff7e55;--color-accent-dark: #e64a19;--color-background: #ffffff;--color-background-secondary: #f8f9fa;--color-background-tertiary: #f1f3f5;--color-text: #333333;--color-text-secondary: #666666;--color-text-tertiary: #999999;--color-border: #e9ecef;--color-border-light: #f1f3f5;--color-border-dark: #ced4da;--color-success: #4caf50;--color-warning: #ff9800;--color-error: #f44336;--color-info: #2196f3;--shadow-small: 0 2px 4px rgba(0, 0, 0, .1);--shadow-medium: 0 4px 6px rgba(0, 0, 0, .1);--shadow-large: 0 10px 15px rgba(0, 0, 0, .1);--radius-small: 4px;--radius-medium: 8px;--radius-large: 12px;--transition-speed: .2s}[data-theme=dark]{--color-primary: #9146ff;--color-primary-light: #b490ff;--color-primary-dark: #6441a5;--color-accent: #ff5722;--color-accent-light: #ff7e55;--color-accent-dark: #e64a19;--color-background: #18181b;--color-background-secondary: #1f1f23;--color-background-tertiary: #26262c;--color-text: #efeff1;--color-text-secondary: #adadb8;--color-text-tertiary: #848494;--color-border: #3a3a3d;--color-border-light: #4a4a4d;--color-border-dark: #2a2a2d;--color-success: #4caf50;--color-warning: #ff9800;--color-error: #f44336;--color-info: #2196f3;--shadow-small: 0 2px 4px rgba(0, 0, 0, .3);--shadow-medium: 0 4px 6px rgba(0, 0, 0, .3);--shadow-large: 0 10px 15px rgba(0, 0, 0, .3)}@media (prefers-color-scheme: dark){[data-theme=system]{--color-primary: #9146ff;--color-primary-light: #b490ff;--color-primary-dark: #6441a5;--color-accent: #ff5722;--color-accent-light: #ff7e55;--color-accent-dark: #e64a19;--color-background: #18181b;--color-background-secondary: #1f1f23;--color-background-tertiary: #26262c;--color-text: #efeff1;--color-text-secondary: #adadb8;--color-text-tertiary: #848494;--color-border: #3a3a3d;--color-border-light: #4a4a4d;--color-border-dark: #2a2a2d;--color-success: #4caf50;--color-warning: #ff9800;--color-error: #f44336;--color-info: #2196f3;--shadow-small: 0 2px 4px rgba(0, 0, 0, .3);--shadow-medium: 0 4px 6px rgba(0, 0, 0, .3);--shadow-large: 0 10px 15px rgba(0, 0, 0, .3)}}:root{--header-height: 60px;--sidebar-width: 250px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;color:var(--color-text);background-color:var(--color-background);line-height:1.6;transition:background-color var(--transition-speed),color var(--transition-speed)}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-speed)}a:hover{text-decoration:underline;color:var(--color-primary-dark)}button{cursor:pointer;border:none;background-color:var(--color-primary);color:#fff;padding:8px 16px;border-radius:var(--radius-small);font-size:14px;transition:background-color var(--transition-speed)}button:hover{background-color:var(--color-primary-dark)}.container{max-width:1200px;margin:0 auto;padding:0 20px}.card{background-color:var(--color-background);border-radius:var(--radius-medium);box-shadow:var(--shadow-small);overflow:hidden;transition:box-shadow var(--transition-speed),background-color var(--transition-speed)}.card:hover{box-shadow:var(--shadow-medium)}.btn{display:inline-block;padding:.5rem 1rem;font-size:1rem;font-weight:500;text-align:center;text-decoration:none;cursor:pointer;border:none;border-radius:var(--radius-small);transition:background-color var(--transition-speed),color var(--transition-speed)}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-dark)}.btn-secondary{background-color:var(--color-background-secondary);color:var(--color-text)}.btn-secondary:hover{background-color:var(--color-background-tertiary)}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.text-center{text-align:center}.mt-4{margin-top:1rem}.mb-4{margin-bottom:1rem}.p-4{padding:1rem}@media (max-width: 768px){:root{--sidebar-width: 0px}.container{padding:0 10px}}.theme-toggle{display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid rgba(0,0,0,.1);border-radius:20px;padding:5px 12px;font-size:.85rem;cursor:pointer;transition:all .2s ease;margin-left:10px;height:32px}.theme-toggle:hover{background-color:#0000000d}.theme-toggle__icon{margin-right:6px;font-size:1rem}.theme-toggle__name{text-transform:capitalize}[data-theme=dark] .theme-toggle{border-color:#fff3;color:#fff}[data-theme=dark] .theme-toggle:hover{background-color:#ffffff1a}@media (max-width: 768px){.theme-toggle__name{display:none}.theme-toggle{padding:5px 8px}.theme-toggle__icon{margin-right:0}}.header{background-color:var(--color-background-secondary);box-shadow:0 2px 10px #0000001a;height:var(--header-height);position:sticky;top:0;z-index:100;border-bottom:3px solid var(--color-accent)}.header__content{display:flex;align-items:center;justify-content:space-between;height:100%}.header__logo{font-size:24px;font-weight:700;display:flex;align-items:center}.header__logo-icon{margin-right:8px;font-size:28px}.header__logo-link{color:var(--color-primary);text-decoration:none;display:flex;align-items:center;transition:color .2s ease}.header__logo-link:hover{text-decoration:none;color:var(--color-accent)}.header__search{display:flex;flex:1;max-width:400px;margin:0 20px}.header__search-input{flex:1;padding:8px 12px;border:1px solid var(--color-border);border-radius:4px 0 0 4px;font-size:14px;background-color:var(--color-background);color:var(--color-text)}.header__search-button{border-radius:0 4px 4px 0;background-color:var(--color-accent);color:#fff;transition:background-color .2s ease}.header__search-button:hover{background-color:var(--color-accent-dark)}.header__nav{display:flex;gap:20px;align-items:center}.header__nav-item{color:var(--color-text);text-decoration:none;font-weight:500;transition:color .2s ease;padding:5px 10px;border-radius:4px}.header__nav-item:hover{color:var(--color-accent);background-color:var(--color-background-tertiary);text-decoration:none}.header__nav-dropdown{position:relative}.header__nav-item--dropdown{cursor:pointer;display:flex;align-items:center}.header__nav-item--dropdown:after{content:"▼";margin-left:5px;font-size:10px;transition:transform .2s ease}.header__nav-dropdown:hover .header__nav-item--dropdown:after{transform:rotate(180deg)}.header__nav-dropdown-menu{position:absolute;top:100%;left:50%;transform:translate(-50%);background:var(--color-background-secondary);border:1px solid var(--color-border);border-radius:8px;box-shadow:0 4px 15px #0000001a;min-width:220px;opacity:0;visibility:hidden;transition:all .2s ease;z-index:1000;margin-top:5px}.header__nav-dropdown:hover .header__nav-dropdown-menu{opacity:1;visibility:visible}.header__nav-dropdown-item{display:block;padding:10px 15px;color:var(--color-text);text-decoration:none;font-size:14px;transition:all .2s ease;border-bottom:1px solid var(--color-border)}.header__nav-dropdown-item:last-child{border-bottom:none}.header__nav-dropdown-item:hover{background-color:var(--color-background-tertiary);color:var(--color-accent);text-decoration:none}@media (max-width: 768px){.header__search{display:none}.header__logo{font-size:20px}.header__logo-icon{font-size:24px}.header__nav{gap:10px}.header__nav-item{padding:3px 6px;font-size:14px}.header__nav-dropdown-menu{left:0;transform:none;min-width:180px}.header__nav-dropdown-item{padding:8px 12px;font-size:13px}}.sidebar{width:var(--sidebar-width);height:100%;position:fixed;top:var(--header-height);left:0;background-color:var(--color-background-secondary);border-right:1px solid var(--color-border);overflow-y:auto;transition:background-color var(--transition-speed),border-color var(--transition-speed)}.sidebar__content{padding:20px}.sidebar__branding{display:flex;align-items:center;border-bottom:2px solid var(--color-accent);text-decoration:none;color:inherit;transition:all var(--transition-speed);border-radius:var(--radius-small);padding:10px 8px 15px;margin:0 -8px 20px}.sidebar__branding:hover{background-color:var(--color-background-tertiary);text-decoration:none;color:inherit;transform:translateY(-1px)}.sidebar__logo-icon{font-size:24px;margin-right:10px}.sidebar__logo-text{font-size:18px;font-weight:700;color:var(--color-primary);margin:0}.sidebar__title{font-size:1.1rem;margin-bottom:15px;color:var(--color-text);transition:color var(--transition-speed);display:flex;align-items:center}.sidebar__loading,.sidebar__error{padding:10px;margin-bottom:15px;font-size:.9rem;color:var(--color-text-secondary);transition:color var(--transition-speed)}.sidebar__error{color:var(--color-error)}.sidebar__categories{list-style:none;margin-bottom:30px}.sidebar__category{margin-bottom:5px}.sidebar__category-link{display:flex;align-items:center;padding:8px 12px;border-radius:var(--radius-small);color:var(--color-text-secondary);font-size:.95rem;text-decoration:none;transition:all var(--transition-speed)}.sidebar__category-icon{margin-right:8px;font-style:normal}.sidebar__category-link:hover{background-color:var(--color-background-tertiary);color:var(--color-text);text-decoration:none}.sidebar__category-link--active{background-color:var(--color-primary);color:#fff!important}.sidebar__category-link--active .sidebar__category-icon{color:#fff}.sidebar__nav{margin-bottom:30px}.sidebar__nav-list{list-style:none}.sidebar__nav-item{margin-bottom:5px}.sidebar__nav-link{display:flex;align-items:center;padding:10px 12px;border-radius:var(--radius-small);color:var(--color-text-secondary);font-size:.95rem;text-decoration:none;transition:all var(--transition-speed);position:relative}.sidebar__nav-link:hover{background-color:var(--color-background-tertiary);color:var(--color-text);text-decoration:none}.sidebar__nav-link--active{background-color:var(--color-background-tertiary);color:var(--color-accent)!important;font-weight:500}.sidebar__icon{margin-right:10px;font-style:normal}.sidebar__nav-badge{position:absolute;right:12px;top:50%;transform:translateY(-50%);font-size:1rem;line-height:1}.sidebar__footer{padding-top:20px;border-top:1px solid var(--color-border);font-size:.8rem;color:var(--color-text-tertiary);transition:color var(--transition-speed),border-color var(--transition-speed)}.sidebar__tagline{margin-top:5px;font-style:italic;color:var(--color-text-tertiary)}@media (max-width: 768px){.sidebar{width:100%;position:fixed;top:var(--header-height);left:0;height:auto;max-height:0;overflow:hidden;transition:max-height .3s ease-in-out,background-color var(--transition-speed),border-color var(--transition-speed);z-index:10}.sidebar--open{max-height:80vh;overflow-y:auto}.sidebar__content{padding:15px}.sidebar__branding{display:none}}.layout{display:flex;flex-direction:column;min-height:100vh}.layout__content{display:flex;flex:1}.layout__main{flex:1;padding:20px;overflow-y:auto;min-height:calc(100vh - var(--header-height));margin-left:var(--sidebar-width);transition:margin-left .3s}@media (max-width: 768px){.layout__main{margin-left:0}}