.header{position:sticky;top:0;z-index:100;background-color:var(--color-white);border-bottom:1px solid var(--color-border);height:var(--header-height)}.header__inner{display:flex;align-items:center;height:100%;gap:var(--spacing-xl)}.header__logo{font-size:var(--font-size-xl);font-weight:700;color:var(--color-primary);text-decoration:none;flex-shrink:0}.header__logo:hover{text-decoration:none;opacity:.8}.header__nav{display:flex;align-items:center;gap:var(--spacing-lg);flex:1}.header__nav-link{color:var(--color-text-secondary);font-size:var(--font-size-sm);font-weight:500;transition:color .2s ease;text-decoration:none}.header__nav-link:hover{color:var(--color-primary);text-decoration:none}.header__admin-link{margin-left:auto;font-size:var(--font-size-sm);padding:var(--spacing-xs) var(--spacing-md);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text-secondary);text-decoration:none;transition:all .2s ease}.header__admin-link:hover{border-color:var(--color-primary);color:var(--color-primary);text-decoration:none}@media(max-width:768px){.header__inner{gap:var(--spacing-md)}.header__nav{gap:var(--spacing-sm)}.header__nav-link{font-size:var(--font-size-xs)}.header__admin-link{font-size:var(--font-size-xs);padding:var(--spacing-xs) var(--spacing-sm)}}@media(max-width:480px){.header__nav{gap:var(--spacing-xs)}.header__nav-link:not(:first-child){display:none}}.footer{background-color:var(--color-white);border-top:1px solid var(--color-border);padding:var(--spacing-xl) 0;margin-top:auto}.footer__inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:var(--spacing-md)}.footer__copyright{font-size:var(--font-size-sm);color:var(--color-text-muted);margin:0}.footer__nav{display:flex;gap:var(--spacing-lg)}.footer__link{font-size:var(--font-size-sm);color:var(--color-text-secondary);text-decoration:none}.footer__link:hover{color:var(--color-primary);text-decoration:underline}@media(max-width:768px){.footer__inner{flex-direction:column;text-align:center}.footer__nav{justify-content:center}}.layout{display:flex;flex-direction:column;min-height:100vh}.layout__main{flex:1;padding:var(--spacing-2xl) 0}@media(max-width:768px){.layout__main{padding:var(--spacing-lg) 0}}:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-light: #dbeafe;--color-secondary: #64748b;--color-secondary-hover: #475569;--color-success: #16a34a;--color-warning: #d97706;--color-error: #dc2626;--color-error-light: #fef2f2;--color-white: #ffffff;--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text-primary: #0f172a;--color-text-secondary: #475569;--color-text-muted: #94a3b8;--font-family-base: "Segoe UI", "Helvetica Neue", Arial, sans-serif;--font-family-heading: "Segoe UI", "Helvetica Neue", Arial, sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-size-4xl: 2.25rem;--line-height-tight: 1.25;--line-height-base: 1.6;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--spacing-3xl: 4rem;--radius-sm: .25rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -4px rgba(0, 0, 0, .1);--header-height: 64px;--max-width: 1200px;--sidebar-width: 260px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-family-base);font-size:var(--font-size-base);line-height:var(--line-height-base);color:var(--color-text-primary);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:var(--color-primary);text-decoration:none;transition:color .2s ease}a:hover{color:var(--color-primary-hover);text-decoration:underline}h1,h2,h3,h4,h5,h6{font-family:var(--font-family-heading);line-height:var(--line-height-tight);color:var(--color-text-primary)}h1{font-size:var(--font-size-4xl);margin-bottom:var(--spacing-lg)}h2{font-size:var(--font-size-3xl);margin-bottom:var(--spacing-md)}h3{font-size:var(--font-size-2xl);margin-bottom:var(--spacing-md)}p{margin-bottom:var(--spacing-md)}img{max-width:100%;height:auto;display:block}ul,ol{list-style:none}button{cursor:pointer;font-family:inherit;font-size:inherit}input,textarea,select{font-family:inherit;font-size:inherit}.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--spacing-lg)}@media(max-width:768px){.container{padding:0 var(--spacing-md)}h1{font-size:var(--font-size-2xl)}h2{font-size:var(--font-size-xl)}h3{font-size:var(--font-size-lg)}html{font-size:15px}}@media(max-width:480px){html{font-size:14px}.container{padding:0 var(--spacing-sm)}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}