*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-bg: #ffffff;--color-bg-secondary: #f9fafb;--color-text-primary: #111827;--color-text-secondary: #6b7280;--color-border: #e5e7eb;--color-accent: #2563eb;--color-accent-hover: #1d4ed8;--color-bg-dark: #111827;--color-bg-secondary-dark: #1f2937;--color-text-primary-dark: #f9fafb;--color-text-secondary-dark: #9ca3af;--color-border-dark: #374151;--color-accent-dark: #3b82f6;--color-accent-hover-dark: #60a5fa;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--text-4xl: 2.25rem;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--space-16: 64px;--space-20: 80px;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1);--transition-fast: .15s ease-in-out;--transition-base: .2s ease-in-out;--transition-slow: .3s ease-in-out;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--container-max: 1280px;--container-padding: 24px;--header-height: 64px}[data-theme=dark]{--color-bg: var(--color-bg-dark);--color-bg-secondary: var(--color-bg-secondary-dark);--color-text-primary: var(--color-text-primary-dark);--color-text-secondary: var(--color-text-secondary-dark);--color-border: var(--color-border-dark);--color-accent: var(--color-accent-dark);--color-accent-hover: var(--color-accent-hover-dark)}html{font-family:var(--font-sans);font-size:16px;line-height:1.6;color:var(--color-text-primary);background-color:var(--color-bg);scroll-behavior:smooth}body{overflow-x:hidden;transition:background-color var(--transition-base),color var(--transition-base)}h1,h2,h3,h4,h5,h6{font-family:var(--font-serif);font-weight:700;line-height:1.3;letter-spacing:-.02em;margin-bottom:var(--space-4);color:var(--color-text)}h1{font-size:3rem}h2{font-size:2.25rem}h3{font-size:1.75rem}h4{font-size:1.375rem}h5{font-size:1.125rem}h6{font-size:1rem}@media(max-width:768px){h1{font-size:2.25rem}h2{font-size:1.875rem}h3{font-size:1.5rem}}p{margin-bottom:var(--space-4);line-height:1.7;letter-spacing:.01em}a{color:var(--color-primary-600);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-primary-700);text-decoration:underline}a:focus-visible{outline:2px solid var(--color-primary-500);outline-offset:2px;border-radius:var(--radius-sm)}.container{max-width:var(--container-max);margin:0 auto;padding:0 var(--container-padding)}.skip-link{position:absolute;top:-100px;left:var(--space-4);z-index:100;padding:var(--space-3) var(--space-6);background-color:var(--color-primary-600);color:#fff;border-radius:var(--radius-md);font-weight:600}.skip-link:focus{top:var(--space-4)}.btn{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast);text-decoration:none}.btn-primary{background-color:var(--color-primary-600);color:#fff}.btn-primary:hover{background-color:var(--color-primary-700);transform:translateY(-2px);box-shadow:var(--shadow-md);text-decoration:none}.btn-secondary{background-color:transparent;color:var(--color-primary-600);border:2px solid var(--color-primary-600)}.btn-secondary:hover{background-color:var(--color-primary-50);text-decoration:none}[data-theme=dark] .btn-secondary:hover{background-color:var(--color-primary-900)}.card{background-color:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;transition:all var(--transition-base)}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--color-primary-300)}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-8)}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-8)}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-6)}@media(max-width:1024px){.grid-3{grid-template-columns:repeat(2,1fr)}.grid-4{grid-template-columns:repeat(3,1fr)}}@media(max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}img{max-width:100%;height:auto;display:block}:focus-visible{outline:2px solid var(--color-primary-500);outline-offset:2px}::selection{background-color:var(--color-primary-200);color:var(--color-primary-900)}[data-theme=dark] ::selection{background-color:var(--color-primary-800);color:var(--color-primary-100)}::-webkit-scrollbar{width:12px}::-webkit-scrollbar-track{background:var(--color-bg-secondary)}::-webkit-scrollbar-thumb{background:var(--color-primary-300);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-primary-400)}[data-theme=dark] ::-webkit-scrollbar-thumb{background:var(--color-primary-700)}[data-theme=dark] ::-webkit-scrollbar-thumb:hover{background:var(--color-primary-600)}