:root{--color-bg-primary:#fafafa;--color-bg-secondary:#f2f4f6;--color-bg-tertiary:#e8ebef;--color-bg-card:#fff;--color-bg-glass:#fffffff2;--color-surface:#fff;--color-surface-hover:#fafafa;--color-border:#e4e7eb;--color-border-hover:#c0c6ce;--color-text-primary:#16202f;--color-text-secondary:#596170;--color-text-muted:#8e96a3;--color-accent:#e00020;--color-accent-hover:#c2001c;--color-accent-dim:#e0002014;--color-accent-alt:#617c68;--color-cta:#e00020;--color-cta-hover:#c2001c;--font-sans:"Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;--font-mono:ui-monospace, "SF Mono", monospace;--text-xs:.75rem;--text-sm:.875rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:2rem;--text-4xl:2.5rem;--text-5xl:3.5rem;--font-normal:400;--font-medium:500;--font-semibold:600;--font-bold:700;--font-extrabold:800;--leading-tight:1.15;--leading-normal:1.55;--leading-relaxed:1.7;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--space-20:5rem;--content-max-width:1200px;--content-padding:clamp(1rem, 4vw, 2rem);--header-height:4rem;--border-radius-sm:.25rem;--border-radius:.5rem;--border-radius-lg:.75rem;--border-radius-xl:1rem;--transition-fast:.15s ease;--transition-base:.25s ease}:root[data-theme=dark]{--color-bg-primary:#10151d;--color-bg-secondary:#171e29;--color-bg-tertiary:#1f2836;--color-bg-card:#1a2330;--color-bg-glass:#10151deb;--color-surface:#232e3e;--color-surface-hover:#2a3648;--color-border:#2a3547;--color-border-hover:#3b4a61;--color-text-primary:#eef2f7;--color-text-secondary:#a8b3c2;--color-text-muted:#75808f;--color-accent-dim:#ff2e3f29;--color-accent-alt:#4a6153}body{background:var(--color-bg-primary)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:17px}body{font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--color-text-primary);background:var(--color-bg-primary);min-height:100vh;overflow-x:hidden}a{color:var(--color-accent);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--color-accent-hover)}img{max-width:100%;height:auto;display:block}button{cursor:pointer;font-family:inherit;font-size:inherit;border:none}input,textarea{font-family:inherit;font-size:inherit}h1,h2,h3,h4,h5,h6{line-height:var(--leading-tight);font-weight:var(--font-bold);color:var(--color-text-primary)}::selection{background:var(--color-accent-dim);color:var(--color-accent)}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:#eef3ff}::-webkit-scrollbar-thumb{background:#5772dc40;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--color-border-hover)}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.section{padding:var(--space-20) var(--content-padding);max-width:var(--content-max-width);margin:0 auto}.section__header{text-align:center;margin-bottom:var(--space-16)}.section__title{font-size:var(--text-4xl);font-weight:var(--font-extrabold);margin-bottom:var(--space-4);background:linear-gradient(135deg, var(--color-text-primary), var(--color-accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.section__subtitle{font-size:var(--text-lg);color:var(--color-text-secondary);max-width:640px;font-weight:var(--font-normal);margin:0 auto}.btn{align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);border-radius:var(--border-radius);font-weight:var(--font-semibold);font-size:var(--text-sm);transition:all var(--transition-base);line-height:1.2;text-decoration:none;display:inline-flex}.btn--primary{background:var(--color-cta);color:#fff}.btn--primary:hover{background:var(--color-cta-hover);transform:translateY(-1px);box-shadow:0 12px 28px #4c63d247}.btn--secondary{background:var(--color-accent-dim);color:var(--color-accent);border:1px solid #00d4ff4d}.btn--secondary:hover{border-color:var(--color-accent);background:#00d4ff40;transform:translateY(-1px)}.btn--ghost{color:var(--color-text-secondary);border:1px solid var(--color-border);background:0 0}.btn--ghost:hover{background:var(--color-surface);color:var(--color-text-primary);border-color:var(--color-border-hover)}@media (width<=768px){.section{padding:var(--space-12) var(--content-padding)}.section__title{font-size:var(--text-3xl)}}