*,:after,:before{box-sizing:border-box}body,html,img,svg{max-width:100%}img,svg{display:block}:root{--bg:#f6f9fc;--surface:#fff;--text:#0f172a;--muted:#5b6475;--border:#dbe3ef;--radius:14px;--shadow:0 16px 32px rgba(15,23,42,.08);--brand-500:#2563eb;--brand-600:#1d4ed8;--focus-ring:rgba(37,99,235,.28)}html[data-theme=blue]{--bg:#f6f9fc;--surface:#fff;--text:#0f172a;--muted:#5b6475;--border:#dbe3ef;--brand-500:#2563eb;--brand-600:#1d4ed8;--focus-ring:rgba(37,99,235,.28)}html[data-theme=purple]{--bg:#f8f6fe;--surface:#fff;--text:#1e1535;--muted:#62567a;--border:#e6def5;--brand-500:#7c3aed;--brand-600:#6d28d9;--focus-ring:rgba(124,58,237,.28)}html[data-theme=green]{--bg:#f3faf6;--surface:#fff;--text:#123127;--muted:#4c6d62;--border:#d5ebe0;--brand-500:#0f9f6e;--brand-600:#0b8a5f;--focus-ring:rgba(15,159,110,.28)}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,Plus Jakarta Sans,Segoe UI,Roboto,sans-serif;line-height:1.5}a{color:inherit}.container{width:min(1120px,calc(100% - 2rem));margin:0 auto}.app-header{position:-webkit-sticky;position:sticky;top:0;z-index:40;border-bottom:1px solid var(--border);background:color-mix(in srgb,var(--surface) 92%,transparent 8%);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.header-row{min-height:74px;display:flex;align-items:center;justify-content:space-between;gap:1rem}.brand-link{display:inline-flex;align-items:center;gap:.65rem;text-decoration:none}.brand-logo{width:40px;height:40px;border-radius:12px;border:1px solid color-mix(in srgb,var(--brand-500) 45%,transparent);background:color-mix(in srgb,var(--brand-500) 14%,var(--surface) 86%);display:grid;place-items:center;font-size:.8rem;font-weight:800;letter-spacing:.04em;color:var(--brand-600)}.brand-text{font-size:1rem;font-weight:800;letter-spacing:.01em}.nav-desktop{display:none;align-items:center;gap:.35rem}.nav-link{display:inline-flex;align-items:center;min-height:38px;border:1px solid transparent;border-radius:999px;padding:0 .8rem;text-decoration:none;color:var(--muted);font-size:.92rem;font-weight:600}.nav-link:hover{color:var(--text);border-color:color-mix(in srgb,var(--brand-500) 24%,transparent);background:color-mix(in srgb,var(--brand-500) 9%,var(--surface) 91%)}.nav-link.active{color:var(--brand-600);border-color:color-mix(in srgb,var(--brand-500) 40%,transparent);background:color-mix(in srgb,var(--brand-500) 14%,var(--surface) 86%)}.header-actions{display:flex;align-items:center;gap:.5rem}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;border-radius:999px;padding:0 .9rem;text-decoration:none;font-size:.88rem;font-weight:700;border:1px solid var(--border)}.btn-primary{color:#f8fafc;border-color:color-mix(in srgb,var(--brand-500) 48%,transparent);background:linear-gradient(135deg,var(--brand-500),var(--brand-600))}.cta-desktop{display:none}.hamburger-btn{width:42px;height:42px;border:1px solid var(--border);border-radius:12px;background:var(--surface);display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer}.hamburger-btn span{width:16px;height:2px;border-radius:2px;background:var(--text)}.mobile-nav-overlay{position:fixed;inset:0;border:0;margin:0;padding:0;background:rgba(2,6,23,.45);opacity:0;pointer-events:none;transition:opacity .18s ease;z-index:41}.mobile-nav-overlay.is-open{opacity:1;pointer-events:auto}.mobile-nav-drawer{position:fixed;top:0;right:0;width:min(86vw,340px);height:100vh;background:var(--surface);border-left:1px solid var(--border);box-shadow:var(--shadow);transform:translateX(100%);transition:transform .22s ease;z-index:42;padding:1rem}.mobile-nav-drawer.is-open{transform:translateX(0)}.mobile-nav{display:grid;grid-gap:.55rem;gap:.55rem;margin-top:.8rem}.mobile-nav-link{border:1px solid var(--border);border-radius:12px;min-height:42px;padding:.55rem .75rem;text-decoration:none;font-size:.94rem;font-weight:600;color:var(--text);background:color-mix(in srgb,var(--brand-500) 7%,var(--surface) 93%)}.app-main{min-height:calc(100vh - 74px - 70px)}.page-section{width:min(1120px,calc(100% - 2rem));margin:1.2rem auto;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);padding:1.1rem}.page-eyebrow{margin:0;color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-size:.75rem;font-weight:700}.page-title{margin:.35rem 0 0;font-size:clamp(1.7rem,3.8vw,2.5rem);line-height:1.15}.page-copy{margin:.65rem 0 0;color:var(--muted);max-width:70ch}.app-footer{margin-top:1rem;border-top:1px solid var(--border);background:color-mix(in srgb,var(--surface) 92%,transparent 8%)}.footer-row{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:.75rem;color:var(--muted);font-size:.88rem;flex-wrap:wrap}.footer-row nav{display:inline-flex;align-items:center;gap:.9rem}:focus-visible{outline:3px solid var(--focus-ring);outline-offset:2px}@media (min-width:900px){.cta-desktop,.nav-desktop{display:inline-flex}.hamburger-btn{display:none}}