:root{--app-bg:#fff;--app-text:#111827;--app-muted:#6b7280;--app-border:#e5e7eb;--app-accent:#2563eb;--app-card:#fff}
[data-theme="dark"]{--app-bg:#0b1220;--app-text:#e5e7eb;--app-muted:#94a3b8;--app-border:#1f2a44;--app-accent:#60a5fa;--app-card:#0f172a}
body{background:var(--app-bg);color:var(--app-text)}
.app-muted{color:var(--app-muted)!important}
.app-card{background:var(--app-card);border:1px solid var(--app-border);border-radius:14px}
.app-chip{display:inline-flex;align-items:center;gap:.35rem;padding:.2rem .55rem;border:1px solid var(--app-border);border-radius:999px;font-size:.8rem;color:var(--app-muted)}
.app-hero{background:linear-gradient(135deg, rgba(37,99,235,.12), rgba(16,185,129,.08));border:1px solid var(--app-border);border-radius:18px}
.app-link{color:var(--app-accent);text-decoration:none}
.app-link:hover{text-decoration:underline}
.card-img-top{object-fit:cover}
.sticky-mobile-actions{position:sticky;bottom:0;z-index:1020;background:var(--app-bg);border-top:1px solid var(--app-border)}