/* Theme: aurora — unique professional skin */
body.theme-aurora {
    --brand-a: #2563eb;
    --brand-b: #06b6d4;
    --surface: #ffffff;
    --text: #0f172a;
    --muted-text: #475569;
    --theme-radius: 18px;
    --theme-card-radius: 18px;
    --theme-nav: linear-gradient(90deg,#1e40af,#0284c7);
    --theme-nav-text: #ffffff;
    --theme-card-shadow: 0 18px 40px rgba(37,99,235,.12);
    font-family: Outfit, system-ui, sans-serif;
    background: radial-gradient(circle at 12% 8%, rgba(59,130,246,.16), transparent 32%), linear-gradient(180deg,#f8fbff,#eef4ff);
    color: var(--text);
}
body.theme-aurora .app-navbar.sticky-top,
body.theme-aurora .app-navbar { background: var(--theme-nav) !important; }
body.theme-aurora .app-navbar .nav-link,
body.theme-aurora .app-navbar .navbar-brand,
body.theme-aurora .app-navbar .navbar-brand span { color: var(--theme-nav-text) !important; }
body.theme-aurora .glass-card,
body.theme-aurora .tool-panel,
body.theme-aurora .card,
body.theme-aurora .tool-content-block,
body.theme-aurora .tool-content-card {
    background: var(--surface);
    color: var(--text);
    border-radius: var(--theme-card-radius);
    box-shadow: var(--theme-card-shadow);
    border: 0;
}
body.theme-aurora .glass-card h1,
body.theme-aurora .glass-card h2,
body.theme-aurora .glass-card h3,
body.theme-aurora .glass-card h4,
body.theme-aurora .card h1,
body.theme-aurora .card h2,
body.theme-aurora .card h3,
body.theme-aurora .card h4 { color: var(--text); }
body.theme-aurora .text-secondary { color: var(--muted-text) !important; }
body.theme-aurora .hero-badge { background: rgba(127,127,127,.12); color: var(--text); border-color: transparent; }
body.theme-aurora .btn-primary {
    background: linear-gradient(90deg, var(--brand-a), var(--brand-b));
    border: 0; color: #fff !important; border-radius: var(--theme-radius);
}
body.theme-aurora .search-wrap .form-control {
    border-radius: var(--theme-radius); box-shadow: var(--theme-card-shadow);
}
body.theme-aurora .app-footer { background: var(--theme-nav); color: var(--theme-nav-text); }
body.theme-aurora .app-footer .footer-link,
body.theme-aurora .app-footer .text-light-emphasis { color: var(--theme-nav-text) !important; opacity: .92; }
body.theme-aurora .chip, body.theme-aurora .metric-box { border-radius: var(--theme-radius); color: var(--text); }
body.theme-aurora .nav-auth-btn-login { color:#fff !important; border-color:rgba(255,255,255,.9) !important; background:transparent !important; }
body.theme-aurora .nav-auth-btn-signup { color:#0f172a !important; background:#fff !important; border-color:#fff !important; }
body.theme-aurora .ad-slot { margin: 1rem 0; text-align: center; }
body.theme-aurora .hero-section { padding-top: 3.5rem; }
body.theme-aurora .glass-card:hover { transform: translateY(-6px); }
body.theme-aurora .icon-wrap { border-radius: 14px; background: linear-gradient(135deg,rgba(37,99,235,.18),rgba(6,182,212,.18)); }