* { margin: 0; padding: 0; box-sizing: border-box; }
        :root {
            --primary: #047857; --primary-light: #059669; --primary-dark: #065F46;
            --success: #10B981; --warning: #F59E0B; --error: #EF4444;
            --gray-50: #F9FAFB; --gray-100: #F3F4F6; --gray-200: #E5E7EB;
            --gray-300: #D1D5DB; --gray-400: #9CA3AF; --gray-500: #6B7280;
            --gray-600: #4B5563; --gray-700: #374151; --gray-800: #1F2937; --gray-900: #111827;
            --bg: #FFFFFF; --text: #111827; --text-secondary: #6B7280; --border: #E5E7EB;
        }
        [data-theme="dark"] {
            --primary: #059669; --primary-light: #34D399; --primary-dark: #047857;
            --gray-50: #0F172A; --gray-100: #1E293B; --gray-200: #334155;
            --gray-300: #475569; --gray-400: #64748B; --gray-500: #94A3B8;
            --gray-600: #CBD5E1; --gray-700: #E2E8F0; --gray-800: #F1F5F9; --gray-900: #F8FAFC;
            --bg: #0F172A; --text: #F1F5F9; --text-secondary: #CBD5E1; --border: #334155;
        }
        body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background-color: var(--bg); color: var(--text); line-height: 1.6; }
        .container { max-width: 900px; margin: 0 auto; padding: 20px; }
        header { background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%); color: white; padding: 60px 20px; text-align: center; margin-bottom: 40px; border-radius: 20px; }
        header h1 { font-size: 2.5rem; font-weight: 700; margin-bottom: 10px; }
        header p { font-size: 1.1rem; opacity: 0.95; }
        .content { background-color: var(--gray-50); padding: 40px; border-radius: 12px; margin-bottom: 40px; border: 1px solid var(--border); }
        [data-theme="dark"] .content { background-color: var(--gray-100); }
        .section { margin-bottom: 40px; }
        .section h2 { font-size: 1.8rem; color: var(--primary); margin-bottom: 20px; display: flex; align-items: center; gap: 12px; }
        .section h3 { font-size: 1.3rem; color: var(--text); margin-top: 24px; margin-bottom: 12px; }
        .section p { font-size: 1rem; color: var(--text-secondary); margin-bottom: 16px; line-height: 1.8; }
        .steps { display: flex; flex-direction: column; gap: 20px; }
        .step { display: flex; gap: 16px; padding: 20px; background-color: var(--bg); border-radius: 10px; border-left: 4px solid var(--primary); }
        [data-theme="dark"] .step { background-color: var(--gray-200); }
        .step-number { display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; background-color: var(--primary); color: white; border-radius: 50%; font-weight: 700; flex-shrink: 0; }
        .step-content h4 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; color: var(--text); }
        .step-content p { font-size: 0.95rem; color: var(--text-secondary); margin: 0; }
        .warning-box { background-color: #FEF3C7; border-left: 4px solid var(--warning); padding: 20px; border-radius: 8px; margin-bottom: 24px; }
        [data-theme="dark"] .warning-box { background-color: #78350F; }
        .warning-box h3 { color: #92400E; font-weight: 600; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
        [data-theme="dark"] .warning-box h3 { color: #FCD34D; }
        .warning-box p { color: #78350F; font-size: 0.95rem; margin: 0; }
        [data-theme="dark"] .warning-box p { color: #FDE68A; }
        .info-box { background-color: #DBEAFE; border-left: 4px solid #3B82F6; padding: 20px; border-radius: 8px; margin-bottom: 24px; }
        [data-theme="dark"] .info-box { background-color: #1E3A8A; }
        .info-box h3 { color: #1E40AF; font-weight: 600; margin-bottom: 8px; }
        [data-theme="dark"] .info-box h3 { color: #93C5FD; }
        .info-box p { color: #1E40AF; font-size: 0.95rem; margin: 0; }
        [data-theme="dark"] .info-box p { color: #BFDBFE; }
        ul, ol { margin-left: 24px; margin-bottom: 16px; }
        li { margin-bottom: 8px; color: var(--text-secondary); }
        .faq-item { border-bottom: 1px solid var(--border); padding: 20px 0; }
        .faq-item:last-child { border-bottom: none; }
        .faq-question { font-weight: 600; color: var(--text); font-size: 1.05rem; cursor: pointer; display: flex; justify-content: space-between; align-items: center; user-select: none; }
        .faq-question:hover { color: var(--primary); }
        .faq-toggle { display: inline-block; width: 20px; height: 20px; line-height: 20px; text-align: center; transition: transform 0.3s ease; }
        .faq-item.active .faq-toggle { transform: rotate(180deg); }
        .faq-answer { display: none; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); color: var(--text-secondary); }
        .faq-item.active .faq-answer { display: block; }
        .btn { display: inline-block; padding: 12px 24px; background-color: var(--primary); color: white; text-decoration: none; border-radius: 8px; font-weight: 600; transition: background-color 0.3s ease; border: none; cursor: pointer; font-size: 1rem; }
        .btn:hover { background-color: var(--primary-dark); }
        .btn-danger { background-color: #EF4444; }
        .btn-danger:hover { background-color: #DC2626; }
        .delete-status { display: none; margin-top: 12px; padding: 12px 16px; border-radius: 8px; font-size: 0.95rem; line-height: 1.5; }
        .delete-status.ok { background-color: #D1FAE5; color: #065F46; border-left: 4px solid #10B981; }
        [data-theme="dark"] .delete-status.ok { background-color: #064E3B; color: #6EE7B7; }
        .delete-status.warn { background-color: #FEF3C7; color: #92400E; border-left: 4px solid #F59E0B; }
        [data-theme="dark"] .delete-status.warn { background-color: #78350F; color: #FDE68A; }
        .delete-status.info { background-color: var(--gray-100); color: var(--text); border-left: 4px solid var(--primary); }
        footer { background-color: var(--gray-50); padding: 30px; text-align: center; color: var(--text-secondary); border-radius: 12px; border: 1px solid var(--border); }
        [data-theme="dark"] footer { background-color: var(--gray-100); }
        footer p { margin: 8px 0; font-size: 0.95rem; }
        .contact-info { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; margin-top: 20px; }
        .contact-card { background-color: var(--bg); padding: 20px; border-radius: 10px; border: 1px solid var(--border); text-align: center; }
        [data-theme="dark"] .contact-card { background-color: var(--gray-200); }

        /* Links inside the dark cards were the browser default blue (#0000EE)
           on a slate-600 card = 1.84:1, and the inline var(--primary) links
           were blue-700 on the same card = 2.75:1. */
        .step a, .contact-card a { color: var(--primary); }
        [data-theme="dark"] .step a, [data-theme="dark"] .contact-card a { color: #93c5fd !important; }
        .contact-card h3 { color: var(--primary); margin-bottom: 10px; font-size: 1.1rem; }
        .contact-card p { color: var(--text-secondary); font-size: 0.95rem; margin: 0; }
        .contact-card a { color: var(--primary); text-decoration: none; font-weight: 600; }
        .contact-card a:hover { text-decoration: underline; }
        @media (max-width: 768px) {
            header h1 { font-size: 1.8rem; }
            .content { padding: 20px; }
            .section h2 { font-size: 1.5rem; }
            .contact-info { grid-template-columns: 1fr; }
        }
    
/* mobile safety: prevent horizontal scroll */
html, body { overflow-x: clip; }
.blog-table, main table, table { max-width: 100%; }
@media (max-width: 768px) { .blog-table, main table, table { display: block; overflow-x: auto; } }
header a, header button, nav a { min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }