:root{--primary-color:#2563eb;--primary-dark:#1d4ed8;--secondary-color:#64748b;--accent-color:#0ea5e9;--success-color:#10b981;--warning-color:#f59e0b;--danger-color:#ef4444;--bg-gradient:linear-gradient(135deg,#667eea 0%,#764ba2 100%);--card-shadow:0 4px 6px -1px rgba(0,0,0,0.1),0 2px 4px -1px rgba(0,0,0,0.06);--hover-shadow:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05)}body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:linear-gradient(135deg,#f8fafc 0%,#f1f5f9 100%);padding-top:0;line-height:1.6;color:#1e293b;margin:0}.d-flex{display:flex !important}.flex-column{flex-direction:column !important}.flex-grow-1{flex-grow:1 !important}.min-vh-100{min-height:100vh !important}.mt-auto{margin-top:auto !important}.navbar{background:rgba(255,255,255,0.95);backdrop-filter:blur(20px);border-bottom:1px solid rgba(226,232,240,0.8);box-shadow:0 1px 3px 0 rgba(0,0,0,0.1)}.navbar-brand{font-weight:700;color:var(--primary-color) !important;font-size:1.5rem;text-decoration:none}.navbar-brand:hover{color:var(--primary-dark) !important}.nav-link{font-weight:500;color:var(--secondary-color) !important;transition:color 0.3s ease;text-decoration:none}.nav-link:hover{color:var(--primary-color) !important}.page-header{background:var(--bg-gradient);color:white;padding:60px 0;margin-bottom:40px}.tool-card{background:white;border-radius:12px;box-shadow:var(--card-shadow);border:1px solid rgba(226,232,240,0.8);overflow:hidden;transition:all 0.3s ease;height:100%;text-decoration:none;color:inherit;display:block}.tool-card:hover{transform:translateY(-4px);box-shadow:var(--hover-shadow);text-decoration:none;color:inherit}.tool-link{text-decoration:none;color:inherit;display:block;height:100%;padding:1.5rem}.tool-link:hover{text-decoration:none;color:inherit}.form-control,.btn{border-radius:8px}.btn-primary{background:var(--primary-color);border:none;padding:12px 24px;font-weight:600;transition:all 0.3s ease;text-decoration:none}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 12px rgba(37,99,235,0.4);text-decoration:none}.btn-primary:disabled{background:var(--secondary-color);transform:none;box-shadow:none}.back-btn{color:var(--secondary-color);text-decoration:none;font-weight:500;display:inline-flex;align-items:center;gap:0.5rem;transition:color 0.3s ease}.back-btn:hover{color:var(--primary-color);text-decoration:none}.loading-spinner{display:none}.loading-spinner.show{display:inline-block}.hero-section{background:var(--bg-gradient);color:white;padding:120px 0 80px;position:relative;overflow:hidden;min-height:100vh;display:flex;align-items:center}.hero-section::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');opacity:0.3}.hero-content{position:relative;z-index:1}.hero-title{font-size:clamp(2.5rem,5vw,4rem);font-weight:800;margin-bottom:1.5rem;text-shadow:0 2px 4px rgba(0,0,0,0.1);line-height:1.2}.hero-subtitle{font-size:clamp(1.1rem,2vw,1.25rem);font-weight:400;opacity:0.9;max-width:800px;margin:0 auto;line-height:1.6}.hero-cta{margin-top:2rem}.hero-stats{margin-top:4rem}.stat-item{text-align:center;padding:1rem}.stat-number{font-size:2.5rem;font-weight:800;color:#fbbf24;text-shadow:0 2px 4px rgba(0,0,0,0.1)}.stat-label{font-size:0.9rem;font-weight:500;opacity:0.8;margin-top:0.5rem}.features-section{padding:80px 0;background:white}.feature-card{background:white;border-radius:16px;padding:2.5rem 2rem;height:100%;box-shadow:var(--card-shadow);border:1px solid rgba(226,232,240,0.8);transition:all 0.3s ease;text-align:center}.feature-card:hover{transform:translateY(-4px);box-shadow:var(--hover-shadow)}.feature-icon{width:80px;height:80px;background:linear-gradient(135deg,var(--primary-color),var(--accent-color));border-radius:16px;display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;transition:transform 0.3s ease}.feature-card:hover .feature-icon{transform:scale(1.1)}.feature-icon i{font-size:2rem;color:white}.tools-section{padding:80px 0;background:rgba(248,250,252,0.5)}.tools-section.bg-light{background:#f8fafc}.tool-card{background:white;border-radius:12px;padding:1.5rem;height:100%;box-shadow:var(--card-shadow);border:1px solid rgba(226,232,240,0.8);transition:all 0.3s ease;text-decoration:none;color:inherit;display:block}.tool-card:hover{transform:translateY(-4px);box-shadow:var(--hover-shadow);text-decoration:none;color:inherit}.tool-icon{width:60px;height:60px;background:linear-gradient(135deg,var(--primary-color),var(--accent-color));border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:1rem;transition:transform 0.3s ease}.tool-card:hover .tool-icon{transform:scale(1.1)}.tool-icon i{font-size:1.5rem;color:white}.tool-title{font-size:1.25rem;font-weight:700;margin-bottom:0.5rem;color:#1e293b}.tool-category{display:inline-block;background:linear-gradient(135deg,var(--primary-color),var(--accent-color));color:white;padding:0.25rem 0.75rem;border-radius:20px;font-size:0.75rem;font-weight:600;margin-bottom:0.75rem}.tool-description{color:#64748b;line-height:1.6;margin-bottom:0}.cta-section{background:var(--bg-gradient);color:white;padding:80px 0;position:relative;overflow:hidden}.cta-section::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');opacity:0.3}.cta-section .container{position:relative;z-index:1}.btn-outline-light{border:2px solid rgba(255,255,255,0.8);color:white;background:transparent;transition:all 0.3s ease}.btn-outline-light:hover{background:white;color:var(--primary-color);border-color:white;transform:translateY(-1px)}footer{background:#1e293b;color:white;padding:3rem 0 2rem}footer h5{color:#fbbf24;margin-bottom:1rem}footer p{color:#cbd5e1;line-height:1.6}@media (max-width:768px){.hero-title{font-size:2.5rem}.hero-subtitle{font-size:1.1rem}.hero-section{padding:100px 0 60px;min-height:auto}.stat-number{font-size:2rem}.feature-card{padding:2rem 1.5rem}.tool-card{padding:1.25rem}.hero-stats .row{margin-top:2rem}.stat-item{margin-bottom:1rem}}@media (max-width:576px){.hero-title{font-size:2rem}.hero-subtitle{font-size:1rem}.btn-lg{padding:0.75rem 1.5rem;font-size:1rem}.feature-card{padding:1.5rem 1rem}.tool-card{padding:1rem}}.lazy{opacity:0;transition:opacity 0.3s}.lazy.loaded{opacity:1}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.btn:focus,.nav-link:focus,.tool-link:focus{outline:2px solid var(--primary-color);outline-offset:2px}@media print{.hero-section,.cta-section,.navbar,footer{display:none}body{background:white;color:black}.tool-card{break-inside:avoid;box-shadow:none;border:1px solid #ddd}}.results-section{display:none;margin-top:2rem;padding:1.5rem;background:white;border-radius:12px;box-shadow:var(--card-shadow);border:1px solid rgba(226,232,240,0.8)}.results-section.show{display:block}.whois-section{padding:0.75rem 0;border-bottom:1px solid rgba(0,0,0,0.1)}.whois-section:last-child{border-bottom:none}.whois-label{font-weight:600;color:#374151}#whoisData,#dnsData,#sslData,#portData,#blacklistData,#emailData,#pingData,#headersData,#hashData,#base64Data,#jsonData,#timestampData,#ipv6Data,#subnetData,#sslDecodeData,#urlData,#userAgentData,#macData,#spfData,#smtpData,#reverseData,#tlsData,#propagationData{background:#f8f9fa;border-radius:8px;padding:1.5rem;margin-top:1rem;border:1px solid #e9ecef}.badge{font-size:0.75rem;font-weight:500;padding:0.25rem 0.5rem;border-radius:4px}.badge.bg-success{background-color:#10b981 !important}.badge.bg-primary{background-color:#2563eb !important}.badge.bg-secondary{background-color:#6b7280 !important}.btn-copy{padding:0.25rem 0.5rem;font-size:0.75rem;border-radius:4px;transition:all 0.2s ease}.btn-copy:hover{background-color:#e5e7eb;border-color:#d1d5db}.loading-spinner{display:none}.loading-spinner.show{display:inline-block}.form-control:focus{border-color:var(--primary-color);box-shadow:0 0 0 0.2rem rgba(37,99,235,0.25)}.btn-primary{background:var(--primary-color);border:none;padding:12px 24px;font-weight:500;transition:all 0.3s ease}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 4px 8px rgba(37,99,235,0.3)}.btn-primary:disabled{background:#9ca3af;cursor:not-allowed;transform:none;box-shadow:none}.back-btn{color:rgba(255,255,255,0.8);text-decoration:none;font-weight:500;transition:color 0.3s ease}.back-btn:hover{color:white;text-decoration:none}.tool-card{background:white;border-radius:12px;box-shadow:var(--card-shadow);border:1px solid rgba(226,232,240,0.8);overflow:hidden;transition:all 0.3s ease;height:100%;text-decoration:none;color:inherit;display:block}.tool-card:hover{transform:translateY(-4px);box-shadow:var(--hover-shadow);text-decoration:none;color:inherit}.record-card{background:white;border:1px solid #e5e7eb;border-radius:8px;padding:1rem;margin-bottom:0.5rem}.record-card:hover{border-color:var(--primary-color);box-shadow:0 2px 4px rgba(37,99,235,0.1)}.badge-a{background-color:#3b82f6 !important}.badge-aaaa{background-color:#8b5cf6 !important}.badge-mx{background-color:#10b981 !important}.badge-txt{background-color:#f59e0b !important}.badge-cname{background-color:#ef4444 !important}.badge-ns{background-color:#06b6d4 !important}.badge-valid{background-color:#10b981 !important}.badge-acceptable{background-color:#3b82f6 !important}.badge-warning{background-color:#f59e0b !important}.badge-invalid{background-color:#ef4444 !important}.badge-missing{background-color:#f59e0b !important}.auth-record-card{background:linear-gradient(135deg,#ffffff 0%,#f8fafc 100%);border:2px solid #e5e7eb;border-radius:12px;padding:1.5rem;margin-bottom:1.5rem;transition:all 0.3s ease;box-shadow:0 2px 8px rgba(0,0,0,0.05)}.auth-record-card:hover{border-color:var(--primary-color);box-shadow:0 4px 12px rgba(37,99,235,0.15);transform:translateY(-2px)}.auth-record-card .status-icon{font-size:1.75rem;width:48px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:linear-gradient(135deg,#f0f9ff 0%,#e0f2fe 100%);border:2px solid #0ea5e9;color:#0ea5e9}.auth-record-card .status-icon.text-success{background:linear-gradient(135deg,#f0fdf4 0%,#dcfce7 100%);border-color:#10b981;color:#10b981}.auth-record-card .status-icon.text-info{background:linear-gradient(135deg,#eff6ff 0%,#dbeafe 100%);border-color:#3b82f6;color:#3b82f6}.auth-record-card .status-icon.text-warning{background:linear-gradient(135deg,#fffbeb 0%,#fef3c7 100%);border-color:#f59e0b;color:#f59e0b}.auth-record-card .status-icon.text-danger{background:linear-gradient(135deg,#fef2f2 0%,#fee2e2 100%);border-color:#ef4444;color:#ef4444}.auth-record-card .record-value{background:linear-gradient(135deg,#f8fafc 0%,#f1f5f9 100%);border:1px solid #e2e8f0;border-radius:8px;padding:1rem;font-family:'Courier New',monospace;font-size:0.875rem;word-break:break-all;max-height:200px;overflow-y:auto;white-space:pre-wrap;color:#334155;line-height:1.5}.auth-record-card .issue-item{padding:0.75rem;border-radius:6px;margin-bottom:0.5rem;background:linear-gradient(135deg,#fef3c7 0%,#fde68a 100%);border-left:4px solid #f59e0b;display:flex;align-items:flex-start;transition:all 0.2s ease}.auth-record-card .issue-item:hover{background:linear-gradient(135deg,#fde68a 0%,#fcd34d 100%);transform:translateX(2px)}.auth-record-card .issue-item:last-child{margin-bottom:0}.auth-record-card .issue-item i{margin-top:0.125rem;flex-shrink:0;color:#d97706}.auth-record-card .recommendation-item{padding:0.75rem;border-radius:6px;margin-bottom:0.5rem;background:linear-gradient(135deg,#dbeafe 0%,#bfdbfe 100%);border-left:4px solid #3b82f6;display:flex;align-items:flex-start;transition:all 0.2s ease}.auth-record-card .recommendation-item:hover{background:linear-gradient(135deg,#bfdbfe 0%,#93c5fd 100%);transform:translateX(2px)}.auth-record-card .recommendation-item:last-child{margin-bottom:0}.auth-record-card .recommendation-item i{margin-top:0.125rem;flex-shrink:0;color:#2563eb}.auth-record-card .badge{font-size:0.75rem;font-weight:600;padding:0.375rem 0.75rem;border-radius:6px;text-transform:uppercase;letter-spacing:0.025em}.auth-record-card .badge.bg-info{background:linear-gradient(135deg,#3b82f6 0%,#2563eb 100%) !important;color:white}.auth-record-card .badge.bg-secondary{background:linear-gradient(135deg,#6b7280 0%,#4b5563 100%) !important;color:white}.auth-record-card .badge.bg-success{background:linear-gradient(135deg,#10b981 0%,#059669 100%) !important;color:white}.auth-record-card .badge.bg-warning{background:linear-gradient(135deg,#f59e0b 0%,#d97706 100%) !important;color:white}.auth-record-card .text-success{color:#059669 !important;font-weight:600}.auth-record-card .text-warning{color:#d97706 !important;font-weight:600}.auth-record-card .text-muted{color:#6b7280 !important}.auth-record-card .small{font-size:0.875rem}.auth-record-card .fw-semibold{font-weight:600}.auth-record-card h5{color:#1f2937;font-weight:700;margin-bottom:0.5rem}.auth-record-card h6{color:#374151;font-weight:600;margin-bottom:0.5rem}.auth-record-card .text-success{background:linear-gradient(135deg,#f0fdf4 0%,#dcfce7 100%);border:1px solid #bbf7d0;border-radius:6px;padding:0.75rem;color:#166534 !important;font-weight:600}.auth-record-card .text-success i{color:#16a34a}.auth-record-card .mb-1{margin-bottom:0.25rem}.auth-record-card .mb-2{margin-bottom:0.5rem}.auth-record-card .mb-3{margin-bottom:1rem}.auth-record-card .mt-3{margin-top:1rem}.auth-record-card .me-2{margin-right:0.5rem}.auth-record-card .ms-1{margin-left:0.25rem}.auth-record-card .gap-3{gap:1rem}.auth-record-card .d-flex{display:flex}.auth-record-card .align-items-center{align-items:center}.auth-record-card .align-items-start{align-items:flex-start}.auth-record-card .justify-content-between{justify-content:space-between}.results-section{background:linear-gradient(135deg,#ffffff 0%,#f8fafc 100%);border:2px solid #e5e7eb;border-radius:16px;box-shadow:0 4px 16px rgba(0,0,0,0.08)}.results-section.show{animation:slideIn 0.3s ease-out}@keyframes slideIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.port-result{background:white;border:1px solid #e5e7eb;border-radius:8px;padding:1rem;margin-bottom:0.5rem;transition:all 0.2s ease}.port-result:hover{border-color:var(--primary-color);box-shadow:0 2px 4px rgba(37,99,235,0.1)}.port-result.border-success{border-color:#10b981 !important}.port-result.border-danger{border-color:#ef4444 !important}.bg-light-success{background-color:rgba(16,185,129,0.1) !important}.bg-light-danger{background-color:rgba(239,68,68,0.1) !important}.bg-light-warning{background-color:rgba(245,158,11,0.1) !important}.bg-light-info{background-color:rgba(59,130,246,0.1) !important}.bg-light-secondary{background-color:rgba(107,114,128,0.1) !important}.badge-info{background-color:#3b82f6 !important}.badge-warning{background-color:#f59e0b !important}.badge-danger{background-color:#ef4444 !important}#emailData,#portData{background:#f8f9fa;border-radius:8px;padding:1.5rem;margin-top:1rem;border:1px solid #e9ecef}.scan-summary{background:white;border:1px solid #e5e7eb;border-radius:8px;padding:1.5rem;margin-bottom:1.5rem}.results-section{display:none;margin-top:2rem;padding:1.5rem;background:white;border-radius:12px;box-shadow:var(--card-shadow);border:1px solid rgba(226,232,240,0.8)}.results-section.show{display:block}.tool-card{margin-bottom:0}.site-main:has(.results-section.show){padding-bottom:clamp(32px,4vw,64px)}.results-section.show ~ .site-footer{margin-top:clamp(32px,3vw,56px)}.form-control:focus{border-color:var(--primary-color);box-shadow:0 0 0 0.2rem rgba(37,99,235,0.25)}.form-label{font-weight:600;color:#374151;margin-bottom:0.5rem}.form-text{color:#6b7280;font-size:0.875rem;margin-top:0.25rem}.btn{border-radius:6px;font-weight:500;transition:all 0.2s ease}.btn:focus{box-shadow:0 0 0 0.2rem rgba(37,99,235,0.25)}.loading-spinner{display:none;animation:spin 1s linear infinite}.loading-spinner.show{display:inline-block}@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}@media (max-width:768px){.auth-record-card,.port-result{padding:1rem}.record-value{font-size:0.75rem;padding:0.5rem}.status-icon{width:32px;height:32px;font-size:1.25rem}}.ssl-info-card{background:white;border:1px solid #e5e7eb;border-radius:8px;padding:1.5rem;margin-bottom:1rem;transition:all 0.2s ease}.ssl-info-card:hover{border-color:var(--primary-color);box-shadow:0 2px 4px rgba(37,99,235,0.1)}.ssl-info-card .list-unstyled li{padding:0.5rem;margin-bottom:0.5rem;color:#dc2626}.ssl-info-card .list-unstyled li:last-child{margin-bottom:0}.ssl-info-card .text-success{padding:0.5rem;color:#059669}.export-buttons{display:flex;gap:0.5rem}.export-buttons .btn{transition:all 0.2s ease}.export-buttons .btn:hover{transform:translateY(-1px);box-shadow:0 2px 4px rgba(0,0,0,0.1)}.export-buttons .btn-success{background-color:#059669;border-color:#059669;color:white}.export-buttons .btn-success:hover{background-color:#047857;border-color:#047857}.export-buttons .btn-group .btn{border-radius:0}.export-buttons .btn-group .btn:first-child{border-top-left-radius:0.375rem;border-bottom-left-radius:0.375rem}.export-buttons .btn-group .btn:last-child{border-top-right-radius:0.375rem;border-bottom-right-radius:0.375rem}.export-buttons .btn-group .btn:not(:last-child){border-right:0}.tls-protocol-card{background:white;border:1px solid #e5e7eb;border-radius:8px;padding:1rem;margin-bottom:0.5rem;transition:all 0.2s ease}.tls-protocol-card:hover{border-color:var(--primary-color);box-shadow:0 2px 4px rgba(37,99,235,0.1)}.smtp-test-card{background:white;border:1px solid #e5e7eb;border-radius:8px;padding:1rem;margin-bottom:0.5rem;transition:all 0.2s ease}.smtp-test-card:hover{border-color:var(--primary-color);box-shadow:0 2px 4px rgba(37,99,235,0.1)}.reverse-dns-card{background:white;border:1px solid #e5e7eb;border-radius:8px;padding:1.5rem;margin-bottom:1rem;transition:all 0.2s ease}.reverse-dns-card:hover{border-color:var(--primary-color);box-shadow:0 2px 4px rgba(37,99,235,0.1)}.ping-result{background:white;border:1px solid #e5e7eb;border-radius:8px;padding:1rem;margin-bottom:0.5rem;transition:all 0.2s ease}.ping-result:hover{border-color:var(--primary-color);box-shadow:0 2px 4px rgba(37,99,235,0.1)}.security-header{background:white;border:1px solid #e5e7eb;border-radius:8px;padding:1rem;margin-bottom:0.5rem;transition:all 0.2s ease}.security-header:hover{border-color:var(--primary-color);box-shadow:0 2px 4px rgba(37,99,235,0.1)}.header-item{background:white;border:1px solid #e5e7eb;border-radius:8px;padding:1rem;margin-bottom:0.5rem;transition:all 0.2s ease}.header-item:hover{border-color:var(--primary-color);box-shadow:0 2px 4px rgba(37,99,235,0.1)}.header-item.border-primary{border-color:var(--primary-color) !important}.hash-result{background:white;border:1px solid #e5e7eb;border-radius:8px;padding:1rem;margin-bottom:0.5rem;transition:all 0.2s ease}.hash-result:hover{border-color:var(--primary-color);box-shadow:0 2px 4px rgba(37,99,235,0.1)}.email-hop-card{background:white;border:1px solid #e5e7eb;border-radius:8px;padding:1rem;margin-bottom:0.5rem;transition:all 0.2s ease}.email-hop-card:hover{border-color:var(--primary-color);box-shadow:0 2px 4px rgba(37,99,235,0.1)}.spam-warning-card{background:rgba(245,158,11,0.1);border:1px solid #f59e0b;border-radius:8px;padding:1rem;margin-bottom:0.5rem}.spf-include-card{background:white;border:1px solid #e5e7eb;border-radius:8px;padding:1rem;margin-bottom:0.5rem;transition:all 0.2s ease}.spf-include-card:hover{border-color:var(--primary-color);box-shadow:0 2px 4px rgba(37,99,235,0.1)}.record-card{background:white;border:1px solid #e5e7eb;border-radius:8px;padding:1rem;margin-bottom:0.5rem;transition:all 0.2s ease}.record-card:hover{border-color:var(--primary-color);box-shadow:0 2px 4px rgba(37,99,235,0.1)}.progress{height:8px;border-radius:4px;background-color:#e5e7eb;overflow:hidden}.progress-bar{transition:width 0.3s ease}.alert{border-radius:8px;border:none;padding:1rem;margin-bottom:1rem}.alert-success{background-color:rgba(16,185,129,0.1);color:#065f46;border-left:4px solid #10b981}.alert-warning{background-color:rgba(245,158,11,0.1);color:#92400e;border-left:4px solid #f59e0b}.alert-danger{background-color:rgba(239,68,68,0.1);color:#991b1b;border-left:4px solid #ef4444}.alert-info{background-color:rgba(59,130,246,0.1);color:#1e40af;border-left:4px solid #3b82f6}.bg-light{background-color:#f8f9fa !important}.bg-light-success{background-color:rgba(16,185,129,0.1) !important}.bg-light-danger{background-color:rgba(239,68,68,0.1) !important}.bg-light-warning{background-color:rgba(245,158,11,0.1) !important}.bg-light-info{background-color:rgba(59,130,246,0.1) !important}.bg-light-secondary{background-color:rgba(107,114,128,0.1) !important}.border-success{border-color:#10b981 !important}.border-danger{border-color:#ef4444 !important}.border-warning{border-color:#f59e0b !important}.border-info{border-color:#3b82f6 !important}.border-secondary{border-color:#6b7280 !important}.border-primary{border-color:var(--primary-color) !important}.text-success{color:#10b981 !important}.text-danger{color:#ef4444 !important}.text-warning{color:#f59e0b !important}.text-info{color:#3b82f6 !important}.text-secondary{color:#6b7280 !important}.text-muted{color:#9ca3af !important}.badge-success{background-color:#10b981 !important}.badge-danger{background-color:#ef4444 !important}.badge-warning{background-color:#f59e0b !important}.badge-info{background-color:#3b82f6 !important}.badge-secondary{background-color:#6b7280 !important}.badge-primary{background-color:var(--primary-color) !important}.border-left{border-left:4px solid}.form-control:focus,.btn:focus,.badge:focus{outline:none;box-shadow:0 0 0 0.2rem rgba(37,99,235,0.25)}.card:hover,.tool-card:hover,.auth-record-card:hover,.port-result:hover,.ssl-info-card:hover,.tls-protocol-card:hover,.smtp-test-card:hover,.reverse-dns-card:hover,.ping-result:hover,.security-header:hover,.header-item:hover,.hash-result:hover,.email-hop-card:hover,.spf-include-card:hover,.record-card:hover{transform:translateY(-1px);box-shadow:0 4px 8px rgba(0,0,0,0.1)}.email-header-analyzer{background:linear-gradient(135deg,#f8fafc 0%,#f1f5f9 100%);padding:1rem 0}.email-header-analyzer .tool-card{background:white;border-radius:12px;box-shadow:0 4px 15px rgba(0,0,0,0.1);border:1px solid rgba(226,232,240,0.8);overflow:hidden;transition:all 0.3s ease;max-width:1200px;margin:0 auto}.email-header-analyzer .tool-card:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(0,0,0,0.12)}.email-header-analyzer .results-section{animation:fadeIn 0.6s ease-in-out}.email-header-analyzer .card{border:1px solid rgba(226,232,240,0.8);border-radius:8px;box-shadow:0 2px 8px 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!important}.email-header-analyzer .btn-copy{transition:all 0.2s ease;border-radius:8px;padding:0.5rem 0.75rem}.email-header-analyzer .btn-copy:hover{transform:scale(1.05);box-shadow:0 2px 8px rgba(0,0,0,0.1)}.email-header-analyzer .form-control{border-radius:8px;border:2px solid rgba(226,232,240,0.8);padding:0.75rem;font-size:0.9rem;transition:all 0.3s ease}.email-header-analyzer .form-control:focus{border-color:var(--primary-color);box-shadow:0 0 0 0.2rem rgba(37,99,235,0.15)}.email-header-analyzer .btn{border-radius:8px;padding:0.6rem 1.2rem;font-weight:600;transition:all 0.3s ease}.email-header-analyzer .btn-primary{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);border:none;box-shadow:0 4px 12px rgba(37,99,235,0.3)}.email-header-analyzer .btn-primary:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(37,99,235,0.4)}.email-header-analyzer .btn-outline-secondary{border:2px solid rgba(226,232,240,0.8);color:var(--secondary-color)}.email-header-analyzer .btn-outline-secondary:hover{background:rgba(226,232,240,0.8);border-color:var(--secondary-color)}.email-header-analyzer .alert{border-radius:12px;border:none;padding:1rem 1.5rem}.email-header-analyzer .bg-light{background:linear-gradient(135deg,#f8fafc 0%,#f1f5f9 100%) !important;border:1px solid rgba(226,232,240,0.8)}.email-header-analyzer .text-center .card{background:linear-gradient(135deg,#ffffff 0%,#f8fafc 100%)}.email-header-analyzer .text-center .card-title{font-size:1.5rem;font-weight:700;margin-bottom:0.5rem}.email-header-analyzer .text-center .card-text{color:var(--secondary-color);font-weight:500}.email-header-analyzer .btn-outline-primary{border-radius:20px;padding:0.5rem 1rem;font-size:0.875rem;font-weight:500;transition:all 0.2s ease}.email-header-analyzer .btn-outline-primary:hover{transform:translateY(-1px);box-shadow:0 2px 4px rgba(0,0,0,0.1)}.email-header-analyzer .modal-content{border-radius:12px;border:none;box-shadow:0 10px 30px rgba(0,0,0,0.2)}.email-header-analyzer .modal-header{background:linear-gradient(135deg,#f8f9fa 0%,#e9ecef 100%);border-bottom:1px solid #dee2e6;border-radius:12px 12px 0 0}.email-header-analyzer .modal-body{padding:1.5rem}.email-header-analyzer .modal-footer{background:#f8f9fa;border-top:1px solid #dee2e6;border-radius:0 0 12px 12px}@keyframes fadeIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.email-header-analyzer .results-section{animation:fadeIn 0.6s ease-out}.email-header-analyzer .card{animation:fadeIn 0.4s ease-out;animation-fill-mode:both}.email-header-analyzer .card:nth-child(1){animation-delay:0.1s}.email-header-analyzer .card:nth-child(2){animation-delay:0.2s}.email-header-analyzer .card:nth-child(3){animation-delay:0.3s}.email-header-analyzer .card:nth-child(4){animation-delay:0.4s}@media (max-width:768px){.email-header-analyzer{padding:0.5rem 0}.email-header-analyzer .tool-card{margin:0 0.5rem;padding:1rem !important}.email-header-analyzer .btn{padding:0.5rem 1rem;font-size:0.85rem}.email-header-analyzer .d-flex.gap-2{flex-direction:column;gap:0.5rem !important}.email-header-analyzer .text-center h3{font-size:1.5rem}.email-header-analyzer .alert{padding:0.5rem 0.75rem}.email-header-analyzer .alert .d-flex{flex-direction:column;text-align:center}.email-header-analyzer .alert .fa-info-circle{margin-bottom:0.25rem}.email-header-analyzer .card-body{padding:0.75rem}.email-header-analyzer .card-header{padding:0.5rem 0.75rem}}.email-header-analyzer .loading-spinner{animation:spin 1s linear infinite}.email-header-analyzer .btn-loading{background:linear-gradient(135deg,#6b7280 0%,#4b5563 100%) !important;cursor:not-allowed}@keyframes spin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}.email-header-analyzer .btn-copy:active{transform:scale(0.95)}.email-header-analyzer .results-section.show{animation:slideInUp 0.6s ease-out}@keyframes slideInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.tool-pages{background:#f8fafc;padding-bottom:clamp(1rem,2vw,2rem)}.tool-pages .page-header{padding:clamp(2rem,5vw,3.75rem) 0;margin-bottom:clamp(1.25rem,3vw,2rem)}.tool-pages .page-header .lead{max-width:880px;margin-bottom:0}.tool-page-container{max-width:1120px}.tool-pages .tool-card{height:auto;min-height:0;overflow:visible;margin-bottom:clamp(1rem,2vw,1.5rem)}.tool-pages .tool-card:hover{transform:none}.tool-pages .tool-card .mb-4:last-child,.tool-pages .tool-card .mb-3:last-child{margin-bottom:0 !important}.tool-pages .results-section{display:none;height:auto;min-height:0;max-width:100%;overflow-x:auto;margin-top:1rem;padding:clamp(1rem,2vw,1.25rem);background:#fff;border:1px solid rgba(226,232,240,0.95);border-radius:12px;box-shadow:0 8px 24px rgba(15,23,42,0.06)}.tool-pages .results-section.show{display:block}.tool-pages .results-section:empty,.tool-pages .results-section:not(.show):empty{display:none !important;margin:0 !important;padding:0 !important;border:0 !important;box-shadow:none !important}.tool-pages .results-section .row{--bs-gutter-x:0.75rem;--bs-gutter-y:0.75rem}.tool-pages section[aria-labelledby$="-guide-title"]{margin-top:clamp(1rem,2vw,1.5rem) !important}.tool-pages section[aria-labelledby$="-guide-title"] .card{height:auto;min-height:0;overflow:visible}.tool-pages section[aria-labelledby$="-guide-title"] .card-body{padding:clamp(1rem,2vw,1.25rem) !important}.tool-pages section[aria-labelledby$="-guide-title"] h2{margin-bottom:0.65rem}.tool-pages section[aria-labelledby$="-guide-title"] ul{margin-bottom:0}.tool-pages .accordion{margin-bottom:clamp(1rem,2vw,1.5rem) !important}.tool-pages .accordion-button{padding:0.875rem 1rem;font-weight:600}.tool-pages .accordion-body{padding:0.875rem 1rem}.tool-pages .export-buttons,.tool-pages .d-flex.gap-2{flex-wrap:wrap}.tool-pages pre,.tool-pages code,.tool-pages .table,.tool-pages canvas,.tool-pages img{max-width:100%}.tool-pages pre,.tool-pages code{white-space:pre-wrap;overflow-wrap:anywhere}.tool-pages .table-responsive,.tool-pages .results-section table{max-width:100%}@media (max-width:991.98px){.tool-pages .page-header{padding:2rem 0;margin-bottom:1rem}.tool-pages .page-header h1{font-size:clamp(1.8rem,7vw,2.5rem)}.tool-page-container{max-width:100%}}@media (max-width:575.98px){.tool-pages .tool-card{padding:1rem !important;border-radius:10px}.tool-pages .input-group{gap:0.5rem}.tool-pages .input-group>.form-control,.tool-pages .input-group>.form-select,.tool-pages .input-group>.btn{flex:1 1 100%;width:100%;max-width:100% !important;border-radius:0.5rem !important}.tool-pages .results-section{padding:0.875rem;border-radius:10px}.tool-pages .d-flex.justify-content-between.align-items-center{align-items:flex-start !important;gap:0.75rem;flex-wrap:wrap}.tool-pages .btn,.tool-pages .accordion-button{white-space:normal}}.footer-brand{color:#fbbf24;font-weight:700;font-size:1.25rem;line-height:1.2;margin-bottom:1rem}.site-footer .text-secondary{color:#cbd5e1!important}.site-footer .cookie-settings-link{color:#e2e8f0;text-decoration:none}.site-footer .cookie-settings-link:hover{color:#fff;text-decoration:underline}.btn-outline-primary{color:#1d4ed8;border-color:#1d4ed8}.btn-outline-primary:hover,.btn-outline-primary:focus{background:#1d4ed8;border-color:#1d4ed8;color:#fff}