* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background-color: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e5e7eb;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-svg {
    width: 40px;
    height: 40px;
}

.logo-svg.footer-logo {
    filter: brightness(0) invert(1);
}

.logo-text-container {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e40af;
    letter-spacing: 0.1em;
    line-height: 1;
}

.logo-subtitle {
    font-size: 0.7rem;
    color: #6b7280;
    font-weight: 400;
    display: block;
    margin-top: 0.1rem;
}

.footer-brand .logo-text {
    color: white;
}

.footer-brand .logo-subtitle {
    color: #9ca3af;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: #374151;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #1e40af;
}

.btn-cta {
    background: #1e40af;
    color: white !important;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: background 0.3s ease;
}

.btn-cta:hover {
    background: #1d4ed8;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #374151;
    margin: 3px 0;
    transition: 0.3s;
}

.hero {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 8rem 0 6rem;
    margin-top: 80px;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    color: #1a1a1a;
}

.highlight {
    color: #1e40af;
    position: relative;
}

.hero-description {
    font-size: 1.2rem;
    color: #4b5563;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: #1e40af;
    color: white;
    border-color: #1e40af;
}

.btn-primary:hover {
    background: #1d4ed8;
    border-color: #1d4ed8;
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: #1e40af;
    border-color: #1e40af;
}

.btn-outline:hover {
    background: #1e40af;
    color: white;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.hero-tagline {
    margin-top: 2rem;
    font-size: 1.1rem;
    color: #6b7280;
}

.hero-visual {
    margin-top: 4rem;
    display: flex;
    justify-content: center;
}

.security-shield {
    position: relative;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    border-radius: 50%;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 40px rgba(30, 64, 175, 0.3);
}

.shield-icon {
    font-size: 3rem;
}

.endpoint-badge {
    position: absolute;
    bottom: -10px;
    background: white;
    color: #1e40af;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: 2px solid #e5e7eb;
}

.features {
    padding: 6rem 0;
    background: white;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 4rem;
    color: #1a1a1a;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e5e7eb;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.feature-card p {
    color: #4b5563;
    line-height: 1.6;
}

.how-it-works {
    padding: 6rem 0;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.step-number {
    background: #1e40af;
    color: white;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
}

.step-content p {
    color: #4b5563;
    line-height: 1.6;
}

.governance-highlight {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
    border-left: 4px solid #1e40af;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.governance-highlight h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.governance-highlight p {
    color: #4b5563;
    font-size: 1.1rem;
}

.email-verification {
    padding: 6rem 0;
    background: linear-gradient(135deg, #ecfdf5 0%, #f0fdf4 100%);
}

.verification-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.verification-intro p {
    font-size: 1.2rem;
    color: #4b5563;
    line-height: 1.7;
}

.verification-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.verification-card {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid #d1fae5;
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.1);
}

.verification-icon {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 1rem;
}

.verification-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    text-align: center;
    color: #1a1a1a;
}

.verification-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: #374151;
    font-size: 0.9rem;
}

.form-group input {
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #10b981;
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-group small {
    color: #6b7280;
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

.verification-btn {
    background: #10b981;
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.verification-btn:hover {
    background: #059669;
    transform: translateY(-2px);
}

.verification-btn:disabled {
    background: #9ca3af;
    cursor: not-allowed;
    transform: none;
}

.verification-result {
    margin-top: 2rem;
    padding: 1.5rem;
    border-radius: 8px;
    border: 2px solid transparent;
}

.verification-result.success {
    background: #f0fdf4;
    border-color: #10b981;
}

.verification-result.error {
    background: #fef2f2;
    border-color: #ef4444;
}

.verification-result.warning {
    background: #fffbeb;
    border-color: #f59e0b;
}

.result-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.result-icon {
    font-size: 2rem;
    text-align: center;
}

.result-message {
    font-weight: 600;
    text-align: center;
}

.result-details {
    background: white;
    padding: 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    border-left: 4px solid #10b981;
}

.verification-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid #d1fae5;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.08);
}

.info-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.info-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.info-card ul {
    list-style: none;
    padding: 0;
}

.info-card li {
    color: #4b5563;
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.5;
}

.info-card li:before {
    content: "•";
    color: #10b981;
    font-weight: 600;
    position: absolute;
    left: 0;
}

.domain-protection {
    padding: 6rem 0;
    background: linear-gradient(135deg, #fef3c7 0%, #fef7e0 100%);
}

.protection-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.protection-intro p {
    font-size: 1.2rem;
    color: #4b5563;
    line-height: 1.7;
}

.protection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.protection-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #fbbf24;
    box-shadow: 0 4px 6px rgba(251, 191, 36, 0.1);
}

.protection-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(251, 191, 36, 0.2);
}

.protection-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.protection-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.protection-card p {
    color: #4b5563;
    line-height: 1.6;
}

.use-cases {
    padding: 6rem 0;
    background: white;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.use-case {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: white;
    padding: 2rem;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.use-case:hover {
    transform: translateY(-5px);
}

.use-case h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.use-case p {
    opacity: 0.9;
    line-height: 1.6;
}

/* CTA Section */
.cta-section {
    padding: 6rem 0;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-section .btn-primary {
    background: white;
    color: #1e40af;
}

.cta-section .btn-primary:hover {
    background: #f8fafc;
    transform: translateY(-2px);
}

.footer {
    background: #1a1a1a;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo-text {
    color: white;
}

.footer-brand .logo-subtitle {
    color: #9ca3af;
}

.footer-tagline {
    margin-top: 1rem;
    color: #9ca3af;
    font-style: italic;
}

.footer-links {
    display: flex;
    gap: 3rem;
}

.footer-column h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.footer-column a,
.footer-column p {
    color: #9ca3af;
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
}

@media (max-width: 768px) {
    .logo-svg {
        width: 32px;
        height: 32px;
    }
    
    .logo-text {
        font-size: 1.2rem;
    }
    
    .logo-subtitle {
        font-size: 0.6rem;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        display: none;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 2rem;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 6rem 0 4rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .features,
    .how-it-works,
    .email-verification,
    .domain-protection,
    .use-cases,
    .cta-section {
        padding: 4rem 0;
    }
    
    .verification-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .container {
        padding: 0 15px;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card,
.step,
.use-case {
    animation: fadeInUp 0.6s ease forwards;
}

html {
    scroll-behavior: smooth;
}