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

:root {
    --bg-primary: #111827;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent-primary: #58a6ff;
    --accent-hover: #79c0ff;
    --accent-secondary: #1f6feb;
    --border-color: #30363d;
    --border-hover: #484f58;
    --shadow: rgba(0, 0, 0, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo-text {
    font-size: 2.3rem;
    font-weight: 700;
    color: var(--accent-primary);
    cursor: pointer;
    transition: color 0.3s ease;
    letter-spacing: 0.04em;
}

.logo-text:hover {
    color: var(--accent-hover);
}

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

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent-primary);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    transition: all 0.3s ease;
}

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-outline {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--accent-secondary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(88, 166, 255, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.btn-outline {
    background-color: transparent;
    color: var(--accent-primary);
    border: 1px solid var(--accent-primary);
}

.btn-outline:hover {
    background-color: var(--accent-primary);
    color: white;
}

.btn-large {
    padding: 14px 28px;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
    text-align: center;
}

/* Hero Section */
.hero {
    margin-top: 70px;
    padding: 100px 0;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(88, 166, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

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

.highlight {
    color: var(--accent-primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Sections */
section {
    padding: 80px 0;
}

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

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 3rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

/* Security Section */
.security {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.security-badges {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: wrap !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 2.5rem !important;
    margin-top: 2rem;
    padding: 2rem 0;
    width: 100%;
}

.security-badge-link {
    text-decoration: none;
    color: inherit;
    display: inline-block;
    flex-shrink: 0;
    width: auto;
}

.security-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem 1.25rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    transition: all 0.3s ease;
    min-width: 110px;
}

.security-badge:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(88, 166, 255, 0.2);
    background-color: var(--bg-secondary);
}

.security-badge svg,
.security-badge img {
    filter: drop-shadow(0 0 8px rgba(88, 166, 255, 0.4));
    transition: transform 0.3s ease;
}

.security-badge .cursor-logo {
    filter: drop-shadow(0 0 8px rgba(88, 166, 255, 0.4)) brightness(2.5) contrast(1.3) invert(0.1);
}

.security-badge .openai-logo {
    filter: drop-shadow(0 0 8px rgba(88, 166, 255, 0.4)) brightness(5) contrast(1.8) invert(0.5) grayscale(0.4) saturate(0.5);
}

.security-badge .letsencrypt-logo {
    width: 120px;
    height: 48px;
    filter: drop-shadow(0 0 8px rgba(88, 166, 255, 0.4)) brightness(2.5) contrast(1.5) grayscale(0.3) invert(0.05);
}

.security-badge:hover svg,
.security-badge:hover img {
    transform: scale(1.1);
}

.security-badge span {
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
    text-align: center;
    letter-spacing: 0.5px;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow);
}

.feature-icon {
    font-size: 1.4rem;
    margin-bottom: 1.2rem;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    border: 1px solid rgba(88, 166, 255, 0.8);
    background: radial-gradient(circle at 30% 30%, rgba(88, 166, 255, 0.25), transparent 60%);
    box-shadow: 0 0 16px rgba(88, 166, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* How It Works */
.steps {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: nowrap;
    gap: 2rem;
    margin-top: 3rem;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--accent-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step::after {
    content: '➜';
    position: absolute;
    top: 30px;
    right: -25px;
    color: var(--accent-primary);
    opacity: 0.7;
    font-size: 1.4rem;
}

.step:last-child::after {
    content: '';
}

.step h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.step p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.pricing-summary {
    max-width: 800px;
    margin: 1.5rem auto 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    text-align: center;
}

.pricing-summary p {
    margin-bottom: 0.5rem;
}

.pricing-summary strong {
    color: var(--text-primary);
}

.pricing-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2.5rem;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow);
}

.pricing-card.featured {
    border-color: var(--accent-primary);
    border-width: 2px;
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--accent-primary);
    color: white;
    padding: 4px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.price {
    margin-bottom: 2rem;
}

.currency {
    font-size: 1.2rem;
    color: var(--text-secondary);
    vertical-align: top;
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.period {
    font-size: 1rem;
    color: var(--text-secondary);
}

.features-list {
    list-style: none;
    text-align: left;
    margin-bottom: 2rem;
}

.features-list li {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.features-list li:last-child {
    border-bottom: none;
}

/* CTA Section */
.cta {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    text-align: center;
}

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

.cta-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--bg-secondary);
        flex-direction: column;
        padding: 2rem;
        border-top: 1px solid var(--border-color);
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 999;
    }

    .nav-links.active {
        transform: translateX(0);
        display: flex;
    }

    .nav-links li {
        width: 100%;
        margin-bottom: 1rem;
    }

    .nav-links a {
        display: block;
        padding: 0.75rem;
        border-bottom: 1px solid var(--border-color);
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta a {
        width: 100%;
        max-width: 300px;
    }

    .hero-stats {
        gap: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .security-badges {
        gap: 1.5rem;
        padding: 1.5rem 0;
    }

    .security-badge {
        min-width: 100px;
        padding: 1.25rem 1rem;
    }

    .security-badge svg {
        width: 40px;
        height: 40px;
    }

    .security-badge span {
        font-size: 0.85rem;
    }

    .steps {
        flex-direction: column;
        align-items: center;
    }

    .step::after {
        display: none;
    }
}

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

.feature-card,
.step,
.pricing-card {
    animation: fadeInUp 0.6s ease-out;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }