:root {
    --primary-color: #0066cc;
    --text-color: #1d1d1f;
    --text-light: #86868b;
    --bg-color: #ffffff;
    --bg-light: #f5f5f7;
    --nav-bg: rgba(255, 255, 255, 0.8);
    --footer-bg: #f5f5f7;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: 54px;
    background-color: var(--nav-bg);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    z-index: 9999;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.nav-container {
    max-width: 1000px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-logo img {
    height: 32px;
    vertical-align: middle;
}

.logo-text {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-color);
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-size: 14px;
    color: #1d1d1f;
    opacity: 0.8;
    transition: opacity 0.3s;
    letter-spacing: -0.01em;
}

.nav-links a:hover {
    opacity: 1;
}

/* Hero Section */
.hero {
    padding-top: 120px;
    text-align: center;
    overflow: hidden;
}

.hero-subtitle {
    font-size: 24px;
    font-weight: 600;
    color: #bf4800;
    margin-bottom: 10px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 600;
    letter-spacing: -0.005em;
    margin-bottom: 15px;
}

.hero p {
    font-size: 24px;
    color: var(--text-light);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 980px;
    font-size: 17px;
    font-weight: 400;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
}

.btn-primary:hover {
    background-color: #0077ed;
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: #fff;
}

.hero-image {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.support-row {
    display: flex;
    gap: 32px;
    align-items: center;
    text-align: left;
}

.support-row img {
    max-width: 320px;
}

@media (max-width: 768px) {
    .support-row {
        flex-direction: column;
    }
    .support-row img {
        max-width: 100%;
    }
}

/* Features Section */
.features {
    padding: 100px 20px;
    background-color: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 60px;
}

.feature-grid {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.feature-item h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}

.feature-item p {
    font-size: 15px;
    color: var(--text-light);
}

/* Footer */
.footer {
    background-color: var(--footer-bg);
    padding: 40px 20px;
    font-size: 12px;
    color: var(--text-light);
    border-top: 1px solid #d2d2d7;
}

.footer-content {
    max-width: 1000px;
    margin: 0 auto;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid #d2d2d7;
}

.footer-column h4 {
    color: var(--text-color);
    font-weight: 600;
    margin-bottom: 10px;
}

.footer-column ul li {
    margin-bottom: 8px;
}

.footer-column ul li a:hover {
    text-decoration: underline;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Pricing Page */
.pricing {
    padding: 120px 20px 80px;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.pricing-card {
    background: #fff;
    border-radius: 18px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    text-align: center;
    border: 1px solid #e5e5ea;
}

.pricing-card.popular {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}

.pricing-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
}

.pricing-card .price {
    font-size: 40px;
    font-weight: 600;
    margin-bottom: 20px;
}

.pricing-card .price span {
    font-size: 16px;
    color: var(--text-light);
}

.pricing-card ul {
    text-align: left;
    margin-bottom: 30px;
}

.pricing-card ul li {
    margin-bottom: 15px;
    font-size: 15px;
    padding-left: 24px;
    position: relative;
}

.pricing-card ul li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Download Page */
.download-section {
    padding: 120px 20px 80px;
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.download-card {
    background: var(--bg-light);
    border-radius: 18px;
    padding: 40px 20px;
    transition: transform 0.3s;
}

.download-card:hover {
    transform: translateY(-5px);
}

.download-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.download-card p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 20px;
}

/* FAQ Page */
.faq-section {
    padding: 120px 20px 80px;
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 30px;
    border-bottom: 1px solid #e5e5ea;
    padding-bottom: 20px;
}

.faq-item h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

.faq-item p {
    font-size: 15px;
    color: var(--text-light);
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero h1 {
        font-size: 40px;
    }
    .hero p {
        font-size: 18px;
    }
    .pricing-card.popular {
        transform: none;
    }
}