:root {
    --primary-color: #007AFF;
    --text-color: #1D1D1F;
    --text-secondary: #86868B;
    --bg-color: #FFFFFF;
    --bg-secondary: #F5F5F7;
    --nav-height: 60px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

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

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

/* Navbar */
.navbar {
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    font-weight: 600;
    font-size: 1.2rem;
}

.logo img {
    height: 32px;
    margin-right: 10px;
    border-radius: 6px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    font-size: 0.9rem;
    color: var(--text-color);
    transition: color 0.3s;
}

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

/* Contact Tooltip */
.contact-item {
    position: relative;
    display: flex; /* Ensure alignment */
    align-items: center;
}

.contact-item .tooltip {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(29, 29, 31, 0.9);
    color: #fff;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    white-space: nowrap;
    margin-top: 12px;
    transition: all 0.2s ease-in-out;
    pointer-events: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 1002;
}

/* Tooltip Arrow */
.contact-item .tooltip::before {
    content: "";
    position: absolute;
    bottom: 100%;
    left: 50%;
    margin-left: -6px;
    border-width: 6px;
    border-style: solid;
    border-color: transparent transparent rgba(29, 29, 31, 0.9) transparent;
}

.contact-item:hover .tooltip {
    visibility: visible;
    opacity: 1;
    margin-top: 10px; /* Slight movement animation */
}

/* Hero Section */
.hero {
    background-color: var(--bg-secondary);
    padding: 80px 0;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.hero-content {
    flex: 1;
    max-width: 500px;
}

.hero-content h1 {
    font-size: 3rem;
    line-height: 1.1;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.hero-image img {
    max-width: 300px;
    width: 100%;
    border-radius: 40px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    border: 8px solid #fff;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 25px;
    font-weight: 500;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

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

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

/* Features Section */
.features {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 80px;
}

.feature-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 120px;
    gap: 60px;
}

.feature-item.reverse {
    flex-direction: row-reverse;
}

.feature-text {
    flex: 1;
}

.feature-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.feature-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.feature-text ul {
    list-style: none;
}

.feature-text li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.feature-text li i {
    color: var(--primary-color);
    margin-right: 15px;
    width: 20px;
}

.feature-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.feature-image img {
    max-width: 280px;
    border-radius: 30px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    border: 4px solid #f0f0f0;
}

/* CTA Section */
.cta {
    background-color: var(--primary-color);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

/* Footer */
footer {
    background-color: #f5f5f7;
    padding: 40px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

.footer-links a {
    margin-right: 20px;
}

.footer-links a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
        padding-top: 40px;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .feature-item {
        flex-direction: column;
        text-align: center;
        margin-bottom: 80px;
        gap: 40px;
    }

    .feature-item.reverse {
        flex-direction: column;
    }

    .feature-text ul {
        text-align: left;
        display: inline-block;
    }
    
    .nav-links {
        display: none; /* Simplification for mobile: hide links */
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}