:root {
    /* Light theme variables */
    --light-bg: #F7F7F7;
    --light-text: #1A1A1A;
    --light-highlight-1: #3B63A8;
    --light-highlight-2: #7CB9F2;
    --light-card-bg: #FFFFFF;
    --light-border: rgba(0, 0, 0, 0.1);
    --light-link: #3B63A8;
    --light-link-hover: #7CB9F2;

    /* Dark theme variables */
    --dark-bg: #0C1421;
    --dark-text: #FFFFFF;
    --dark-highlight-1: #3B63A8;
    --dark-highlight-2: #7CB9F2;
    --dark-card-bg: #1A2433;
    --dark-border: rgba(255, 255, 255, 0.1);
    --dark-link: #7CB9F2;
    --dark-link-hover: #9DCFFF;

    /* Default theme (light) */
    --bg-color: var(--light-bg);
    --text-color: var(--light-text);
    --highlight-1: var(--light-highlight-1);
    --highlight-2: var(--light-highlight-2);
    --card-bg: var(--light-card-bg);
    --border-color: var(--light-border);
    --link-color: var(--light-link);
    --link-hover-color: var(--light-link-hover);
}

/* Dark theme */
[data-theme="dark"] {
    --bg-color: var(--dark-bg);
    --text-color: var(--dark-text);
    --highlight-1: var(--dark-highlight-1);
    --highlight-2: var(--dark-highlight-2);
    --card-bg: var(--dark-card-bg);
    --border-color: var(--dark-border);
    --link-color: var(--dark-link);
    --link-hover-color: var(--dark-link-hover);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--card-bg);
    padding: 1rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: background-color 0.3s ease;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 40px;
    width: auto;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.theme-toggle:hover {
    color: var(--highlight-2);
}

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

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

.nav-links a:hover {
    color: var(--highlight-2);
}

main {
    margin-top: 80px;
    padding: 2rem 1rem;
}

.hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 1rem;
    text-align: center;
    position: relative;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, var(--highlight-1), var(--highlight-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.hero p {
    font-size: 1.35rem;
    line-height: 1.5;
    color: var(--text-color);
    opacity: 0.9;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle {
    margin-top: 1.5rem;
    font-size: 1.1rem;
    opacity: 0.8;
}

.hero-subtitle strong {
    font-weight: 700;
    color: var(--highlight-1);
}

.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--highlight-1), var(--highlight-2));
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.section {
    max-width: 1200px;
    margin: 6rem auto;
    padding: 0 1rem;
}

.section h2 {
    font-size: 2.75rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 1rem;
    text-align: center;
}

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

.feature-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

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

.feature-card i {
    font-size: 2rem;
    color: var(--highlight-2);
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--highlight-1);
}

.feature-card p {
    font-size: 1.1rem;
    line-height: 1.6;
    opacity: 0.9;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.pricing-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.pricing-card h3 {
    font-size: 1.75rem;
    color: var(--highlight-1);
    margin-bottom: 0.5rem;
}

.price {
    font-size: 3rem;
    font-weight: bold;
    color: var(--highlight-1);
    margin: 1.5rem 0;
}

.price-details {
    margin: 1.5rem 0;
}

.price-details p {
    font-size: 1.1rem;
    margin: 0.75rem 0;
    opacity: 0.9;
}

.price-details p strong {
    font-weight: 700;
    color: inherit;
}

.pricing-card.calculator-card .price-details p strong {
    color: white;
}

footer {
    background: var(--card-bg);
    padding: 5rem 1rem;
    margin-top: 6rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 4rem;
}

.footer-content h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--highlight-1);
}

.footer-content p {
    font-size: 1.1rem;
    margin: 0.75rem 0;
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.75rem;
    }

    .section h2 {
        font-size: 2.25rem;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu {
        display: block;
    }

    .calculator-content {
        padding: 2rem;
    }

    .calculator-content h2 {
        font-size: 2rem;
    }
    
    .partner-logos {
        justify-content: center;
        margin-top: 1rem;
    }
    
    .partner-logo {
        height: 40px;
    }
}

/* Animation classes */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--link-hover-color);
}

.footer-content a {
    color: var(--text-color);
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.footer-content a:hover {
    opacity: 1;
}

/* Technology Partners Styles */
.tech-partners h3 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    color: var(--highlight-1);
}

.partner-logos {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    align-items: center;
    justify-content: center;
}

.tech-partners a {
    display: flex;
    justify-content: center;
    align-items: center;
}

.partner-logo {
    height: 45px;
    width: 200px;
    max-width: 180px;
    object-fit: contain;
    transition: all 0.3s ease;
    filter: grayscale(20%);
}

.partner-logo:hover {
    opacity: 1;
    filter: grayscale(0%);
    transform: scale(1.05);
}

.tech-partners a:focus {
    outline: 2px solid var(--highlight-1);
    border-radius: 4px;
}

.tech-partners a:focus .partner-logo {
    opacity: 1;
    filter: grayscale(0%);
}

/* Calculator Styles */
.calculator-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    z-index: 2000;
    padding: 2rem;
    overflow-y: auto;
    backdrop-filter: blur(5px);
}

.calculator-content {
    background: var(--card-bg);
    max-width: 700px;
    margin: 2rem auto;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    position: relative;
}

.calculator-content h2 {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    color: var(--highlight-2);
    letter-spacing: -0.01em;
}

.calculator-content > p {
    font-size: 1.1rem;
    opacity: 0.8;
    margin-bottom: 2rem;
}

.calculator-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.calculator-close:hover {
    opacity: 1;
}

.api-list {
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: var(--bg-color);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.api-list h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--highlight-2);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.api-list h3 i {
    width: 18px;
    height: 18px;
}

.included-apis {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.api-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.9rem;
}

.api-badge i {
    width: 16px;
    height: 16px;
    color: var(--highlight-2);
}

.calculator-form {
    margin: 2rem 0;
}

.form-group {
    margin-bottom: 1.5rem;
    background: var(--bg-color);
    padding: 1.25rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.form-group label {
    display: block;
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--highlight-2);
}

.radio-group {
    display: flex;
    gap: 2rem;
}

.radio-group label {
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    font-weight: normal;
    color: var(--text-color);
}

.radio-group input[type="radio"] {
    width: 16px;
    height: 16px;
    accent-color: var(--highlight-2);
}

.result-box {
    background: var(--bg-color);
    padding: 1.5rem;
    border-radius: 12px;
    margin-top: 2rem;
    border: 1px solid var(--highlight-2);
}

.result-box h3 {
    font-size: 1.2rem;
    color: var(--highlight-2);
    margin-bottom: 1rem;
}

.result-box p {
    font-size: 1.1rem;
    margin: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.result-box p i {
    width: 18px;
    height: 18px;
    color: var(--highlight-2);
}

@media (max-width: 768px) {
    .calculator-content {
        padding: 1.5rem;
        margin: 1rem;
    }

    .included-apis {
        gap: 0.5rem;
    }

    .api-badge {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }

    .radio-group {
        flex-direction: column;
        gap: 0.75rem;
    }
}

.pricing-subtitle {
    font-size: 1.2rem;
    line-height: 1.5;
    max-width: 600px;
    margin: 0 auto 3rem;
    text-align: center;
    color: var(--text-color);
    opacity: 0.8;
}

.calculator-trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, var(--highlight-1), var(--highlight-2));
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.calculator-trigger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.calculator-trigger i {
    width: 20px;
    height: 20px;
}

.calculator-section {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
}

.calculator-card {
    max-width: 400px;
    background: linear-gradient(145deg, var(--highlight-1), var(--highlight-2));
}

.calculator-card h3,
.calculator-card p {
    color: white;
}

.calculator-icon {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 1.5rem;
}

.calculator-intro {
    margin: 1.5rem 0;
}

.calculator-intro p {
    margin: 0.75rem 0;
    opacity: 0.9;
}

.calculator-card .cta-button {
    background: var(--card-bg);
    color: var(--highlight-1);
}

.calculator-card .cta-button:hover {
    background: var(--bg-color);
    color: var(--highlight-1);
}

.screenshot-showcase {
    margin: 4rem auto;
    max-width: 1000px;
    position: relative;
    padding: 2rem;
}

.screenshot-container {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    background: var(--card-bg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.screenshot-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.screenshot-container img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
}

.screenshot-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(59, 99, 168, 0.1), rgba(124, 185, 242, 0.1));
    pointer-events: none;
}

.screenshot-caption {
    text-align: center;
    margin-top: 2rem;
    font-size: 1.2rem;
    color: var(--text-color);
    opacity: 0.9;
}

/* Add glow effect in dark mode */
[data-theme="dark"] .screenshot-container {
    box-shadow: 0 8px 30px rgba(124, 185, 242, 0.1);
}

[data-theme="dark"] .screenshot-container:hover {
    box-shadow: 0 12px 40px rgba(124, 185, 242, 0.15);
}

@media (max-width: 768px) {
    .screenshot-showcase {
        padding: 1rem;
        margin: 2rem auto;
    }
}

.legal-links {
    margin-top: 3rem;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.6;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.legal-links a {
    color: var(--text-color);
    text-decoration: none;
    margin: 0 1rem;
    transition: opacity 0.3s ease;
}

.legal-links a:hover {
    opacity: 0.9;
}