/* CSS Variables */
:root {
    --color-primary: #1a365d;
    --color-primary-dark: #0f2442;
    --color-primary-light: #2c5282;
    --color-accent: #1a5f2a;
    --color-accent-light: #2d7a3e;
    --color-text: #1a202c;
    --color-text-light: #4a5568;
    --color-text-muted: #718096;
    --color-background: #ffffff;
    --color-background-alt: #f7fafc;
    --color-border: #e2e8f0;
    --color-border-light: #edf2f7;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --transition: 0.2s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
}

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

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text);
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }

p {
    color: var(--color-text-light);
}

.lead {
    font-size: 1.125rem;
    line-height: 1.7;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 1.5px solid var(--color-border);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 1.5px solid var(--color-primary);
}

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

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

.btn-app:hover {
    background-color: var(--color-accent-light);
}

.btn.disabled {
    opacity: 0.7;
    cursor: default;
    pointer-events: none;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-light);
    transition: all var(--transition);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.125rem;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    font-weight: 700;
    font-size: 1.125rem;
    border-radius: var(--radius-md);
}

.logo-icon-svg {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-light);
    transition: color var(--transition);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text);
    transition: all var(--transition);
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(180deg, var(--color-background-alt) 0%, var(--color-background) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.7;
    margin-bottom: 32px;
    color: var(--color-text-light);
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-illustration {
    width: 400px;
    height: 400px;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* Section Styles */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background-color: var(--color-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-header h2 {
    margin-bottom: 16px;
}

/* About Section */
.about {
    background-color: var(--color-background);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-content p {
    margin-bottom: 16px;
}

.about-stats {
    display: grid;
    gap: 20px;
}

.stat-card {
    padding: 28px 32px;
    background-color: var(--color-background-alt);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.9375rem;
    color: var(--color-text-light);
}

/* Apps Section */
.apps {
    background-color: var(--color-background-alt);
}

.apps-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 32px;
}

.app-card {
    background-color: var(--color-background);
    border-radius: var(--radius-xl);
    padding: 40px;
    border: 1px solid var(--color-border-light);
    transition: all var(--transition);
}

.app-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.app-card.featured {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 32px;
}

.app-card.coming-soon {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    justify-content: center;
}

.app-icon {
    flex-shrink: 0;
}

.app-icon svg {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.app-badge {
    display: inline-block;
    padding: 4px 12px;
    background-color: var(--color-accent);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 12px;
}

.app-content h3 {
    font-size: 1.5rem;
    margin-bottom: 4px;
}

.app-tagline {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    margin-bottom: 16px;
}

.app-description {
    margin-bottom: 20px;
}

.app-features {
    margin-bottom: 20px;
}

.app-features li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 8px;
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

.app-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 50%;
}

.app-platforms {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
}

.platform-badge {
    padding: 4px 12px;
    background-color: var(--color-background-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-text-light);
}

/* Values Section */
.values {
    background-color: var(--color-background);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.value-card {
    padding: 32px 24px;
    text-align: center;
}

.value-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background-color: var(--color-background-alt);
    border-radius: var(--radius-lg);
    color: var(--color-primary);
}

.value-icon svg {
    width: 28px;
    height: 28px;
}

.value-card h3 {
    margin-bottom: 12px;
    font-size: 1.125rem;
}

.value-card p {
    font-size: 0.9375rem;
}

/* Contact Section */
.contact {
    background-color: var(--color-background-alt);
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-content > p {
    margin-bottom: 32px;
    font-size: 1.125rem;
}

.contact-methods {
    display: flex;
    justify-content: center;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px 32px;
    background-color: var(--color-background);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
    transition: all var(--transition);
}

.contact-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background-color: var(--color-background-alt);
    border-radius: var(--radius-md);
    color: var(--color-primary);
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-details {
    text-align: left;
}

.contact-label {
    display: block;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-bottom: 2px;
}

.contact-value {
    font-weight: 500;
    color: var(--color-text);
}

/* Footer */
.footer {
    background-color: var(--color-primary-dark);
    color: white;
    padding: 60px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand .logo-icon {
    background: rgba(255, 255, 255, 0.2);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-column h4 {
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    transition: color var(--transition);
}

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

.footer-bottom {
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .apps-grid {
        grid-template-columns: 1fr;
    }

    .app-card.featured {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .app-icon {
        margin: 0 auto;
    }

    .app-features {
        text-align: left;
        max-width: 400px;
        margin: 0 auto 20px;
    }

    .app-platforms {
        justify-content: center;
    }

    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--color-background);
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
    }

    .nav-links.active {
        display: flex;
    }

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

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

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

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    section {
        padding: 60px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .values-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-links {
        flex-direction: column;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .btn {
        width: 100%;
    }

    .hero-cta {
        flex-direction: column;
    }

    .app-card {
        padding: 24px;
    }
}