/* CSS Variables - Color Theme */
:root {
    --color-primary-teal: #0EA5E9;
    --color-primary-violet: #8B5CF6;
    --color-accent-coral: #F472B6;
    --color-bg-light: #FAFAFA;
    --color-text-dark: #1E293B;
    --color-text-muted: #64748B;
    --color-white: #FFFFFF;
    --color-border: #E2E8F0;

    --gradient-primary: linear-gradient(135deg, var(--color-primary-teal) 0%, var(--color-primary-violet) 100%);
    --gradient-hero: linear-gradient(180deg, var(--color-bg-light) 0%, rgba(14, 165, 233, 0.05) 50%, rgba(139, 92, 246, 0.05) 100%);

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    --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);

    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-dark);
    background-color: var(--color-bg-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: var(--color-primary-teal);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-violet);
}

ul {
    list-style: none;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(250, 250, 250, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-dark);
    letter-spacing: 0.05em;
}

.logo-accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
}

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

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--color-white);
}

.btn-secondary {
    background: var(--color-white);
    color: var(--color-primary-violet);
    border: 2px solid var(--color-primary-violet);
}

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

/* Hero Section */
.hero {
    padding: calc(4rem + var(--spacing-3xl)) var(--spacing-md) var(--spacing-3xl);
    background: var(--gradient-hero);
    text-align: center;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-title {
    margin-bottom: var(--spacing-md);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    max-width: 800px;
    margin: 0 auto var(--spacing-md);
    font-size: 1.125rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

.hero-tagline {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-xl);
}

/* Section Styles */
section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
    margin: var(--spacing-sm) auto 0;
}

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

.about-content {
    display: grid;
    gap: var(--spacing-2xl);
}

.about-text {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-muted);
    font-size: 1.0625rem;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.feature {
    background: var(--color-bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
}

.feature h3 {
    margin-bottom: var(--spacing-xs);
}

.feature p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

/* Products Section */
.products {
    background: var(--gradient-hero);
}

.product-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.product-name {
    font-size: 2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

.product-description {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    font-size: 1.0625rem;
    line-height: 1.7;
}

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

.contact-intro {
    text-align: center;
    color: var(--color-text-muted);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    max-width: 600px;
    margin: 0 auto;
}

.contact-card {
    background: var(--color-bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.contact-card h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.25rem;
}

.contact-card a {
    font-size: 1rem;
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--color-text-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-logo {
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.footer-nav {
    display: flex;
    gap: var(--spacing-lg);
}

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

.footer-nav a:hover {
    color: var(--color-white);
}

.copyright {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Legal Pages */
.legal-page {
    padding-top: calc(4rem + var(--spacing-2xl));
    padding-bottom: var(--spacing-3xl);
    background: var(--color-white);
    min-height: 100vh;
}

.legal-page h1 {
    margin-bottom: var(--spacing-xs);
}

.last-updated {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-2xl);
}

.legal-section {
    margin-bottom: var(--spacing-xl);
}

.legal-section h2 {
    font-size: 1.375rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid var(--color-border);
}

.legal-section h3 {
    font-size: 1.125rem;
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.legal-section p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-muted);
}

.legal-section ul {
    list-style: disc;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.legal-section li {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: calc(4rem + var(--spacing-xl)) var(--spacing-md) var(--spacing-2xl);
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    section {
        padding: var(--spacing-2xl) 0;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-nav {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .btn {
        width: 100%;
        padding: 1rem;
    }

    .product-card {
        padding: var(--spacing-lg);
    }

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

    .contact-cards {
        grid-template-columns: 1fr;
    }
}