/* DDactic Sales Site Styles */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --text-dark: #2d3748;
    --text-light: #718096;
    --bg-light: #f7fafc;
    --white: #ffffff;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

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

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

/* Header */
.header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.nav-brand h1 {
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: 6rem 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    border: 2px solid transparent;
    cursor: pointer;
}

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

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

/* Sections */
section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.125rem;
    margin-bottom: 3rem;
}

/* Packages */
.packages {
    background: var(--bg-light);
}

.package-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.package-card {
    background: var(--white);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: all 0.3s;
    border: 2px solid var(--border-color);
}

.package-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.package-card.featured {
    border-color: var(--primary-color);
    border-width: 3px;
    position: relative;
}

.package-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.package-header h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
}

.package-badge {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.package-card.featured .package-badge {
    background: var(--accent-color);
}

.package-card h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.package-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    text-align: center;
}

.package-discount {
    font-size: 0.875rem;
    color: var(--secondary-color);
    text-align: center;
    margin-bottom: 1rem;
    padding: 0.5rem;
    background: linear-gradient(135deg, rgba(118, 75, 162, 0.1), rgba(102, 126, 234, 0.1));
    border-radius: 0.5rem;
    font-weight: 500;
}

.package-discount strong {
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 0.95rem;
}

.package-includes {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.package-features {
    list-style: none;
    margin-bottom: 2rem;
}

.package-features li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-dark);
}

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

/* Simulations */
.simulations {
    background: var(--white);
}

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

.simulation-card {
    background: var(--bg-light);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
}

.simulation-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.simulation-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.simulation-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.simulation-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Contact */
.contact {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    text-align: center;
}

.contact .section-title,
.contact .section-subtitle {
    color: var(--white);
}

.contact-info {
    max-width: 600px;
    margin: 0 auto;
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--white);
    text-align: center;
    padding: 2rem 0;
}

/* Package Detail Page */
.package-detail {
    padding: 4rem 0;
}

.package-detail-header {
    text-align: center;
    margin-bottom: 3rem;
}

.package-detail-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.package-detail-content {
    max-width: 800px;
    margin: 0 auto;
}

.package-detail-content h2 {
    font-size: 2rem;
    margin: 2rem 0 1rem;
    color: var(--text-dark);
}

.package-detail-content h3 {
    font-size: 1.5rem;
    margin: 1.5rem 0 0.75rem;
    color: var(--text-dark);
}

.package-detail-content p {
    margin-bottom: 1rem;
    color: var(--text-light);
    line-height: 1.8;
}

.package-detail-content ul {
    margin: 1rem 0 1rem 2rem;
    color: var(--text-light);
}

.package-detail-content li {
    margin-bottom: 0.5rem;
}

.back-link {
    display: inline-block;
    margin-bottom: 2rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.back-link:hover {
    text-decoration: underline;
}

/* Code elements */
code {
    background: var(--bg-light);
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    color: var(--primary-color);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .package-grid {
        grid-template-columns: 1fr;
    }
    
    .simulation-grid {
        grid-template-columns: 1fr;
    }
}