/* =====================================================
   PRADO TECNOLOGIA - Landing Page Styles
   ===================================================== */

:root {
    /* Colors */
    --primary: #1a365d;
    --primary-light: #2c5282;
    --secondary: #4a5568;
    --accent: #3182ce;
    --background: #f7fafc;
    --surface: #ffffff;
    --text: #2d3748;
    --text-light: #718096;
    --border: #e2e8f0;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --container-width: 1200px;
    --section-padding: 100px;
    
    /* Transitions */
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text);
    background: var(--background);
    line-height: 1.6;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* =====================================================
   HEADER
   ===================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--primary);
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--accent);
}

.nav {
    display: flex;
    gap: 32px;
}

.nav a {
    color: var(--secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

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

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

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

/* =====================================================
   HERO SECTION
   ===================================================== */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(180deg, var(--surface) 0%, var(--background) 100%);
}

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

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    color: var(--primary);
    margin-bottom: 24px;
}

.hero .highlight {
    color: var(--accent);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 32px;
    max-width: 500px;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(49, 130, 206, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-full {
    width: 100%;
}

/* Hero Visual */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-graphic {
    position: relative;
    width: 400px;
    height: 400px;
}

.orbit {
    position: absolute;
    border: 2px solid var(--border);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.orbit-1 {
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.orbit-2 {
    width: 70%;
    height: 70%;
    top: 15%;
    left: 15%;
    animation-duration: 15s;
    animation-direction: reverse;
}

.orbit-3 {
    width: 40%;
    height: 40%;
    top: 30%;
    left: 30%;
    animation-duration: 10s;
}

.center-dot {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--accent);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 30px rgba(49, 130, 206, 0.5);
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* =====================================================
   PRODUCTS SECTION
   ===================================================== */
.products {
    padding: var(--section-padding) 0;
    background: var(--surface);
}

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

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.product-card {
    position: relative;
    background: var(--background);
    border-radius: 16px;
    padding: 32px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.product-card.featured {
    border: 2px solid var(--accent);
}

.product-badge {
    position: absolute;
    top: -12px;
    right: 24px;
    background: var(--accent);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.product-icon {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
}

.product-card h3 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.product-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.7;
}

.product-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.product-link:hover {
    color: var(--primary);
}

/* =====================================================
   ABOUT SECTION
   ===================================================== */
.about {
    padding: var(--section-padding) 0;
    background: var(--background);
}

.about-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.about-content h2 {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 16px;
}

.about-intro {
    font-size: 1.125rem;
    color: var(--text-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature {
    background: var(--surface);
    padding: 32px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.feature:hover {
    border-color: var(--accent);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: rgba(49, 130, 206, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--accent);
}

.feature h3 {
    font-size: 1.125rem;
    color: var(--primary);
    margin-bottom: 8px;
}

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

/* =====================================================
   CONTACT SECTION
   ===================================================== */
.contact {
    padding: var(--section-padding) 0;
    background: var(--primary);
}

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

.contact-info h2 {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 16px;
}

.contact-info p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
}

.privacy-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    padding: 12px 20px;
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.875rem;
}

.contact-form {
    background: var(--surface);
    padding: 40px;
    border-radius: 16px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    font-family: inherit;
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-status {
    margin-top: 16px;
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    display: none;
}

.form-status.success {
    display: block;
    background: #c6f6d5;
    color: #22543d;
}

.form-status.error {
    display: block;
    background: #fed7d7;
    color: #742a2a;
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
    padding: 40px 0;
    background: #0f172a;
}

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

.footer-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    font-weight: 600;
}

.footer-brand .logo-icon {
    color: var(--accent);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-copy 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-visual {
        display: none;
    }
    
    .hero-subtitle {
        max-width: 100%;
    }
    
    .hero-ctas {
        justify-content: center;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }
    
    .nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
}