/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #f59e0b;
    --accent-color: #10b981;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-dark: #111827;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
}

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

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

/* Gradient Text */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn-primary {
    background: var(--gradient-primary);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    padding: 12px 24px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-hero {
    background: var(--gradient-primary);
    color: white;
    padding: 16px 32px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    font-size: 18px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-lg);
}

.btn-hero:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-brand i {
    color: var(--primary-color);
    font-size: 28px;
}

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

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

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

.mobile-menu-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0.1;
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 80%, var(--primary-color) 2px, transparent 2px),
        radial-gradient(circle at 80% 20%, var(--secondary-color) 2px, transparent 2px),
        radial-gradient(circle at 40% 40%, var(--accent-color) 2px, transparent 2px);
    background-size: 100px 100px, 150px 150px, 200px 200px;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 2;
    padding-top: 100px;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 24px;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 32px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

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

.mockup-container {
    position: relative;
    transform: perspective(1000px) rotateY(-15deg) rotateX(10deg);
    transition: transform 0.3s ease;
}

.mockup-container:hover {
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
}

.mockup-screen {
    background: #1f2937;
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.mockup-browser {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.browser-header {
    background: #f3f4f6;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--border-color);
}

.browser-buttons {
    display: flex;
    gap: 8px;
}

.browser-buttons span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.btn-close { background: #ef4444; }
.btn-minimize { background: #f59e0b; }
.btn-maximize { background: #10b981; }

.browser-url {
    background: white;
    padding: 8px 12px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    font-size: 14px;
    color: var(--text-secondary);
}

.browser-url i {
    color: var(--accent-color);
}

.browser-content {
    padding: 40px;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.demo-banner {
    background: var(--gradient-primary);
    color: white;
    padding: 20px 40px;
    border-radius: 8px;
    position: relative;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.banner-highlight {
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    background: linear-gradient(45deg, var(--secondary-color), var(--accent-color));
    border-radius: 12px;
    z-index: -1;
    animation: rotate 3s linear infinite;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Features Section */
.features {
    padding: 120px 0;
    background: var(--bg-primary);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-header p {
    font-size: 20px;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.feature-icon i {
    font-size: 32px;
    color: white;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

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

/* Benefits Section */
.benefits {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.benefits-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.benefits-text h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 40px;
    color: var(--text-primary);
}

.benefit-item {
    display: flex;
    gap: 20px;
    margin-bottom: 32px;
}

.benefit-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.benefit-icon i {
    font-size: 24px;
    color: white;
}

.benefit-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.benefit-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.stats-card {
    background: white;
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 32px;
}

.stat-item:last-child {
    margin-bottom: 0;
}

.stat-value {
    font-size: 48px;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-desc {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Registration Section */
.registration {
    padding: 120px 0;
    background: var(--bg-dark);
    color: white;
}

.registration-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.registration-info h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 24px;
}

.registration-info p {
    font-size: 20px;
    color: #d1d5db;
    margin-bottom: 40px;
    line-height: 1.6;
}

.offer-highlights {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 16px;
    color: #d1d5db;
}

.highlight-item i {
    color: var(--secondary-color);
    font-size: 20px;
}

.registration-form-container {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-xl);
}

.registration-form h3 {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.registration-form > p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-submit {
    width: 100%;
    background: var(--gradient-primary);
    color: white;
    padding: 16px;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 16px;
}

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

.btn-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.form-footer p {
    font-size: 14px;
    color: var(--text-light);
    text-align: center;
    line-height: 1.4;
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: #d1d5db;
    margin-top: 16px;
    line-height: 1.6;
}

.footer-contact h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-contact p {
    color: #d1d5db;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-contact i {
    color: var(--primary-color);
    width: 20px;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 20px;
    text-align: center;
    color: #9ca3af;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    backdrop-filter: blur(4px);
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    border-radius: 16px;
    padding: 40px;
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    text-align: center;
    margin-bottom: 24px;
}

.modal-header i {
    font-size: 48px;
    color: var(--accent-color);
    margin-bottom: 16px;
}

.modal-header.error i {
    color: #ef4444;
}

.modal-header h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-body p {
    color: var(--text-secondary);
    line-height: 1.6;
    text-align: center;
    margin-bottom: 24px;
}

.modal-footer {
    text-align: center;
}

/* Loading State */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 40px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .section-header h2 {
        font-size: 36px;
    }
    
    .benefits-content,
    .registration-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .benefits-text h2,
    .registration-info h2 {
        font-size: 36px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .benefits-text h2,
    .registration-info h2 {
        font-size: 28px;
    }
    
    .registration-form-container {
        padding: 24px;
    }
}