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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1f2937;
    background-color: #ffffff;
}

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

/* Header */
.header {
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-text {
    font-size: 24px;
    font-weight: 400;
    color: #1f2937;
}

.logo-text strong {
    font-weight: 700;
    color: #3B82F6;
}

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

.nav a {
    text-decoration: none;
    color: #6b7280;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav a:hover {
    color: #3B82F6;
}

.cta-button-header {
    background: #3B82F6;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cta-button-header:hover {
    background: #2563EB;
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

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

.breadcrumb {
    font-size: 14px;
    color: #6b7280;
    margin-bottom: 16px;
}

.breadcrumb .active {
    color: #3B82F6;
    font-weight: 500;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    color: #1f2937;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 20px;
    color: #6b7280;
    margin-bottom: 32px;
    line-height: 1.5;
}

.hero-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 24px;
    border-bottom: 1px solid #e5e7eb;
}

.author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.author-name {
    font-weight: 600;
    color: #1f2937;
    display: block;
}

.publish-date {
    font-size: 14px;
    color: #6b7280;
}

.reading-time {
    color: #6b7280;
    font-size: 14px;
}

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

.btn-primary, .btn-secondary {
    padding: 16px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: #3B82F6;
    color: white;
}

.btn-primary:hover {
    background: #2563EB;
    transform: translateY(-2px);
}

.btn-secondary {
    background: white;
    color: #3B82F6;
    border: 2px solid #3B82F6;
}

.btn-secondary:hover {
    background: #3B82F6;
    color: white;
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.hero-stats {
    position: absolute;
    bottom: -20px;
    right: 20px;
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    display: flex;
    gap: 24px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: #3B82F6;
}

.stat-label {
    font-size: 12px;
    color: #6b7280;
    margin-top: 4px;
}

/* Article Section */
.article-section {
    padding: 80px 0;
    background: #ffffff;
}

.article-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 60px;
}

.article-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.table-contents {
    background: #f8fafc;
    padding: 24px;
    border-radius: 12px;
    margin-bottom: 32px;
}

.table-contents h3 {
    margin-bottom: 16px;
    color: #1f2937;
}

.table-contents ul {
    list-style: none;
}

.table-contents li {
    margin-bottom: 8px;
}

.table-contents a {
    color: #6b7280;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.table-contents a:hover {
    color: #3B82F6;
}

.share-buttons {
    background: #f8fafc;
    padding: 24px;
    border-radius: 12px;
}

.share-buttons h4 {
    margin-bottom: 16px;
    color: #1f2937;
}

.social-buttons {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.social-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.social-btn.facebook {
    background: #1877f2;
    color: white;
}

.social-btn.twitter {
    background: #1da1f2;
    color: white;
}

.social-btn.whatsapp {
    background: #25d366;
    color: white;
}

.social-btn:hover {
    transform: translateY(-2px);
}

.article-main {
    max-width: none;
}

.article-block {
    margin-bottom: 48px;
}

.article-block h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
    color: #1f2937;
}

.article-block h3 {
    font-size: 24px;
    font-weight: 600;
    margin: 32px 0 16px;
    color: #1f2937;
}

.article-block p {
    font-size: 16px;
    line-height: 1.7;
    color: #4b5563;
    margin-bottom: 16px;
}

.info-box {
    padding: 20px;
    border-radius: 12px;
    margin: 24px 0;
    border-left: 4px solid;
}

.info-box.success {
    background: #f0fdf4;
    border-color: #10b981;
}

.info-box.warning {
    background: #fffbeb;
    border-color: #f59e0b;
}

.info-box h4 {
    margin-bottom: 8px;
    color: #1f2937;
}

.feature-list {
    list-style: none;
    margin: 24px 0;
}

.feature-list li {
    padding: 8px 0;
    font-size: 16px;
    color: #4b5563;
}

/* Cost Breakdown */
.cost-breakdown {
    margin: 32px 0;
}

.cost-category {
    background: #f8fafc;
    padding: 24px;
    border-radius: 12px;
    margin-bottom: 24px;
}

.cost-category h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: #1f2937;
}

.cost-items {
    margin-bottom: 16px;
}

.cost-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #e5e7eb;
}

.cost-item:last-child {
    border-bottom: none;
}

.cost-item span:last-child {
    font-weight: 600;
    color: #1f2937;
}

.cost-total {
    padding: 12px 0;
    text-align: right;
    border-top: 2px solid #3B82F6;
    color: #3B82F6;
}

.total-investment {
    background: linear-gradient(135deg, #3B82F6 0%, #1d4ed8 100%);
    color: white;
    padding: 24px;
    border-radius: 12px;
    text-align: center;
}

.total-investment h3 {
    margin: 0;
    font-size: 24px;
}

.highlight {
    font-size: 32px;
    font-weight: 700;
}

/* Operational Costs */
.operational-costs {
    background: #f8fafc;
    padding: 24px;
    border-radius: 12px;
    margin: 24px 0;
}

.cost-item-large {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid #e5e7eb;
    font-size: 16px;
}

.cost-item-large:last-of-type {
    border-bottom: none;
    margin-bottom: 16px;
}

.cost {
    font-weight: 600;
    color: #dc2626;
}

.cost-total-large {
    padding: 16px 0;
    border-top: 2px solid #3B82F6;
    text-align: right;
    color: #3B82F6;
    font-size: 18px;
}

/* Strategy Grid */
.strategy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin: 32px 0;
}

.strategy-card {
    background: #f8fafc;
    padding: 24px;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease;
}

.strategy-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.strategy-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.strategy-card h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1f2937;
}

.strategy-card p {
    color: #6b7280;
    margin: 0;
}

/* Tips List */
.tips-list {
    margin: 32px 0;
}

.tip-item {
    display: flex;
    gap: 20px;
    margin-bottom: 32px;
    align-items: flex-start;
}

.tip-number {
    background: #3B82F6;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
}

.tip-content h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #1f2937;
}

.tip-content p {
    margin: 0;
    color: #4b5563;
}

/* Features Section */
.features-section {
    padding: 80px 0;
    background: #f8fafc;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.feature-card {
    background: white;
    padding: 32px 24px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #1f2937;
}

.feature-card p {
    color: #6b7280;
    margin: 0;
    line-height: 1.6;
}

/* Calculator Section */
.calculator-section {
    padding: 80px 0;
    background: white;
}

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

.calculator-header {
    text-align: center;
    margin-bottom: 48px;
}

.calculator-header h2 {
    font-size: 36px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 16px;
}

.calculator-header p {
    font-size: 18px;
    color: #6b7280;
}

.calculator-form {
    background: #f8fafc;
    padding: 32px;
    border-radius: 16px;
    margin-bottom: 32px;
}

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

.input-group label {
    display: block;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 8px;
}

.input-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: #3B82F6;
}

.input-helper {
    font-size: 12px;
    color: #6b7280;
    margin-top: 4px;
    display: block;
}

.calculator-results {
    background: linear-gradient(135deg, #3B82F6 0%, #1d4ed8 100%);
    padding: 32px;
    border-radius: 16px;
    color: white;
    margin-bottom: 24px;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.result-item:last-child {
    border-bottom: none;
}

.result-label {
    font-size: 16px;
    opacity: 0.9;
}

.result-value {
    font-size: 20px;
    font-weight: 700;
}

.result-value.profit {
    color: #fbbf24;
}

.calculator-note {
    background: #fffbeb;
    padding: 16px;
    border-radius: 8px;
    border-left: 4px solid #f59e0b;
}

.calculator-note p {
    margin: 0;
    color: #92400e;
}

/* Testimonials Section */
.testimonials-section {
    padding: 80px 0;
    background: #f8fafc;
}

.testimonials-container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.testimonial-slider {
    overflow: hidden;
    position: relative;
}

.testimonial-item {
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.testimonial-item.active {
    display: block;
    opacity: 1;
}

.testimonial-content {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.stars {
    font-size: 24px;
    color: #fbbf24;
    margin-bottom: 20px;
}

.testimonial-content p {
    font-size: 18px;
    line-height: 1.6;
    color: #4b5563;
    margin-bottom: 32px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.author-info h4 {
    font-size: 16px;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 4px;
}

.author-info span {
    font-size: 14px;
    color: #6b7280;
}

.slider-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    margin-top: 32px;
}

.slider-btn {
    background: white;
    border: 2px solid #3B82F6;
    color: #3B82F6;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    background: #3B82F6;
    color: white;
}

.slider-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #d1d5db;
    cursor: pointer;
    transition: background 0.3s ease;
}

.dot.active {
    background: #3B82F6;
}

/* Promo Section */
.promo-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
}

.promo-banner {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 48px;
    align-items: center;
    background: white;
    padding: 48px;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.promo-badge {
    background: #dc2626;
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 16px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.promo-content h2 {
    font-size: 32px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 16px;
    line-height: 1.2;
}

.promo-content p {
    font-size: 18px;
    color: #4b5563;
    margin-bottom: 24px;
}

.strike {
    text-decoration: line-through;
    color: #dc2626;
}

.promo-features {
    margin-bottom: 32px;
}

.promo-feature {
    color: #059669;
    margin-bottom: 8px;
    font-weight: 500;
}

.promo-timer {
    margin-bottom: 32px;
}

.promo-timer > span {
    font-size: 16px;
    color: #6b7280;
    margin-bottom: 12px;
    display: block;
}

.timer {
    display: flex;
    gap: 16px;
}

.timer-item {
    background: #1f2937;
    color: white;
    padding: 12px 16px;
    border-radius: 8px;
    text-align: center;
    min-width: 60px;
}

.timer-item span {
    font-size: 24px;
    font-weight: 700;
    display: block;
}

.timer-item label {
    font-size: 12px;
    opacity: 0.8;
}

.btn-promo {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    padding: 18px 36px;
    border: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease;
    box-shadow: 0 8px 24px rgba(220, 38, 38, 0.3);
}

.btn-promo:hover {
    transform: translateY(-2px);
}

.promo-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 12px;
}

/* Final CTA Section */
.final-cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: white;
    text-align: center;
}

.final-cta-content h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.final-cta-content p {
    font-size: 20px;
    opacity: 0.9;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.btn-whatsapp {
    background: #25d366;
    color: white;
    padding: 18px 32px;
    border: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn-whatsapp:hover {
    background: #128c7e;
    transform: translateY(-2px);
}

.btn-calculator {
    background: transparent;
    color: white;
    padding: 18px 32px;
    border: 2px solid white;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-calculator:hover {
    background: white;
    color: #1f2937;
}

.trust-indicators {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.trust-item {
    text-align: center;
}

.trust-item strong {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: #fbbf24;
    margin-bottom: 8px;
}

.trust-item span {
    font-size: 16px;
    opacity: 0.8;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo-text {
    font-size: 24px;
    font-weight: 400;
}

.footer-logo-text strong {
    font-weight: 700;
    color: #3B82F6;
}

.footer-section p {
    color: #9ca3af;
    line-height: 1.6;
    margin-bottom: 24px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    font-size: 24px;
    transition: transform 0.3s ease;
}

.social-links a:hover {
    transform: scale(1.2);
}

.footer-section h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul a:hover {
    color: #3B82F6;
}

.contact-info p {
    margin-bottom: 8px;
    color: #9ca3af;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid #374151;
    flex-wrap: wrap;
}

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

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #3B82F6;
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #25d366;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.3);
    transition: all 0.3s ease;
    z-index: 1000;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

.whatsapp-float:hover {
    background: #128c7e;
    transform: scale(1.1);
}

.whatsapp-icon {
    font-size: 32px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }
    
    .header-content {
        height: 60px;
    }
    
    .nav {
        display: none;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-meta {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .article-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .article-sidebar {
        position: static;
        order: 2;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .strategy-grid {
        grid-template-columns: 1fr;
    }
    
    .promo-banner {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 32px 24px;
    }
    
    .promo-content h2 {
        font-size: 24px;
    }
    
    .timer {
        justify-content: center;
    }
    
    .final-cta-content h2 {
        font-size: 28px;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .trust-indicators {
        gap: 24px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }
    
    .whatsapp-icon {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .calculator-header h2 {
        font-size: 28px;
    }
    
    .article-block h2 {
        font-size: 24px;
    }
    
    .cost-breakdown,
    .operational-costs,
    .calculator-form {
        padding: 20px;
    }
    
    .cost-item,
    .cost-item-large {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .testimonial-content {
        padding: 24px;
    }
    
    .final-cta-content h2 {
        font-size: 24px;
    }
    
    .trust-item strong {
        font-size: 24px;
    }
}