/* ========================================
   Landing Page - Diseño Moderno
   ======================================== */

:root {
    --primary: #25D366;
    --primary-dark: #128C7E;
    --secondary: #075E54;
    --accent: #34B7F1;
    --dark: #1a1a2e;
    --light: #f8f9fa;
    --gradient-primary: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    --gradient-hero: linear-gradient(135deg, #02a780 0%, #006291 100%);
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 15px 50px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* ========== NAVBAR ========== */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-md);
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary) !important;
    display: flex;
    align-items: center;
    gap: 10px;
}

.navbar-brand i {
    font-size: 2rem;
}

.nav-link {
    color: #333 !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--primary) !important;
}

.navbar .btn-primary {
    background: var(--gradient-primary);
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
    transition: all 0.3s ease;
}

.navbar .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

/* ========== HERO SECTION ========== */
.hero {
    background: var(--gradient-hero);
    color: white;
    padding: 150px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.hero-buttons .btn-light {
    background: white;
    color: #667eea;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.hero-buttons .btn-light:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
}

.hero-buttons .btn-outline-light {
    border: 2px solid white;
    color: white;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.hero-buttons .btn-outline-light:hover {
    background: white;
    color: #667eea;
}

.hero-image img {
    width: 100%;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: float 6s ease-in-out infinite;
}

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

/* ========== STATS ========== */
.stats {
    background: white;
    padding: 60px 0;
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 2;
    margin-top: -50px;
    border-radius: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    color: #666;
    font-weight: 500;
}

/* ========== FEATURES ========== */
.features {
    padding: 100px 0;
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
}

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

.section-title h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 1rem;
}

.section-title p {
    font-size: 1.2rem;
    color: #666;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    height: 100%;
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.3);
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

.feature-card h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--dark);
}

.feature-card p {
    color: #666;
    line-height: 1.8;
}

/* ========== HOW IT WORKS ========== */
.how-it-works {
    padding: 100px 0;
    background: #003757;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpattern id='dots' x='0' y='0' width='0.4' height='0.4' patternUnits='userSpaceOnUse'%3E%3Ccircle cx='0.1' cy='0.1' r='0.008' fill='rgba(255,255,255,0.3)'/%3E%3C/pattern%3E%3Crect x='0' y='0' width='100%25' height='100%25' fill='url(%23dots)'/%3E%3C/svg%3E");
    color: white;
}

.how-it-works .section-title h2,
.how-it-works .section-title p {
    color: white;
}

.step-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    height: 100%;
}

.step-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-10px);
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin: 0 auto 20px;
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.3);
}

.step-card h4 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.step-card p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* ========== PRICING ========== */
.pricing {
    padding: 100px 0;
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
}

.pricing-card {
    background: white;
    padding: 40px 30px;
    border-radius: 25px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    position: relative;
    border: 2px solid transparent;
    height: 100%;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.pricing-card.featured {
    background: var(--gradient-hero);
    color: white;
    border-color: transparent;
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.08) translateY(-10px);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    right: 30px;
    background: #FFD700;
    color: #333;
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
}

.pricing-card h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.pricing-card .price {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.pricing-card .price small {
    font-size: 1.2rem;
    font-weight: 500;
    opacity: 0.8;
}

.price-annual {
    background: rgba(37, 211, 102, 0.1);
    padding: 10px 15px;
    border-radius: 10px;
    font-size: 0.9rem;
    margin-bottom: 20px;
    color: var(--primary);
    font-weight: 600;
}

.pricing-card.featured .price-annual {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.features-list {
    list-style: none;
    padding: 0;
    margin: 30px 0;
}

.features-list li {
    padding: 12px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.pricing-card.featured .features-list li {
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.features-list i {
    color: var(--primary);
    font-size: 1.2rem;
}

.pricing-card.featured .features-list i {
    color: #FFD700;
}

.pricing-card .btn {
    width: 100%;
    padding: 15px;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.pricing-card.featured .btn-primary {
    background: white;
    color: #667eea;
    border: none;
}

.pricing-card.featured .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

/* ========== PAYMENT METHODS ========== */
.payment-methods {
    padding: 80px 0;
    background: white;
}

.payment-methods .section-title {
    margin-bottom: 50px;
}

.payment-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.payment-item {
    background: white;
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    text-align: center;
    min-width: 180px;
}

.payment-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.payment-item img {
    height: 50px;
    width: auto;
    margin-bottom: 15px;    
    transition: filter 0.3s ease;
}

.payment-item:hover img {
    filter: grayscale(0%);
}

.payment-item p {
    margin: 0;
    font-weight: 600;
    color: #666;
}

.payment-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(37, 211, 102, 0.1);
    color: var(--primary);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-top: 10px;
}

/* ========== TESTIMONIALS ========== */
.testimonials {
    padding: 100px 0;
    background: var(--gradient-hero);
    color: white;
}

.testimonials .section-title h2,
.testimonials .section-title p {
    color: white;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    height: 100%;
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
}

.testimonial-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.testimonial-info h5 {
    margin: 0;
    font-weight: 700;
}

.testimonial-info p {
    margin: 0;
    opacity: 0.8;
    font-size: 0.9rem;
}

.testimonial-text {
    font-size: 1.1rem;
    line-height: 1.8;
    font-style: italic;
    opacity: 0.95;
}

.testimonial-rating {
    color: #FFD700;
    font-size: 1.2rem;
    margin-top: 15px;
}

/* ========== FAQ ========== */
.faq {
    padding: 100px 0;
    background: white;
}

.faq-item {
    background: white;
    border: 2px solid #f0f0f0;
    border-radius: 15px;
    margin-bottom: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--primary);
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    font-weight: 700;
    font-size: 1.1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--dark);
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: rgba(37, 211, 102, 0.05);
}

.faq-question i {
    color: var(--primary);
    transition: transform 0.3s ease;
}

.faq-question.active i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-answer.active {
    padding: 25px 30px;
    max-height: 500px;
}

.faq-answer p {
    color: #666;
    line-height: 1.8;
    margin: 0;
}

/* ========== CTA ========== */
.cta {
    background: var(--gradient-primary);
    color: white;
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
}

.cta .container {
    position: relative;
    z-index: 1;
}

.cta h2 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.cta p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.95;
}

.cta .btn {
    padding: 1.2rem 3rem;
    font-size: 1.2rem;
    border-radius: 50px;
    font-weight: 700;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.cta .btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

/* ========== FOOTER ========== */
footer {
    background: var(--dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

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

footer p {
    margin: 20px 0 0;
    opacity: 0.7;
}

/* ========== WHATSAPP FLOATING BUTTON ========== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 70px;
    height: 70px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 1000;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 40px rgba(37, 211, 102, 0.5);
}

.whatsapp-float i {
    font-size: 2.5rem;
    color: white;
}

.whatsapp-tooltip {
    position: absolute;
    right: 85px;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    color: #333;
    padding: 12px 20px;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    font-weight: 600;
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 8px 30px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 8px 40px rgba(37, 211, 102, 0.6);
    }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
    
    .whatsapp-float {
        width: 60px;
        height: 60px;
        bottom: 20px;
        right: 20px;
    }
    
    .whatsapp-float i {
        font-size: 2rem;
    }
    
    .whatsapp-tooltip {
        display: none;
    }
}

@media (max-width: 576px) {
    .hero {
        padding: 120px 0 60px;
    }
    
    .stats {
        margin-top: 0;
        border-radius: 0;
    }
    
    .payment-grid {
        gap: 20px;
    }
    
    .payment-item {
        min-width: 140px;
        padding: 20px;
    }
}

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}