:root {
    --bg-dark: #0d1117;
    --bg-card: #161b22;
    --bg-darker: #010409;
    --primary: #10b981;
    --primary-hover: #34d399;
    --primary-glow: rgba(16, 185, 129, 0.4);
    --accent: #58a6ff;
    --text-main: #c9d1d9;
    --text-muted: #8b949e;
    --white: #f0f6fc;
}

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

body {
    font-family: 'Segoe UI', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
}

/* Layout */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

section { padding: 80px 0; }
.bg-darker { background-color: var(--bg-darker); }
.text-center { text-align: center; }

/* Header */
.site-header {
    background: rgba(13, 17, 23, 0.95);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid #30363d;
    backdrop-filter: blur(10px);
}

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

.site-logo svg { height: 55px; width: auto; }

.desktop-nav a {
    color: var(--text-main);
    text-decoration: none;
    margin-left: 25px;
    font-weight: 600;
    transition: 0.2s;
}

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

/* Hero */
.hero {
    text-align: center;
    padding: 100px 20px;
    background: radial-gradient(circle at center, #1c2128 0%, #0d1117 100%);
}

.hero h1 {
    font-size: 3.5rem;
    color: var(--white);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 30px;
}

.hero-badges {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 20px;
    font-size: 0.9rem;
    color: var(--accent);
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 28px;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    transition: 0.3s;
    border: 1px solid var(--primary);
}

.btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--primary-glow);
}

.btn-large { font-size: 1.2rem; padding: 16px 32px; }

.btn-outline {
    background: transparent;
    border: 1px solid #30363d;
    color: var(--text-main);
}

.btn-outline:hover {
    border-color: var(--text-main);
    background: rgba(255,255,255,0.05);
}

/* Grid & Cards */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    color: var(--white);
    margin-bottom: 50px;
}

.card {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #30363d;
    text-align: center;
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
}

.card-icon { font-size: 2.5rem; margin-bottom: 20px; }
.card h3 { color: var(--white); margin-bottom: 10px; }
.card p { color: var(--text-muted); font-size: 0.95rem; }

/* Planos */
.plan-card {
    display: flex;
    flex-direction: column;
    position: relative;
}

.featured-plan {
    border-color: var(--accent);
    box-shadow: 0 0 20px rgba(88, 166, 255, 0.1);
    transform: scale(1.05);
}

.featured-plan:hover { transform: scale(1.08); }

.popular-tag {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #000;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
}

.price {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--white);
    margin: 20px 0;
}

.price span { font-size: 1rem; color: var(--text-muted); font-weight: normal; }

.features-list {
    list-style: none;
    margin-bottom: 30px;
    text-align: left;
}

.features-list li {
    border-bottom: 1px solid #30363d;
    padding: 10px 0;
    color: var(--text-muted);
}

/* Dispositivos */
.devices-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
}

.device-badge {
    background: #21262d;
    padding: 8px 16px;
    border-radius: 50px;
    border: 1px solid #30363d;
    font-size: 0.9rem;
}

/* FAQ */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
}

.faq-item {
    background: var(--bg-card);
    padding: 25px;
    border-radius: 10px;
    border: 1px solid #30363d;
    transition: 0.3s;
}

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

.faq-item h4 {
    color: var(--white);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.faq-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Stats Section */
.stats-section {
    background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
    padding: 50px 0;
    border-top: 1px solid #30363d;
    border-bottom: 1px solid #30363d;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary);
    margin-bottom: 5px;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 25px;
}

.content-item {
    background: var(--bg-card);
    padding: 25px 20px;
    border-radius: 12px;
    border: 1px solid #30363d;
    text-align: center;
    transition: 0.3s;
}

.content-item:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
}

.content-icon {
    font-size: 2.2rem;
    display: block;
    margin-bottom: 15px;
}

.content-item h4 {
    color: var(--white);
    margin-bottom: 8px;
    font-size: 1rem;
}

.content-item p {
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.5;
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #30363d;
    transition: 0.3s;
}

.testimonial-card:hover {
    border-color: var(--primary);
}

.testimonial-stars {
    color: #fbbf24;
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.testimonial-text {
    color: var(--text-main);
    font-style: italic;
    margin-bottom: 20px;
    line-height: 1.6;
}

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

.author-avatar {
    width: 45px;
    height: 45px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: white;
    font-size: 0.9rem;
}

.author-info strong {
    display: block;
    color: var(--white);
    font-size: 0.95rem;
}

.author-info span {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Guarantees */
.guarantees-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
}

.guarantee-item {
    text-align: center;
    padding: 30px 20px;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid #30363d;
    transition: 0.3s;
}

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

.guarantee-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 15px;
}

.guarantee-item h4 {
    color: var(--white);
    margin-bottom: 8px;
}

.guarantee-item p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Footer */
.site-footer {
    background: var(--bg-darker);
    padding: 60px 0 30px;
    border-top: 1px solid #30363d;
    margin-top: 0;
}

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

.footer-logo svg {
    height: 40px;
    width: auto;
    margin-bottom: 15px;
}

.footer-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 15px;
    font-size: 1rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: 0.2s;
}

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

.payment-methods {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.payment-badge {
    background: #21262d;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-main);
    border: 1px solid #30363d;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #30363d;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #25D366;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.5);
    transition: 0.3s;
    z-index: 9999;
}

.whatsapp-float:hover { transform: scale(1.1); }
.whatsapp-float svg { width: 35px; height: 35px; }

/* Scroll Reveal Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }

/* Hero animation */
.hero h1 {
    animation: heroFadeIn 0.8s ease-out forwards;
}

.hero p {
    animation: heroFadeIn 0.8s ease-out 0.2s forwards;
    opacity: 0;
}

.hero .btn {
    animation: heroFadeIn 0.8s ease-out 0.4s forwards;
    opacity: 0;
}

.hero-badges {
    animation: heroFadeIn 0.8s ease-out 0.6s forwards;
    opacity: 0;
}

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Pulse animation for WhatsApp button */
.whatsapp-float {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 5px 20px rgba(37, 211, 102, 0.5);
    }
    50% {
        box-shadow: 0 5px 30px rgba(37, 211, 102, 0.8);
    }
}

/* Mobile */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.2rem; }
    .header-inner { flex-direction: column; gap: 15px; }
    .desktop-nav a { margin: 0 10px; font-size: 0.9rem; }
    .featured-plan { transform: none; }
    .featured-plan:hover { transform: translateY(-5px); }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .stat-number { font-size: 1.8rem; }

    .content-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .payment-methods {
        justify-content: center;
    }

    .testimonial-author {
        justify-content: center;
    }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    .fade-up,
    .hero h1,
    .hero p,
    .hero .btn,
    .hero-badges,
    .whatsapp-float {
        animation: none;
        opacity: 1;
        transform: none;
        transition: none;
    }
}