:root {
    /* Colors - Dark Mode AI Aesthetic */
    --bg-dark: #050505;
    --bg-darker: #000000;
    --bg-card: rgba(20, 20, 25, 0.6);
    --bg-card-hover: rgba(30, 30, 40, 0.8);
    
    --text-main: #ffffff;
    --text-muted: #a0a0b0;
    
    --accent-blue: #00f0ff;
    --accent-purple: #7000ff;
    --accent-glow: rgba(0, 240, 255, 0.2);
    
    --border-color: rgba(255, 255, 255, 0.1);
    
    /* Typography */
    --font-sans: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Background Blobs for that "AI/Modern" feel */
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    z-index: -1;
    opacity: 0.5;
}
.blob-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
}
.blob-2 {
    top: 40%;
    right: -20%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--accent-blue) 0%, transparent 70%);
    opacity: 0.3;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 800;
    line-height: 1.2;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

.section {
    padding: var(--spacing-xl) 0;
}

.bg-darker {
    background-color: var(--bg-darker);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.text-gradient {
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition-normal);
    cursor: pointer;
    font-family: var(--font-heading);
}

.btn-primary {
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    color: white;
    border: none;
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
    box-shadow: 0 0 30px rgba(112, 0, 255, 0.4);
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 1px solid var(--border-color);
}
.btn-outline:hover {
    border-color: var(--accent-blue);
    background: rgba(0, 240, 255, 0.05);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 100;
    transition: var(--transition-fast);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    padding: 1rem 0;
    background: rgba(5, 5, 5, 0.8);
    border-bottom-color: var(--border-color);
}

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

.logo img {
    height: 100px;
    width: auto;
    max-width: 300px;
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition-fast);
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px; /* offset for nav */
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 90%;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.hero-note {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Hero Mockup (The AI vibe) */
.mockup-frame {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    position: relative;
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: var(--transition-normal);
}

.mockup-frame:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.mockup-header {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.75rem 1rem;
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.mockup-header span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ff5f56;
}
.mockup-header span:nth-child(2) { background: #ffbd2e; }
.mockup-header span:nth-child(3) { background: #27c93f; }

.mockup-body {
    padding: 1.5rem;
}

.mockup-skeleton {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    margin-bottom: 1rem;
    position: relative;
    overflow: hidden;
}

.mockup-skeleton::after {
    content: "";
    position: absolute;
    top: 0; left: -100%; width: 50%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
    animation: skeleton-load 2s infinite;
}

@keyframes skeleton-load {
    100% { left: 150%; }
}

.mockup-skeleton.banner { height: 120px; border-radius: 8px; }
.mockup-skeleton.title { height: 24px; width: 60%; }
.mockup-skeleton.text { height: 12px; width: 100%; margin-bottom: 0.5rem; }
.mockup-skeleton.text.short { width: 80%; }
.mockup-skeleton.button { height: 36px; width: 120px; border-radius: 50px; margin-top: 1rem; background: var(--accent-blue); opacity: 0.5; }

.mockup-ai-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: bold;
    box-shadow: 0 4px 10px var(--accent-glow);
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}
.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Grid Layouts */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

/* Cards (Diferenciais) */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 2.5rem 2rem;
    border-radius: 16px;
    transition: var(--transition-normal);
    backdrop-filter: blur(10px);
}
.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    background: var(--bg-card-hover);
}
.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}
.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}
.card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Features Split */
.feature-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.feature-text h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.feature-list li {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.feature-list .check {
    color: var(--accent-blue);
    font-size: 1.2rem;
    font-weight: bold;
}
.feature-list strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
}
.feature-list span {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Glass Panel (AI Animation area) */
.glass-panel {
    background: rgba(255,255,255,0.02);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3rem;
    text-align: center;
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}
.glass-panel::before {
    content: "";
    position: absolute;
    top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(0,240,255,0.1) 0%, transparent 60%);
    z-index: -1;
}

.ai-animation {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-animation .circle {
    position: absolute;
    border-radius: 50%;
    border: 2px dashed var(--accent-blue);
}
.ai-animation .outer { width: 100%; height: 100%; animation: spin 10s linear infinite; opacity: 0.5; }
.ai-animation .inner { width: 70%; height: 70%; border-color: var(--accent-purple); animation: spin-reverse 8s linear infinite; }
.ai-core { font-size: 3rem; position: relative; z-index: 2; animation: pulse 2s infinite alternate; }

@keyframes spin { 100% { transform: rotate(360deg); } }
@keyframes spin-reverse { 100% { transform: rotate(-360deg); } }
@keyframes pulse { 0% { transform: scale(0.9); } 100% { transform: scale(1.1); filter: drop-shadow(0 0 10px var(--accent-blue)); } }

.glass-panel h3 { font-size: 1.5rem; margin-bottom: 1rem; }
.glass-panel p { color: var(--text-muted); }

/* Público Cards */
.publico-grid { margin-top: 2rem; }
.publico-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition-normal);
}
.publico-card:hover {
    background: rgba(112, 0, 255, 0.1);
    border-color: var(--accent-purple);
}

/* Pricing Grid */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    align-items: stretch;
    margin-bottom: 4rem;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition-normal);
}

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

.pricing-card.popular {
    border-color: var(--accent-blue);
    background: rgba(0, 240, 255, 0.02);
    box-shadow: 0 10px 40px var(--accent-glow);
    transform: scale(1.05);
}
.pricing-card.popular:hover { transform: scale(1.05) translateY(-10px); }

.pricing-card.premium {
    border-color: var(--accent-purple);
}

.popular-badge, .premium-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-blue);
    color: #000;
    padding: 0.4rem 1.2rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
}
.premium-badge {
    background: var(--accent-purple);
    color: white;
}

.pricing-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.plan-name {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.plan-price {
    font-size: 3.5rem;
    font-weight: 800;
    margin: 1rem 0;
    line-height: 1;
}
.currency {
    font-size: 1.5rem;
    vertical-align: top;
    margin-right: 0.2rem;
}
.plan-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    height: 40px;
}

.pricing-body { flex: 1; display: flex; flex-direction: column; }
.pricing-body ul { margin-bottom: 2rem; flex: 1; }
.pricing-body li {
    margin-bottom: 1rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Extras Section */
.extras-section {
    background: var(--bg-card);
    border: 1px dashed var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    text-align: center;
}
.extras-section h3 { margin-bottom: 2rem; }
.extras-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.5rem;
}
.extra-item {
    background: rgba(255,255,255,0.05);
    padding: 1rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    display: flex;
    gap: 1rem;
    align-items: center;
}
.extra-item strong { color: var(--accent-blue); }

/* Footer */
.footer {
    border-top: 1px solid var(--border-color);
    padding-top: 4rem;
    background: #000;
}
.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}
.footer-logo { height: 100px; width: auto; max-width: 300px; margin-bottom: 1.5rem; object-fit: contain; }
.footer-info p { color: var(--text-muted); max-width: 300px; }
.footer h4 { margin-bottom: 1.5rem; font-size: 1.2rem; }
.footer-links ul li { margin-bottom: 0.8rem; }
.footer-links a { color: var(--text-muted); transition: var(--transition-fast); }
.footer-links a:hover { color: var(--accent-blue); }
.footer-contact p { color: var(--text-muted); margin-bottom: 1rem; }

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Animations / Utility Classes */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-in-left { opacity: 0; transform: translateX(-30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-in-right { opacity: 0; transform: translateX(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }

.fade-in.visible, .fade-in-left.visible, .fade-in-right.visible, .fade-up.visible {
    opacity: 1; transform: translate(0);
}

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

/* Responsive */
@media (max-width: 992px) {
    .hero h1 { font-size: 3rem; }
    .hero-container, .feature-split { grid-template-columns: 1fr; gap: 3rem; }
    .pricing-card.popular { transform: scale(1); }
    .pricing-card.popular:hover { transform: translateY(-10px); }
    .footer-container { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .grid-3, .pricing-grid { grid-template-columns: 1fr; }
    .grid-4 { grid-template-columns: 1fr 1fr; }
    .nav-links { display: none; /* simple mobile nav */ }
    .hero h1 { font-size: 2.5rem; }
    .hero-actions { flex-direction: column; }
    .footer-container { grid-template-columns: 1fr; gap: 2rem; }
    .pricing-card { margin-bottom: 1rem; }
    .pricing-card.popular { margin-bottom: 1rem; }
}