:root {
    /* Cores Premium */
    --bg-color: #0d1117; /* Fundo super escuro */
    --surface-color: #161b22; /* Fundo de cards */
    --surface-light: #21262d;
    
    --primary-color: #229ec3; /* Ciano original */
    --primary-glow: rgba(34, 158, 195, 0.4);
    
    --accent-color: #e63946; /* Vermelho do logo original ajustado */
    
    --text-main: #f0f6fc;
    --text-muted: #8b949e;

    --font-main: 'Inter', sans-serif;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

html {
    scroll-behavior: smooth;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 800;
    line-height: 1.2;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    background-color: #1b82a1;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(34, 158, 195, 0.6);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    border: 2px solid var(--surface-light);
}

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

/* Header & Glassmorphism */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
}

.header.scrolled {
    padding: 1rem 0;
    background: rgba(13, 17, 23, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

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

/* Logo Fluida */
.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-svg {
    width: 45px;
    height: 45px;
    animation: rotateSlow 20s linear infinite;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: 2px;
    background: linear-gradient(90deg, #fff, #8b949e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

@keyframes rotateSlow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Navigation */
.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-muted);
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-main);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--text-main);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at center, #161b22 0%, #0d1117 100%);
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
}

.glow-1 {
    top: 20%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: var(--primary-color);
}

.glow-2 {
    bottom: 10%;
    right: -10%;
    width: 300px;
    height: 300px;
    background: var(--accent-color);
    opacity: 0.3;
}

.hero-content {
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(3rem, 5vw, 4.5rem);
    margin-bottom: 1.5rem;
}

.highlight {
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 10px;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: var(--primary-glow);
    z-index: -1;
    border-radius: 4px;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-inline: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Sections Common */
section {
    padding: 8rem 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 4rem;
    font-size: 1.1rem;
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--surface-color);
    border: 1px solid var(--surface-light);
    border-radius: 24px;
    padding: 3rem 2rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(34, 158, 195, 0.1) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: inline-block;
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-desc {
    color: var(--text-muted);
}

/* Portfolio Section */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.portfolio-card {
    background: var(--surface-color);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--surface-light);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
}

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

.client-logo {
    width: 120px;
    height: 120px;
    margin-bottom: 1.5rem;
    object-fit: contain;
    filter: grayscale(100%) brightness(200%);
    transition: var(--transition);
}

.portfolio-card:hover .client-logo {
    filter: grayscale(0%) brightness(100%);
}

.portfolio-info {
    text-align: center;
}

.portfolio-info h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

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

/* Contact Section */
.contact-box {
    background: var(--surface-color);
    border-radius: 30px;
    padding: 5rem 3rem;
    text-align: center;
    border: 1px solid var(--surface-light);
    position: relative;
    overflow: hidden;
}

.contact-methods {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
    padding: 1rem 2rem;
    border-radius: 15px;
    background: var(--surface-light);
    transition: var(--transition);
}

.contact-item:hover {
    background: var(--primary-color);
    color: #fff;
    transform: translateY(-5px);
}

/* Footer */
.footer {
    background: #090c10;
    padding: 3rem 0;
    border-top: 1px solid var(--surface-light);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
    .header-content {
        padding: 0 1rem;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-color);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        text-align: center;
        border-bottom: 1px solid var(--surface-light);
        clip-path: circle(0% at top right);
        transition: var(--transition);
    }
    
    .nav-menu.active {
        clip-path: circle(150% at top right);
    }

    .mobile-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
    }
    
    .contact-item {
        font-size: 1.1rem;
        width: 100%;
        justify-content: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}