:root {
    --bg: #09090b;
    --fg: #fafafa;
    --primary: #38bdf8;
    --primary-hover: #0ea5e9;
    --secondary: #71717a;
    --accent: #1e293b;
    --card-bg: rgba(24, 24, 27, 0.4);
    --card-border: rgba(39, 39, 42, 0.6);
    --header-bg: rgba(9, 9, 11, 0.8);
    --input-bg: #18181b;
    --input-border: #27272a;
    --radius-lg: 12px;
    --radius-md: 8px;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg);
    color: var(--fg);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: var(--header-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    transition: var(--transition);
}

header.scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--fg);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-img {
    height: 40px;
    width: auto;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--secondary);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
}

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

.nav-links a.active {
    color: var(--fg);
}

.btn-contact {
    background: var(--primary);
    color: #000;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition);
}

.btn-contact:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    text-decoration: none;
    color: #000;
}

/* Menu Toggle Mobile */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--fg);
    padding: 0.5rem;
}

/* Hero Section */
.hero {
    padding: 180px 0 100px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.08) 0%, transparent 70%);
    z-index: -1;
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    background: linear-gradient(180deg, #fff 0%, #a1a1aa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--secondary);
    max-width: 650px;
    margin: 0 auto 2.5rem;
}

/* Sections General */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 1rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Cards & Grid */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    height: 100%;
}

.card:hover {
    border-color: var(--primary);
    background: rgba(24, 24, 27, 0.6);
    transform: translateY(-5px);
}

.card-icon {
    width: 48px;
    height: 48px;
    background: var(--accent);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: #fff;
}

.card p {
    color: var(--secondary);
    font-size: 0.95rem;
}

/* About Section Specifics */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.company-info {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--accent);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
}

.company-info div {
    margin-bottom: 0.5rem;
}

.company-info span {
    color: var(--secondary);
    margin-right: 0.5rem;
}

/* Technologies Section */
.tech-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--accent);
    border: 1px solid var(--card-border);
    border-radius: 50px;
    font-size: 0.875rem;
    margin: 0.25rem;
    color: var(--fg);
    transition: var(--transition);
}

.tech-tag:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Process Section */
.process-steps {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.step {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.step-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}

.step-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

/* Form Styles */
.contact-container {
    max-width: 700px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--secondary);
}

input, textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    color: var(--fg);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.1);
}

button[type="submit"] {
    width: 100%;
    padding: 1rem;
    background: var(--primary);
    color: #000;
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

button[type="submit"]:hover {
    background: var(--primary-hover);
}

.msg {
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.sucesso {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.2);
    color: #4ade80;
}

.erro {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #f87171;
}

.lgpd-note {
    font-size: 0.8rem;
    color: var(--secondary);
    margin-top: 1rem;
    text-align: center;
}

/* Footer */
footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--card-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-brand p {
    color: var(--secondary);
    max-width: 300px;
    margin-top: 1rem;
}

.footer-links h4 {
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

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

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--secondary);
    font-size: 0.875rem;
    padding-top: 2rem;
    border-top: 1px solid var(--card-border);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Mobile menu logic in JS */
    }
    
    .menu-toggle {
        display: block;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .footer-content {
        flex-direction: column;
    }
}