:root {
    --bg-dark: #1a1a1a;
    --silver: #C0C0C0;
    --silver-gradient: linear-gradient(145deg, #e6e6e6, #808080);
    --text-color: #f4f4f4;
    --rainbow: linear-gradient(to right, #ff0000, #ff7f00, #ffff00, #00ff00, #0000ff, #4b0082, #8b00ff);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    background: #252525;
    border-bottom: 1px solid #333;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo-silver {
    font-weight: 700;
    font-size: 1.5rem;
    background: var(--silver-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li a {
    color: var(--text-color);
    text-decoration: none;
    margin-left: 2rem;
    transition: 0.3s;
}

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

/* Rainbow Line */
.rainbow-line {
    height: 4px;
    width: 100%;
    background: var(--rainbow);
}

/* Hero Section */
.hero {
    height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: radial-gradient(circle, #2a2a2a 0%, #1a1a1a 100%);
}

.btn-primary {
    display: inline-block;
    margin-top: 1.5rem;
    padding: 0.8rem 2rem;
    background: var(--silver-gradient);
    color: #000;
    text-decoration: none;
    font-weight: bold;
    border-radius: 5px;
    transition: transform 0.2s;
}

.btn-primary:hover {
    transform: scale(1.05);
}

/* Grid e Cards */
.container { padding: 4rem 10%; }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background: #252525;
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid #333;
}

.square {
    width: 20px;
    height: 20px;
    margin-bottom: 1rem;
    border-radius: 3px;
}

.red { background: #ff4d4d; }
.yellow { background: #fffa65; }
.blue { background: #18dcff; }

/* Menu Toggle Mobile */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    background: none;
    border: none;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--silver);
    margin: 4px 0;
    transition: 0.4s;
}

@media (max-width: 768px) {
    .menu-toggle { display: flex; }
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: #252525;
        padding: 1rem 0;
    }
    .nav-links.active { display: flex; }
    .nav-links li { text-align: center; padding: 1rem 0; }
}

footer {
    text-align: center;
    padding: 2rem 0;
    background: #111;
}

/* Contact Section Styles */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    background: #252525;
    padding: 3rem;
    border-radius: 15px;
    border: 1px solid #333;
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: var(--silver-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.contact-details {
    margin-top: 2rem;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

/* Form Styles */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group input, 
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: #1a1a1a;
    border: 1px solid #444;
    border-radius: 5px;
    color: var(--text-color);
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus, 
.form-group textarea:focus {
    outline: none;
    border-color: var(--silver);
}

.contact-form .btn-primary {
    cursor: pointer;
    border: none;
    width: fit-content;
}

/* Responsive Contact */
@media (max-width: 992px) {
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 2rem;
    }
}