:root {
    --primary: #4a4a4a;
    --secondary: #6b6b6b;
    --accent: #d4af37;
    --dark: #1a1a1a;
    --light: #fdfdfd;
    --white: #ffffff;
    --gray: #9e9e9e;
    --text: #333333;
    --transition: all 0.4s ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.7;
    color: var(--text);
    background-color: var(--white);
}

h1, h2, h3 {
    font-family: 'Libre Baskerville', serif;
    font-weight: 700;
    line-height: 1.2;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
    border-radius: 0;
}

.btn {
    display: inline-block;
    padding: 18px 40px;
    border-radius: 0;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--white);
    border: 1px solid var(--white);
}

.btn-outline:hover {
    background-color: var(--white);
    color: var(--primary);
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: transparent;
    padding: 30px 0;
    z-index: 1000;
    transition: var(--transition);
}

header.scrolled {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    padding: 15px 0;
}

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

.logo a {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 4px;
}

header.scrolled .logo a {
    color: var(--primary);
}

.logo span {
    color: var(--accent);
}

#menu {
    display: flex;
    gap: 40px;
}

#menu a {
    font-weight: 400;
    color: var(--white);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

header.scrolled #menu a {
    color: var(--primary);
}

#menu a:hover {
    color: var(--accent);
}

#btn-mobile {
    display: none;
}

/* Hero */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://images.unsplash.com/photo-1522335789203-aabd1fc54bc9?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    color: var(--white);
    text-align: center;
}

.hero-content {
    max-width: 850px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 25px;
    font-style: italic;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 45px;
    opacity: 0.9;
    font-weight: 300;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* About */
.about {
    padding: 120px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text h2 {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 30px;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 25px;
    color: #555;
}

/* Services */
.services {
    padding: 120px 0;
    background-color: var(--light);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h2 {
    font-size: 3rem;
    color: var(--primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.service-card {
    background-color: var(--white);
    padding: 60px 40px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid #eee;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
    box-shadow: 0 15px 40px rgba(0,0,0,0.05);
}

.service-card h3 {
    margin-bottom: 20px;
    color: var(--primary);
    font-size: 1.8rem;
}

/* Contact */
.contact {
    padding: 120px 0;
}

.contact-card {
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--white);
    padding: 80px;
    border: 1px solid #eee;
}

.contact-header {
    text-align: center;
    margin-bottom: 50px;
}

.contact-header h2 {
    font-size: 3rem;
    margin-bottom: 15px;
}

.input-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

input, textarea {
    width: 100%;
    padding: 18px;
    border: 1px solid #eee;
    outline: none;
    font-family: inherit;
    transition: var(--transition);
}

input:focus, textarea:focus {
    border-color: var(--accent);
}

.contact-card .btn {
    width: 100%;
}

.company-details {
    margin-top: 50px;
    text-align: center;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Footer */
footer {
    padding: 60px 0;
    background-color: var(--white);
    border-top: 1px solid #eee;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--gray);
}

/* Mobile */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .input-group {
        grid-template-columns: 1fr;
    }
    
    .contact-card {
        padding: 40px 20px;
    }
    
    #menu {
        display: block;
        position: absolute;
        width: 100%;
        top: 90px;
        right: 0;
        background: var(--white);
        transition: 0.6s;
        z-index: 1000;
        height: 0;
        visibility: hidden;
        overflow-y: hidden;
    }
    
    #nav.active #menu {
        height: calc(100vh - 90px);
        visibility: visible;
        overflow-y: auto;
    }
    
    #menu a {
        padding: 1.5rem 0;
        margin: 0 2rem;
        border-bottom: 1px solid #eee;
        display: block;
        color: var(--primary) !important;
    }
    
    #btn-mobile {
        display: flex;
        padding: 0.5rem 1rem;
        font-size: 1rem;
        border: none;
        background: none;
        cursor: pointer;
        color: var(--white);
    }
    
    header.scrolled #btn-mobile {
        color: var(--primary);
    }
    
    #hamburger {
        border-top: 2px solid;
        width: 25px;
    }
    
    #hamburger::after, #hamburger::before {
        content: '';
        display: block;
        width: 25px;
        height: 2px;
        background: currentColor;
        margin-top: 6px;
        transition: 0.3s;
        position: relative;
    }
    
    #nav.active #hamburger {
        border-top-color: transparent;
    }
    
    #nav.active #hamburger::before {
        transform: rotate(135deg);
    }
    
    #nav.active #hamburger::after {
        transform: rotate(-135deg);
        top: -8px;
    }
}