/* Variables */
:root {
    --bg-main: #1a1a1a;
    --bg-section: #222222;
    --bg-light: #2a2a2a;
    --text-main: #e0e0e0;
    --text-muted: #aaaaaa;
    --accent: #d4c5a9;
    /* Beige/Gold */
    --accent-hover: #bfae8f;
    --font-main: 'Helvetica', 'Arial', sans-serif;
    --container: 1200px;
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-main);
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
}

h1,
h2,
h3,
h4 {
    color: white;
    margin-bottom: 20px;
    font-weight: 400;
    /* Sleek, thinner headings */
    text-transform: uppercase;
    letter-spacing: 1px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

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

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 40px;
}

.section {
    padding: 100px 0;
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    background-color: var(--accent);
    color: var(--bg-main);
    font-size: 0.9rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: background 0.3s ease, transform 0.2s;
}

.btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

/* Header */
header {
    background: rgba(26, 26, 26, 0.95);
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid #333;
}

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

.logo img {
    height: 40px;
    object-fit: contain;
    filter: invert(1) brightness(2);
    /* Ensure logo is visible on dark if it's black */
}

nav {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    color: var(--text-main);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-link:hover {
    color: var(--accent);
}

.lang-toggle {
    background: transparent;
    border: 1px solid var(--text-muted);
    padding: 5px 12px;
    cursor: pointer;
    font-size: 0.8rem;
    color: var(--text-main);
    margin-left: 20px;
}

.lang-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Hero */
.hero {
    height: 100vh;
    /* B&W Skyscrapers / High-rise */
    background: url('https://images.unsplash.com/photo-1478760329108-5c3ed9d495a0?ixlib=rb-4.0.3&auto=format&fit=crop&w=2074&q=80') center/cover no-repeat;
    position: relative;
    display: flex;
    align-items: center;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    /* Darker overlay for contrast */
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin-left: 10%;
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 30px;
    color: white;
}

.hero-text {
    font-size: 1.3rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
}

/* About Section */
.about-section {
    background: var(--bg-section);
    display: flex;
    align-items: center;
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image img {
    width: 100%;
    height: auto;
    filter: grayscale(100%);
    /* Stylish BW look */
    transition: filter 0.5s;
}

.about-image img:hover {
    filter: grayscale(0%);
}

.about-text h2 {
    font-size: 3rem;
    margin-bottom: 30px;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.8;
}

/* Services */
.services-section {
    background: var(--bg-main);
    text-align: center;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 60px;
}

.service-card {
    background: var(--bg-light);
    padding: 40px;
    border: 1px solid #333;
    transition: 0.3s;
}

.service-card:hover {
    border-color: var(--accent);
    transform: translateY(-5px);
}

.service-card h3 {
    color: var(--accent);
    font-size: 1.2rem;
    margin-bottom: 15px;
}

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

/* Contact */
.contact-section {
    background: var(--bg-section);
    padding: 100px 0;
    border-top: 1px solid #333;
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
}

.contact-info h2 {
    font-size: 3rem;
    margin-bottom: 40px;
}

.contact-item {
    margin-bottom: 30px;
}

.contact-item strong {
    display: block;
    color: var(--accent);
    margin-bottom: 5px;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.contact-item p {
    color: var(--text-main);
    font-size: 1.1rem;
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.contact-form .full-w {
    grid-column: 1 / -1;
}

.contact-form input,
.contact-form textarea {
    background: transparent;
    border: none;
    border-bottom: 1px solid #555;
    padding: 15px 0;
    color: white;
    font-size: 1rem;
    width: 100%;
    outline: none;
    transition: border 0.3s;
}

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

.contact-form textarea {
    resize: none;
}

.submit-btn {
    grid-column: 1 / -1;
    justify-self: start;
    margin-top: 20px;
    background: var(--accent);
    color: var(--bg-main);
    border: none;
    padding: 15px 50px;
    font-weight: bold;
    text-transform: uppercase;
    cursor: pointer;
    transition: 0.3s;
}

.submit-btn:hover {
    background: var(--accent-hover);
}

/* Footer */
footer {
    background: #111;
    color: #666;
    text-align: center;
    padding: 30px;
    font-size: 0.8rem;
    border-top: 1px solid #222;
}

/* Responsive */
@media (max-width: 900px) {
    .hero-title {
        font-size: 3rem;
    }

    .about-grid,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }
}