:root {
    --primary-red: #8B0000;
    --accent-red: #C41E3A;
    --deep-black: #0a0a0a;
    --industrial-black: #1a1a1a;
    --neutral-gray: #333333;
    --steel-gray: #4a4a4a;
    --light-gray: #e0e0e0;
    --concrete-gray: #f2f2f2;
    --pure-white: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.2);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.3);
}

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

body {
    font-family: 'Inter', 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--pure-white);
    background-color: var(--deep-black);
    background-image: url('https://www.transparenttextures.com/patterns/concrete-wall.png'); /* Industrial Texture */
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Oswald', sans-serif;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
}

.highlight {
    color: var(--accent-red);
}

/* Navigation */
header {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    color: var(--pure-white);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid var(--primary-red);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    font-family: 'Oswald', sans-serif;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    color: var(--pure-white);
    text-decoration: none;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--accent-red);
    transition: var(--transition);
}

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

.nav-links a:hover, .nav-links a.active {
    color: var(--accent-red);
}

.btn-nav {
    background: var(--primary-red);
    padding: 0.7rem 1.5rem;
    border-radius: 0px;
    border: 1px solid var(--accent-red);
}

.btn-nav:hover {
    background: var(--pure-white) !important;
    color: var(--primary-red) !important;
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section - Modern Split Layout */
.hero {
    height: 90vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    background-color: var(--deep-black);
    overflow: hidden;
    position: relative;
}

.hero-image-side {
    height: 100%;
    background: linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)), url('https://images.pexels.com/photos/18267094/pexels-photo-18267094.jpeg?auto=compress&cs=tinysrgb');
    background-size: cover;
    background-position: center;
    position: relative;
}

.hero-image-side::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100%;
    background: linear-gradient(to right, transparent, var(--deep-black));
}

.hero-content {
    padding: 0 10%;
    color: var(--pure-white);
    z-index: 2;
}

.hero-content h1 {
    font-size: 4.5rem;
    line-height: 1;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 0px var(--primary-red);
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    border-left: 4px solid var(--primary-red);
    padding-left: 1.5rem;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
}

.btn-call {
    background: var(--primary-red);
    color: var(--pure-white);
    padding: 1.2rem 2.5rem;
    text-decoration: none;
    font-weight: bold;
    text-transform: uppercase;
    transition: var(--transition);
    border: 2px solid var(--primary-red);
    box-shadow: var(--shadow-md);
}

.btn-call:hover {
    background: var(--accent-red);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--pure-white);
    padding: 1.2rem 2.5rem;
    text-decoration: none;
    font-weight: bold;
    text-transform: uppercase;
    transition: var(--transition);
    border: 2px solid var(--pure-white);
}

.btn-secondary:hover {
    background: var(--pure-white);
    color: var(--deep-black);
    transform: translateY(-3px);
}

/* Features / Grid */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    padding: 6rem 5%;
    max-width: 1300px;
    margin: 0 auto;
}

.feature-card {
    background: var(--glass-bg);
    backdrop-filter: blur(5px);
    padding: 3rem 2rem;
    text-align: center;
    border: 1px solid var(--glass-border);
    border-bottom: 5px solid var(--primary-red);
    transition: var(--transition);
    position: relative;
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-red);
    box-shadow: var(--shadow-lg);
}

.feature-card i {
    font-size: 3.5rem;
    color: var(--accent-red);
    margin-bottom: 1.5rem;
    display: block;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--pure-white);
}

.feature-card p {
    color: #ccc;
    font-size: 1rem;
}

/* Portfolio Gallery */
.portfolio {
    padding: 6rem 5%;
    max-width: 1300px;
    margin: 0 auto;
}

.portfolio h2 {
    text-align: center;
    font-size: 3rem;
    margin-bottom: 3rem;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, var(--deep-black));
    padding: 2rem;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover img {
    transform: scale(1.1);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-overlay h3 {
    color: var(--pure-white);
    font-size: 1.2rem;
}

/* Testimonials */
.testimonials {
    background: var(--industrial-black);
    padding: 6rem 5%;
    text-align: center;
}

.testimonials h2 {
    font-size: 3rem;
    margin-bottom: 3rem;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--glass-bg);
    padding: 2.5rem;
    border: 1px solid var(--glass-border);
    border-radius: 0;
    position: relative;
    transition: var(--transition);
}

.testimonial-card:hover {
    border-color: var(--accent-red);
}

.testimonial-card p {
    font-style: italic;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.testimonial-card .client-name {
    font-weight: bold;
    color: var(--accent-red);
    text-transform: uppercase;
}

/* CTA Banner */
.cta-banner {
    background: linear-gradient(45deg, var(--deep-black), var(--primary-red));
    color: var(--pure-white);
    text-align: center;
    padding: 6rem 5%;
}

.cta-banner h2 {
    font-size: 3rem;
    margin-bottom: 2.5rem;
}

.btn-white {
    background: var(--pure-white);
    color: var(--deep-black);
    padding: 1.2rem 2.5rem;
    text-decoration: none;
    font-weight: bold;
    text-transform: uppercase;
    transition: var(--transition);
    border: 2px solid var(--pure-white);
}

.btn-white:hover {
    background: transparent;
    color: var(--pure-white);
}

/* Page Headers */
.page-header {
    background: var(--neutral-gray);
    color: var(--pure-white);
    text-align: center;
    padding: 8rem 5%;
    background-image: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1504307651415-e821f7f6629e?auto=format&fit=crop&w=1600&q=80');
    background-size: cover;
    background-position: center;
    position: relative;
}

.page-header h1 {
    font-size: 4rem;
    text-shadow: 3px 3px 0px var(--primary-red);
}

/* About Section */
.about-content {
    padding: 6rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--pure-white);
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: #ccc;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem 1rem;
    background: var(--glass-bg);
    border-left: 4px solid var(--primary-red);
    border: 1px solid var(--glass-border);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-red);
    font-family: 'Oswald', sans-serif;
}

.stat-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: #aaa;
}

.about-image img {
    width: 100%;
    height: auto;
    border: 15px solid var(--industrial-black);
    box-shadow: var(--shadow-lg);
    outline: 3px solid var(--primary-red);
}

/* Services Section */
.services-container {
    padding: 6rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.service-category {
    margin-bottom: 6rem;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
    border-bottom: 3px solid var(--primary-red);
    padding-bottom: 1rem;
}

.category-header i {
    font-size: 2.5rem;
    color: var(--accent-red);
}

.category-header h2 {
    font-size: 2.2rem;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.service-item {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    transition: var(--transition);
    overflow: hidden;
    position: relative;
}

.service-item:hover {
    border-color: var(--accent-red);
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.service-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    filter: grayscale(30%);
    transition: var(--transition);
}

.service-item:hover img {
    filter: grayscale(0%);
}

.service-info {
    padding: 2rem;
}

.service-info h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
}

.service-info p {
    color: #ccc;
}

/* Contact & Estimate Sections */
.contact-container, .estimate-container {
    padding: 6rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-grid, .estimate-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
}

.contact-info, .estimate-info {
    padding: 2rem 0;
}

.contact-info h2, .estimate-info h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.info-item i {
    font-size: 2rem;
    color: var(--accent-red);
}

.info-item strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
}

.info-item p {
    color: #ccc;
}

.btn-call-small {
    display: inline-block;
    background: var(--primary-red);
    color: var(--pure-white);
    padding: 1rem 2rem;
    text-decoration: none;
    font-weight: bold;
    text-transform: uppercase;
    margin-top: 2rem;
    transition: var(--transition);
    border: 1px solid var(--accent-red);
}

.btn-call-small:hover {
    background: var(--accent-red);
    transform: translateY(-3px);
}

.form-wrapper, .contact-form-wrapper, .estimate-form-wrapper {
    background: var(--industrial-black);
    padding: 3rem;
    border-top: 6px solid var(--primary-red);
    box-shadow: var(--shadow-lg);
}

.contact-form, .estimate-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.form-group label {
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    color: #aaa;
}

.form-group input, .form-group select, .form-group textarea {
    padding: 1rem;
    background: var(--deep-black);
    border: 1px solid var(--neutral-gray);
    color: var(--pure-white);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-red);
    box-shadow: 0 0 0 2px rgba(196, 30, 58, 0.2);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.btn-submit {
    background: var(--primary-red);
    color: var(--pure-white);
    padding: 1.2rem;
    border: none;
    font-weight: bold;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Oswald', sans-serif;
    font-size: 1.1rem;
}

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

.quote-steps {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.step {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--glass-bg);
    padding: 1rem;
    border-left: 3px solid var(--primary-red);
}

.step i {
    color: var(--accent-red);
    font-size: 1.2rem;
}

.step p {
    font-weight: 600;
}

/* Footer */
footer {
    background: var(--deep-black);
    color: var(--pure-white);
    padding: 5rem 5% 2rem;
    border-top: 6px solid var(--primary-red);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 4rem;
    max-width: 1200px;
    margin: 0 auto;
}

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

.footer-about p {
    opacity: 0.7;
    color: #ccc;
}

.footer-links h4, .footer-contact h4 {
    margin-bottom: 1.5rem;
    color: var(--pure-white);
}

.footer-links ul {
    list-style: none;
    padding: 0;
}

.footer-links ul li {
    margin-bottom: 0.8rem;
}

.footer-links ul li a {
    color: #aaa;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links ul li a:hover {
    color: var(--accent-red);
    padding-left: 5px;
}

.footer-contact p {
    opacity: 0.8;
    color: #ccc;
    margin-bottom: 0.8rem;
}

.footer-contact p i {
    margin-right: 12px;
    color: var(--accent-red);
}

.footer-bottom {
    text-align: center;
    padding-top: 3rem;
    margin-top: 3rem;
    border-top: 1px solid #222;
    font-size: 0.85rem;
    opacity: 0.5;
    color: #888;
}

/* Mobile Responsiveness */
@media (max-width: 992px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .hero-image-side {
        display: none;
    }
    .hero-content {
        padding: 0 5%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }
    .hero-content h1 {
        font-size: 3rem;
    }
    .hero-content p {
        border-left: none;
        padding-left: 0;
    }
    .hero-btns {
        justify-content: center;
    }
    .about-grid, .contact-grid, .estimate-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 1rem;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--industrial-black);
        padding: 2rem 0;
        text-align: center;
        border-bottom: 3px solid var(--primary-red);
    }

    .nav-links.open {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-btns {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .stats {
        grid-template-columns: 1fr;
    }
    
    .page-header h1 {
        font-size: 2.5rem;
    }
}