:root {
    --primary: #2d3436;
    --accent: #d35400;
    --accent-light: #e67e22;
    --text: #2d3436;
    --text-light: #636e72;
    --bg: #f5f6fa;
    --white: #ffffff;
    --glass: rgba(255, 255, 255, 0.8);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --font-main: 'Outfit', sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3 {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
}

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

/* Base Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 100px 0;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: var(--glass);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1rem 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--primary);
}

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

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

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

.btn-nav {
    padding: 0.5rem 1.2rem;
    border: 1px solid var(--accent);
    color: var(--accent) !important;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('assets/hero_roofing.png');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-align: center;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--accent);
    color: var(--white);
    font-weight: 600;
    border-radius: 4px;
    transition: transform 0.3s ease;
}

.btn:hover {
    transform: translateY(-5px);
    background: var(--accent-light);
}

/* Grid Layouts */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
}

/* Footer */
footer {
    background: var(--primary);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 4rem;
    margin-bottom: 40px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: var(--text-light);
}

/* Hero Buttons */
.hero-btns {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

.btn-outline {
    background: transparent !important;
    border: 2px solid var(--white);
}

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

/* Partners Section */
.partners {
    padding: 60px 0;
    background: var(--white);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.partners-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 4rem;
}

.partner-item {
    filter: grayscale(1);
    opacity: 0.6;
    transition: all 0.3s ease;
    max-width: 150px;
    text-align: center;
}

.partner-item span {
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 2px;
}

.partner-item img {
    max-width: 100%;
    height: auto;
}

.partner-item:hover {
    filter: grayscale(0);
    opacity: 1;
    transform: scale(1.1);
}

/* Product Highlights */
.product-highlight {
    background: var(--bg);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.product-highlight:hover {
    transform: translateY(-10px);
}

.product-img-wrapper {
    width: 100%;
    height: 300px;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.product-img-wrapper img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.product-info {
    padding: 2rem;
}

.product-info h3 {
    margin-bottom: 1rem;
    color: var(--primary);
}

.product-info p {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.btn-sm {
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
}

/* Product Feature Sections */
.feature-section {
    padding: 120px 0;
    overflow: hidden;
}

.feature-section.dark {
    background-color: #f8f9fa;
    color: var(--text);
}

.feature-section.light {
    background-color: var(--white);
    color: var(--text);
}

.feature-row {
    display: flex;
    align-items: center;
    gap: 5rem;
}

.feature-content {
    flex: 1;
}

.feature-image {
    flex: 1;
}

.feature-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.5s ease;
}

.feature-image img:hover {
    transform: scale(1.02);
}

.feature-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 1rem;
}

.feature-content h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--accent);
}

.feature-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.feature-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.5rem;
    background: rgba(0, 0, 0, 0.05);
    padding: 2rem;
    border-radius: 8px;
}


.spec-item {
    display: flex;
    flex-direction: column;
}

.spec-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.7;
}

.spec-value {
    font-size: 1.2rem;
    font-weight: 600;
}

/* Responsive */
@media (max-width: 991px) {
    .feature-row {
        flex-direction: column;
        gap: 3rem;
    }

    .feature-row.reverse {
        flex-direction: column-reverse;
    }

    .feature-content {
        text-align: center;
    }

    .feature-content h2::after {
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-btns {
        flex-direction: column;
    }

    .partners-grid {
        gap: 2rem;
    }

    .partner-item {
        max-width: 100px;
    }
}