/* ==========================================================================
   Base Styles & Variables
   ========================================================================== */
   :root {
    /* Colors - Industrial Theme */
    --primary: #f39c12; /* Industrial Orange/Yellow */
    --primary-hover: #e67e22;
    --dark: #121212;
    --dark-alt: #1a1a1a;
    --steel: #4a4e69;
    --steel-light: #71797e;
    --text: #e0e0e0;
    --text-muted: #a0a0a0;
    --white: #ffffff;
    --black: #000000;
    
    /* Typography */
    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Layout */
    --container-width: 1200px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 100px 0;
}

.bg-dark {
    background-color: var(--dark-alt);
}

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

.w-100 {
    width: 100%;
}

.mt-3 {
    margin-top: 1.5rem;
}

.mt-4 {
    margin-top: 2rem;
}

/* ==========================================================================
   Typography & Titles
   ========================================================================== */
.section-title {
    margin-bottom: 3rem;
}

.section-title .subtitle {
    display: inline-block;
    color: var(--primary);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 10px;
    position: relative;
    padding-left: 50px;
}

.section-title .subtitle::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 2px;
    background-color: var(--primary);
}

.section-title h2 {
    font-size: 2.5rem;
    color: var(--white);
}

.section-title h2 span {
    color: var(--primary);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    border: none;
    outline: none;
    position: relative;
    z-index: 1;
    overflow: hidden;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(243, 156, 18, 0.3);
}

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

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

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    z-index: 1000;
    transition: var(--transition);
    background: transparent;
}

.header.sticky {
    background-color: rgba(18, 18, 18, 0.95);
    padding: 15px 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 1px;
}

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

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

.nav-links li a {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--white);
    position: relative;
    padding: 5px 0;
}

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

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

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

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--white);
    cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    height: 100vh;
    min-height: 600px;
    background: url('https://images.unsplash.com/photo-1504917595217-d4dc5ebe6122?auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
    position: relative;
    display: flex;
    align-items: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(18,18,18,0.9) 0%, rgba(18,18,18,0.6) 50%, rgba(18,18,18,0.3) 100%);
}

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

.hero-content h1 {
    font-size: 5rem;
    color: var(--white);
    margin-bottom: 20px;
    line-height: 1.1;
}

.hero-content h1 span {
    color: var(--primary);
}

.hero-content p {
    font-size: 1.5rem;
    color: var(--text);
    margin-bottom: 40px;
    border-left: 4px solid var(--primary);
    padding-left: 15px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: 5px;
    box-shadow: 20px 20px 0 var(--dark-alt);
    border: 2px solid rgba(255,255,255,0.05);
}

.experience-badge {
    position: absolute;
    bottom: -30px;
    right: -30px;
    background-color: var(--primary);
    color: var(--black);
    padding: 30px;
    border-radius: 5px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.experience-badge .years {
    display: block;
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
}

.experience-badge .text {
    font-family: var(--font-heading);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 1rem;
}

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

.about-features {
    margin-top: 30px;
}

.about-features li {
    font-size: 1.1rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--white);
}

.about-features i {
    color: var(--primary);
    font-size: 1.2rem;
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: var(--dark);
    padding: 40px 30px;
    border-radius: 5px;
    border-bottom: 4px solid transparent;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0;
    background-color: rgba(243, 156, 18, 0.05);
    z-index: -1;
    transition: var(--transition);
}

.service-card:hover::before {
    height: 100%;
}

.service-card:hover {
    transform: translateY(-10px);
    border-bottom-color: var(--primary);
    box-shadow: 0 15px 30px rgba(0,0,0,0.5);
}

.service-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 25px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
}

.service-card h3 {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-muted);
}

/* ==========================================================================
   Why Choose Us (Features)
   ========================================================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-item {
    text-align: center;
    padding: 30px 20px;
}

.feature-item .icon-box {
    width: 80px;
    height: 80px;
    background-color: rgba(243, 156, 18, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: var(--primary);
    transition: var(--transition);
    border: 1px dashed var(--primary);
}

.feature-item:hover .icon-box {
    background-color: var(--primary);
    color: var(--black);
    transform: rotate(15deg);
}

.feature-item h4 {
    font-size: 1.2rem;
    color: var(--white);
    margin-bottom: 10px;
}

.feature-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ==========================================================================
   Gallery Section
   ========================================================================== */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 5px;
    height: 300px;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(18, 18, 18, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    transform: scale(0.9);
}

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

.gallery-item:hover .gallery-overlay {
    opacity: 1;
    transform: scale(1);
}

.gallery-overlay h4 {
    color: var(--primary);
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info p {
    color: var(--text-muted);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.contact-item .icon {
    width: 50px;
    height: 50px;
    background-color: rgba(243, 156, 18, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    font-size: 1.2rem;
}

.contact-item h4 {
    color: var(--white);
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.contact-item p {
    margin-bottom: 0;
    font-size: 0.95rem;
}

.contact-form {
    background-color: var(--dark-alt);
    padding: 40px;
    border-radius: 5px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.contact-form h3 {
    font-size: 1.8rem;
    color: var(--white);
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    background-color: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 3px;
    color: var(--white);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background-color: rgba(255,255,255,0.05);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background-color: #0a0a0a;
    padding-top: 80px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo {
    margin-bottom: 20px;
    display: inline-block;
}

.brand-col p {
    color: var(--text-muted);
    margin-bottom: 25px;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    color: var(--white);
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--primary);
    color: var(--black);
    transform: translateY(-3px);
}

.footer-col h4 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary);
}

.footer-col ul li {
    margin-bottom: 15px;
}

.footer-col ul li a {
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-col ul li a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.footer-col ul li a i {
    font-size: 0.8rem;
    color: var(--primary);
}

.footer-col p {
    color: var(--text-muted);
    margin-bottom: 20px;
}

.newsletter-form {
    display: flex;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 15px;
    background-color: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--white);
    border-radius: 3px 0 0 3px;
    outline: none;
}

.newsletter-form button {
    padding: 0 20px;
    background-color: var(--primary);
    color: var(--black);
    border: none;
    border-radius: 0 3px 3px 0;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-form button:hover {
    background-color: var(--primary-hover);
}

.footer-bottom {
    background-color: #000;
    padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,0.05);
}

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

/* ==========================================================================
   WhatsApp Floating Button
   ========================================================================== */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 35px;
    box-shadow: 0px 5px 15px rgba(0,0,0,0.3);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    background-color: #128c7e;
    color: #fff;
    transform: scale(1.1);
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
    70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 992px) {
    .hero-content h1 { font-size: 4rem; }
    .about-container, .contact-container { grid-template-columns: 1fr; gap: 40px; }
    .experience-badge { right: 20px; bottom: -20px; padding: 20px; }
    .experience-badge .years { font-size: 2.5rem; }
    .footer-container { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .section { padding: 70px 0; }
    
    /* Navigation */
    .menu-toggle { display: block; }
    
    .navbar {
        position: fixed;
        top: 0;
        right: -100%;
        width: 250px;
        height: 100vh;
        background-color: var(--dark-alt);
        box-shadow: -5px 0 15px rgba(0,0,0,0.5);
        padding: 80px 30px;
        transition: right 0.4s ease;
        z-index: 999;
    }
    
    .navbar.active { right: 0; }
    
    .nav-links {
        flex-direction: column;
        gap: 25px;
    }
    
    .hero-content h1 { font-size: 3rem; }
    .hero-content p { font-size: 1.2rem; }
    
    .footer-container { grid-template-columns: 1fr; gap: 30px; }
    
    .whatsapp-float { bottom: 20px; right: 20px; width: 50px; height: 50px; font-size: 28px; }
}

@media (max-width: 576px) {
    .hero-content h1 { font-size: 2.5rem; }
    .hero-buttons { flex-direction: column; gap: 15px; }
    .section-title h2 { font-size: 2rem; }
}