/* ===== Lukhele Logistics - Main Stylesheet ===== */
/* Industrial Coal-Themed Design - Dark/Amber Palette */

/* --- CSS Variables / Root --- */
:root {
    --primary-dark: #1a1a2e;
    --primary-black: #0d0d0d;
    --secondary-dark: #2d2d44;
    --gray-dark: #3a3a3a;
    --gray-mid: #6c6c7a;
    --gray-light: #a8a8b3;
    --accent-amber: #f59e0b;
    --accent-amber-dark: #d97706;
    --accent-amber-light: #fbbf24;
    --white: #ffffff;
    --off-white: #f5f5f0;
    --bg-light: #f9f9f4;
    --text-dark: #1a1a2e;
    --text-light: #e0e0e0;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.2);
    --transition: all 0.3s ease;
    --radius: 8px;
    --max-width: 1200px;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Inter', 'Segoe UI', sans-serif;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    background: var(--bg-light);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

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

.section {
    padding: 80px 0;
}

.section-dark {
    background: var(--primary-dark);
    color: var(--text-light);
}

.section-light {
    background: var(--off-white);
}

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--primary-dark);
    position: relative;
    display: inline-block;
}

.section-dark .section-title {
    color: var(--white);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray-mid);
    margin-bottom: 50px;
    max-width: 600px;
}

.section-dark .section-subtitle {
    color: var(--gray-light);
}

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

.section-header .section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent-amber);
    margin: 12px auto 0;
    border-radius: 2px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: var(--font-body);
    text-align: center;
}

.btn-primary {
    background: var(--accent-amber);
    color: var(--primary-dark);
}

.btn-primary:hover {
    background: var(--accent-amber-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

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

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

/* ===== Header / Navigation ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(245, 158, 11, 0.15);
    transition: var(--transition);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    max-width: var(--max-width);
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--white);
    font-size: 1.4rem;
    font-weight: 800;
}

.nav-logo-icon {
    width: 40px;
    height: 40px;
    background: var(--accent-amber);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 900;
    color: var(--primary-dark);
}

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

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

.nav-links a {
    color: var(--gray-light);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

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

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

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--white);
    font-size: 1.5rem;
    padding: 5px;
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--primary-dark) 50%, #0f0f23 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-amber-light);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 25px;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.hero h1 {
    font-size: 3.8rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 10px;
}

.hero h1 span {
    color: var(--accent-amber);
}

.hero-tagline {
    font-size: 1.5rem;
    color: var(--accent-amber);
    font-weight: 600;
    margin-bottom: 15px;
}

.hero p {
    font-size: 1.2rem;
    color: var(--gray-light);
    margin-bottom: 40px;
    max-width: 600px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 50px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.hero-stat h3 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-amber);
}

.hero-stat p {
    font-size: 0.9rem;
    color: var(--gray-mid);
    margin-bottom: 0;
}

/* ===== Services Section ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.service-card {
    background: var(--white);
    padding: 35px 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-bottom: 3px solid transparent;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 0;
    background: var(--accent-amber);
    transition: var(--transition);
}

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

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

.service-card-icon {
    width: 60px;
    height: 60px;
    background: rgba(245, 158, 11, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--accent-amber);
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--primary-dark);
}

.service-card p {
    color: var(--gray-mid);
    font-size: 0.95rem;
    line-height: 1.7;
}

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

.about-image {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--secondary-dark);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.about-image-placeholder {
    width: 100%;
    height: 100%;
    min-height: 400px;
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-dark));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gray-light);
    padding: 40px;
    text-align: center;
}

.about-image-placeholder i {
    font-size: 4rem;
    color: var(--accent-amber);
    margin-bottom: 20px;
    opacity: 0.5;
}

.about-image-placeholder p {
    font-size: 1.1rem;
    opacity: 0.6;
}

.about-text h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary-dark);
}

.about-text h2 span {
    color: var(--accent-amber);
}

.about-text p {
    color: var(--gray-mid);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.about-certs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 30px;
}

.about-cert {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    background: rgba(245, 158, 11, 0.08);
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
}

.about-cert i {
    color: var(--accent-amber);
    font-size: 1.1rem;
}

/* ===== Projects Section ===== */
.projects-placeholder {
    text-align: center;
    padding: 60px 20px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.projects-placeholder i {
    font-size: 4rem;
    color: var(--accent-amber);
    margin-bottom: 25px;
    opacity: 0.4;
}

.projects-placeholder h3 {
    font-size: 1.6rem;
    margin-bottom: 15px;
    color: var(--primary-dark);
}

.projects-placeholder p {
    color: var(--gray-mid);
    max-width: 500px;
    margin: 0 auto;
}

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

.gallery-item {
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    height: 250px;
    cursor: pointer;
}

.gallery-item-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--secondary-dark), var(--gray-dark));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--gray-light);
    transition: var(--transition);
}

.gallery-item-placeholder i {
    font-size: 2.5rem;
    margin-bottom: 10px;
    opacity: 0.5;
    color: var(--accent-amber);
}

.gallery-item-placeholder span {
    font-size: 0.9rem;
    opacity: 0.6;
}

.gallery-item:hover .gallery-item-placeholder {
    transform: scale(1.05);
}

/* ===== Contact Section ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--primary-dark);
}

.contact-info > p {
    color: var(--gray-mid);
    margin-bottom: 35px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 35px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-item-icon {
    width: 45px;
    height: 45px;
    background: rgba(245, 158, 11, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-amber);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-item-text h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-mid);
    margin-bottom: 3px;
}

.contact-item-text p {
    color: var(--primary-dark);
    font-weight: 500;
}

.contact-item-text a {
    color: var(--primary-dark);
    font-weight: 500;
}

.contact-item-text a:hover {
    color: var(--accent-amber-dark);
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
}

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

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 6px;
    color: var(--primary-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #e0e0e0;
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--bg-light);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-amber);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

.form-group textarea {
    height: 140px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

/* ===== WhatsApp Float Button ===== */
.whatsapp-float {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.5);
    color: var(--white);
}

@keyframes pulse {
    0% { box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 4px 25px rgba(37, 211, 102, 0.6); }
    100% { box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4); }
}

/* ===== Footer ===== */
.footer {
    background: var(--primary-black);
    color: var(--gray-light);
    padding: 60px 0 30px;
}

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

.footer-brand h3 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 15px;
}

.footer-brand h3 span {
    color: var(--accent-amber);
}

.footer-brand p {
    font-size: 0.95rem;
    line-height: 1.8;
    max-width: 350px;
}

.footer h4 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--gray-light);
    font-size: 0.95rem;
}

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

.footer-contact li {
    display: flex;
    gap: 12px;
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.footer-contact i {
    color: var(--accent-amber);
    margin-top: 4px;
    width: 16px;
}

.footer-contact a {
    color: var(--gray-light);
}

.footer-contact a:hover {
    color: var(--accent-amber);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-top: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

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

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

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-light);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--accent-amber);
    border-color: var(--accent-amber);
    color: var(--primary-dark);
}

/* ===== Page Header ===== */
.page-header {
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--primary-dark) 100%);
    padding: 140px 0 60px;
    text-align: center;
    position: relative;
}

.page-header h1 {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 10px;
}

.page-header h1 span {
    color: var(--accent-amber);
}

.page-header p {
    color: var(--gray-light);
    font-size: 1.1rem;
    max-width: 500px;
    margin: 0 auto;
}

.breadcrumb {
    color: var(--gray-mid);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.breadcrumb a {
    color: var(--gray-light);
}

.breadcrumb a:hover {
    color: var(--accent-amber);
}

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

/* ===== About Page Extras ===== */
.about-founder {
    background: var(--white);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    margin-top: 40px;
}

.about-founder h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 15px;
}

.about-founder h3 span {
    color: var(--accent-amber);
}

.founder-certs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.founder-cert-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(245, 158, 11, 0.1);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-dark);
}

.founder-cert-badge i {
    color: var(--accent-amber);
}

/* ===== Services Page ===== */
.services-page-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
}

.service-detailed-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 40px 35px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-left: 4px solid var(--accent-amber);
}

.service-detailed-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.service-detailed-card .icon {
    width: 65px;
    height: 65px;
    background: rgba(245, 158, 11, 0.1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--accent-amber);
    margin-bottom: 20px;
}

.service-detailed-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--primary-dark);
}

.service-detailed-card p {
    color: var(--gray-mid);
    line-height: 1.8;
}

/* ===== CTA Section ===== */
.cta-section {
    background: linear-gradient(135deg, var(--primary-dark), #0f0f23);
    padding: 80px 0;
    text-align: center;
}

.cta-section h2 {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 15px;
}

.cta-section p {
    color: var(--gray-light);
    font-size: 1.15rem;
    margin-bottom: 35px;
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Gallery page ===== */
.gallery-page-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.gallery-page-item {
    border-radius: var(--radius);
    overflow: hidden;
    height: 280px;
    position: relative;
}

.gallery-page-item .gallery-item-placeholder {
    height: 100%;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .about-grid {
        gap: 40px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(13, 13, 13, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        border-bottom: 1px solid rgba(245, 158, 11, 0.15);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero-tagline {
        font-size: 1.2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 25px;
    }
    
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        padding: 25px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .about-certs {
        grid-template-columns: 1fr;
    }

    .cta-section h2 {
        font-size: 1.8rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero-tagline {
        font-size: 1rem;
    }
    
    .page-header h1 {
        font-size: 1.6rem;
    }
    
    .services-page-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-page-grid {
        grid-template-columns: 1fr;
    }
}