/* --- 1. CSS Variables & Reset --- */
:root {
    /* Color Palette - Dark Gold / Amber & Slate (Crude Oil Aesthetic) */
    --clr-primary-900: #07090e; /* Near Black / Dark Oil */
    --clr-primary-800: #0f131a; /* Dark Navy/Slate surface */
    --clr-primary-700: #1e2530; /* Dark Charcoal border/lines */
    
    --clr-accent: #c29738; /* Warm Gold / Bronze representing 'black gold' */
    --clr-accent-hover: #a37c2a;
    
    --clr-surface: #0f131a; /* Dark Surface card background */
    --clr-bg-light: #07090e; /* Near Black main background */
    --clr-bg-alt: #161c27; /* Dark Slate background */
    
    --clr-text-main: #cbd5e1; /* Soft Slate text */
    --clr-text-muted: #94a3b8; /* Muted Slate text */
    --clr-text-light: #f8fafc; /* Bright White text */
    
    /* Typography */
    --font-en: 'Inter', system-ui, sans-serif;
    --font-ar: 'Cairo', system-ui, sans-serif;
    --font-base: var(--font-en);
    
    /* Spacing & Layout */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    --container-max-w: 1200px;
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    
    /* Shadows & Effects */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.4);
    --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.5);
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* RTL Adjustments */
html[dir="rtl"] {
    --font-base: var(--font-ar);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-base);
    color: var(--clr-text-main);
    background-color: var(--clr-bg-light);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html[dir="rtl"] body {
    font-size: 1.05rem; /* Arabic fonts usually need a tiny bump */
}

/* --- 2. Utility Classes --- */
.container {
    max-width: var(--container-max-w);
    margin-inline: auto;
    padding-inline: var(--spacing-md);
}

.text-center { text-align: center; }
.mt-4 { margin-block-start: var(--spacing-lg); }
.mt-5 { margin-block-start: var(--spacing-xl); }
.mb-3 { margin-block-end: var(--spacing-md); }
.mb-4 { margin-block-end: var(--spacing-lg); }
.mb-5 { margin-block-end: var(--spacing-xl); }

.bg-light { background-color: var(--clr-bg-light); }

.section {
    padding-block: var(--spacing-xl);
}

.section-header {
    margin-block-end: var(--spacing-lg);
}

.section-badge {
    display: inline-block;
    padding: 0.25rem 1rem;
    background: rgba(194, 151, 56, 0.15);
    color: var(--clr-accent);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-block-end: var(--spacing-sm);
}

.section-title {
    font-size: 2.5rem;
    color: var(--clr-text-light);
    font-weight: 700;
    line-height: 1.2;
    margin-block-end: var(--spacing-sm);
}

.section-title.h3 { font-size: 2rem; }

.section-subtitle {
    font-size: 1.125rem;
    color: var(--clr-text-muted);
    max-width: 800px;
    margin-inline: auto;
}

.divider {
    border: 0;
    height: 1px;
    background: var(--clr-bg-alt);
    margin-block: var(--spacing-xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--clr-accent);
    color: var(--clr-primary-900); /* Dark text on gold button */
}

.btn-primary:hover {
    background-color: var(--clr-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(194, 151, 56, 0.3);
}

.btn-outline {
    background-color: transparent;
    color: var(--clr-text-light);
    border-color: var(--clr-text-light);
}

.btn-outline:hover {
    background-color: var(--clr-text-light);
    color: var(--clr-primary-900);
}

.btn-block { width: 100%; }

/* --- 3. Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    inset-inline: 0;
    height: 80px;
    z-index: 1000;
    background-color: rgba(7, 9, 14, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(30, 37, 48, 0.3);
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background-color: rgba(15, 19, 26, 0.95);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.brand-logo {
    height: 48px;
    width: auto;
    border-radius: var(--border-radius-sm);
}

.brand-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--clr-text-light);
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

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

.nav-link {
    text-decoration: none;
    color: var(--clr-text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding-block: 0.5rem;
    transition: var(--transition-normal);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    inset-inline-start: 0;
    width: 0;
    height: 2px;
    background-color: var(--clr-accent);
    transition: var(--transition-normal);
}

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

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

.lang-switcher {
    background-color: transparent;
    color: var(--clr-accent);
    border: 2px solid var(--clr-accent);
    padding: 0.4rem 1.25rem;
    border-radius: var(--border-radius-sm);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.lang-switcher:hover {
    background-color: var(--clr-accent);
    color: var(--clr-primary-900);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--clr-text-light);
    cursor: pointer;
}

/* --- 4. Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-block-start: 80px;
    overflow: hidden;
    color: var(--clr-text-light);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    z-index: -2;
    transform: scale(1.05); /* Slight zoom for initial state of animation space */
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.6) 100%);
    z-index: -1;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-block-end: var(--spacing-md);
    text-wrap: balance;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: rgba(255, 255, 255, 0.85);
    margin-block-end: var(--spacing-lg);
    max-width: 700px;
    margin-inline: auto;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 2rem;
    cursor: pointer;
    animation: bounce 2s infinite;
    opacity: 0.7;
    transition: var(--transition-fast);
}

.scroll-indicator:hover { opacity: 1; }

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-20px) translateX(-50%); }
    60% { transform: translateY(-10px) translateX(-50%); }
}

/* --- 5. Intro & About Section --- */
.intro-section {
    background-color: var(--clr-surface);
}

.text-block {
    max-width: 800px;
    margin-inline: auto;
    font-size: 1.125rem;
    color: var(--clr-text-muted);
}

.text-block p {
    margin-block-end: 1.5rem;
}

.intro-icon {
    font-size: 3rem;
    color: var(--clr-accent);
    display: block;
    text-align: center;
    margin-block-end: var(--spacing-md);
}

.highlight-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--clr-text-light);
    border-inline-start: 4px solid var(--clr-accent);
    padding-inline-start: 1.5rem;
    margin-block-start: 2rem;
}

/* About Grid */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text {
    font-size: 1.125rem;
    color: var(--clr-text-muted);
}

.about-text p {
    margin-block-end: 1rem;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    background: var(--clr-surface);
    padding: 1.5rem;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.feature-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: rgba(234, 88, 12, 0.1);
    color: var(--clr-accent);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.feature-item h3 {
    margin-block-end: 0.25rem;
    color: var(--clr-text-light);
}

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

/* Global Reach Map */
.global-reach {
    background: var(--clr-surface);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.map-image-wrapper {
    width: 100%;
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

.map-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* --- 6. Services & Products Grids --- */
.terminal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.terminal-card {
    position: relative;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
}

.terminal-card .card-img-wrapper {
    width: 100%;
    height: 100%;
}

.terminal-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.terminal-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15,23,42,0.8) 0%, transparent 60%);
    transition: opacity var(--transition-normal);
}

.terminal-card:hover img {
    transform: scale(1.1);
}

.terminal-card .card-body {
    position: absolute;
    bottom: 0;
    inset-inline: 0;
    padding: 1.5rem;
    z-index: 2;
}

.terminal-card h3 {
    color: white;
    margin: 0;
    font-size: 1.25rem;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--clr-surface);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.product-card .card-img-wrapper {
    height: 220px;
    overflow: hidden;
}

.product-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover img {
    transform: scale(1.05);
}

.product-card .card-body {
    padding: 1.5rem;
    flex-grow: 1;
}

.product-card h3 {
    color: var(--clr-text-light);
    margin-block-end: 0.5rem;
    font-size: 1.25rem;
}

.product-card p {
    color: var(--clr-text-muted);
    font-size: 0.95rem;
}

/* Why Us Banner */
.why-us-banner {
    background: var(--clr-primary-900);
    color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    text-align: center;
}

.why-item i {
    font-size: 3rem;
    color: var(--clr-accent);
    margin-block-end: 1rem;
}

.why-item h4 {
    font-size: 1.25rem;
    margin-block-end: 0.5rem;
}

.why-item p {
    color: rgba(255,255,255,0.7);
    font-size: 0.95rem;
}

/* --- 7. Location Section --- */
.locations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.location-card {
    background: var(--clr-surface);
    padding: 2rem;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: var(--transition-normal);
}

.location-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.location-card i {
    font-size: 2.5rem;
    color: var(--clr-primary-700);
    margin-block-end: 1rem;
}

.location-card h3 {
    margin-block-end: 1rem;
    color: var(--clr-text-light);
}

.location-card p {
    color: var(--clr-text-muted);
    margin-block-end: 0.25rem;
    line-height: 1.8;
}

.location-card address {
    font-style: normal;
}

.location-card .license {
    margin-block-start: 1rem;
    padding-block-start: 1rem;
    border-block-start: 1px solid var(--clr-bg-alt);
    color: var(--clr-text-light);
}

.map-wrapper {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    height: 450px;
    background: #e2e8f0;
}

/* --- 8. Contact Section --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.contact-info .contact-desc {
    font-size: 1.125rem;
    color: var(--clr-text-muted);
    margin-block-end: 2rem;
}

.contact-details {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-details li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-details i {
    font-size: 1.5rem;
    color: var(--clr-accent);
    margin-block-start: 0.25rem;
}

.contact-details .label {
    display: block;
    font-size: 0.875rem;
    color: var(--clr-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-block-end: 0.25rem;
}

.contact-details .value {
    color: var(--clr-text-light);
    font-weight: 600;
    font-size: 1.125rem;
    text-decoration: none;
    transition: var(--transition-fast);
}

.contact-details .value:hover {
    color: var(--clr-accent);
}

.office-img-wrapper {
    border-radius: var(--border-radius-md);
    overflow: hidden;
    aspect-ratio: 16/9;
}

.office-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Modern Form */
.contact-form-wrapper {
    background: var(--clr-surface);
    padding: 2.5rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.form-header {
    margin-block-end: 2rem;
}

.form-header h3 {
    font-size: 1.5rem;
    color: var(--clr-text-light);
}

.form-group {
    position: relative;
    margin-block-end: 1.5rem;
}

.form-control {
    width: 100%;
    padding: 1rem 1rem 0.5rem;
    border: none;
    border-bottom: 2px solid var(--clr-bg-alt);
    background: transparent;
    font-family: inherit;
    font-size: 1rem;
    color: var(--clr-text-light);
    transition: border-color var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-bottom-color: var(--clr-accent);
}

.form-group label {
    position: absolute;
    inset-inline-start: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--clr-text-muted);
    transition: var(--transition-fast);
    pointer-events: none;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
    padding-top: 1.5rem;
}

textarea.form-control + label {
    top: 1.5rem;
    transform: none;
}

.form-control:focus + label,
.form-control:not(:placeholder-shown) + label {
    top: 0;
    transform: translateY(0);
    font-size: 0.75rem;
    color: var(--clr-accent);
}

textarea.form-control:focus + label,
textarea.form-control:not(:placeholder-shown) + label {
    top: -0.25rem;
}

/* --- 9. Footer --- */
.footer {
    background: var(--clr-primary-900);
    color: rgba(255, 255, 255, 0.7);
    padding-block-start: var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 3rem;
    margin-block-end: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-block-end: 1rem;
}

.footer-logo img {
    height: 40px;
    border-radius: 4px;
}

.footer-logo .brand-name {
    color: white;
    font-size: 1.125rem;
}

.footer-col h4 {
    color: white;
    font-size: 1.125rem;
    margin-block-end: 1.5rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-block-end: 0.75rem;
}

.footer-links a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: white;
    padding-inline-start: 4px;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-block-end: 1rem;
}

.footer-contact i {
    color: var(--clr-accent);
    font-size: 1.25rem;
}

.footer-bottom {
    padding-block: 1.5rem;
    border-block-start: 1px solid rgba(255,255,255,0.1);
    text-align: center;
    font-size: 0.875rem;
}

/* --- 10. Animations & Interactivity --- */
.fade-in-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.stagger-group > * {
    opacity: 0;
    transform: translateY(20px);
}

.stagger-group.visible > * {
    animation: staggerFadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.stagger-group.visible > *:nth-child(1) { animation-delay: 0.1s; }
.stagger-group.visible > *:nth-child(2) { animation-delay: 0.2s; }
.stagger-group.visible > *:nth-child(3) { animation-delay: 0.3s; }
.stagger-group.visible > *:nth-child(4) { animation-delay: 0.4s; }

@keyframes staggerFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- 11. Responsive Design --- */
@media (max-width: 992px) {
    .about-grid, .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero-title {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--clr-surface);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-md);
        border-top: 1px solid var(--clr-bg-alt);
        
        /* Bulletproof hiding for all browsers */
        opacity: 0;
        visibility: hidden;
        transform: translateY(-15px);
        transition: all 0.3s ease;
    }
    
    .nav-menu.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .nav-links {
        flex-direction: column;
        align-items: center;
        width: 100%;
        gap: 1.5rem;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding-block: var(--spacing-lg);
    }
    
    .container {
        padding-inline: 1.5rem;
    }
    
    .why-us-banner {
        padding: 2.5rem 1.5rem;
    }
    
    .why-us-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-bg {
        background-position: center;
    }
    
    .contact-form-wrapper {
        padding: 1.5rem;
    }
}