:root {
    /* Colors */
    --primary-bg: #111111; /* Deepest black/charcoal for background */
    --secondary-bg: #1a1a1a; /* Slightly lighter for cards/sections */
    --accent-color: #e0a324; /* Muted Gold/Amber for highlights */
    --text-color: #c0c0c0; /* Light gray for body text */
    --heading-color: #ffffff; /* Pure white for main headings */
    --border-color: #333333; /* Darker gray for borders/separators */
    --hover-color: #ffc107; /* Brighter gold for hover effects */
    --overlay-color: rgba(0, 0, 0, 0.7); /* Dark overlay for images */

    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;

    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;

    /* Transitions */
    --transition-speed: 0.3s ease-in-out;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--primary-bg);
    overflow-x: hidden; /* Prevent horizontal scroll */
}

/* Prevent body scroll when mobile nav is open */
body.no-scroll {
    overflow: hidden;
}

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

a:hover {
    color: var(--hover-color);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section-padding {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    color: var(--heading-color);
    text-align: center;
    margin-bottom: var(--spacing-md);
    position: relative;
    padding-bottom: var(--spacing-sm);
    letter-spacing: 0.05em;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--accent-color);
    border-radius: var(--border-radius-sm);
}

.section-description {
    font-size: 1.15rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    color: var(--text-color);
    line-height: 1.8;
}

.light-text {
    color: var(--heading-color);
}

/* Header */
.main-header {
    background-color: var(--primary-bg);
    padding: var(--spacing-md) 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-color);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.main-nav .nav-list {
    display: flex;
    list-style: none;
}

.main-nav .nav-list li {
    margin-left: var(--spacing-lg);
}

.main-nav .nav-list a {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 1rem;
    color: var(--text-color);
    padding: var(--spacing-xs) 0;
    position: relative;
}

.main-nav .nav-list a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width var(--transition-speed);
}

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

/* Hamburger Menu */
.hamburger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
    z-index: 1001; /* Above nav list */
}

.hamburger-menu span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--heading-color);
    transition: all var(--transition-speed);
}

.hamburger-menu.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.hamburger-menu.active span:nth-child(2) {
    opacity: 1;
}

.hamburger-menu.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}


/* Hero Section */
.hero-section {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--heading-color);
    background: url('images/image_8.jpg') center/cover no-repeat fixed; /* Parallax effect */
    padding-top: 80px; /* Offset for fixed header */
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay-color);
    backdrop-filter: blur(2px); /* Subtle blur for depth */
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

/* Eye-catching glass panel for hero title */
.hero-title-wrap {
    display: inline-block;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 14px;
    padding: calc(var(--spacing-md) * 1.2) calc(var(--spacing-lg));
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.6);
    letter-spacing: 0.08em;
    animation: fadeInScale 1s ease-out forwards;
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: 1.8rem;
    font-weight: 300;
    margin-bottom: var(--spacing-xl);
    text-shadow: 1px 1px 6px rgba(0, 0, 0, 0.5);
    animation: fadeIn 1.5s ease-out 0.5s forwards;
    opacity: 1; /* Start hidden for animation */
}

@keyframes fadeInScale {
    from {
        opacity: 1;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fadeIn {
    from {
        opacity: 1;
    }
    to {
        opacity: 1;
    }
}

/* Scroll Down Indicator */
.scroll-down-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 40px;
    border: 2px solid var(--heading-color);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
    opacity: 1;
    animation: fadeIn 1.5s ease-out 1s forwards, bounce 2s infinite 2s;
}

.scroll-down-indicator span {
    display: block;
    width: 4px;
    height: 4px;
    background-color: var(--heading-color);
    border-radius: 50%;
    animation: scrollAnimation 1.5s infinite;
}

@keyframes scrollAnimation {
    0% {
        transform: translateY(0);
        opacity: 1;
    }
    100% {
        transform: translateY(15px);
        opacity: 1;
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}


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

.about-image-wrapper {
    position: relative;
    padding: var(--spacing-sm);
    background: linear-gradient(45deg, var(--accent-color), transparent); /* Subtle gradient border effect */
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.about-image {
    border-radius: var(--border-radius-md);
    filter: brightness(0.8) contrast(1.1);
    transition: filter var(--transition-speed);
}

.about-image-wrapper:hover .about-image {
    filter: brightness(1) contrast(1);
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: var(--border-radius-md);
    transition: background-color var(--transition-speed);
}

.about-image-wrapper:hover .image-overlay {
    background-color: rgba(0, 0, 0, 0);
}

.about-text-wrapper p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    line-height: 1.8;
}

/* Expertise Section */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.expertise-card {
    background-color: var(--secondary-bg);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-md);
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed), background-color var(--transition-speed);
    border: 1px solid var(--border-color);
}

.expertise-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    background-color: #242424; /* Slightly lighter on hover */
}

.expertise-card .card-icon {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
    display: inline-block;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-md);
    background-color: rgba(224, 163, 36, 0.1); /* Subtle accent background for icon */
    transition: transform var(--transition-speed);
}

.expertise-card:hover .card-icon {
    transform: rotateY(15deg) scale(1.1);
}

.expertise-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--heading-color);
    margin-bottom: var(--spacing-sm);
    letter-spacing: 0.03em;
}

.expertise-card p {
    font-size: 1rem;
    line-height: 1.7;
}

/* Portfolio Section */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.portfolio-item {
    position: relative;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.portfolio-item:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.portfolio-item img {
    width: 100%;
    height: 250px; /* Fixed height for consistency */
    object-fit: cover;
    display: block;
    filter: brightness(0.8);
    transition: filter var(--transition-speed);
}

.portfolio-item:hover img {
    filter: brightness(1);
}

.item-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--heading-color);
    opacity: 1;
    transform: translateY(100%);
    transition: opacity var(--transition-speed), transform var(--transition-speed);
    padding: var(--spacing-md);
    text-align: center;
}

.portfolio-item:hover .item-overlay {
    opacity: 1;
    transform: translateY(0);
}

.item-overlay h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.05em;
    color: var(--accent-color);
}

.item-overlay p {
    font-size: 1rem;
    font-weight: 300;
}

/* Vision Section (Parallax) */
.vision-section {
    position: relative;
    background: url('images/image_9.jpg') center/cover no-repeat fixed;
    color: var(--heading-color);
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.vision-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6); /* Darker overlay for text readability */
    z-index: 1;
}

.vision-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
}

.vision-content .section-title,
.vision-content .section-description {
    color: var(--heading-color); /* Ensure titles and descriptions are white */
}

.vision-content .section-description {
    margin-bottom: var(--spacing-lg);
}

.vision-content p {
    font-size: 1.15rem;
    line-height: 1.9;
    margin-bottom: var(--spacing-md);
    color: #e0e0e0; /* Slightly off-white for contrast */
}

.vision-content .quote {
    font-family: var(--font-heading);
    font-style: italic;
    font-size: 1.4rem;
    margin-top: var(--spacing-xl);
    color: var(--accent-color);
    position: relative;
    padding: var(--spacing-sm);
}

.vision-content .quote::before {
    content: '“';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 4rem;
    line-height: 1;
    color: rgba(224, 163, 36, 0.3);
}

/* Contact Section */
.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.contact-card {
    background-color: var(--secondary-bg);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-md);
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed), background-color var(--transition-speed);
    border: 1px solid var(--border-color);
}

.contact-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    background-color: #242424;
}

.contact-card .card-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: var(--spacing-md);
}

.contact-card h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--heading-color);
    margin-bottom: var(--spacing-xs);
}

.contact-card p {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

/* Footer */
.main-footer {
    background-color: var(--primary-bg);
    color: var(--text-color);
    padding: var(--spacing-xl) 0 var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
}

.footer-brand .logo {
    margin-bottom: var(--spacing-sm);
    display: inline-block;
}

.footer-brand p {
    font-size: 0.95rem;
    line-height: 1.7;
    max-width: 250px;
}

.footer-nav h4,
.social-links h4 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--heading-color);
    margin-bottom: var(--spacing-md);
}

.footer-nav ul {
    list-style: none;
}

.footer-nav li {
    margin-bottom: var(--spacing-sm);
}

.footer-nav a {
    color: var(--text-color);
    font-size: 1rem;
}

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

.social-links a {
    font-size: 1.5rem;
    margin-right: var(--spacing-md);
    color: var(--text-color);
    transition: color var(--transition-speed);
}

.social-links a:hover {
    color: var(--accent-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-color);
}

/* Scroll Reveal Animations */
.reveal-element,
.reveal-card,
.reveal-image,
.reveal-text {
    opacity: 1;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal-element.visible,
.reveal-card.visible,
.reveal-image.visible,
.reveal-text.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered reveal for cards */
.expertise-grid .reveal-card:nth-child(1),
.portfolio-grid .reveal-card:nth-child(1),
.contact-info-grid .reveal-card:nth-child(1) { transition-delay: 0s; }
.expertise-grid .reveal-card:nth-child(2),
.portfolio-grid .reveal-card:nth-child(2),
.contact-info-grid .reveal-card:nth-child(2) { transition-delay: 0.1s; }
.expertise-grid .reveal-card:nth-child(3),
.portfolio-grid .reveal-card:nth-child(3),
.contact-info-grid .reveal-card:nth-child(3) { transition-delay: 0.2s; }
.expertise-grid .reveal-card:nth-child(4),
.portfolio-grid .reveal-card:nth-child(4),
.contact-info-grid .reveal-card:nth-child(4) { transition-delay: 0.3s; }
.expertise-grid .reveal-card:nth-child(5),
.portfolio-grid .reveal-card:nth-child(5) { transition-delay: 0.4s; }
.expertise-grid .reveal-card:nth-child(6),
.portfolio-grid .reveal-card:nth-child(6) { transition-delay: 0.5s; }

/* Responsive Design */
@media (max-width: 992px) {
    .main-nav {
        position: fixed;
        top: 0;
        left: -100%; /* Hidden by default */
        width: 70%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--secondary-bg);
        padding-top: var(--spacing-xl);
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
        transition: left var(--transition-speed);
        z-index: 999;
    }

    .main-nav.active {
        left: 0; /* Show on active */
    }

    .main-nav .nav-list {
        flex-direction: column;
        align-items: center;
        width: 100%;
        height: calc(100% - 80px); /* Adjust for header if needed */
        overflow-y: auto; /* Allow scrolling for many links */
    }

    .main-nav .nav-list li {
        margin: var(--spacing-md) 0;
    }

    .main-nav .nav-list a {
        font-size: 1.2rem;
        padding: var(--spacing-sm) var(--spacing-lg);
        display: block;
        width: 100%;
        text-align: center;
    }

    .hamburger-menu {
        display: flex;
    }

    .hero-title {
        font-size: 3.5rem;
    }

    .hero-subtitle {
        font-size: 1.5rem;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-image-wrapper {
        margin-bottom: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2.2rem;
    }

    .section-description {
        font-size: 1rem;
        margin-bottom: var(--spacing-lg);
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .expertise-grid,
    .portfolio-grid,
    .contact-info-grid,
    .footer-content {
        grid-template-columns: 1fr;
    }

    .expertise-card,
    .contact-card,
    .portfolio-item {
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }

    .footer-brand, .footer-nav, .social-links {
        text-align: center;
    }

    .social-links {
        margin-top: var(--spacing-lg);
    }

    .social-links a {
        margin: 0 var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }
    
    .logo {
        font-size: 1.5rem;
    }
}

/* Custom Scrollbar for Webkit browsers */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--primary-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--hover-color);
}
/* Safe visibility overrides (auto-added) */
:root, html, body, main, header, footer, section, .container, .content {
  opacity: 1 !important;
  visibility: visible !important;
}