:root {
    --bg-color: #0f1115;
    --bg-secondary: #161b22;
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --accent-color: #cda45e;
    /* Gold */
    --accent-hover: #d4af37;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Montserrat', sans-serif;
    --transition-speed: 0.4s;
    --card-bg: rgba(255, 255, 255, 0.03);
    --glass-border: 1px solid rgba(255, 255, 255, 0.05);
    --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    margin-top: 0;
    font-weight: 700;
    color: var(--text-primary);
}

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

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

/* --- Utilities --- */
.fade-in-section,
.fade-in-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* --- Header --- */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: rgba(15, 17, 21, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: var(--glass-border);
    transition: padding 0.3s ease;
}

header.scrolled {
    padding: 15px 50px;
}

.header-logo-container img {
    height: 60px;
    /* Refined logo size */
    width: auto;
}

.desktop-nav ul {
    list-style: none;
    display: flex;
    gap: 40px;
    margin: 0;
    padding: 0;
}

.desktop-nav a {
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-primary);
    position: relative;
}

.desktop-nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

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

.desktop-nav a:hover::after {
    width: 100%;
}

.mobile-nav {
    display: none;
}

/* --- Hero Section --- */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.carousel-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.carousel-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    opacity: 0;
    transition: opacity 1.5s ease-in-out, transform 6s ease;
    transform: scale(1.1);
}

.carousel-img.active {
    opacity: 1;
    transform: scale(1);
}

.background-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(15, 17, 21, 0.3), rgba(15, 17, 21, 0.9));
    z-index: 1;
}

.hero-text-container {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 20px;
    animation: fadeInUp 1.2s ease-out;
}

.hero-text-container h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero-text-container h3 {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-text-container p {
    font-size: 0.9rem;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
}

.carousel-button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.carousel-button:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--bg-color);
}

.carousel-button.prev {
    left: 30px;
}

.carousel-button.next {
    right: 30px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

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

/* --- Services Section --- */
.services-section {
    padding: 100px 50px;
    background-color: var(--bg-color);
    position: relative;
}

.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    display: table;
    margin-left: auto;
    margin-right: auto;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    margin: 20px auto 0;
}

.services-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
}

.service-card {
    background: var(--card-bg);
    border: var(--glass-border);
    padding: 40px 30px;
    border-radius: 4px;
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.03), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.service-card:hover::before {
    transform: translateX(100%);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-soft);
    border-color: var(--accent-color);
}

.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--accent-color);
    transition: width 0.4s ease;
}

.service-card:hover::after {
    width: 100%;
}

.icon-wrapper {
    width: 80px;
    height: 80px;
    background: rgba(205, 164, 94, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
}

.icon-wrapper i {
    font-size: 2rem;
    color: var(--accent-color);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.service-card ul {
    list-style: none;
    padding: 0;
    margin-bottom: 25px;
}

.service-card ul li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.service-card ul li::before {
    content: '•';
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-size: 1.2rem;
    line-height: 1;
}

.learn-more-btn {
    display: inline-block;
    padding: 10px 0;
    color: var(--accent-color);
    font-weight: 600;
    font-size: 0.9rem;
    position: relative;
    transition: color 0.3s ease;
}

.learn-more-btn::after {
    content: '→';
    margin-left: 5px;
    transition: margin-left 0.3s ease;
}

.learn-more-btn:hover {
    color: #fff;
}

.learn-more-btn:hover::after {
    margin-left: 10px;
}

/* --- Projects Section --- */
.placeholder-section {
    padding: 100px 0;
    background-color: var(--bg-secondary);
}

.banner-image {
    position: relative;
    height: 60vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 80px;
}

.banner-image h1 {
    position: relative;
    z-index: 2;
    font-size: 4rem;
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}

.projects-carousel .carousel-img {
    filter: brightness(0.6);
}

.image-grid {
    text-align: center;
    margin-bottom: 40px;
    padding: 0 20px;
}

.image-grid h2 {
    font-size: 1.8rem;
    color: var(--accent-color);
    margin-bottom: 10px;
}

.image-grid h3 {
    font-size: 1.4rem;
    font-weight: 400;
}

.grid-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    padding: 0 50px 80px 50px;
    max-width: 1600px;
    margin: 0 auto;
}

.grid-item {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
    cursor: pointer;
    aspect-ratio: 4/3;
    flex: 1 1 300px;
    max-width: 450px;
}

.grid-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

/* --- Contact Section --- */
.contact-section {
    padding: 100px 50px;
    background-color: var(--bg-color);
    text-align: center;
}

.contact-intro {
    max-width: 700px;
    margin: 0 auto 50px;
    color: var(--text-secondary);
}

.contact-form {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-secondary);
    padding: 50px;
    border-radius: 4px;
    border: var(--glass-border);
}

.form-group {
    margin-bottom: 25px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-size: 0.9rem;
    color: var(--accent-color);
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 15px;
    color: #fff;
    font-family: var(--font-body);
    font-size: 1rem;
    border-radius: 2px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.submit-btn {
    background: var(--accent-color);
    color: #000;
    border: none;
    padding: 15px 40px;
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
    border-radius: 2px;
    margin-top: 20px;
}

.submit-btn:hover {
    background: #fff;
    transform: translateY(-2px);
}

.form-group select option {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

/* --- Section Divider --- */
.section-divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--accent-color), transparent);
    opacity: 0.35;
}

/* --- About Section --- */
.about-section {
    padding: 100px 50px;
    background-color: var(--bg-secondary);
}

.about-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-title {
    text-align: left;
    margin-left: 0;
    margin-right: 0;
    display: block;
}

.about-title::after {
    margin-left: 0;
    margin-right: auto;
}

.about-lead {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 20px;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 30px;
}

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

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--accent-color);
    line-height: 1;
}

.stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    margin-top: 8px;
}

.about-img {
    width: 100%;
    height: 440px;
    object-fit: cover;
    border-radius: 4px;
    border: var(--glass-border);
}

/* --- Carousel Dots --- */
.carousel-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
    padding: 0;
}

.carousel-dot.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    transform: scale(1.3);
}

/* --- Projects Filter Bar --- */
.projects-filter-bar {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin: 0 0 60px 0;
    padding: 0 20px;
}

.filter-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--text-secondary);
    padding: 10px 24px;
    font-family: var(--font-body);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: #000;
    font-weight: 600;
}

.project-block.hidden {
    display: none;
}

/* --- Project Header Typography --- */
.project-header {
    max-width: 800px;
    margin: 0 auto;
}

.project-category-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-color);
    margin-bottom: 8px;
    font-weight: 600;
}

.project-title {
    font-size: 1.5rem;
    margin-bottom: 8px;
    font-weight: 400;
}

.project-location {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 0;
}

.project-location i {
    color: var(--accent-color);
    margin-right: 6px;
}


/* --- Form Feedback --- */
.form-status {
    padding: 12px 16px;
    border-radius: 2px;
    font-size: 0.9rem;
    margin-bottom: 10px;
    display: none;
    text-align: left;
}

.form-status.loading {
    display: block;
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-status.success {
    display: block;
    color: #4caf50;
    border: 1px solid #4caf50;
    background: rgba(76, 175, 80, 0.08);
}

.form-status.error {
    display: block;
    color: #f44336;
    border: 1px solid #f44336;
    background: rgba(244, 67, 54, 0.08);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* --- Modal Caption Enhancement --- */
#caption {
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    text-align: center;
    margin-top: 15px;
    max-width: 600px;
    line-height: 1.6;
    padding: 0 20px;
}

#caption strong {
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    display: block;
    margin-bottom: 4px;
}

/* --- Social Disabled --- */
.social-disabled {
    opacity: 0.35;
    cursor: not-allowed;
    pointer-events: none;
}

/* --- Footer --- */
footer {
    background: #0b0c0e;
    padding: 60px 50px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto 50px;
    text-align: left;
}

.footer-logo {
    height: 50px;
    width: auto;
    margin-bottom: 20px;
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin: 0;
}

.footer-col-title {
    font-family: var(--font-body);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-color);
    margin-bottom: 20px;
    margin-top: 0;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

.footer-col p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 8px;
    margin-top: 0;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-copy {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin: 0;
}

footer p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 2;
}

.social-links {
    margin-top: 0;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    margin: 0 10px;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: #000;
}

/* --- Modal --- */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.modal.active {
    display: flex;
}

.modal-content {
    max-width: 90%;
    max-height: 80vh;
    border: 2px solid var(--accent-color);
}

.close-button {
    position: absolute;
    top: 30px;
    right: 40px;
    color: #fff;
    font-family: var(--font-heading);
    font-size: 1.2rem;
}

/* --- Floating Social FAB --- */
.floating-social-fab {
    position: fixed;
    bottom: 20px;
    right: 20px;
    top: auto;
    left: auto;
    z-index: 2000;
    pointer-events: none;
}

.main-fab,
.social-item {
    pointer-events: auto;
}

.main-fab {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--bg-color);
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.main-fab:hover {
    background-color: var(--accent-color);
    color: var(--bg-color);
    transform: scale(1.05);
}

.main-fab i {
    position: absolute;
    transition: all 0.3s ease;
}

.main-fab .close-icon {
    opacity: 0;
    transform: rotate(-180deg);
}

.floating-social-fab.active .main-fab .fa-home {
    opacity: 0;
    transform: rotate(180deg);
}

.floating-social-fab.active .main-fab .close-icon {
    opacity: 1;
    transform: rotate(0);
}

.social-options {
    position: absolute;
    bottom: calc(100% + 15px);
    right: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

.floating-social-fab.active .social-options {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.social-item {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-item:hover {
    background-color: var(--accent-color);
    color: var(--bg-color);
    transform: translateY(-3px);
}

/* --- Mobile Responsiveness --- */
@media (max-width: 768px) {
    header {
        padding: 15px 20px;
    }

    .desktop-nav {
        display: none;
    }

    .mobile-nav {
        display: block;
    }

    .hamburger-icon {
        background: none;
        border: none;
        color: #fff;
        font-size: 1.8rem;
        cursor: pointer;
    }

    .mobile-menu {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--bg-secondary);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        padding: 20px 0;
    }

    body.mobile-menu-open .mobile-menu {
        display: block;
    }

    .mobile-menu ul {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .mobile-menu li a {
        display: block;
        padding: 15px 30px;
        color: var(--text-primary);
        font-size: 1.1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

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

    .section-title {
        font-size: 2.2rem;
    }

    .services-section,
    .contact-section {
        padding: 60px 20px;
    }

    .grid-container {
        padding: 0 20px 40px 20px;
    }

    .grid-item {
        flex: 1 1 100%;
        max-width: 100%;
    }

    .contact-form {
        padding: 30px 20px;
    }

    .floating-social-fab {
        bottom: 15px !important;
        right: 15px !important;
    }

    .main-fab {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }

    .social-item {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .about-section {
        padding: 60px 20px;
    }

    .about-inner {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-stats {
        gap: 20px;
        flex-wrap: wrap;
    }

    .about-img {
        height: 280px;
    }

    .projects-filter-bar {
        gap: 8px;
    }

    .filter-btn {
        padding: 8px 16px;
        font-size: 0.8rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }


}