:root {
    --primary-color: #0f172a;
    /* Slate */
    --secondary-color: #f59e0b;
    /* Amber */
    --bg-light: #f8fafc;
    /* Concrete/Light Gray */
    --text-dark: #333333;
    --text-light: #64748b;
    --white: #ffffff;
    --dark-overlay: rgba(15, 23, 42, 0.7);
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-light);
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
    color: inherit;
}

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

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    font-weight: 700;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.section-header .line {
    width: 60px;
    height: 4px;
    background-color: var(--secondary-color);
    margin: 0 auto;
    border-radius: 2px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-family: var(--font-heading);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
    transition: var(--transition);
    cursor: pointer;
    background-color: var(--secondary-color);
    color: var(--white);
    border: none;
}

.btn:hover {
    background-color: #d97706;
    /* Darker Amber */
}

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

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

/* Navbar Styles */
.navbar {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 10px 0;
    transition: var(--transition);
}

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

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 92px;
    width: auto;
}

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

.nav-links li {
    position: relative;
}

.nav-links a {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--primary-color);
    transition: var(--transition);
    position: relative;
}

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

.hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.hamburger .bar {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--white);
    margin: 5px 0;
    transition: var(--transition);
}

/* Mobile Menu */
.mobile-menu-overlay {
    display: none;
}

/* Hero Slider */
.hero-slider {
    position: relative;
    height: calc(100vh - 110px);
    margin-top: 110px;
    overflow: hidden;
    width: 100%;
}

.slider-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    z-index: 1;
}

.slide.active {
    opacity: 1;
    z-index: 2;
}

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

.slider-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.2));
    z-index: 3;
    pointer-events: none;
}

.slider-static-content {
    position: absolute;
    top: 15%;
    left: 5%;
    max-width: 600px;
    z-index: 4;
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.slider-static-content h1 {
    font-size: 2.8rem;
    color: var(--white);
    margin-bottom: 15px;
    line-height: 1.2;
}

.slider-static-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    font-weight: 300;
}

.slider-info-box {
    position: absolute;
    top: auto;
    bottom: 15%;
    right: 5%;
    width: 350px;
    background: rgba(15, 23, 42, 0.7);
    /* Primary color with opacity */
    backdrop-filter: blur(8px);
    padding: 30px;
    border-left: 5px solid var(--secondary-color);
    color: var(--white);
    z-index: 4;
    transition: all 0.5s ease;
}

.slider-info-box h2 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.slider-info-box p {
    font-size: 1rem;
    line-height: 1.6;
    opacity: 0.9;
}

.slider-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 4;
}

.slider-indicator {
    width: 40px;
    height: 4px;
    background-color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.slider-indicator.active {
    background-color: var(--secondary-color);
    width: 60px;
}

.slider-indicator:hover {
    background-color: var(--white);
}

@media (max-width: 768px) {
    .hero-slider {
        height: 60vh;
        margin-top: 70px;
        /* Adjust for smaller mobile header if needed */
    }

    .slider-info-box {
        top: auto;
        bottom: 80px;
        right: 0;
        left: 0;
        width: 100%;
        background: rgba(15, 23, 42, 0.85);
        border-left: none;
        border-top: 4px solid var(--secondary-color);
    }
}

/* Page Header (New for Multi-Page) */
.page-header {
    position: relative;
    padding: 120px 0 80px;
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    margin-top: 112px;
    /* Background Image - City Silhouette */
    background-image: url('../assets/images/city-silhouette.jpg');
    background-position: bottom center;
    background-repeat: no-repeat;
    background-size: cover;
}

.page-header h1 {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: 10px;
}

.page-header p {
    opacity: 0.8;
}

/* About Page Styles */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.founder-info {
    background-color: var(--white);
    padding: 20px;
    border-left: 4px solid var(--secondary-color);
    margin-top: 20px;
    font-style: italic;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.project-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    height: 300px;
    box-shadow: var(--shadow);
}

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

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

.project-overlay {
    position: absolute;
    bottom: -100%;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.9), transparent);
    color: var(--white);
    transition: all 0.4s ease;
}

.project-item:hover .project-overlay {
    bottom: 0;
}

.project-overlay h4 {
    color: var(--secondary-color);
    font-size: 1.2rem;
    margin-bottom: 5px;
}

/* Services Page Styles */
.services-detailed .service-card {
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: 30px;
    background: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.service-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    padding: 10px;
    background: rgba(245, 158, 11, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary-color);
}

.service-icon svg {
    width: 100%;
    height: 100%;
}

.service-list {
    margin-top: 15px;
    list-style-type: disc;
    padding-left: 20px;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Contact Page Styles */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
}

.contact-info-card,
.contact-form-card {
    background-color: var(--white);
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.contact-info-card h2,
.contact-form-card h2 {
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.info-item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
    margin-bottom: 25px;
}

.info-item svg {
    color: var(--secondary-color);
    min-width: 24px;
}




/* Contact Links */
.contact-link {
    color: inherit;
    transition: var(--transition);
}

.contact-link:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

/* WhatsApp Button */
.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background-color: #25D366;
    color: var(--white);
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 20px;
    transition: var(--transition);
    width: fit-content;
}

.btn-whatsapp:hover {
    background-color: #128C7E;
    color: var(--white);
}

.btn-whatsapp svg {
    flex-shrink: 0;
}

/* Form Styles */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: var(--font-body);
}

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

/* Footer (Same as before) */
.footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-info h3 {
    color: var(--secondary-color);
    margin-bottom: 15px;
}

.footer-info p {
    opacity: 0.8;
    margin-bottom: 5px;
}

.contact-details {
    margin-top: 20px;
}

.footer-social h4 {
    color: var(--white);
    margin-bottom: 15px;
}

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

.social-icons a {
    color: var(--white);
    transition: var(--transition);
}

.social-icons a:hover {
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    opacity: 0.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar-container {
        padding: 0 20px;
    }

    .hamburger {
        display: block;
        z-index: 1001;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hamburger.active .bar {
        background-color: var(--secondary-color);
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--primary-color);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: right 0.3s ease-in-out;
        z-index: 999;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.2);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        color: var(--white);
        font-size: 1.2rem;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

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

    .section-header h2 {
        font-size: 2rem;
    }
}

.section-header h2 {
    font-size: 2rem;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.8);
    transition: var(--transition);
    z-index: 1000;
    box-shadow: var(--shadow);
}

.back-to-top.show {
    opacity: 0.7;
    visibility: visible;
    transform: scale(1);
}

.back-to-top:hover {
    opacity: 1 !important;
    transform: scale(1.1) !important;
    background-color: var(--secondary-color);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
}

/* Service Page Redesign (Zig-Zag) */
.service-section {
    padding: 120px 0;
    overflow: hidden;
    background-color: var(--white);
}

.service-section:nth-child(even) {
    background-color: var(--bg-light);
}

.service-row {
    display: flex;
    align-items: center;
    gap: 60px;
}

.service-section:nth-child(even) .service-row {
    flex-direction: row-reverse;
}

.service-text,
.service-image {
    flex: 1;
}

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

.service-primary-desc {
    font-size: 1.1rem;
    color: var(--text-dark);
    line-height: 1.8;
    margin-bottom: 30px;
}

.service-text h3 {
    font-size: 1.3rem;
    color: var(--secondary-color);
    margin-bottom: 10px;
    font-weight: 600;
}

.service-secondary-desc {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 30px;
}

.btn-link {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition);
}

.btn-link:hover {
    color: var(--secondary-color);
    transform: translateX(5px);
}

.service-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-section:hover .service-image img {
    transform: scale(1.02);
    box-shadow: var(--shadow-hover);
}

@media (max-width: 900px) {

    .service-row,
    .service-section:nth-child(even) .service-row {
        flex-direction: column;
        gap: 40px;
    }

    .service-image img {
        height: 300px;
    }

    .service-section {
        padding: 60px 0;
    }
}

/* Project Detail Page Styles */
.project-hero {
    position: relative;
    height: 60vh;
    min-height: 400px;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 70px;
    /* Navbar height */
}

.project-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
}

.project-hero h1 {
    position: relative;
    color: var(--white);
    font-size: 3rem;
    text-align: center;
    z-index: 1;
}

.project-detail-page {
    padding: 60px 0;
}

.breadcrumb {
    margin-bottom: 30px;
}

.breadcrumb a {
    color: var(--secondary-color);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

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

.project-detail-grid {
    display: grid;
    grid-template-columns: 7fr 3fr;
    gap: 50px;
}

.project-description h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.project-description p {
    margin-bottom: 20px;
    line-height: 1.8;
    color: var(--text-dark);
}

.project-gallery {
    margin-top: 40px;
}

.project-gallery h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.gallery-grid img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    transition: var(--transition);
    cursor: pointer;
}

.gallery-grid img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-hover);
}

.project-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.project-info-box {
    background-color: #f1f5f9;
    /* Slate 100 */
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.project-info-box h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e2e8f0;
}

.project-info-list li {
    margin-bottom: 15px;
    display: flex;
    flex-direction: column;
}

.project-info-list strong {
    color: var(--primary-color);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 5px;
}

.project-info-list span {
    color: var(--text-light);
    font-size: 1.05rem;
}

@media (max-width: 900px) {
    .project-detail-grid {
        grid-template-columns: 1fr;
    }

    .project-sidebar {
        position: static;
        margin-top: 40px;
    }
}