/* --- Global Reset & Styles --- */
:root {
    --primary: #D32F2F;        /* Corporate Deep Red */
    --primary-dark: #B71C1C;   /* Darker Red Accent */
    --dark: #1E1E24;           /* Charcoal Business Text */
    --light: #F4F5F7;          /* Soft Gray Component Background */
    --white: #FFFFFF;          /* Clean White Layout Base */
    --gray: #6C757D;           /* Muted Descriptive Text */
    --transition: all 0.3s ease-in-out;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
    scroll-behavior: smooth;
}

body {
    color: var(--dark);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section {
    padding: 60px 0;
}

@media (min-width: 768px) {
    .section {
        padding: 80px 0;
    }
}

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

.text-center {
    text-align: center;
}

h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--dark);
}

@media (min-width: 768px) {
    h2 {
        font-size: 2.5rem;
        margin-bottom: 40px;
    }
}

h2 span {
    color: var(--primary);
}

.sub-title {
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 10px;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    outline: none;
    text-align: center;
}

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

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

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

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

.btn-block {
    display: block;
    width: 100%;
}

/* --- Top Bar info panel --- */
.top-bar {
    background-color: var(--dark);
    color: var(--white);
    font-size: 0.85rem;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

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

.top-bar a {
    color: var(--white);
    text-decoration: none;
}

.top-bar span {
    margin-right: 20px;
}

.top-bar span:last-child {
    margin-right: 0;
}

.top-bar i {
    color: var(--primary);
    margin-right: 5px;
}

/* --- Navigation Header --- */
.logo-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    padding: 2px 0;
}

.header-logo-img {
    height: 50px;
    width: auto;
    object-fit: contain;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    transition: var(--transition);
}

@media (min-width: 768px) {
    .header-logo-img {
        height: 65px;
    }
}

.header-logo-img:hover {
    transform: scale(1.03);
}

.footer-logo-brand {
    margin-bottom: 20px;
    display: inline-block;
    background-color: var(--white);
    padding: 10px 15px;
    border-radius: 6px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.footer-logo-img {
    height: 55px;
    width: auto;
    display: block;
    object-fit: contain;
    image-rendering: -webkit-optimize-contrast;
}

.main-header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
}

@media (min-width: 768px) {
    .nav-container {
        padding: 15px 0;
    }
}

.logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark);
    text-decoration: none;
    white-space: nowrap;
    margin-right: 10px;
}

@media (min-width: 768px) {
    .logo {
        font-size: 1.5rem;
    }
}

.logo span {
    color: var(--primary);
}

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

.nav-link {
    color: var(--dark);
    text-decoration: none;
    margin: 0 12px;
    font-weight: 500;
    transition: var(--transition);
}

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

.nav-btn {
    background-color: var(--primary);
    color: var(--white);
    text-decoration: none;
    padding: 8px 20px;
    border-radius: 4px;
    font-weight: 500;
    margin-left: 15px;
    transition: var(--transition);
}

.nav-btn:hover {
    background-color: var(--dark);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--dark);
    padding: 5px;
    z-index: 1001;
}

/* --- Hero Showcase --- */
.hero-section {
    background: url('https://images.unsplash.com/photo-1531834685032-c34bf0d84377?auto=format&fit=crop&w=1920&q=80') no-repeat center center/cover;
    min-height: calc(100vh - 120px);
    position: relative;
    display: flex;
    align-items: center;
    color: var(--white);
    padding: 40px 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.65));
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 800px;
}

.hero-content h1 {
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 20px;
}

@media (min-width: 768px) {
    .hero-content h1 {
        font-size: 3.5rem;
        line-height: 1.2;
    }
}

.hero-content h1 span {
    color: var(--primary);
}

.hero-content p {
    font-size: 1rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

@media (min-width: 768px) {
    .hero-content p {
        font-size: 1.2rem;
    }
}

.hero-btns {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

@media (min-width: 480px) {
    .hero-btns {
        flex-direction: row;
    }
}

/* --- About Segment --- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

@media (min-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr 1fr;
        gap: 50px;
    }
}

.about-img {
    position: relative;
    max-width: 500px;
    margin: 0 auto;
    width: 100%;
}

@media (min-width: 992px) {
    .about-img {
        max-width: none;
    }
}

.about-img img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    display: block;
}

.experience-badge {
    position: absolute;
    bottom: -15px;
    right: -15px;
    background-color: var(--primary);
    color: var(--white);
    padding: 15px;
    border-radius: 6px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(211, 47, 47, 0.3);
}

@media (min-width: 768px) {
    .experience-badge {
        bottom: -20px;
        right: -20px;
        padding: 20px;
    }
}

.experience-badge h3 {
    font-size: 1.4rem;
}

@media (min-width: 768px) {
    .experience-badge h3 {
        font-size: 1.8rem;
    }
}

.about-text p {
    color: var(--gray);
    margin-bottom: 20px;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    margin-top: 25px;
}

@media (min-width: 480px) {
    .about-features {
        grid-template-columns: 1fr 1fr;
    }
}

.feat-item {
    font-weight: 500;
    display: flex;
    align-items: center;
}

.feat-item i {
    color: var(--primary);
    margin-right: 10px;
    font-size: 1.2rem;
}

/* --- Services Grid --- */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 576px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 30px;
    }
}

.service-card {
    background-color: var(--white);
    padding: 30px 20px;
    border-radius: 6px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.03);
    border-bottom: 3px solid transparent;
    transition: var(--transition);
}

@media (min-width: 768px) {
    .service-card {
        padding: 40px 30px;
    }
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: 0 12px 30px rgba(0,0,0,0.08);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

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

/* --- Projects Portfolio & Grid Display Elements --- */
.portfolio-filter {
    margin-bottom: 30px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 5px;
}

.filter-btn {
    background-color: transparent;
    border: 1px solid #E0E0E0;
    padding: 8px 18px;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

@media (min-width: 768px) {
    .filter-btn {
        padding: 8px 24px;
        font-size: 1rem;
    }
}

.filter-btn:hover, .filter-btn.active {
    background-color: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 576px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .portfolio-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.portfolio-item {
    position: relative;
    border-radius: 6px;
    overflow: hidden;
    height: 250px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    cursor: pointer;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(30, 30, 36, 0.9);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: var(--white);
    opacity: 0;
    transition: var(--transition);
    padding: 20px;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

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

.portfolio-overlay h4 {
    font-size: 1.25rem;
    margin-bottom: 5px;
    text-align: center;
}

.portfolio-overlay p {
    color: var(--primary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.view-project-link {
    font-size: 0.85rem;
    background-color: var(--primary);
    padding: 6px 16px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    transform: translateY(15px);
    transition: var(--transition);
}

.portfolio-item:hover .view-project-link {
    transform: translateY(0);
}

/* --- Premium Modal Specification Windows --- */
.project-modal-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
    padding: 10px;
}

.project-modal-wrapper.modal-visible {
    opacity: 1;
    pointer-events: auto;
}

.modal-card-body {
    background-color: var(--white);
    width: 100%;
    max-width: 900px;
    border-radius: 8px;
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(-30px);
    transition: transform 0.4s ease;
    box-shadow: 0 15px 50px rgba(0,0,0,0.3);
}

.project-modal-wrapper.modal-visible .modal-card-body {
    transform: translateY(0);
}

.close-modal-trigger {
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 2rem;
    color: var(--dark);
    cursor: pointer;
    z-index: 10;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.8);
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-modal-trigger:hover {
    color: var(--primary);
}

.modal-split-layout {
    display: grid;
    grid-template-columns: 1fr;
}

@media (min-width: 992px) {
    .modal-split-layout {
        grid-template-columns: 1.2fr 1fr;
    }
}

.modal-image-panel {
    background-color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 250px;
}

@media (min-width: 768px) {
    .modal-image-panel {
        height: 350px;
    }
}

@media (min-width: 992px) {
    .modal-image-panel {
        height: auto;
        min-height: 400px;
    }
}

.modal-image-panel img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-details-panel {
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

@media (min-width: 768px) {
    .modal-details-panel {
        padding: 40px;
    }
}

.modal-details-panel h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    font-weight: 700;
}

@media (min-width: 768px) {
    .modal-details-panel h3 {
        font-size: 1.8rem;
    }
}

.modal-details-panel hr {
    border: none;
    border-top: 1px solid #E0E0E0;
    margin-bottom: 20px;
}

.spec-data-table {
    width: 100%;
    border-collapse: collapse;
}

.spec-data-table td {
    padding: 8px 0;
    font-size: 0.9rem;
    border-bottom: 1px solid #F0F0F0;
    vertical-align: top;
}

@media (min-width: 768px) {
    .spec-data-table td {
        padding: 10px 0;
        font-size: 0.95rem;
    }
}

.spec-data-table td:first-child {
    color: var(--gray);
    width: 40%;
    padding-right: 10px;
}

.spec-data-table td i {
    color: var(--primary);
    margin-right: 8px;
    width: 16px;
}

.status-tag {
    background-color: #E8F5E9;
    color: #2E7D32;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    display: inline-block;
}

/* --- Why Choose Us UI --- */
.why-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

@media (min-width: 992px) {
    .why-grid {
        grid-template-columns: 1fr 1fr;
        gap: 50px;
    }
}

.counter-box {
    display: flex;
    margin-top: 30px;
    gap: 20px;
}

.counter-card {
    background-color: var(--white);
    padding: 15px 20px;
    border-radius: 6px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
    border-left: 4px solid var(--primary);
    flex: 1;
}

.counter-card h3 {
    font-size: 1.8rem;
    color: var(--primary);
}

.why-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.why-item {
    display: flex;
    background-color: var(--white);
    padding: 20px;
    border-radius: 6px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
}

.why-icon {
    font-size: 1.8rem;
    color: var(--primary);
    margin-right: 15px;
    margin-top: 3px;
    flex-shrink: 0;
}

.why-item h4 {
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.why-item p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* --- Dynamic Testimonial Slider System --- */
.slider-viewport {
    position: relative;
    max-width: 850px;
    margin: 40px auto 0 auto;
    overflow: hidden;
    padding: 15px 0;
}

.slider-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    width: 100%;
}

.testimonial-slide-card {
    flex: 0 0 100%;
    width: 100%;
    padding: 0 10px;
    box-sizing: border-box;
}

.testimonial-card-inner {
    background-color: var(--light);
    padding: 30px 20px;
    border-radius: 8px;
    text-align: left;
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
    position: relative;
}

@media (min-width: 768px) {
    .testimonial-card-inner {
        padding: 45px;
    }
}

.testimonial-card-inner::before {
    content: '\201C';
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 4rem;
    color: rgba(0,0,0,0.05);
    font-family: serif;
    line-height: 1;
}

@media (min-width: 768px) {
    .testimonial-card-inner::before {
        top: 15px;
        right: 35px;
        font-size: 5rem;
    }
}

.stars-container {
    color: #FFC107;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.testimonial-card-inner p {
    font-style: italic;
    color: #333;
    font-size: 1rem;
    margin-bottom: 25px;
    line-height: 1.7;
}

@media (min-width: 768px) {
    .testimonial-card-inner p {
        font-size: 1.05rem;
    }
}

.client-bio h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
}

.client-bio span {
    font-size: 0.85rem;
    color: var(--gray);
    font-weight: 500;
}

/* Slider Controls Navigation Arrows */
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--white);
    border: 1px solid #E0E0E0;
    color: var(--dark);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    z-index: 5;
    transition: var(--transition);
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.slider-arrow:hover {
    background-color: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.arrow-prev { left: 5px; }
.arrow-next { right: 5px; }

/* Interactive Review Submission Form Styling */
.review-submission-wrapper {
    max-width: 850px;
    margin: 40px auto 0 auto;
    border-top: 1px dashed #E0E0E0;
    padding-top: 20px;
}

.review-form-container {
    background-color: var(--white);
    border: 1px solid #EEF0F2;
    padding: 20px;
    border-radius: 8px;
    text-align: left;
    box-shadow: 0 5px 20px rgba(0,0,0,0.02);
}

@media (min-width: 768px) {
    .review-form-container {
        padding: 40px;
    }
}

.review-form-container h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.review-form-container p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 25px;
}

.form-row-split {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
}

@media (min-width: 768px) {
    .form-row-split {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
}

.star-rating-selector {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
    background-color: var(--light);
    padding: 12px 20px;
    border-radius: 4px;
}

.star-rating-selector span {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--dark);
}

.star-group-interactive i {
    font-size: 1.3rem;
    color: #D1D5DB;
    cursor: pointer;
    margin-right: 4px;
    transition: color 0.2s ease;
}

.star-group-interactive i.fas {
    color: #FFC107;
}

/* --- Interactive Contact Form Element --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

@media (min-width: 992px) {
    .contact-grid {
        grid-template-columns: 1fr 1fr;
        gap: 50px;
    }
}

.contact-info-list {
    margin-top: 20px;
}

.info-item {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.info-item i {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: rgba(211, 47, 47, 0.1);
    color: var(--primary);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.1rem;
    margin-right: 15px;
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .info-item i {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
        margin-right: 20px;
    }
}

.info-item h5 {
    font-size: 0.95rem;
    color: var(--gray);
}

.info-item p, .info-item a {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
    text-decoration: none;
    word-break: break-all;
}

@media (min-width: 768px) {
    .info-item p, .info-item a {
        font-size: 1.1rem;
    }
}

.form-container {
    background-color: var(--white);
    padding: 25px 20px;
    border-radius: 6px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

@media (min-width: 768px) {
    .form-container {
        padding: 40px;
    }
}

.form-container h3 {
    margin-bottom: 25px;
    font-size: 1.4rem;
}

.form-group {
    margin-bottom: 15px;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #E0E0E0;
    border-radius: 4px;
    background-color: #FAFAFA;
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--primary);
    background-color: var(--white);
}

/* --- Structural Footer Layout --- */
footer {
    background-color: var(--dark);
    color: #C1C2C5;
    padding: 40px 0 20px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding-bottom: 30px;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
        gap: 40px;
        padding-bottom: 40px;
    }
}

footer h3 {
    color: var(--white);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

footer h4 {
    color: var(--white);
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 8px;
    font-size: 1.1rem;
}

footer h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary);
}

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

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

.footer-links a {
    color: #C1C2C5;
    text-decoration: none;
    transition: var(--transition);
}

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

.social-icons a {
    display: inline-block;
    width: 35px;
    height: 35px;
    background-color: rgba(255,255,255,0.05);
    color: var(--white);
    text-align: center;
    line-height: 35px;
    border-radius: 4px;
    margin-right: 10px;
    margin-top: 15px;
    transition: var(--transition);
}

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

.footer-bottom {
    padding-top: 20px;
    font-size: 0.85rem;
}

/* --- Floating Components (WhatsApp Action) --- */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: #25D366;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    text-align: center;
    font-size: 24px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 999;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    transition: var(--transition);
}

@media (min-width: 768px) {
    .whatsapp-float {
        bottom: 30px;
        right: 30px;
        width: 60px;
        height: 60px;
        font-size: 30px;
    }
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background-color: #20BA5A;
}

/* --- Scroll Animation Transitions --- */
.reveal {
    position: relative;
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.8s ease;
}

.reveal.active {
    transform: translateY(0);
    opacity: 1;
}

.fade-in {
    opacity: 0;
    animation: fadeInAnimation 1s forwards ease-in-out;
}

.section-delay-1 { animation-delay: 0.3s; }
.section-delay-2 { animation-delay: 0.6s; }

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

/* --- Responsive Mobile Overrides --- */
@media (max-width: 768px) {
    .top-bar { 
        display: none; 
    }
    .menu-toggle { 
        display: block; 
    }
    .nav-menu {
        position: fixed;
        top: 70px; /* Adjust based on your header layout height */
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--white);
        flex-direction: column;
        justify-content: flex-start;
        padding: 30px 20px;
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
        transition: var(--transition);
        z-index: 1000;
        overflow-y: auto;
    }
    .nav-menu.active { 
        left: 0; 
    }
    .nav-link { 
        margin: 15px 0; 
        font-size: 1.1rem;
        width: 100%;
        text-align: center;
    }
    .nav-btn { 
        margin: 15px 0 0 0; 
        width: 100%;
        text-align: center;
    }
    .hero-section { 
        min-height: 500px;
    }
    .slider-arrow { 
        display: none; 
    }
    body.nav-open {
        overflow: hidden;
    }
}