/* 
 * Main Stylesheet for Positive Impact Website
 * Author: Manus AI
 * Version: 1.0
 */

/* ===== VARIABLES ===== */


:root {
    /* Colors */
    --primary-color: #0e2a4d;
    --secondary-color: #ff3a3a;
    --accent-color: #3a86ff;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-color: #6c757d;
    --light-gray-color: #e9ecef;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    
    /* Typography */
    --heading-font: 'Roboto', sans-serif;
    --body-font: 'Open Sans', sans-serif;
    
    /* Spacing */
    --section-padding: 80px 0;
    --container-padding: 0 15px;
    
    /* Borders */
    --border-radius: 5px;
    --border-radius-lg: 10px;
    
    /* Shadows */
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --box-shadow-hover: 0 10px 25px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--body-font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #fff;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 20px;
    color: var(--primary-color);
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: 20px;
}

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

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

ul, ol {
    margin-bottom: 20px;
    padding-left: 20px;
}

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

/* ===== UTILITY CLASSES ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

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

.section-divider {
    width: 80px;
    height: 4px;
    background-color: var(--secondary-color);
    margin: 20px auto 30px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

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

.btn-primary:hover {
    background-color: #e62e2e;
    color: white;
}

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

.btn-secondary:hover {
    background-color: #0a1f3a;
    color: white;
}

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

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

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

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

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

.mb-0 {
    margin-bottom: 0;
}

.mb-1 {
    margin-bottom: 10px;
}

.mb-2 {
    margin-bottom: 20px;
}

.mb-3 {
    margin-bottom: 30px;
}

.mb-4 {
    margin-bottom: 40px;
}

.mb-5 {
    margin-bottom: 50px;
}

/* ===== HEADER & NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
}

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

.logo img {
    height: 50px;
}

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

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    margin: 0 15px;
}

.nav-menu a {
    font-weight: 600;
    padding: 10px 0;
    position: relative;
}

.nav-menu a:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    transition: var(--transition);
}

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

.language-switcher {
    display: flex;
    align-items: center;
    margin-left: 20px;
}

.language-switcher a {
    display: inline-block;
    padding: 5px 10px;
    font-weight: 600;
    border-radius: var(--border-radius);
    margin-left: 5px;
}

.language-switcher a.active {
    background-color: var(--primary-color);
    color: white;
}

.mobile-menu-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero {
    background-color: var(--primary-color);
    background-image: linear-gradient(rgba(14, 42, 77, 0.9), rgba(14, 42, 77, 0.9)), url('../images/backgrounds/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 180px 0 100px;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    color: white;
    margin-bottom: 20px;
    font-size: 3.5rem;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.service-hero {
    padding: 150px 0 80px;
}

/* ===== ABOUT SECTION ===== */
.about {
    padding: var(--section-padding);
    background-color: white;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.about-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.about-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.about-card {
    background-color: var(--light-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

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

.core-values {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 20px;
}

.value-item {
    text-align: center;
    width: 150px;
}

.value-icon {
    width: 70px;
    height: 70px;
    background-color: var(--light-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 24px;
    color: var(--primary-color);
    box-shadow: var(--box-shadow);
}

/* ===== TIMELINE SECTION ===== */
.timeline {
    padding: var(--section-padding);
    background-color: var(--light-color);
}

.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline-container::after {
    content: '';
    position: absolute;
    width: 4px;
    background-color: var(--primary-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -2px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    box-sizing: border-box;
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: white;
    border: 4px solid var(--secondary-color);
    border-radius: 50%;
    top: 15px;
    z-index: 1;
}

.left {
    left: 0;
}

.right {
    left: 50%;
}

.left::after {
    right: -10px;
}

.right::after {
    left: -10px;
}

.timeline-content {
    padding: 20px 30px;
    background-color: white;
    position: relative;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.left .timeline-content::before {
    content: '';
    position: absolute;
    top: 15px;
    right: -15px;
    width: 0;
    height: 0;
    border-top: 15px solid transparent;
    border-bottom: 15px solid transparent;
    border-left: 15px solid white;
}

.right .timeline-content::before {
    content: '';
    position: absolute;
    top: 15px;
    left: -15px;
    width: 0;
    height: 0;
    border-top: 15px solid transparent;
    border-bottom: 15px solid transparent;
    border-right: 15px solid white;
}

/* ===== SERVICES SECTION ===== */
.services {
    padding: var(--section-padding);
    background-color: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
    transition: var(--transition);
    border: 1px solid var(--light-gray-color);
    height: 100%;
    display: flex;
    flex-direction: column;
}

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

.service-card.featured {
    border: 2px solid var(--secondary-color);
    position: relative;
    z-index: 1;
    transform: scale(1.03);
}

.service-card.featured:hover {
    transform: scale(1.03) translateY(-5px);
}

.service-icon {
    width: 80px;
    height: 80px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 30px;
}

.service-card h3 {
    text-align: center;
    margin-bottom: 15px;
}

.service-card p {
    text-align: center;
    margin-bottom: 20px;
}

.service-features {
    list-style: none;
    padding: 0;
    margin: 0 0 20px;
}

.service-features li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 10px;
}

.service-features li:before {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    color: var(--secondary-color);
    position: absolute;
    left: 0;
    top: 2px;
}

.service-card .btn {
    margin-top: auto;
    align-self: center;
}

/* ===== SERVICE CATEGORIES ===== */
.service-categories {
    padding: var(--section-padding);
    background-color: var(--light-color);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.category-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
    transition: var(--transition);
    height: 100%;
}

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

.category-icon {
    width: 70px;
    height: 70px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
}

.category-card h3 {
    text-align: center;
    margin-bottom: 15px;
}

.category-card p {
    text-align: center;
    margin-bottom: 20px;
}

.category-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.category-features li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 10px;
}

.category-features li:before {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    color: var(--secondary-color);
    position: absolute;
    left: 0;
    top: 2px;
}

/* ===== STATISTICS SECTION ===== */
.statistics {
    padding: var(--section-padding);
    background-color: var(--primary-color);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    text-align: center;
}

.stat-item {
    padding: 20px;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: white;
}

.stat-label {
    font-size: 1.25rem;
    font-weight: 600;
}

/* ===== TEAM SECTION ===== */
.team-preview {
    padding: var(--section-padding);
    background-color: white;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.team-member {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: var(--transition);
}

.team-member:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.member-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
}

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

.team-member:hover .member-image img {
    transform: scale(1.05);
}

.member-info {
    padding: 20px;
    text-align: center;
}

.member-title {
    color: var(--secondary-color);
    font-weight: 600;
}

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

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
    padding: var(--section-padding);
    background-color: var(--light-color);
}

.testimonial-slider {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.testimonial-slide {
    display: none;
}

.testimonial-slide:first-child {
    display: block;
}

.testimonial-content {
    background-color: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    position: relative;
}

.quote-icon {
    font-size: 30px;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.client-info {
    display: flex;
    align-items: center;
    margin-top: 20px;
}

.client-info img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 15px;
}

.client-info h4 {
    margin-bottom: 5px;
}

.client-info p {
    margin-bottom: 0;
    color: var(--gray-color);
}

.testimonial-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 30px;
}

.prev-btn, .next-btn {
    background-color: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.prev-btn:hover, .next-btn:hover {
    background-color: var(--secondary-color);
}

.testimonial-dots {
    display: flex;
    margin: 0 20px;
}

.dot {
    width: 12px;
    height: 12px;
    background-color: var(--light-gray-color);
    border-radius: 50%;
    margin: 0 5px;
    cursor: pointer;
    transition: var(--transition);
}

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

/* ===== BENEFITS SECTION ===== */
.benefits-section {
    padding: var(--section-padding);
    background-color: white;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.benefit-item {
    text-align: center;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    background-color: white;
}

.benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.benefit-icon {
    width: 70px;
    height: 70px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
}

/* ===== WHY CHOOSE US SECTION ===== */
.why-choose-us {
    padding: var(--section-padding);
    background-color: var(--light-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 20px;
    font-size: 24px;
    flex-shrink: 0;
}

.feature-content {
    flex-grow: 1;
}

.feature-content h3 {
    margin-bottom: 10px;
}

.feature-content p {
    margin-bottom: 0;
}

/* ===== CASE STUDIES SECTION ===== */
.case-studies {
    padding: var(--section-padding);
    background-color: white;
}

.case-studies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.case-study {
    background-color: var(--light-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.case-study:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.case-study-content {
    padding: 30px;
}

.case-study h3 {
    margin-bottom: 5px;
}

.client {
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 20px;
    display: block;
}

.challenge, .solution, .results {
    margin-bottom: 20px;
}

.challenge h4, .solution h4, .results h4 {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-bottom: 10px;
}

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

.results li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 10px;
}

.results li:before {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    color: var(--secondary-color);
    position: absolute;
    left: 0;
    top: 2px;
}

/* ===== SERVICE CALCULATOR ===== */
.service-calculator {
    padding: var(--section-padding);
    background-color: var(--light-color);
}

.calculator-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.calculator-form {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--light-gray-color);
    border-radius: var(--border-radius);
    font-family: var(--body-font);
    font-size: 16px;
}

.calculator-results {
    background-color: var(--primary-color);
    color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.calculator-results h3 {
    color: white;
    margin-bottom: 25px;
    text-align: center;
}

.result-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.result-item.total {
    font-weight: 700;
    font-size: 1.2rem;
    border-bottom: none;
    margin-top: 20px;
}

.disclaimer {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 20px;
    text-align: center;
}

/* ===== FAQ SECTION ===== */
.faq-section {
    padding: var(--section-padding);
    background-color: white;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 20px;
    border: 1px solid var(--light-gray-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    background-color: var(--light-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question h3 {
    margin-bottom: 0;
    font-size: 1.2rem;
    flex-grow: 1;
}

.faq-toggle {
    flex-shrink: 0;
    margin-left: 15px;
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.active .faq-answer {
    padding: 20px;
    max-height: 500px;
}

.faq-item.active .faq-toggle i:before {
    content: '\f068';
}

/* ===== CALL TO ACTION ===== */
.cta {
    padding: var(--section-padding);
    background-color: var(--primary-color);
    color: white;
    text-align: center;
}

.cta h2 {
    color: white;
    margin-bottom: 20px;
}

.cta p {
    max-width: 700px;
    margin: 0 auto 30px;
    font-size: 1.2rem;
}

/* ===== MODAL ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    overflow-y: auto;
}

.modal-content {
    background-color: white;
    max-width: 600px;
    margin: 50px auto;
    padding: 40px;
    border-radius: var(--border-radius);
    position: relative;
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 28px;
    cursor: pointer;
}

.modal h2 {
    margin-bottom: 30px;
    text-align: center;
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--primary-color);
    color: white;
    padding: 80px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

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

.footer-logo p {
    opacity: 0.8;
}

.social-icons {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: var(--transition);
}

.social-icons a:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
}

.footer h3 {
    color: white;
    margin-bottom: 25px;
    font-size: 1.3rem;
}

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

.footer-links li, .footer-services li {
    margin-bottom: 12px;
}

.footer-links a, .footer-services a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

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

.footer-contact p {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.footer-contact i {
    margin-right: 15px;
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    margin-bottom: 0;
    opacity: 0.7;
}

/* ===== LANGUAGE SELECTION PAGE ===== */
.language-selection {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    text-align: center;
    padding: 20px;
}

.language-selection .logo {
    margin-bottom: 40px;
}

.language-selection h1 {
    margin-bottom: 40px;
}

.language-buttons {
    display: flex;
    gap: 20px;
}

.language-buttons .btn {
    min-width: 150px;
}

/* ===== SERVICE OVERVIEW ===== */
.service-overview {
    padding: var(--section-padding);
    background-color: white;
}

.overview-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    align-items: center;
}

.overview-text {
    font-size: 1.1rem;
}

.overview-image {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.overview-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* ===== RESPONSIVE STYLES ===== */
@media (max-width: 1200px) {
    h1 {
        font-size: 3rem;
    }
    
    h2 {
        font-size: 2.2rem;
    }
}

@media (max-width: 992px) {
    :root {
        --section-padding: 60px 0;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .hero {
        padding: 150px 0 80px;
    }
    
    .timeline-container::after {
        left: 31px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 25px;
    }
    
    .right {
        left: 0;
    }
    
    .left::after, .right::after {
        left: 15px;
    }
    
    .left .timeline-content::before {
        content: none;
    }
    
    .right .timeline-content::before {
        left: -15px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 50px 0;
    }
    
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        transform: translateY(-150%);
        transition: var(--transition);
        opacity: 0;
        visibility: hidden;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu li {
        margin: 10px 0;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .overview-content {
        grid-template-columns: 1fr;
    }
    
    .calculator-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.6rem;
    }
    
    .section-header {
        margin-bottom: 30px;
    }
    
    .feature-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .feature-icon {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .client-info {
        flex-direction: column;
        text-align: center;
    }
    
    .client-info img {
        margin-right: 0;
        margin-bottom: 10px;
    }
    
    .modal-content {
        padding: 20px;
        margin: 20px;
        width: auto;
    }
}