/* Base Styles */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #e74c3c;
    --accent-color: #3498db;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --text-color: #333;
    --text-light: #7f8c8d;
    --white: #fff;
    --black: #000;
    --gray: #95a5a6;
    --light-gray: #bdc3c7;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --error-color: #e74c3c;
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
    --transition: all 0.3s ease;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.15);
    --border-radius: 8px;
    --container-width: 1200px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

p {
    margin-bottom: 1.25rem;
}

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

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

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

ul {
    list-style: none;
}

button {
    cursor: pointer;
    font-family: inherit;
}

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-subtitle {
    display: inline-block;
    color: var(--secondary-color);
    font-weight: 500;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
}

.section-title {
    font-size: 2.5rem;
    position: relative;
    display: inline-block;
    margin-bottom: 1.5rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--secondary-color);
    border-radius: 2px;
}

.section-description {
    max-width: 700px;
    margin: 0 auto;
    color: var(--text-light);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: #c0392b;
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

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

.btn-secondary:hover {
    background-color: #1a252f;
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

.btn-outline:hover {
    background-color: var(--secondary-color);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

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

.btn-light:hover {
    background-color: #d5dbdb;
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.btn-large {
    padding: 1rem 2.25rem;
    font-size: 1.1rem;
}

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

/* Header Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--white);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.header.scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo-container img {
    height: 50px;
    width: auto;
}

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

.nav-list {
    display: flex;
}

.nav-link {
    padding: 0.5rem 1rem;
    font-weight: 500;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60%;
    height: 2px;
    background-color: var(--secondary-color);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: translateX(-50%) scaleX(1);
}

.nav-link.active {
    color: var(--secondary-color);
}

.header-cta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.phone-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.phone-link:hover {
    color: var(--secondary-color);
}

.icon-phone {
    display: inline-block;
    width: 20px;
    height: 20px;
    background-image: url('images/phone-icon.svg');
    background-size: contain;
    background-repeat: no-repeat;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    width: 30px;
    height: 30px;
    position: relative;
    z-index: 1001;
}

.mobile-menu-toggle .bar {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    margin: 5px 0;
    transition: var(--transition);
}

.mobile-menu-toggle[aria-expanded="true"] .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .bar:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Hero Section */
.hero {
    position: relative;
    padding-top: 120px;
    padding-bottom: 80px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    min-height: calc(100vh - 120px);
}

.hero-content {
    flex: 1;
    padding-right: 2rem;
}

.hero-image {
    flex: 1;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    background-color: var(--secondary-color);
    color: var(--white);
    border-radius: 50%;
    font-weight: bold;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.hero-wave svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 120px;
}

.hero-wave path {
    fill: var(--white);
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
}

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

.service-icon {
    margin-bottom: 1.5rem;
}

.service-icon img {
    margin: 0 auto;
    width: 60px;
    height: 60px;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-weight: 600;
    color: var(--secondary-color);
}

.service-link:hover {
    gap: 0.5rem;
}

/* Why Choose Us Section */
.why-choose-us {
    background-color: #f8f9fa;
}

.why-choose-us .container {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.why-choose-content {
    flex: 1;
}

.why-choose-image {
    flex: 1;
    position: relative;
}

.why-choose-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.advantages-list {
    margin-top: 2rem;
}

.advantage-item {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.advantage-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--secondary-color);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.advantage-text h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

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

/* Pricing Section */
.pricing-section {
    background-color: var(--white);
}

.pricing-tabs {
    margin-top: 2rem;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.tab-button {
    padding: 0.75rem 1.75rem;
    background-color: transparent;
    border: 2px solid var(--light-gray);
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}

.tab-button:hover {
    border-color: var(--secondary-color);
    color: var(--secondary-color);
}

.tab-button.active {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: var(--white);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.pricing-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    text-align: center;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.pricing-card.featured {
    border: 2px solid var(--secondary-color);
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 0.25rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-light);
}

.features-list {
    margin-bottom: 2rem;
    text-align: left;
}

.features-list li {
    padding: 0.5rem 0;
    border-bottom: 1px dashed #eee;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.features-list li::before {
    content: '✓';
    color: var(--secondary-color);
    font-weight: bold;
}

.pricing-note {
    margin-top: 2rem;
    text-align: center;
    font-style: italic;
    color: var(--text-light);
}

/* Process Section */
.process-steps {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    counter-reset: step-counter;
}

.process-step {
    flex: 1;
    min-width: 200px;
    max-width: 220px;
    position: relative;
    padding: 2rem 1.5rem;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.process-step:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--secondary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    position: relative;
}

.step-number::before {
    counter-increment: step-counter;
    content: counter(step-counter);
}

.process-step h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.process-step p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Testimonials Section */
.testimonials-section {
    background-color: #f8f9fa;
}

.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

.testimonial-rating {
    color: var(--warning-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.testimonial-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    color: var(--text-light);
    position: relative;
}

.testimonial-text::before,
.testimonial-text::after {
    content: '"';
    font-size: 2rem;
    color: var(--light-gray);
    opacity: 0.5;
    line-height: 0;
}

.testimonial-text::before {
    vertical-align: top;
    margin-right: 0.25rem;
}

.testimonial-text::after {
    vertical-align: bottom;
    margin-left: 0.25rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
}

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

.author-info h4 {
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
}

.author-info span {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* FAQ Section */
.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    text-align: left;
    background-color: var(--white);
    border: none;
    font-weight: 600;
    font-size: 1.1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: #f8f9fa;
}

.faq-question[aria-expanded="true"] {
    background-color: var(--secondary-color);
    color: var(--white);
}

.accordion-icon {
    display: inline-block;
    width: 20px;
    height: 20px;
    position: relative;
}

.accordion-icon::before,
.accordion-icon::after {
    content: '';
    position: absolute;
    background-color: currentColor;
    transition: var(--transition);
}

.accordion-icon::before {
    width: 100%;
    height: 2px;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
}

.accordion-icon::after {
    width: 2px;
    height: 100%;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
}

.faq-question[aria-expanded="true"] .accordion-icon::after {
    transform: translateX(-50%) rotate(90deg);
    opacity: 0;
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    background-color: var(--white);
}

.faq-answer p {
    padding: 1rem 0;
}

.faq-question[aria-expanded="true"] + .faq-answer {
    max-height: 500px;
    padding: 0 1.5rem 1.5rem;
}

.faq-cta {
    text-align: center;
    margin-top: 3rem;
}

.faq-cta p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

/* About Section */
.about-section .container {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.about-image {
    flex: 1;
    position: relative;
}

.about-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.about-content {
    flex: 1;
}

.about-stats {
    display: flex;
    gap: 2rem;
    margin: 2rem 0;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-item {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: var(--border-radius);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.feature-item h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.feature-item p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* CTA Section */
.cta-section {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 4rem 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('images/cta-bg-pattern.png');
    opacity: 0.05;
    z-index: 1;
}

.cta-section .container {
    position: relative;
    z-index: 2;
}

.cta-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.cta-text {
    max-width: 700px;
    margin: 0 auto 2rem;
    font-size: 1.1rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-item {
    display: flex;
    gap: 1.5rem;
}

.info-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--secondary-color);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.info-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.info-content p,
.info-content address {
    color: var(--text-light);
    font-style: normal;
}

.info-content a {
    color: var(--text-light);
    transition: var(--transition);
}

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

.contact-form {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.2);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-row {
    display: flex;
    gap: 1.5rem;
}

.form-row .form-group {
    flex: 1;
}

/* Service Area Section */
.area-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.area-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.area-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--secondary-color);
}

.area-list li {
    padding: 0.5rem 0;
    border-bottom: 1px dashed #eee;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.area-list li::before {
    content: '•';
    color: var(--secondary-color);
}

.area-note {
    text-align: center;
    margin-top: 2rem;
    font-style: italic;
    color: var(--text-light);
}

/* Footer */
.footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: 5rem 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h3 {
    color: var(--white);
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.75rem;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--secondary-color);
}

.footer-about p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

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

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

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

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

.footer-contact ul li {
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact ul li span {
    margin-top: 3px;
}

.footer-bottom {
    padding: 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    z-index: 999;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 5rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--secondary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    cursor: pointer;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: #c0392b;
    transform: translateY(-5px);
}

/* Animations */
.animate-fade-in {
    animation: fadeIn 1s ease-in-out;
}

.animate-slide-in {
    animation: slideIn 1s ease-in-out;
}

.animate-zoom {
    animation: zoomIn 1s ease-in-out;
}

.animate-card {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.5s ease-in-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { 
        opacity: 0;
        transform: translateX(50px);
    }
    to { 
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes zoomIn {
    from { 
        opacity: 0;
        transform: scale(0.9);
    }
    to { 
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fadeInUp {
    from { 
        opacity: 0;
        transform: translateY(20px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--secondary-color);
    color: white;
    padding: 8px;
    z-index: 100;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        padding-right: 0;
        margin-bottom: 3rem;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .hero-cta {
        justify-content: center;
    }
    
    .why-choose-us .container,
    .about-section .container {
        flex-direction: column;
    }
    
    .why-choose-image,
    .about-image {
        order: -1;
        margin-bottom: 3rem;
    }
}

@media (max-width: 768px) {
    .header .container {
        height: 70px;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-list {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 350px;
        height: 100vh;
        background-color: var(--white);
        flex-direction: column;
        padding: 5rem 2rem;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
        z-index: 1000;
    }
    
    .nav-list.active {
        right: 0;
    }
    
    .nav-link {
        padding: 1rem 0;
        font-size: 1.1rem;
    }
    
    .header-cta {
        display: none;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .section {
        padding: 3rem 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
        gap: 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .process-steps {
        flex-direction: column;
        align-items: center;
    }
    
    .process-step {
        max-width: 100%;
    }
    
    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
        bottom: 1rem;
        right: 1rem;
    }
    
    .back-to-top {
        width: 40px;
        height: 40px;
        font-size: 1rem;
        bottom: 4rem;
        right: 1rem;
    }
}