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

/* Heading Styles */
.h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

/* Font Awesome is loaded via CDN in the HTML */

/* Global Styles */
:root {
    --primary-color: #00b4d8;
    --secondary-color: #0096c7;
    --dark-color: #023e8a;
    --light-color: #caf0f8;
    --text-color: #333;
    --text-light: #666;
    --white: #ffffff;
    --gray: #f8f9fa;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

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

ul {
    list-style: none;
}

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

.btn {
    display: inline-block;
    background: var(--primary-color);
    color: var(--white);
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn:hover {
    background: var(--secondary-color);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

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

.section-header h2 {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.divider {
    height: 3px;
    width: 80px;
    background: var(--primary-color);
    margin: 0 auto;
    border-radius: 3px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.header.scrolled {
    padding: 10px 0;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: inline-block;
}

.logo img {
    height: 60px;
    width: auto;
    transition: var(--transition);
}

.logo:hover img {
    opacity: 0.9;
    transform: scale(1.05);
}

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

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    margin: 4px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), url('../img/dentista03.png') no-repeat center center/cover;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--white);
    padding-top: 80px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    animation: fadeInDown 1s ease;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease 0.3s;
    animation-fill-mode: both;
}

.hero-content .btn {
    animation: fadeInUp 1s ease 0.6s;
    animation-fill-mode: both;
}

/* About Section */
.about {
    padding: 80px 0;
    background-color: var(--gray);
    position: relative;
    overflow: hidden;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-top: 40px;
}

.about-text {
    padding: 20px 0;
}

.about-text p {
    margin-bottom: 25px;
    color: var(--text-light);
    line-height: 1.8;
    font-size: 1.05rem;
    position: relative;
    padding-left: 20px;
    border-left: 3px solid var(--primary-color);
}

.about-text p:last-child {
    margin-bottom: 0;
}

.about-image {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    transition: all 0.5s ease;
    height: 100%;
    min-height: 400px;
}

.about-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 148, 199, 0.2) 0%, rgba(0, 180, 216, 0.8) 100%);
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: 1;
}

.about-image:hover::before {
    opacity: 1;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

/* Responsive adjustments for About section */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image {
        min-height: 350px;
        order: -1;
    }
    
    .about-text {
        text-align: center;
    }
    
    .about-text p {
        padding-left: 0;
        border-left: none;
        border-bottom: 2px solid var(--primary-color);
        padding-bottom: 15px;
        display: inline-block;
    }
}

@media (max-width: 576px) {
    .about {
        padding: 60px 0;
    }
    
    .about-image {
        min-height: 280px;
    }
    
    .about-text p {
        font-size: 1rem;
        text-align: left;
    }
}

/* Services Section */
.services {
    padding: 100px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    border: 1px solid #eee;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.service-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    display: inline-block;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 0;
}

/* Why Choose Us */
.why-choose-us {
    padding: 80px 0;
    background: linear-gradient(rgba(0, 148, 199, 0.9), rgba(0, 148, 199, 0.9)), url('../img/imagem02.jpg') no-repeat center center/cover;
    background-attachment: fixed;
    color: var(--white);
    position: relative;
}

.why-choose-us .section-header h2 {
    color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
    /* Ensure the grid has an even number of columns */
    grid-auto-rows: 1fr;
}

.feature {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.feature i {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--white);
}

.feature p {
    font-size: 1.1rem;
    margin: 0;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background-color: #f9f9f9;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    margin-top: 50px;
}

.contact-info h2 {
    color: var(--dark-color);
    margin-bottom: 20px;
    font-size: 2rem;
}

.contact-info p {
    color: var(--text-light);
    margin-bottom: 30px;
    max-width: 500px;
}

.contact-details {
    margin-top: 40px;
}

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

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 20px;
    margin-top: 5px;
}

.contact-item h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.contact-item p, .contact-item a {
    color: var(--text-light);
    margin: 0;
}

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

.map-link {
    display: inline-block;
    margin-top: 10px;
    color: var(--primary-color) !important;
    font-weight: 500;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.1);
}

.contact-form h3 {
    font-size: 1.8rem;
    margin-bottom: 25px;
    color: var(--dark-color);
    text-align: center;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 180, 216, 0.2);
}

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

/* Footer */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 80px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo a {
    display: inline-block;
}

.footer-logo img {
    height: 60px;
    margin-bottom: 20px;
    filter: brightness(0) invert(1);
    -webkit-filter: brightness(0) invert(1);
    transition: var(--transition);
}

.footer-logo a:hover img {
    opacity: 0.9;
    transform: scale(1.05);
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 15px;
    line-height: 1.8;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.3rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after,
.footer-contact h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 2px;
    background: var(--primary-color);
}

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

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

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

.footer-contact p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.footer-contact i {
    margin-right: 10px;
    color: var(--primary-color);
    width: 20px;
    text-align: center;
}

.footer-bottom {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.developer-credits {
    font-size: 0.8rem;
    opacity: 0.8;
    margin-top: 10px;
}

.developer-credits a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.developer-credits a:hover {
    color: #fff;
    text-decoration: underline;
}

.developer-credits .fa-heart {
    color: #ff6b6b;
    margin: 0 3px;
    animation: heartbeat 1.5s infinite;
}

@keyframes heartbeat {
    0% { transform: scale(1); }
    14% { transform: scale(1.3); }
    28% { transform: scale(1); }
    42% { transform: scale(1.3); }
    70% { transform: scale(1); }
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 3px #999;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    background-color: #128C7E;
    color: #FFF;
    transform: scale(1.1);
    animation: none;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 110px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.fas,
.fa-solid,
.fab,
.fa-brands {
    font-family: 'Font Awesome 6 Free', 'Font Awesome 6 Brands';
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
    display: inline-block;
    font-style: normal;
    font-variant: normal;
    line-height: 1;
    text-rendering: auto;
}

.fas,
.fa-solid {
    font-weight: 900;
}

.fab,
.fa-brands {
    font-family: 'Font Awesome 6 Brands';
    font-weight: 400;
}

/* Show content by default */
body {
    visibility: visible;
}

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

.back-to-top:hover {
    background: var(--secondary-color);
    color: var(--white);
    transform: translateY(-3px);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Styles */
@media (max-width: 992px) {
    .about-content,
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .hero-content h1 {
        font-size: 2.8rem;
    }
}

@media (max-width: 1199px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .btn {
        padding: 10px 25px;
        font-size: 0.9rem;
    }
    
    .contact-form {
        padding: 30px 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links h4::after,
    .footer-contact h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .footer-contact p {
        justify-content: center;
    }
}