/* Variáveis CSS para facilitar a manutenção */
:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --heading-color: #2c3e50;
    --subheading-color: #34495e;
    --link-color: #3498db;
    --link-hover-color: #2980b9;
    --caption-color: #555555;
    --border-radius: 8px;
    --card-bg: #f8f9fa;
    --header-bg: rgba(255, 255, 255, 0.95);
    --footer-bg: #2c3e50;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* Modo escuro baseado nas preferências do sistema */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-color: #1a1a1a;
        --text-color: #e0e0e0;
        --heading-color: #ecf0f1;
        --subheading-color: #bdc3c7;
        --link-color: #3498db;
        --link-hover-color: #5dade2;
        --caption-color: #95a5a6;
        --card-bg: #2d2d2d;
        --header-bg: rgba(26, 26, 26, 0.95);
        --footer-bg: #1a1a1a;
        --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    }
}

/* Reset e estilos base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    max-width: 100%;
    margin: 0 auto;
    line-height: 1.6;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition);
}

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

/* Header */
header {
    background-color: var(--header-bg);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--heading-color);
}

.logo i {
    margin-right: 10px;
    color: var(--link-color);
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

nav ul li a:hover {
    color: var(--link-color);
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--link-color);
    transition: var(--transition);
}

nav ul li a:hover::after {
    width: 100%;
}

.mobile-menu {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
}

/* Main content */
main {
    margin-top: 80px;
}

section {
    padding: 80px 0;
}

h1, h2, h3 {
    color: var(--heading-color);
    margin-bottom: 20px;
}

h1 {
    font-size: 2.5rem;
    text-align: left;
}

h2 {
    font-size: 2rem;
    margin-top: 0;
    display: flex;
    align-items: center;
}

h2 i {
    margin-right: 15px;
    color: var(--link-color);
}

h3 {
    font-size: 1.5rem;
    color: var(--subheading-color);
}

.section-description {
    font-size: 1.1rem;
    max-width: 700px;
    margin-bottom: 40px;
    color: var(--caption-color);
}

/* Hero section */
.hero {
    display: flex;
    align-items: center;
    min-height: 80vh;
    padding: 40px 0;
}

.hero-content {
    flex: 1;
    padding-right: 40px;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.hero-image {
    flex: 1;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.cta-buttons {
    display: flex;
    gap: 15px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn i {
    margin-left: 8px;
}

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

.btn.primary:hover {
    background-color: var(--link-hover-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

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

.btn.secondary:hover {
    background-color: var(--link-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn.outline {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

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

/* Package cards */
.package-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

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

.card h3 {
    margin-bottom: 15px;
}

.card p {
    margin-bottom: 20px;
    flex-grow: 1;
}

.card-link {
    color: var(--link-color);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

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

.card-link i {
    margin-left: 8px;
    transition: var(--transition);
}

.card-link:hover i {
    transform: translateX(5px);
}

/* Destinations */
.itineraries {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.destination-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.destination-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.image-container {
    position: relative;
    overflow: hidden;
}

.image-container img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition);
}

.destination-card:hover .image-container img {
    transform: scale(1.05);
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition);
}

.destination-card:hover .overlay {
    opacity: 1;
}

.destination-card figcaption {
    padding: 20px;
}

.destination-card h3 {
    margin-bottom: 15px;
}

.destination-info {
    display: flex;
    justify-content: space-between;
    color: var(--caption-color);
}

.destination-info span {
    display: flex;
    align-items: center;
}

.destination-info i {
    margin-right: 5px;
}

/* Features */
.features {
    background-color: var(--card-bg);
}

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

.feature {
    text-align: center;
    padding: 30px 20px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.feature:hover {
    transform: translateY(-5px);
}

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

.feature h3 {
    margin-bottom: 15px;
}

/* Newsletter */
.newsletter {
    background: linear-gradient(135deg, var(--link-color), #2ecc71);
    color: white;
    text-align: center;
}

.newsletter h2 {
    color: white;
}

.newsletter p {
    max-width: 600px;
    margin: 0 auto 30px;
}

.newsletter-form {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
    gap: 10px;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
}

.newsletter-form button {
    white-space: nowrap;
}

/* Footer */
footer {
    background-color: var(--footer-bg);
    color: white;
    padding: 60px 0 0;
}

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

.footer-section h3 {
    color: white;
    margin-bottom: 20px;
}

.footer-section ul {
    list-style: none;
}

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

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: white;
}

.contact-info li {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.contact-info i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

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

.social-links a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

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

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

/* Estilos adicionais para melhorar a acessibilidade */
*:focus {
    outline: 2px solid var(--link-color);
    outline-offset: 2px;
}

/* Melhora o contraste para melhor legibilidade */
@media (prefers-color-scheme: dark) {
    body {
        font-weight: 400;
    }

    h1, h2 {
        font-weight: 600;
    }
}

/* Responsividade */
@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        text-align: center;
    }

    .hero-content {
        padding-right: 0;
        margin-bottom: 40px;
    }

    .cta-buttons {
        justify-content: center;
    }

    .newsletter-form {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.7rem;
    }

    nav ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--header-bg);
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow);
    }

    nav ul.active {
        display: flex;
    }

    nav ul li {
        margin: 10px 0;
    }

    .mobile-menu {
        display: block;
    }

    section {
        padding: 60px 0;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        justify-content: center;
        margin-bottom: 10px;
    }

    .destination-info {
        flex-direction: column;
        gap: 10px;
    }
}