/* Base Styles & Reset */
:root {
    --color-primary: #064e3b; /* Verde escuro */
    --color-secondary: #10b981; /* Verde */
    --color-accent: #f59e0b; /* Laranja */
    --color-dark: #1f2937; /* Cinza escuro */
    --color-text: #4b5563; /* Cinza médio */
    --color-light: #f9fafb; /* Cinza claro */
    --color-white: #ffffff;

    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Inter', sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    --border-radius: 0.5rem;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-light);
    -webkit-font-smoothing: antialiased;
    scroll-behavior: smooth;
}

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

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

a:hover {
    text-decoration: underline;
}

ul {
    list-style: none;
}

/* A11y utility: esconder texto visualmente mantendo leitura por leitores de ecrã */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Utility Classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
}

.section.alt {
    background-color: var(--color-white);
}

.section-title {
    font-family: var(--font-heading);
    font-size: var(--spacing-xl);
    color: var(--color-dark);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.lede {
    font-size: 1.15rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    color: var(--color-text);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-family: var(--font-heading);
    font-weight: 600;
    text-align: center;
    transition: background-color 0.3s ease, transform 0.2s ease;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: #043927; /* Darker verde */
    transform: translateY(-2px);
    text-decoration: none;
}

.btn-secondary {
    background-color: var(--color-light);
    color: var(--color-dark);
    border: 1px solid #d1d5db;
}

.btn-secondary:hover {
    background-color: #e5e7eb;
    transform: translateY(-2px);
    text-decoration: none;
}

.btn-whatsapp {
    /* Unifica cor do botão WhatsApp com a cor primária (verde escuro) */
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-whatsapp:hover {
    background-color: #043927;
    transform: translateY(-2px);
    text-decoration: none;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* Icon button for language globe */
.btn-icon.lang-btn {
    display: inline-flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    height: 38px;
    min-width: 38px;
    padding: 0 10px;
    gap: 6px;
    border-radius: 999px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.35);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-weight: 700;
    white-space: nowrap;
}
.btn-icon.lang-btn i {
    font-size: 18px;
    line-height: 1;
    display: inline-block;
}
.btn-icon.lang-btn .lang-code {
    font-size: 0.85rem;
    line-height: 1;
    letter-spacing: 0.3px;
    display: inline-block;
}
.btn-icon.lang-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-2px);
    text-decoration: none;
}

/* Header language button variant: solid white for readability */
.site-header .header-actions .header-lang {
    background: rgba(255, 255, 255, 0.95);
    color: #111 !important;
    border-color: transparent;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}
.site-header .header-actions .header-lang:hover {
    background: rgba(255, 255, 255, 1);
}
.site-header .header-actions .header-lang i { color: #111; }

/* Header */
.site-header {
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.site-header .logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-white);
    text-decoration: none;
}

.site-header .nav {
    display: none; /* Hidden by default on mobile */
    flex-grow: 1;
    text-align: center;
}

.site-header .nav.is-active {
    display: flex;
    flex-direction: column;
    width: 100%;
    margin-top: var(--spacing-md);
}

.site-header .nav a {
    color: var(--color-white);
    margin: var(--spacing-xs) var(--spacing-md);
    font-weight: 600;
    text-decoration: none;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
}

.site-header .nav a:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center; /* vertically center WhatsApp, Book, and language pill */
}

/* Mobile tweaks: make room so globe stays horizontal */
@media (max-width: 520px) {
    .header-actions { gap: 0.35rem; }
    .header-actions .btn-whatsapp,
    .header-actions .btn-book-now {
        padding: 0.45rem 0.65rem;
        font-size: 0.85rem;
    }
    .site-header .header-actions .header-lang {
        height: 32px;
        padding: 0 8px;
        gap: 4px;
    }
    .btn-icon.lang-btn i { font-size: 14px; }
    .btn-icon.lang-btn .lang-code { font-size: 0.78rem; }
}

/* Language switcher in header */
.lang-switch {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-left: var(--spacing-xs);
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 999px;
    padding: 2px 6px;
}
.lang-switch .divider {
    color: rgba(255, 255, 255, 0.6);
}
.site-header .lang-switch a {
    color: var(--color-white);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    opacity: 0.85;
    padding: 2px 6px;
    border-radius: 999px;
}
.site-header .lang-switch a:hover {
    opacity: 1;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.12);
}
.site-header .lang-switch a[aria-current="page"] {
    opacity: 1;
    background: rgba(255, 255, 255, 0.22);
}

/* Language switch button in hero */
.hero { position: relative; }
.hero .lang-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255, 255, 255, 0.95);
    color: #222;
    padding: 6px 10px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.08);
    z-index: 200; /* above sticky header (z-index: 100) */
    font-family: inherit;
}
.hero .lang-btn i { font-size: 0.95em; }

@media (max-width: 520px) {
    .hero .lang-btn { top: 8px; right: 8px; padding: 5px 8px; font-size: 0.9rem; }
}

.nav-toggle {
    display: flex; /* Always visible on mobile for menu toggle */
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 110;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color-white);
    border-radius: 10px;
    transition: all 0.3s linear;
    position: relative;
    transform-origin: 1px;
}

.nav-toggle span:first-child {
    transform: translateY(-4px);
}
.nav-toggle span:last-child {
    transform: translateY(4px);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:first-child {
    transform: rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:last-child {
    transform: rotate(-45deg);
}

/* Hero Section */
.hero {
    position: relative;
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: var(--spacing-xxl) 0;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Usar caminho relativo para compatibilidade local: */
    background-image: url('images/low/header.png'); /* Adicione uma imagem de fundo aqui */
    background-size: cover;
    background-position: center;
    /* Ajusta visibilidade: aumenta ligeiramente a opacidade e aplica um filtro para melhor contraste */
    opacity: 0.65;
    filter: brightness(0.65) saturate(0.9);
    z-index: 1;
}

.hero-wrap {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-xl);
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: var(--spacing-xxl);
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

.hero .subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.hero-ctas {
    margin-bottom: var(--spacing-xl);
}

.hero-ctas .btn {
    font-size: 1.1rem;
    padding: 1rem 2rem;
}

.stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
}

.stats li {
    text-align: center;
    font-size: 1.1rem;
}

.stats strong {
    display: block;
    font-size: 2rem;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-accent);
}

.stats span {
    display: block;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.8;
}

/* Booking Panel */
.booking-panel {
    background-color: rgba(255, 255, 255, 0.7); /* 80% de opacidade */
    color: var(--color-dark);
    /* Menos padding para reduzir altura total do painel */
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    width: 100%;
    max-width: 400px;
    margin-top: var(--spacing-xl); /* Add space on mobile */
}

.booking-panel h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    /* Menor espaçamento abaixo do título */
    margin-bottom: var(--spacing-md);
    text-align: center;
    color: var(--color-dark);
}

.booking-form .form-group {
    /* Reduz o espaçamento vertical entre campos do formulário */
    margin-bottom: var(--spacing-sm);
}

.booking-form label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
}

.booking-form input[type="text"],
.booking-form input[type="email"],
.booking-form input[type="tel"],
.booking-form input[type="date"],
.booking-form select {
    width: 100%;
    /* Menos padding para campos mais compactos */
    padding: 0.5rem;
    border: 1px solid #d1d5db;
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text); /* Unificar cor do texto nos campos */
    background-color: var(--color-white); /* Forçar fundo branco em mobile */
}

.booking-form input:focus,
.booking-form select:focus {
    outline: none;
    border-color: var(--color-primary);
    /* Ajusta o tom do glow de foco para verde, alinhado com a cor primária */
    box-shadow: 0 0 0 3px rgba(6, 78, 59, 0.15);
}

/* Cor do placeholder para inputs do formulário de reserva */
.booking-form input::placeholder {
    color: #9ca3af; /* cinza mais claro para placeholder */
}

/* Placeholder visual para selects (quando opção placeholder está selecionada) */
.booking-form select:required:invalid {
    color: #9ca3af; /* cinza claro enquanto não escolhido */
    background-color: var(--color-white); /* manter fundo branco mesmo no estado inválido */
}

/* Quando válido (valor escolhido), usa a cor normal */
.booking-form select:valid {
    color: var(--color-text);
}

/* A opção placeholder no dropdown também aparece cinzenta */
.booking-form select option[value=""] {
    color: #9ca3af;
}

.booking-form input.is-invalid,
.booking-form select.is-invalid {
    border-color: red;
}

.panel-actions {
    display: flex;
    flex-direction: column;
    /* Espaçamento menor entre ações (botões) */
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.panel-actions .btn {
    width: 100%;
}

.form-message {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: 600;
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.feature-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
}

.feature-icon {
    font-size: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    line-height: 1;
}

.feature-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

/* Gallery Section */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.gallery-grid img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gallery-grid img:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

/* Tours Section */
.tours-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.tour-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    text-align: center;
}

.tour-icon {
    font-size: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    line-height: 1;
    color: var(--color-primary);
}

.tour-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

.tour-card p {
    flex-grow: 1;
    margin-bottom: var(--spacing-lg);
}

.tour-footer {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.tour-footer .price {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-dark);
}

/* Testimonials Section */
.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.testimonial-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    font-style: italic;
    text-align: center;
}

.testimonial-card p {
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
    color: var(--color-dark);
}

.testimonial-card cite {
    display: block;
    font-style: normal;
    font-weight: 600;
    color: var(--color-primary);
    margin-top: var(--spacing-md);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    align-items: flex-start;
}

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

.contact-info .section-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.contact-info p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
}

.contact-info .btn-whatsapp-large {
    font-size: 1.1rem;
    padding: 1rem 2rem;
    margin-bottom: var(--spacing-lg);
}

.contact-list {
    text-align: left;
    max-width: 300px;
    margin: 0 auto;
}

.contact-list li {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.contact-list li i {
    font-size: 1.3rem;
    margin-right: var(--spacing-sm);
    color: var(--color-primary);
}

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

.contact-form .form-group {
    margin-bottom: var(--spacing-md);
}

.contact-form label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(6, 78, 59, 0.15);
}

.contact-form input.is-invalid,
.contact-form textarea.is-invalid {
    border-color: red;
}

.contact-form textarea {
    resize: vertical;
}

.contact-form .btn-primary {
    width: 100%;
    margin-top: var(--spacing-md);
}

/* Footer */
.site-footer {
    background-color: var(--color-primary); /* Mesmo verde dos botões */
    color: var(--color-light);
    padding: var(--spacing-md) 0;
    text-align: center;
    font-size: 0.9rem;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a img,
.social-links a i {
    display: inline-block;
    width: 30px;
    height: 30px;
    font-size: 30px; /* Para ícones de fonte */
    color: var(--color-white);
    transition: transform 0.3s ease, color 0.2s ease;
}

.social-links a img {
    object-fit: contain;
}

.social-links a img:hover,
.social-links a i:hover {
    transform: translateY(-3px);
    color: var(--color-accent);
}

/* Footer meta: RNAAT e logo Turismo de Portugal */
.site-footer .badge-rnaat {
    display: inline-block;
    margin-left: var(--spacing-sm);
    padding: 0.1rem 0.5rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    color: var(--color-white);
    font-weight: 600;
}

.site-footer .logo-turismo {
    height: 40px; /* aumentar tamanho do logo */
    width: auto;
    margin-left: var(--spacing-sm);
    vertical-align: middle;
}

/* Manter todos os elementos do parágrafo do footer alinhados na mesma linha quando possível */
.site-footer .footer-inner p {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap; /* permite quebrar de forma elegante em ecrãs muito pequenos */
    justify-content: center;
}

/* Media Queries for Responsiveness */
@media (min-width: 768px) {
    .header-inner {
        flex-wrap: nowrap;
        gap: var(--spacing-lg);
    }

    .site-header .nav {
        display: flex;
        flex-direction: row;
        width: auto;
        margin-top: 0;
    }

    .nav-toggle {
        display: none;
    }

    .hero-wrap {
        flex-direction: row;
        text-align: left;
        align-items: flex-start;
    }

    .hero-content {
        text-align: left;
        max-width: 50%;
    }

    .hero h1 {
        font-size: 3.5rem;
    }

    .stats {
        justify-content: flex-start;
        gap: var(--spacing-xl);
    }

    .booking-panel {
        margin-top: 0;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
        text-align: left;
    }

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

    .contact-info .section-title {
        text-align: left;
    }

    .contact-info .btn-whatsapp-large {
        width: auto;
    }

    .contact-list {
        margin: 0;
    }

    .footer-inner {
        flex-direction: row;
        justify-content: space-between;
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .hero h1 {
        font-size: 4rem;
    }
}