/*
  Hoja de Estilos Principal para PortugalApoia.com
  ----------------------------------------------------
  Autor: HBO Consulting
  Versión: 2.0 (Revisada con mejoras de UX y comentarios)
*/

/* --- VARIABLES GLOBALES (CSS CUSTOM PROPERTIES) --- */
:root {
    --color-primary: #0A3D62;
    --color-accent: #00834B;
    --color-donation: #FFD700;
    --color-text: #333333;
    --color-text-light: #ffffff;
    --color-background: #ffffff;
    --color-background-light: #F8F9FA;
    --color-border: #dee2e6;
    --font-headings: 'Inter', sans-serif;
    --font-body: 'Roboto', sans-serif;
    --border-radius: 8px;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.07);
}

/* --- RESETEO Y ESTILOS BASE --- */
*, *::before, *::after {
    box-sizing: border-box;
}

body, html {
    margin: 0;
    padding: 0;
    font-family: var(--font-body);
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.7;
    font-size: 16px;
    scroll-behavior: smooth;
    overflow-x: hidden;
}

/* --- CONTENEDOR PRINCIPAL --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- ESTILOS DE IMÁGENES --- */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* --- ESTILOS DE BOTONES (MEJORADOS) --- */
.button {
    padding: 14px 32px; /* Aumentado para mayor tamaño */
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    display: inline-block;
    border: none;
    cursor: pointer;
    font-size: 1.1rem; /* Fuente ligeramente más grande */
    text-align: center;
    font-family: var(--font-headings);
    transition: all 0.3s ease; /* Transición suave para todos los efectos */
    box-shadow: 0 2px 8px rgba(0,0,0,0.1); /* Sombra sutil por defecto */
}

.button:hover {
    transform: translateY(-3px); /* Efecto de elevación al pasar el ratón */
    box-shadow: 0 6px 20px rgba(0,0,0,0.2); /* Sombra más pronunciada al pasar el ratón */
}

.button-primary {
    background-color: var(--color-accent);
    color: var(--color-text-light);
}

.button-primary:hover {
    background-color: #00663a;
}

.button-secondary {
    background-color: transparent;
    color: var(--color-text-light);
    border: 2px solid var(--color-text-light);
}

.button-secondary:hover {
    background-color: var(--color-text-light);
    color: var(--color-primary);
}

.apoia-projeto-btn {
    background-color: var(--color-donation);
    color: var(--color-primary);
    border: 2px solid var(--color-donation);
}

.apoia-projeto-btn:hover {
    background-color: #E6C300;
    color: var(--color-primary);
    border-color: #E6C300;
}

.button-fullwidth {
    width: 100%;
    margin-top: auto;
}

/* --- TÍTULOS DE SECCIÓN --- */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--color-primary);
    font-family: var(--font-headings);
}

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

/* --- CABECERA Y NAVEGACIÓN PRINCIPAL --- */
.main-header {
    background-color: var(--color-background);
    padding: 1.2rem 0;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    font-family: var(--font-headings);
}

.main-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
}

.main-nav li {
    margin-left: 35px;
}

.main-nav a {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 700;
    font-family: var(--font-headings);
    font-size: 1rem;
    position: relative;
    padding-bottom: 8px;
    transition: color 0.3s ease;
}

.main-nav a.active {
    color: var(--color-primary);
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background-color: var(--color-primary);
    transition: width 0.3s ease;
}

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

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--color-primary);
    cursor: pointer;
    z-index: 1001;
}

/* --- SECCIÓN HERO (PORTADA) --- */
#hero {
    position: relative;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-text-light);
    background-image: url('images/img_portada.webp');
    background-size: cover;
    background-position: center;
    padding: 60px 24px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(10, 61, 98, 0.8), rgba(10, 61, 98, 0.4));
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
    font-family: var(--font-headings);
}

.hero-subtitle {
    font-size: 1.3rem;
    max-width: 650px;
    margin: 0 auto 2.5rem auto;
}

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

/* --- DISEÑO DE TARJETAS (GRID) --- */
section {
    padding: 40px 0;
}

.causas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 320px));
    gap: 35px;
    justify-content: center;
}

.card-causa {
    background-color: var(--color-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.card-causa:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.card-image-container {
    width: 100%;
    padding-top: 100%;
    position: relative;
    background-color: #f0f0f0;
    overflow: hidden;
}

.card-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-header {
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.card-content {
    padding: 0 16px 16px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-title,
.card-description {
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-word;
}

.card-title {
    margin: 0 0 10px 0;
    font-size: 1.25rem;
}

.card-description {
    margin: 0 0 16px 0;
    flex-grow: 1;
}

/* --- FORMULARIOS --- */
.form-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.donation-form {
    text-align: left;
    margin-top: 40px;
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: var(--font-body);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(10, 61, 98, 0.2);
}

/* --- MODAL DE DONACIÓN --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 1;
    transition: opacity 0.3s ease;
    padding: 20px;
}

.modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background-color: var(--color-background);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    max-width: 500px;
    width: 100%;
    text-align: center;
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
}

.donativo-info {
    text-align: left;
    margin-bottom: 20px;
    word-wrap: break-word;
}

.donativo-info p {
    margin: 5px 0;
}

.selectable-text {
    user-select: text;
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
}

/* --- PIE DE PÁGINA --- */
.main-footer {
    background-color: var(--color-primary);
    color: #ffffff;
    padding: 40px 0 20px 0;
    font-family: var(--font-body);
}

.main-footer a {
    color: #ffffff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.main-footer a:hover {
    color: var(--color-donation);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}

.footer-column h4 {
    font-family: var(--font-headings);
    margin-bottom: 15px;
    font-size: 1.1em;
}

.footer-column p,
.footer-column ul {
    font-size: 0.95em;
}

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

.footer-column ul li {
    margin-bottom: 8px;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    font-size: 0.85em;
    text-align: center;
}

.footer-bottom p {
    margin: 5px 0;
}

/* --- ETIQUETAS Y TAGS --- */
.card-tag-servico, .card-tag-emprego, .card-tag-artigos {
    color: white;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
}

.card-tag-servico { background-color: #3498db; }
.card-tag-emprego { background-color: #e67e22; }
.card-tag-artigos { background-color: #9b59b6; }

.card-id {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-primary);
    background-color: #e9ecef;
    padding: 3px 8px;
    border-radius: 15px;
}

/* --- BOTÓN DE SCROLL-TO-TOP --- */
#scrollTopBtn {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 30px;
    z-index: 99;
    border: none;
    outline: none;
    background-color: var(--color-primary);
    color: white;
    cursor: pointer;
    padding: 15px;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: opacity 0.3s, visibility 0.3s, background-color 0.3s;
    opacity: 0;
    visibility: hidden;
}

#scrollTopBtn.visible {
    display: block;
    opacity: 1;
    visibility: visible;
}

#scrollTopBtn:hover {
    background-color: var(--color-accent);
}

/* --- PRELOADER (PANTALLA DE CARGA) --- */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #ffffff;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
    opacity: 1;
    visibility: visible;
}

#preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

#preloader .spinner {
    width: 80px;
    height: 80px;
    animation: spin 1.5s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* --- CONTENEDOR DE BÚSQUEDA Y FILTROS --- */
.search-container {
    max-width: 800px;
    margin: 40px auto;
    background: #fff;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--color-border);
}

.search-box {
    display: flex;
    gap: 15px;
    align-items: stretch;
}

.search-input-group {
    flex-grow: 1;
    position: relative;
}

.search-input-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
}

#search-input {
    width: 100%;
    padding: 12px 12px 12px 40px;
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.filter-group {
    display: flex;
    gap: 15px;
    align-items: center;
}

.filter-group select {
    padding: 12px;
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background-color: #f8f9fa;
    cursor: pointer;
}

#search-input:focus,
.filter-group select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(0, 131, 75, 0.2);
}

#no-results-message {
    text-align: center;
    font-size: 1.2rem;
    color: var(--color-text);
    margin-top: 40px;
    display: none;
}

.new-tag {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: var(--color-accent);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    z-index: 10;
    display: none;
}

/* --- MEDIA QUERIES (DISEÑO RESPONSIVO) --- */
@media (max-width: 992px) {
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        border-top: 1px solid var(--color-border);
        flex-direction: column;
    }

    .main-nav.nav-visible {
        display: flex;
    }

    .main-nav ul {
        flex-direction: column;
        width: 100%;
    }

    .main-nav li {
        margin: 0;
        width: 100%;
    }

    .main-nav a {
        display: block;
        padding: 15px;
        text-align: center;
        border-bottom: 1px solid var(--color-border);
    }

    .main-nav li:last-child a {
        border-bottom: none;
    }

    .main-nav a::after {
        display: none;
    }

    .mobile-nav-toggle {
        display: block;
    }

    .search-box {
        flex-direction: column;
    }

    .filter-group {
        flex-direction: column;
        align-items: stretch;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.4rem;
        line-height: 1.2;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

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

    .hero-buttons .button {
        width: 80%;
        max-width: 320px;
    }

    .section-title {
        font-size: 2rem;
    }

    .footer-grid {
        text-align: center;
        grid-template-columns: 1fr;
    }

    .footer-column {
        align-items: center;
    }

    #scrollTopBtn {
        bottom: 15px;
        right: 15px;
        width: 45px;
        height: 45px;
        padding: 12px;
    }
}

/* --- CATEGORÍAS DE ACCESO RÁPIDO --- */
#quick-access-categories {
    padding: 60px 0;
}

.category-links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.category-link-card {
    background-color: var(--color-background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 30px;
    text-align: center;
    text-decoration: none;
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    min-height: 220px;
}

.category-link-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.1);
}

.category-icon {
    width: 70px;
    height: 70px;
    margin-bottom: 15px;
    object-fit: contain;
}

.category-link-card h3 {
    font-size: 1.4rem;
    color: var(--color-primary);
    margin-top: 0;
    margin-bottom: 10px;
    font-family: var(--font-headings);
}

.category-link-card p {
    font-size: 0.95rem;
    flex-grow: 1;
}

/* --- MENSAJES DE ERROR DEL FORMULARIO --- */
.error-message {
    color: #c0392b;
    font-size: 0.9em;
    margin-top: 5px;
    display: none;
}

.form-group input.invalid-field,
.form-group textarea.invalid-field {
    border: 2px solid #c0392b;
}

/* --- BANNER DE COOKIES --- */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-primary);
    color: white;
    padding: 15px;
    text-align: center;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

.cookie-banner button {
    padding: 8px 15px;
    background-color: var(--color-donation);
    color: var(--color-primary);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    margin-left: 15px;
}