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

:root {
    --primary: #0095EB;
    --primary-foreground: #ffffff;
    --secondary: #f1f5f9;
    --secondary-foreground: #0f172a;
    --muted: #f8fafc;
    --muted-foreground: #64748b;
    --accent: #f1f5f9;
    --accent-foreground: #0f172a;
    --destructive: #ef4444;
    --destructive-foreground: #ffffff;
    --border: #e2e8f0;
    --input: #e2e8f0;
    --ring: #0095EB;
    --background: #ffffff;
    --foreground: #0f172a;
    --card: #ffffff;
    --card-foreground: #0f172a;
    --popover: #ffffff;
    --popover-foreground: #0f172a;
    --chart-1: #0095EB;
    --chart-2: #10b981;
    --chart-3: #f59e0b;
    --chart-4: #ef4444;
    --chart-5: #8b5cf6;
    --radius: 0.5rem;
    --font-sans: "Inter", sans-serif;
    --font-serif: "Crimson Text", serif;
}

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--foreground);
    background-color: var(--background);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}
main {
    min-height: 100vh;
}
ol {
    padding-left: 1rem;
}
li {
    color: var(--muted-foreground);
}

/* Header */
.header {
    background: var(--background);
    border-bottom: 1px solid var(--border);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.9);
}
.logo {
  background: linear-gradient(to right, #00ccff, #000a42);
  -webkit-background-clip: text; /* necessário no Chrome/Safari */
  -webkit-text-fill-color: transparent; /* oculta o preenchimento padrão */
  background-clip: text; /* compatibilidade */
  color: transparent; /* segurança extra */
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--foreground);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--muted-foreground);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    font-size: 0.875rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.language-switcher {
    display: flex;
    gap: 0.25rem;
}

.lang-btn {
    background: none;
    border: 1px solid var(--border);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.75rem;
    transition: all 0.3s ease;
    color: var(--muted-foreground);
}

.lang-btn.active {
    background: var(--primary);
    color: var(--primary-foreground);
    border-color: var(--primary);
}

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

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('../images/hero-nature.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 8rem 2rem 4rem;
    text-align: center;
    margin-top: 70px;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 3.5rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 1rem;
    line-height: 1.1;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #ffffff;
    margin-bottom: 2rem;
    line-height: 1.5;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 0.875rem;
}

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

.btn-primary:hover {
    background: var(--primary);
    opacity: 0.9;
    transform: translateY(-1px);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--primary-foreground);
}

/* Sections */
.section-title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--foreground);
    margin-bottom: 2rem;
    text-align: center;
}

.featured-articles {
    padding: 4rem 0;
    background: var(--muted);
}
.logo {
    display: flex;
    align-items: center;
    gap: 5px
}

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

.article-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.article-image {
    width: 100%;
    height: 200px;
    background: var(--muted);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted-foreground);
    border-bottom: 1px solid var(--border);
}

.article-content {
    padding: 1.5rem;
}

.article-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--foreground);
}

.article-excerpt {
    color: var(--muted-foreground);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.article-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
}

.article-link:hover {
    text-decoration: underline;
}

.about {
    padding: 4rem 0;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: var(--muted-foreground);
    line-height: 1.7;
}

/* Footer */
.footer {
    background: var(--foreground);
    color: var(--primary-foreground);
    text-align: center;
    padding: 1rem 0;
    border-top: 1px solid var(--border);
}

/* Page-specific styles */
.page-header {
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('../images/hero-nature.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 6rem 0 3rem;
    margin-top: 70px;
    text-align: center;
}

.page-title {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    color: var(--foreground);
    margin-bottom: 1rem;
}

.page-subtitle {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    max-width: 600px;
    margin: 0 auto;
}

.content-section {
    padding: 3rem 0;
}

.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: 1fr 2fr 1fr;
}

.grid-3 {
    grid-column: 2;
    justify-self: center; 
    align-self: center;
}
.affiliates-item {
    grid-column: 2;
    justify-self: center; 
    align-self: center;
}
.affiliates {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.3s ease;
    max-width: 350px;
    min-height: 450px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.card:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.card-image {
    width: 100%;
    height: 200px;
    background: var(--muted);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted-foreground);
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--foreground);
}

.card-text {
    color: var(--muted-foreground);
    margin-bottom: 1rem;
    line-height: 1.6;
}

/* Forms */
form {
    border: 1px solid var(--border);
    padding: 1rem;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--foreground);
    font-size: 0.875rem;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.875rem;
    transition: border-color 0.3s ease;
    background: var(--background);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(0, 149, 235, 0.1);
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--background);
        flex-direction: column;
        padding: 1rem;
        border-top: 1px solid var(--border);
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .rile {
        margin-top: 10px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero {
        padding: 6rem 1rem 3rem;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }

    .grid-2,
    .grid-3 {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 1rem;
    }
}

/* Alert styles for contact form */
.alert {
    padding: 1rem;
    margin: 1rem 0;
    border-radius: var(--radius);
    border: 1px solid;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
    border-color: #bbf7d0;
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border-color: #fecaca;
}