/* ================================
   Anliben Blog - Estilo Claude
   ================================ */

:root {
    /* Cores do Claude */
    --color-primary: #D97757;
    --color-primary-hover: #C4674A;
    --color-background: #FAF9F6;
    --color-surface: #FFFFFF;
    --color-text: #1A1915;
    --color-text-secondary: #6B6B6B;
    --color-border: #E5E5E0;
    --color-border-light: #F0EFE9;

    /* Tipografia */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-serif: 'Spectral', Georgia, 'Times New Roman', serif;

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

    /* Containers */
    --container-width: 1200px;
    --container-narrow: 720px;

    /* Bordas */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-narrow {
    max-width: var(--container-narrow);
}

/* Header */
.header {
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-lg) 0;
}

.logo {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    display: inline-block;
    transition: color 0.2s ease;
}

.logo:hover {
    color: var(--color-primary);
}

.tagline {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

/* Main */
.main {
    flex: 1;
    padding: var(--spacing-xl) 0;
}

/* Subscribe Section */
.subscribe-section {
    margin-bottom: var(--spacing-2xl);
}

.subscribe-section-post {
    margin-top: var(--spacing-2xl);
    margin-bottom: 0;
}

.subscribe-box {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.subscribe-box h2 {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.subscribe-box p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.subscribe-form {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 450px;
    margin: 0 auto;
}

.subscribe-form input[type="email"] {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    font-family: var(--font-sans);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-surface);
    color: var(--color-text);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.subscribe-form input[type="email"]:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(217, 119, 87, 0.15);
}

.subscribe-form input[type="email"]::placeholder {
    color: var(--color-text-secondary);
}

.subscribe-form button {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-family: var(--font-sans);
    font-weight: 500;
    background-color: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
    white-space: nowrap;
}

.subscribe-form button:hover {
    background-color: var(--color-primary-hover);
}

.subscribe-form button:active {
    transform: scale(0.98);
}

.subscribe-form button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.form-message {
    margin-top: var(--spacing-sm);
    font-size: 0.9rem;
}

.form-message.success {
    color: #2E7D32;
}

.form-message.error {
    color: #C62828;
}

/* Posts Section */
.posts-section {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.posts-list {
    display: grid;
    gap: var(--spacing-md);
}

/* Post Card */
.post-card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-decoration: none;
    color: inherit;
    display: block;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.post-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transform: translateY(-2px);
}

.post-card-title {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
    line-height: 1.4;
}

.post-card-subtitle {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
}

.post-card-meta {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    display: flex;
    gap: var(--spacing-sm);
}

/* Post Single */
.post-single {
    padding-top: var(--spacing-md);
}

.back-link {
    display: inline-block;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    margin-bottom: var(--spacing-lg);
    transition: color 0.2s ease;
}

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

.post-header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.post-title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.post-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
}

.post-meta {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    display: flex;
    gap: var(--spacing-md);
}

.post-author {
    font-weight: 500;
}

/* Post Content */
.post-content {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    line-height: 1.8;
}

.post-content p {
    margin-bottom: var(--spacing-md);
}

.post-content strong {
    font-weight: 600;
    color: var(--color-text);
}

.post-content em {
    font-style: italic;
}

.post-content blockquote {
    border-left: 3px solid var(--color-primary);
    padding-left: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    font-style: italic;
    color: var(--color-text-secondary);
}

.post-content h2 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.post-content h3 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.post-content ul,
.post-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.post-content li {
    margin-bottom: var(--spacing-xs);
}

.post-content a {
    color: var(--color-primary);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
    transition: color 0.2s ease;
}

.post-content a:hover {
    color: var(--color-primary-hover);
}

.post-content .highlight {
    background-color: rgba(217, 119, 87, 0.15);
    padding: 0.1em 0.3em;
    border-radius: 3px;
}

.post-content .separator {
    text-align: center;
    margin: var(--spacing-xl) 0;
    color: var(--color-text-secondary);
    font-size: 1.5rem;
    letter-spacing: 0.5em;
}

/* Footer */
.footer {
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
}

.footer p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    text-align: center;
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
    }

    .logo {
        font-size: 1.75rem;
    }

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

    .subscribe-form button {
        width: 100%;
    }

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

    .post-content {
        font-size: 1.1rem;
    }

    .post-card-title {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .subscribe-box {
        padding: var(--spacing-lg);
    }

    .subscribe-box h2 {
        font-size: 1.5rem;
    }

    .post-title {
        font-size: 1.75rem;
    }

    .post-meta {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

/* Loading state */
.loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-secondary);
}

/* No posts state */
.no-posts {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-secondary);
    font-style: italic;
}