/* ============================================
   Douglas Chaves — Personal site
   Editorial dark theme with warm accent.
   Distinct from DSL: warmer, more typographic,
   focused on author voice rather than product.
   ============================================ */

:root {
    --bg: #0e0e10;
    --bg-elev: #16161a;
    --bg-elev-2: #1c1c22;
    --border: #2a2a32;
    --text: #f3f1ec;
    --text-muted: #a8a39a;
    --text-dim: #6b6760;
    --accent: #d4a373;        /* warm amber — earthy, photo-friendly */
    --accent-hover: #c7926a;
    --accent-soft: rgba(212, 163, 115, 0.12);

    --serif: 'Fraunces', Georgia, serif;
    --sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --radius: 8px;
    --radius-lg: 16px;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);

    --container: 1100px;
    --gutter: 1.5rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

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

a {
    color: inherit;
    text-decoration: none;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

/* ============================================
   HEADER
   ============================================ */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(12px);
    background: rgba(14, 14, 16, 0.78);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 1rem var(--gutter);
}

.logo {
    font-family: var(--serif);
    font-size: 1.15rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.site-nav {
    display: flex;
    gap: 1.75rem;
    font-size: 0.92rem;
    color: var(--text-muted);
}

.site-nav a:hover {
    color: var(--text);
}

.lang-switcher {
    display: flex;
    gap: 0.25rem;
    font-size: 0.78rem;
    letter-spacing: 0.05em;
}

.lang-link {
    padding: 0.3rem 0.55rem;
    border-radius: 6px;
    color: var(--text-dim);
    transition: color 0.15s, background 0.15s;
}

.lang-link:hover {
    color: var(--text-muted);
}

.lang-link.active {
    color: var(--text);
    background: var(--bg-elev);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

.eyebrow {
    font-size: 0.78rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--serif);
    font-weight: 500;
    font-size: clamp(2rem, 4vw, 2.75rem);
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 640px;
    margin-bottom: 3rem;
}

.section-cta {
    text-align: center;
    margin-top: 3rem;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.6rem;
    border-radius: var(--radius);
    font-family: var(--sans);
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s ease;
}

.btn-primary {
    background: var(--accent);
    color: #1a1410;
}

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

.btn-ghost {
    background: transparent;
    color: var(--text);
    border-color: var(--border);
}

.btn-ghost:hover {
    background: var(--bg-elev);
    border-color: var(--text-dim);
}

/* ============================================
   HERO
   ============================================ */

.hero {
    padding: 6rem 0 5rem;
    border-bottom: 1px solid var(--border);
}

.hero-title {
    font-family: var(--serif);
    font-weight: 400;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    line-height: 1.05;
    letter-spacing: -0.025em;
    max-width: 900px;
    margin-bottom: 1.5rem;
}

.hero-title em {
    font-style: italic;
    color: var(--accent);
    font-weight: 500;
}

.hero-subtitle {
    color: var(--text-muted);
    font-size: 1.15rem;
    max-width: 640px;
    margin-bottom: 2.5rem;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

/* ============================================
   ABOUT
   ============================================ */

.about {
    padding: 6rem 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 4rem;
    align-items: center;
}

.about-photo {
    aspect-ratio: 4 / 5;
    background: var(--bg-elev);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.about-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-copy p {
    color: var(--text-muted);
    margin-top: 1rem;
}

.about-copy p:first-of-type {
    margin-top: 1.5rem;
}

/* ============================================
   PRODUCTS
   ============================================ */

.products {
    padding: 6rem 0;
    background: var(--bg-elev);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.product-card {
    background: var(--bg-elev-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform 0.2s, border-color 0.2s;
}

.product-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
}

.product-card-cover {
    aspect-ratio: 16 / 10;
    background: var(--bg);
    overflow: hidden;
}

.product-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-card-body {
    padding: 2rem;
}

.product-name {
    font-family: var(--serif);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    margin-bottom: 0.4rem;
}

.product-tagline {
    color: var(--accent);
    font-size: 0.92rem;
    margin-bottom: 1rem;
    letter-spacing: 0.01em;
}

.product-desc {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* ============================================
   BLOG (preview + index + post)
   ============================================ */

.blog-preview, .blog-list {
    padding: 6rem 0;
}

.blog-header {
    padding: 6rem 0 2rem;
}

.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.post-card {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform 0.2s, border-color 0.2s;
}

.post-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
}

.post-cover {
    display: block;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--bg-elev-2);
}

.post-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.post-card:hover .post-cover img {
    transform: scale(1.04);
}

.post-card-body {
    padding: 1.75rem;
}

.post-card-date {
    color: var(--text-dim);
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    margin-bottom: 0.6rem;
}

.post-card-title {
    font-family: var(--serif);
    font-size: 1.3rem;
    font-weight: 500;
    line-height: 1.25;
    margin-bottom: 0.75rem;
}

.post-card-title a:hover {
    color: var(--accent);
}

.post-card-excerpt {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.post-card-link {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 500;
}

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

.blog-empty {
    color: var(--text-muted);
    text-align: center;
    padding: 3rem 0;
}

/* ============================================
   POST (single)
   ============================================ */

.post {
    padding: 4rem 0 6rem;
}

.post-container {
    max-width: 720px;
}

.post-back {
    display: inline-block;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 2rem;
}

.post-back:hover {
    color: var(--accent);
}

.post-title {
    font-family: var(--serif);
    font-weight: 500;
    font-size: clamp(2rem, 4vw, 3rem);
    line-height: 1.1;
    letter-spacing: -0.025em;
    margin-bottom: 1rem;
}

.post-date {
    color: var(--text-dim);
    font-size: 0.9rem;
    margin-bottom: 2.5rem;
}

.post-hero {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 2.5rem;
    box-shadow: var(--shadow);
}

.post-content {
    font-size: 1.08rem;
    line-height: 1.75;
    color: var(--text);
}

.post-content p {
    margin-bottom: 1.4rem;
    color: var(--text);
}

.post-content h2 {
    font-family: var(--serif);
    font-size: 1.75rem;
    font-weight: 500;
    margin: 2.5rem 0 1rem;
    letter-spacing: -0.015em;
}

.post-content h3 {
    font-family: var(--serif);
    font-size: 1.35rem;
    font-weight: 500;
    margin: 2rem 0 0.75rem;
}

.post-content a {
    color: var(--accent);
    border-bottom: 1px solid var(--accent-soft);
}

.post-content a:hover {
    border-bottom-color: var(--accent);
}

.post-content blockquote {
    border-left: 3px solid var(--accent);
    padding-left: 1.25rem;
    margin: 2rem 0;
    color: var(--text-muted);
    font-style: italic;
    font-family: var(--serif);
    font-size: 1.15rem;
}

.post-content img {
    border-radius: var(--radius);
    margin: 2rem 0;
}

.post-content code {
    background: var(--bg-elev-2);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    font-size: 0.9em;
}

.post-content pre {
    background: var(--bg-elev-2);
    padding: 1.25rem;
    border-radius: var(--radius);
    overflow-x: auto;
    margin: 1.5rem 0;
}

.post-content ul, .post-content ol {
    margin: 1rem 0 1.5rem 1.5rem;
    color: var(--text);
}

.post-content li {
    margin-bottom: 0.5rem;
}

/* ============================================
   POST CTA (funil pros produtos)
   ============================================ */

.post-cta {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

.post-cta-title {
    font-family: var(--serif);
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.post-cta-subtitle {
    color: var(--text-muted);
    margin: 0 auto 2.5rem;
    max-width: 560px;
}

/* Single product card (cta_product = 'dsl' ou 'sc') */
.post-cta-card {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-align: left;
    transition: border-color 0.2s;
}

.post-cta-card:hover {
    border-color: var(--accent);
}

.post-cta-card-cover {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: var(--bg);
}

.post-cta-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.post-cta-card-body {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.post-cta-card-body h3 {
    font-family: var(--serif);
    font-size: 1.4rem;
    font-weight: 500;
    margin-bottom: 0.3rem;
}

.post-cta-card-body .product-tagline {
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 0.8rem;
}

.post-cta-card-body p:not(.product-tagline) {
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.post-cta-card-body .btn {
    align-self: flex-start;
}

/* Mini cards (cta_product vazio = mostra os 3 produtos) */
.post-cta-dual {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.post-cta-mini {
    background: var(--bg-elev);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-align: center;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s;
}

.post-cta-mini:hover {
    border-color: var(--accent);
}

.post-cta-mini img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
}

.post-cta-mini h3 {
    font-family: var(--serif);
    font-size: 1.15rem;
    font-weight: 500;
    margin: 1.25rem 1rem 0.4rem;
}

.post-cta-mini p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0 1rem 1.25rem;
    flex-grow: 1;
}

.post-cta-mini .btn {
    margin: 0 1rem 1.25rem;
}

@media (max-width: 720px) {
    .post-cta-card {
        grid-template-columns: 1fr;
    }
    .post-cta-card-cover {
        aspect-ratio: 16 / 10;
    }
    .post-cta-dual {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   CONTACT
   ============================================ */

.contact {
    padding: 6rem 0;
    background: var(--bg-elev);
    border-top: 1px solid var(--border);
}

.contact-inner {
    text-align: center;
    max-width: 640px;
}

.contact-inner p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* ============================================
   404
   ============================================ */

.not-found {
    padding: 8rem 0;
    text-align: center;
}

.not-found p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border);
    background: var(--bg);
}

.footer-inner {
    text-align: center;
}

.footer-brand {
    font-family: var(--serif);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.footer-social a {
    color: var(--text-muted);
    transition: color 0.15s;
}

.footer-social a:hover {
    color: var(--accent);
}

.footer-meta {
    color: var(--text-dim);
    font-size: 0.85rem;
    margin-bottom: 0.25rem;
}

/* ============================================
   MOBILE
   ============================================ */

@media (max-width: 720px) {
    .header-inner {
        flex-wrap: wrap;
        gap: 1rem;
    }

    .site-nav {
        order: 3;
        width: 100%;
        justify-content: center;
        padding-top: 0.5rem;
        border-top: 1px solid var(--border);
        gap: 1.25rem;
    }

    .hero {
        padding: 4rem 0 3rem;
    }

    .about, .products, .blog-preview, .blog-list, .contact {
        padding: 4rem 0;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .about-photo {
        max-width: 380px;
        margin: 0 auto;
    }

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

    .product-card-body {
        padding: 1.5rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
    }
}