/*
Theme Name: Zitably
Theme URI: https://zitably.com
Author: Zitably
Author URI: https://zitably.com
Description: Dark, minimal blog theme matching the Zitably landing page design. Inter font, midnight palette, blue/purple gradient accents.
Version: 1.0.0
Requires at least: 6.2
Tested up to: 7.0
Requires PHP: 8.0
License: Proprietary
Text Domain: zitably

Dark-mode-only blog theme for blog.zitably.com.
*/

/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #0a0a12;
    --bg-subtle: #10101c;
    --bg-card: #141422;
    --border: #1e1e30;
    --border-light: #2a2a40;
    --text: #f0f0f5;
    --text-muted: #8888a0;
    --text-dim: #5a5a70;
    --accent: #3b82f6;
    --accent-light: #60a5fa;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);
    --gradient-text: linear-gradient(135deg, #60a5fa, #a78bfa);
    --logo-from: #3b82f6;
    --logo-to: #8b5cf6;
    --nav-bg: rgba(10, 10, 18, 0.55);
    --radius: 2px;
    --radius-lg: 4px;
    --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    font-size: 16px;
}

a {
    color: var(--accent-light);
    text-decoration: none;
    transition: color 0.2s;
}

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

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
}

code {
    font-family: "SF Mono", "Fira Code", monospace;
    font-size: 0.85em;
    background: var(--bg-subtle);
    padding: 2px 6px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

pre {
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    overflow-x: auto;
    margin: 24px 0;
    font-size: 0.88rem;
    line-height: 1.6;
}

pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: inherit;
}

blockquote {
    border-left: 3px solid var(--accent);
    padding: 12px 20px;
    margin: 24px 0;
    background: var(--bg-subtle);
    border-radius: 0 var(--radius) var(--radius) 0;
    color: var(--text-muted);
    font-style: italic;
}

hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 48px 0;
}

/* ===== LAYOUT ===== */
.site-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-main {
    flex: 1;
    max-width: 860px;
    margin: 0 auto;
    padding: 120px 24px 80px;
    width: 100%;
}

.site-main.wide {
    max-width: 1200px;
}

/* ===== NAVIGATION ===== */
.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 24px;
    background: var(--nav-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--logo-from), var(--logo-to));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 6px;
}

.logo-z {
    font-weight: 800;
    font-size: 0.7rem;
    letter-spacing: 0;
    -webkit-text-fill-color: var(--logo-from);
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    border: 2px solid var(--logo-from);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    font-size: 0.9rem;
}

.nav-links a {
    color: var(--text-muted);
    transition: color 0.2s;
}

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

.nav-links .nav-cta {
    background: var(--gradient);
    color: white !important;
    padding: 8px 16px;
    border-radius: var(--radius);
    font-weight: 500;
    transition: opacity 0.2s;
}

.nav-links .nav-cta:hover {
    opacity: 0.9;
    color: white !important;
}

/* ===== BLOG LISTING ===== */
.blog-hero {
    position: relative;
    text-align: center;
    padding: 40px 0 64px;
    margin-bottom: 56px;
    overflow: hidden;
}

.blog-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% 0%, rgba(59, 130, 246, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 70% 20%, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.blog-hero-content {
    position: relative;
    z-index: 1;
}

.blog-hero-badge {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--accent-light);
    border: 1px solid rgba(59, 130, 246, 0.3);
    padding: 5px 12px;
    border-radius: 20px;
    margin-bottom: 20px;
    letter-spacing: 0.4px;
}

.blog-hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 16px;
}

.blog-hero-sub {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Post grid */
.post-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.post-card {
    padding: 28px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.post-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.3s;
}

.post-card:hover {
    border-color: var(--border-light);
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.06);
}

.post-card:hover::before {
    opacity: 1;
}

.post-card.featured {
    grid-column: span 3;
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent), 0 8px 40px var(--accent-glow);
}

.post-card.featured::before {
    opacity: 1;
}

.post-card-inner {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.post-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    font-size: 0.78rem;
    color: var(--text-dim);
}

.post-card-meta .category {
    background: var(--accent-glow);
    color: var(--accent-light);
    padding: 2px 8px;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.72rem;
    letter-spacing: 0.3px;
}

.post-card-meta .post-date {
    color: var(--text-muted);
}

.post-card-meta .reading-time {
    color: var(--text-dim);
}

.post-card h2 {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 10px;
    line-height: 1.35;
}

.post-card.featured h2 {
    font-size: 1.4rem;
}

.post-card h2 a {
    color: var(--text);
    transition: color 0.2s;
}

.post-card h2 a:hover {
    color: var(--accent-light);
}

.post-card-excerpt {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.6;
    flex: 1;
}

.post-card-read {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 16px;
    font-size: 0.84rem;
    font-weight: 500;
    color: var(--accent-light);
    transition: color 0.2s;
}

.post-card-read:hover {
    color: var(--text);
}

.post-card-read span {
    display: inline-block;
    transition: transform 0.2s;
}

.post-card-read:hover span {
    transform: translateX(4px);
}

/* Responsive grid */
@media (max-width: 1024px) {
    .post-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .post-card.featured {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .post-grid {
        grid-template-columns: 1fr;
    }

    .post-card.featured {
        grid-column: span 1;
    }

    .blog-hero h1 {
        font-size: 2rem;
    }
}

/* ===== SINGLE POST ===== */
.post-header {
    margin-bottom: 48px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border);
    text-align: center;
}

.post-header h1 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 20px;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.post-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--text-dim);
}

.post-meta time {
    color: var(--text-muted);
}

.post-meta .category-badge {
    background: var(--accent-glow);
    color: var(--accent-light);
    padding: 2px 8px;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.78rem;
}

.post-content {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text);
}

/* Post hero image (inline SVG in content) */
.post-content .post-hero-image {
    margin: 0 0 32px;
    overflow: hidden;
}

.post-content .post-hero-image img {
    width: 100%;
    height: auto;
    display: block;
    margin: 0;
    border-radius: 0;
    border: none;
}

.post-content h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-top: 48px;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.post-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-top: 36px;
    margin-bottom: 12px;
}

.post-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 28px;
    margin-bottom: 8px;
}

.post-content p {
    margin-bottom: 20px;
}

.post-content ul,
.post-content ol {
    margin-bottom: 20px;
    padding-left: 24px;
}

.post-content li {
    margin-bottom: 8px;
    color: var(--text-muted);
}

.post-content li::marker {
    color: var(--accent-light);
}

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

.post-content a {
    color: var(--accent-light);
    text-decoration: underline;
    text-underline-offset: 2px;
}

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

.post-content img {
    margin: 32px 0;
    border: 1px solid var(--border);
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 0.9rem;
}

.post-content th,
.post-content td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.post-content th {
    background: var(--bg-subtle);
    font-weight: 600;
    color: var(--text);
}

.post-content td {
    color: var(--text-muted);
}

/* Post navigation */
.post-nav {
    margin-top: 64px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    gap: 24px;
}

.post-nav a {
    font-size: 0.88rem;
    color: var(--text-muted);
}

.post-nav a:hover {
    color: var(--accent-light);
}

.post-nav .label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== PAGINATION ===== */
.pagination {
    margin-top: 56px;
    display: flex;
    justify-content: center;
    gap: 8px;
}

.pagination a,
.pagination span {
    padding: 8px 14px;
    font-size: 0.85rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    transition: all 0.2s;
}

.pagination a:hover {
    border-color: var(--accent);
    color: var(--accent-light);
}

.pagination .current {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

/* ===== FOOTER ===== */
.site-footer {
    padding: 32px 24px;
    border-top: 1px solid var(--border);
}

.footer-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-brand {
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--logo-from), var(--logo-to));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 6px;
}

.footer-brand .logo-z {
    font-weight: 800;
    font-size: 0.7rem;
    -webkit-text-fill-color: var(--logo-from);
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    border: 2px solid var(--logo-from);
}

.footer-links {
    display: flex;
    gap: 20px;
    font-size: 0.82rem;
}

.footer-links a {
    color: var(--text-muted);
}

.footer-links a:hover {
    color: var(--text);
}

.footer-copy {
    font-size: 0.78rem;
    color: var(--text-dim);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .site-main {
        padding: 100px 20px 60px;
    }

    .nav-links a:not(.nav-cta) {
        display: none;
    }

    .blog-header h1 {
        font-size: 1.6rem;
    }

    .post-header h1 {
        font-size: 1.8rem;
    }

    .post-content {
        font-size: 1rem;
    }

    .footer-inner {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .post-nav {
        flex-direction: column;
    }
}