/*
Theme Name: Flavor Starter
Theme URI: https://github.com/eunhubs/flavor-starter
Author: EunHubs
Author URI: https://eunhubs.com
Description: A clean, minimal, Notion-inspired WordPress theme for modern blogs. Features card-based layouts, Inter typography, and distraction-free reading experience.
Version: 1.0.0
License: MIT License
License URI: https://opensource.org/licenses/MIT
Text Domain: flavor-starter
Tags: blog, minimal, clean, notion-style, card-layout, responsive

Flavor Starter - Notion-inspired minimal blog theme
*/

/* ============================================
   CSS Variables & Design Tokens
   ============================================ */

:root {
    /* Colors */
    --color-bg: #ffffff;
    --color-bg-secondary: #f7f6f3;
    --color-bg-hover: #f1f1ef;
    --color-text: #37352f;
    --color-text-secondary: #787774;
    --color-text-muted: #9b9a97;
    --color-border: #e9e9e7;
    --color-accent: #2eaadc;
    --color-accent-hover: #0b76b7;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-serif: 'Georgia', 'Times New Roman', serif;
    --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;

    /* Layout */
    --max-width: 900px;
    --max-width-wide: 1200px;
    --header-height: 60px;

    /* Effects */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition: 0.2s ease;
}

/* ============================================
   Reset & Base
   ============================================ */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
}

a {
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition);
}

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

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

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

h1 { font-size: 2.5rem; font-weight: 700; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--space-lg);
}

/* ============================================
   Layout
   ============================================ */

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

.site-content {
    flex: 1;
    width: 100%;
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: var(--space-xl) var(--space-lg);
}

.content-area {
    max-width: var(--max-width);
    margin: 0 auto;
}

/* ============================================
   Header
   ============================================ */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
}

.header-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-branding {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.site-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

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

.site-title a:hover {
    color: var(--color-text);
    opacity: 0.8;
}

/* Navigation */
.main-navigation ul {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
}

.main-navigation a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-sm) 0;
    position: relative;
}

.main-navigation a:hover,
.main-navigation .current-menu-item a {
    color: var(--color-text);
}

.main-navigation a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-text);
    transition: width var(--transition);
}

.main-navigation a:hover::after,
.main-navigation .current-menu-item a::after {
    width: 100%;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    padding: var(--space-sm);
    cursor: pointer;
}

/* ============================================
   Post Cards (Archive/Home)
   ============================================ */

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--space-xl);
}

.post-card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
}

.post-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.post-card-image {
    aspect-ratio: 16/9;
    overflow: hidden;
    background: var(--color-bg-secondary);
}

.post-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.post-card:hover .post-card-image img {
    transform: scale(1.03);
}

.post-card-content {
    padding: var(--space-lg) var(--space-xl);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.post-card-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.post-card-category {
    background: var(--color-accent);
    color: #fff;
    padding: 3px 10px;
    border-radius: 100px;
    font-weight: 500;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.post-card-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    line-height: 1.35;
    color: var(--color-text);
}

.post-card-title a {
    color: inherit;
}

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

.post-card-excerpt {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-top: auto;
}

/* Featured Post (First post - horizontal layout) */
.post-card.featured {
    grid-column: 1 / -1;
    flex-direction: row;
}

.post-card.featured .post-card-image {
    flex: 0 0 50%;
    aspect-ratio: 16/10;
}

.post-card.featured .post-card-content {
    padding: var(--space-xl) var(--space-2xl);
    justify-content: center;
}

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

.post-card.featured .post-card-excerpt {
    -webkit-line-clamp: 4;
    font-size: 1rem;
}

/* Regular cards - compact image */
.post-card:not(.featured) .post-card-image {
    aspect-ratio: 2/1;
}

/* Responsive featured card */
@media (max-width: 768px) {
    .post-card.featured {
        flex-direction: column;
    }
    .post-card.featured .post-card-image {
        flex: none;
        aspect-ratio: 16/9;
    }
    .post-card.featured .post-card-content {
        padding: var(--space-lg);
    }
    .post-card.featured .post-card-title {
        font-size: 1.35rem;
    }
}

/* ============================================
   Single Post
   ============================================ */

.single-post-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--space-2xl);
    padding-top: var(--space-xl);
}

.single-post-meta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.single-post-title {
    font-size: 2.75rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-lg);
}

.single-post-excerpt {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Featured Image */
.single-post-thumbnail {
    margin: 0 auto var(--space-2xl);
    max-width: 900px;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.single-post-thumbnail img {
    width: 100%;
    height: auto;
}

/* Post Content */
.post-content {
    max-width: 720px;
    margin: 0 auto;
    font-size: 1.125rem;
    line-height: 1.8;
}

.post-content h2 {
    margin-top: var(--space-2xl);
    margin-bottom: var(--space-md);
    padding-top: var(--space-md);
}

.post-content h3 {
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
}

.post-content p {
    margin-bottom: var(--space-lg);
}

.post-content a {
    color: var(--color-accent);
    text-decoration: underline;
    text-decoration-color: rgba(46, 170, 220, 0.4);
    text-underline-offset: 2px;
}

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

/* Lists */
.post-content ul,
.post-content ol {
    margin-bottom: var(--space-lg);
    padding-left: var(--space-xl);
}

.post-content li {
    margin-bottom: var(--space-sm);
}

/* Blockquote */
.post-content blockquote {
    margin: var(--space-xl) 0;
    padding: var(--space-lg) var(--space-xl);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-text);
    font-size: 1.125rem;
    font-style: italic;
}

.post-content blockquote p:last-child {
    margin-bottom: 0;
}

/* Code */
.post-content code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--color-bg-secondary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    color: #eb5757;
}

.post-content pre {
    background: #2f3437;
    color: #f8f8f2;
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--space-xl) 0;
}

.post-content pre code {
    background: none;
    color: inherit;
    padding: 0;
}

/* Images in content */
.post-content figure {
    margin: var(--space-xl) 0;
}

.post-content figure img {
    border-radius: var(--radius-md);
}

.post-content figcaption {
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: var(--space-sm);
}

/* Tables */
.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-xl) 0;
    font-size: 0.9375rem;
}

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

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

/* ============================================
   Post Footer
   ============================================ */

.post-footer {
    max-width: 720px;
    margin: var(--space-3xl) auto 0;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.post-tag {
    background: var(--color-bg-secondary);
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    transition: background var(--transition);
}

.post-tag:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

/* Author Box */
.author-box {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    margin-top: var(--space-xl);
}

.author-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.author-info h4 {
    margin-bottom: var(--space-xs);
}

.author-info p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin: 0;
}

/* ============================================
   Related Posts
   ============================================ */

.related-posts {
    max-width: 900px;
    margin: var(--space-3xl) auto 0;
    padding-top: var(--space-2xl);
}

.related-posts h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-xl);
}

.related-posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-lg);
}

/* ============================================
   Footer
   ============================================ */

.site-footer {
    background: var(--color-bg-secondary);
    padding: var(--space-2xl) var(--space-lg);
    margin-top: var(--space-3xl);
}

.footer-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-copyright {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

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

/* ============================================
   Pagination
   ============================================ */

.pagination {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-2xl);
}

.pagination a,
.pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    transition: background var(--transition);
}

.pagination a:hover {
    background: var(--color-bg-secondary);
}

.pagination .current {
    background: var(--color-text);
    color: var(--color-bg);
}

/* ============================================
   Search
   ============================================ */

.search-form {
    display: flex;
    gap: var(--space-sm);
}

.search-form input[type="search"] {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-family: inherit;
}

.search-form input[type="search"]:focus {
    outline: none;
    border-color: var(--color-accent);
}

.search-form button {
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-text);
    color: var(--color-bg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    cursor: pointer;
    transition: background var(--transition);
}

.search-form button:hover {
    background: var(--color-accent);
}

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

.error-404 {
    text-align: center;
    padding: var(--space-3xl) var(--space-lg);
}

.error-404 h1 {
    font-size: 6rem;
    font-weight: 700;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.error-404 p {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xl);
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
    :root {
        --header-height: 56px;
    }

    .site-content {
        padding: var(--space-lg) var(--space-md);
    }

    .header-inner {
        padding: 0 var(--space-md);
    }

    .menu-toggle {
        display: block;
    }

    .main-navigation {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        padding: var(--space-md);
    }

    .main-navigation.active {
        display: block;
    }

    .main-navigation ul {
        flex-direction: column;
        gap: 0;
    }

    .main-navigation a {
        display: block;
        padding: var(--space-md);
    }

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

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

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

    .footer-inner {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

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

    .author-box {
        flex-direction: column;
        text-align: center;
    }
}

/* ============================================
   WordPress Core Styles
   ============================================ */

.alignleft {
    float: left;
    margin-right: var(--space-lg);
    margin-bottom: var(--space-md);
}

.alignright {
    float: right;
    margin-left: var(--space-lg);
    margin-bottom: var(--space-md);
}

.aligncenter {
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.wp-caption {
    max-width: 100%;
}

.wp-caption-text {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    text-align: center;
    margin-top: var(--space-sm);
}

.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}