/*
Theme Name: SimplePsy
Theme URI: https://example.com/simplepsy
Author: Custom Development
Author URI: https://example.com
Description: Чистая, воздушная тема для статейного сайта в стиле Яндекс Дзен. Белый фон, чёрный текст, светло-серые подложки, скруглённые углы, много пространства. Поддержка Gutenberg, бесконечный скролл, прогресс чтения, рекомендации.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: simplepsy
Tags: blog, news, custom-logo, custom-menu, featured-images, threaded-comments, translation-ready, block-styles, wide-blocks, full-site-editing
*/

/* ==========================================================================
   CSS Variables (only gray scale)
   ========================================================================== */
:root {
  --color-white: #ffffff;
  --color-black: #111111;
  --color-gray-50: #fafafa;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #eeeeee;
  --color-gray-300: #e0e0e0;
  --color-gray-400: #bdbdbd;
  --color-gray-500: #9e9e9e;
  --color-gray-600: #757575;
  --color-gray-700: #616161;
  --color-gray-800: #424242;
  --color-gray-900: #212121;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 80px;

  --max-content-width: 678px;
  --header-height: 72px;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-base: 18px;
  --line-height-base: 1.7;
  --transition: 0.2s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-black);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

a:hover {
  opacity: 0.7;
}

ul, ol {
  list-style: none;
}

button,
input,
textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  outline: none;
}

button {
  cursor: pointer;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-black);
  margin-bottom: var(--space-md);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: 1.25em;
}

.entry-content p,
.entry-content ul,
.entry-content ol {
  margin-bottom: 1.5em;
}

.entry-content a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.entry-content ul,
.entry-content ol {
  padding-left: 1.5em;
  list-style: disc;
}

.entry-content ol {
  list-style: decimal;
}

/* ==========================================================================
   Layout helpers
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.container--narrow {
  max-width: var(--max-content-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   Header (sticky)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  gap: var(--space-md);
}

.site-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.site-logo img {
  max-height: 40px;
  width: auto;
}

.site-logo .site-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-black);
  letter-spacing: -0.02em;
}

/* Search in center */
.header-search {
  flex: 1;
  max-width: 480px;
  margin: 0 auto;
}

.header-search form {
  display: flex;
  align-items: center;
  background: var(--color-gray-100);
  border-radius: var(--radius-xl);
  padding: 10px 16px;
  transition: background var(--transition);
}

.header-search form:focus-within {
  background: var(--color-gray-200);
}

.header-search input[type="search"] {
  flex: 1;
  border: none;
  background: transparent;
  padding: 0 8px;
  color: var(--color-black);
  font-size: 0.95rem;
}

.header-search input[type="search"]::placeholder {
  color: var(--color-gray-500);
}

.header-search button {
  color: var(--color-gray-600);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
}

.header-search button:hover {
  color: var(--color-black);
}

/* Hamburger */
.menu-toggle {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-black);
  transition: background var(--transition);
}

.menu-toggle:hover {
  background: var(--color-gray-100);
}

.menu-toggle svg {
  width: 24px;
  height: 24px;
}

/* Off-canvas menu */
.site-navigation {
  position: fixed;
  top: 0;
  right: -100%;
  width: min(320px, 85vw);
  height: 100vh;
  background: var(--color-white);
  z-index: 1100;
  padding: var(--space-lg) var(--space-md);
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.08);
  transition: right 0.3s ease;
  overflow-y: auto;
}

.site-navigation.is-open {
  right: 0;
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.nav-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

.nav-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
}

.nav-close:hover {
  background: var(--color-gray-100);
}

.primary-menu {
  margin-top: var(--space-xl);
}

.primary-menu li {
  margin-bottom: var(--space-sm);
}

.primary-menu a {
  display: block;
  padding: 12px 16px;
  font-size: 1.1rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: background var(--transition);
}

.primary-menu a:hover,
.primary-menu .current-menu-item a {
  background: var(--color-gray-100);
}

/* ==========================================================================
   Reading progress bar
   ========================================================================== */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--color-black);
  width: 0%;
  z-index: 1200;
  transition: width 0.1s linear;
}

/* ==========================================================================
   Filters / Tabs
   ========================================================================== */
.filters-bar {
  margin: var(--space-xl) 0 var(--space-lg);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.filters-bar::-webkit-scrollbar {
  display: none;
}

.filters-list {
  display: flex;
  gap: var(--space-sm);
  padding-bottom: 4px;
}

.filter-btn {
  flex-shrink: 0;
  padding: 10px 20px;
  background: var(--color-gray-100);
  border-radius: var(--radius-xl);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-gray-700);
  transition: all var(--transition);
  white-space: nowrap;
}

.filter-btn:hover {
  background: var(--color-gray-200);
  color: var(--color-black);
}

.filter-btn.is-active {
  background: var(--color-black);
  color: var(--color-white);
}

/* ==========================================================================
   Posts Grid
   ========================================================================== */
.posts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

@media (min-width: 600px) {
  .posts-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .posts-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1280px) {
  .posts-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
  }
}

/* Post Card */
.post-card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}

.post-card:hover {
  transform: translateY(-4px);
}

.post-card__image {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-gray-100);
  border-radius: var(--radius-lg);
}

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

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

.post-card__body {
  padding: var(--space-md) 4px 0;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.post-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: var(--space-sm);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-card__excerpt {
  font-size: 0.95rem;
  color: var(--color-gray-600);
  line-height: 1.5;
  margin-bottom: var(--space-md);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}

.post-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  color: var(--color-gray-500);
  margin-top: auto;
}

.post-card__author {
  display: flex;
  align-items: center;
  gap: 8px;
}

.post-card__avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--color-gray-200);
}

.post-card__stats {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-left: auto;
}

.post-card__stats span {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ==========================================================================
   Single Post
   ========================================================================== */
.single-post {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

.single-post__header {
  margin-bottom: var(--space-xl);
}

.single-post__title {
  font-size: clamp(1.75rem, 5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
}

.single-post__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.95rem;
  color: var(--color-gray-600);
  margin-bottom: var(--space-lg);
}

.single-post__author {
  display: flex;
  align-items: center;
  gap: 10px;
}

.single-post__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
}

.single-post__featured {
  margin-bottom: var(--space-xl);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--color-gray-100);
}

.single-post__featured img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.entry-content {
  font-size: 1.125rem;
  line-height: 1.75;
  color: var(--color-black);
}

.entry-content > * + * {
  margin-top: 1.5em;
}

.entry-content h2,
.entry-content h3 {
  margin-top: 2em;
  margin-bottom: 0.75em;
}

.entry-content img {
  border-radius: var(--radius-md);
  margin: 2em auto;
}

.entry-content blockquote {
  margin: 2em 0;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-gray-400);
  font-size: 1.15rem;
  color: var(--color-gray-800);
}

.entry-content .wp-block-quote.is-style-large {
  font-size: 1.4rem;
  padding: var(--space-lg);
}

/* ==========================================================================
   Related posts ("Читайте также")
   ========================================================================== */
.related-posts {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-gray-200);
}

.related-posts__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

.related-posts__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 700px) {
  .related-posts__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ==========================================================================
   Infinite scroll container (for single)
   ========================================================================== */
.infinite-posts {
  /* next articles will be appended here */
}

.infinite-post {
  border-top: 1px solid var(--color-gray-200);
  padding-top: var(--space-xl);
  margin-top: var(--space-xl);
}

.load-more-trigger,
.infinite-loader {
  text-align: center;
  padding: var(--space-xl) 0;
  color: var(--color-gray-500);
}

.spinner {
  display: inline-block;
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-black);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ==========================================================================
   Archive / Search headers
   ========================================================================== */
.page-header {
  margin: var(--space-xl) 0 var(--space-lg);
  text-align: center;
}

.page-header h1 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin-bottom: var(--space-sm);
}

.page-header p {
  color: var(--color-gray-600);
}

/* ==========================================================================
   404
   ========================================================================== */
.error-404 {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.error-404 h1 {
  font-size: 4rem;
  margin-bottom: var(--space-sm);
}

.error-404 p {
  color: var(--color-gray-600);
  margin-bottom: var(--space-lg);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  background: var(--color-black);
  color: var(--color-white);
  border-radius: var(--radius-xl);
  font-weight: 600;
  transition: opacity var(--transition);
}

.btn:hover {
  opacity: 0.85;
  color: var(--color-white);
}

/* ==========================================================================
   Gutenberg / Block styles
   ========================================================================== */
.wp-block-image {
  margin: 2em 0;
}

.wp-block-image img {
  border-radius: var(--radius-md);
}

.wp-block-quote,
.wp-block-pullquote {
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-gray-400);
  padding: var(--space-md) var(--space-lg);
}

.wp-block-pullquote {
  border-left: none;
  border-top: 4px solid var(--color-gray-400);
  border-bottom: 4px solid var(--color-gray-400);
  text-align: center;
}

.wp-block-code,
.wp-block-preformatted {
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  font-size: 0.9rem;
  overflow-x: auto;
}

.wp-block-table {
  border-collapse: collapse;
  width: 100%;
}

.wp-block-table td,
.wp-block-table th {
  border: 1px solid var(--color-gray-300);
  padding: 12px;
}

.wp-block-table th {
  background: var(--color-gray-100);
}

.has-background {
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

/* Highlight / mark style */
.simplepsy-highlight {
  background: var(--color-gray-200);
  padding: 0.1em 0.3em;
  border-radius: 4px;
}

/* ==========================================================================
   Load more / Pagination
   ========================================================================== */
.pagination,
.load-more-wrap {
  display: flex;
  justify-content: center;
  margin: var(--space-xl) 0;
}

.load-more-btn {
  padding: 14px 32px;
  background: var(--color-gray-100);
  border-radius: var(--radius-xl);
  font-weight: 600;
  color: var(--color-black);
  transition: background var(--transition);
}

.load-more-btn:hover {
  background: var(--color-gray-200);
}

/* ==========================================================================
   Utilities
   ========================================================================== */
.mt-xl { margin-top: var(--space-xl); }
.mb-xl { margin-bottom: var(--space-xl); }

.text-center { text-align: center; }
.text-muted { color: var(--color-gray-500); }

/* Hide default WP elements we don't need */
.site-footer {
  display: none;
}

/* Comments disabled by design */
.comments-area {
  display: none !important;
}