/*
Theme Name: Khéo Tay Pro (SEO & AdSense Optimized)
Theme URI: https://kheotay.tintucmoi.org
Author: Khéo Tay Team
Author URI: https://kheotay.tintucmoi.org
Description: Giao diện WordPress siêu tốc độ, tối ưu hóa Core Web Vitals (98-100 điểm), tự động sinh Schema.org (Recipe & HowTo), tích hợp Interactive Checklist, chế độ Giữ sáng màn hình (Hands-Free Wake Lock) và các vị trí quảng cáo Google AdSense chống nhảy trang (Zero-CLS) dành riêng cho kheotay.tintucmoi.org.
Version: 2.0.0
License: GPL v2 or later
Text Domain: kheotay-pro
*/

:root {
  --kt-primary: #d94e34;
  --kt-primary-dark: #b53820;
  --kt-primary-light: #fff1ee;
  --kt-accent: #1f7a54;
  --kt-accent-light: #eaf6f0;
  --kt-warn: #d97706;
  --kt-warn-light: #fef3c7;
  --kt-bg: #faf7f2;
  --kt-surface: #ffffff;
  --kt-text: #1f2937;
  --kt-text-muted: #5b6472;
  --kt-border: #e6e0d6;
  --kt-radius: 14px;
  --kt-radius-sm: 8px;
  --kt-shadow: 0 4px 20px rgba(31, 41, 55, 0.06);
  --kt-max-width: 1200px;
}

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

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16.5px;
  line-height: 1.72;
  color: var(--kt-text);
  background-color: var(--kt-bg);
}

a {
  color: var(--kt-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--kt-primary-dark);
}

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

.kt-container {
  max-width: var(--kt-max-width);
  margin: 0 auto;
  padding: 0 16px;
}

/* Header & Navigation */
.kt-header {
  background: var(--kt-surface);
  border-bottom: 1px solid var(--kt-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.kt-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 16px;
}

.kt-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.45rem;
  color: var(--kt-primary);
  letter-spacing: -0.02em;
}

.kt-logo-icon {
  width: 38px;
  height: 38px;
  background: var(--kt-primary);
  color: #fff;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.kt-logo-tagline {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--kt-text-muted);
  letter-spacing: 0;
}

.kt-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.kt-nav a {
  color: var(--kt-text);
  font-weight: 600;
  font-size: 0.93rem;
  padding: 8px 12px;
  border-radius: var(--kt-radius-sm);
}

.kt-nav a:hover,
.kt-nav a.active {
  background: var(--kt-primary-light);
  color: var(--kt-primary);
}

.kt-search-form {
  display: flex;
  align-items: center;
  background: var(--kt-bg);
  border: 1px solid var(--kt-border);
  border-radius: 999px;
  padding: 4px 12px;
}

.kt-search-form input {
  border: none;
  background: transparent;
  padding: 5px 6px;
  font-size: 0.9rem;
  color: var(--kt-text);
  outline: none;
  width: 165px;
}

.kt-search-form button {
  border: none;
  background: var(--kt-primary);
  color: #fff;
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.kt-menu-toggle {
  display: none;
  background: var(--kt-primary-light);
  border: 1px solid var(--kt-primary);
  color: var(--kt-primary);
  border-radius: 8px;
  padding: 7px 11px;
  font-weight: 700;
  cursor: pointer;
}

/* Pillar Hub Bar */
.kt-pillar-bar {
  background: #fff;
  border-bottom: 1px solid var(--kt-border);
  padding: 8px 0;
  overflow-x: auto;
}

.kt-pillar-list {
  display: flex;
  align-items: center;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
  white-space: nowrap;
}

.kt-pillar-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.84rem;
  font-weight: 600;
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--kt-bg);
  color: var(--kt-text);
  border: 1px solid var(--kt-border);
}

.kt-pillar-pill:hover {
  border-color: var(--kt-primary);
  color: var(--kt-primary);
  background: var(--kt-primary-light);
}

/* Main Layout Grid */
.kt-main-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 28px;
  margin: 26px auto 48px;
  align-items: start;
}

/* Breadcrumbs */
.kt-breadcrumbs {
  font-size: 0.86rem;
  color: var(--kt-text-muted);
  margin-bottom: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}

.kt-breadcrumbs a {
  color: var(--kt-text-muted);
  font-weight: 500;
}

.kt-breadcrumbs a:hover {
  color: var(--kt-primary);
}

/* Post Cards Grid */
.kt-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 28px 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--kt-border);
}

.kt-section-title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--kt-text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.kt-posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(265px, 1fr));
  gap: 20px;
}

.kt-card {
  background: var(--kt-surface);
  border: 1px solid var(--kt-border);
  border-radius: var(--kt-radius);
  overflow: hidden;
  box-shadow: var(--kt-shadow);
  display: flex;
  flex-direction: column;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.kt-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 26px rgba(31, 41, 55, 0.1);
}

.kt-card-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #f0ece3;
}

.kt-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  transition: transform 0.3s ease;
}

.kt-card:hover .kt-card-thumb img {
  transform: scale(1.04);
}

.kt-card-badges {
  position: absolute;
  top: 10px;
  left: 10px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.kt-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 700;
  line-height: 1.3;
}

.kt-badge-cat {
  background: rgba(217, 78, 52, 0.92);
  color: #fff;
}

.kt-badge-easy {
  background: var(--kt-accent-light);
  color: var(--kt-accent);
  border: 1px solid rgba(31, 122, 84, 0.25);
}

.kt-badge-medium {
  background: var(--kt-warn-light);
  color: var(--kt-warn);
  border: 1px solid rgba(217, 119, 6, 0.25);
}

.kt-badge-hard {
  background: var(--kt-primary-light);
  color: var(--kt-primary-dark);
  border: 1px solid rgba(217, 78, 52, 0.25);
}

.kt-card-body {
  padding: 15px 16px 18px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.kt-card-title {
  margin: 0 0 8px;
  font-size: 1.05rem;
  line-height: 1.42;
  font-weight: 700;
}

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

.kt-card-title a:hover {
  color: var(--kt-primary);
}

.kt-card-excerpt {
  margin: 0 0 12px;
  font-size: 0.88rem;
  color: var(--kt-text-muted);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.kt-card-meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--kt-text-muted);
  padding-top: 10px;
  border-top: 1px dashed var(--kt-border);
}

/* Single Article Container */
.kt-article-box {
  background: var(--kt-surface);
  border: 1px solid var(--kt-border);
  border-radius: var(--kt-radius);
  padding: 28px 32px;
  box-shadow: var(--kt-shadow);
}

.kt-post-title {
  margin: 6px 0 14px;
  font-size: 1.85rem;
  line-height: 1.3;
  font-weight: 800;
  color: var(--kt-text);
}

.kt-post-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--kt-border);
  font-size: 0.86rem;
  color: var(--kt-text-muted);
}

/* Interactive SXO Action Toolbar (Wake Lock + Print + Checklist Info) */
.kt-sxo-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: linear-gradient(135deg, #fff8f5 0%, #f3faf6 100%);
  border: 1px solid var(--kt-border);
  border-radius: var(--kt-radius-sm);
  padding: 12px 16px;
  margin-bottom: 22px;
}

.kt-sxo-info {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--kt-text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.kt-sxo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.kt-btn-tool {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #fff;
  border: 1px solid var(--kt-border);
  color: var(--kt-text);
  font-size: 0.83rem;
  font-weight: 600;
  padding: 7px 13px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.kt-btn-tool:hover,
.kt-btn-tool.active {
  background: var(--kt-accent);
  color: #fff;
  border-color: var(--kt-accent);
}

/* Auto Table of Contents */
.kt-toc {
  background: var(--kt-bg);
  border: 1px solid var(--kt-border);
  border-left: 4px solid var(--kt-primary);
  border-radius: var(--kt-radius-sm);
  padding: 14px 18px;
  margin: 18px 0 24px;
}

.kt-toc-title {
  font-weight: 700;
  font-size: 0.96rem;
  margin: 0 0 8px;
  color: var(--kt-text);
}

.kt-toc ol {
  margin: 0;
  padding-left: 20px;
  font-size: 0.92rem;
}

.kt-toc li {
  margin-bottom: 4px;
}

/* Post Content Typography & Images */
.kt-entry-content {
  font-size: 1.04rem;
  line-height: 1.8;
  color: #262f3d;
}

.kt-entry-content h2,
.kt-entry-content h3 {
  color: var(--kt-text);
  font-weight: 800;
  margin-top: 1.6em;
  margin-bottom: 0.6em;
  line-height: 1.35;
}

.kt-entry-content h2 {
  font-size: 1.35rem;
  padding-bottom: 6px;
  border-bottom: 2px solid var(--kt-primary-light);
}

.kt-entry-content img {
  margin: 18px auto;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.07);
}

.kt-entry-content .wp-caption {
  max-width: 100%;
  margin: 18px auto;
  text-align: center;
}

.kt-entry-content .wp-caption-text {
  font-size: 0.86rem;
  color: var(--kt-text-muted);
  font-style: italic;
  margin-top: 6px;
}

/* Interactive Ingredients / Materials Checklist */
.kt-entry-content ul li,
.kt-checklist-item {
  position: relative;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background 0.15s ease;
}

.kt-entry-content ul li:hover,
.kt-checklist-item:hover {
  background: var(--kt-accent-light);
}

.kt-checked {
  text-decoration: line-through;
  color: var(--kt-text-muted);
  opacity: 0.72;
}

/* CLS-Safe Google AdSense Containers */
.kt-ad-slot {
  margin: 22px auto;
  padding: 10px;
  background: #fbf9f5;
  border: 1px dashed var(--kt-border);
  border-radius: var(--kt-radius-sm);
  text-align: center;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.kt-ad-slot-banner {
  min-height: 100px;
  margin: 14px auto;
}

.kt-ad-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #9ca3af;
  margin-bottom: 6px;
}

/* Sidebar */
.kt-sidebar {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.kt-sidebar-sticky {
  position: sticky;
  top: 84px;
}

.kt-widget {
  background: var(--kt-surface);
  border: 1px solid var(--kt-border);
  border-radius: var(--kt-radius);
  padding: 20px;
  box-shadow: var(--kt-shadow);
}

.kt-widget-title {
  margin: 0 0 14px;
  font-size: 1.08rem;
  font-weight: 800;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--kt-primary-light);
  color: var(--kt-text);
}

.kt-mini-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.kt-mini-item {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 12px;
  align-items: center;
}

.kt-mini-thumb {
  width: 76px;
  height: 56px;
  object-fit: cover;
  border-radius: 6px;
  background: #eee;
}

.kt-mini-title {
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.38;
  color: var(--kt-text);
}

.kt-mini-title:hover {
  color: var(--kt-primary);
}

/* Pagination */
.kt-pagination,
.wp-pagenavi {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 32px 0 12px;
}

.kt-pagination a,
.kt-pagination span,
.wp-pagenavi a,
.wp-pagenavi span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 38px;
  padding: 0 12px;
  border-radius: 8px;
  background: var(--kt-surface);
  border: 1px solid var(--kt-border);
  color: var(--kt-text);
  font-weight: 600;
  font-size: 0.9rem;
}

.kt-pagination .current,
.wp-pagenavi span.current {
  background: var(--kt-primary);
  color: #fff;
  border-color: var(--kt-primary);
}

/* E-E-A-T Author Box & Footer */
.kt-author-box {
  margin-top: 28px;
  padding: 18px 20px;
  background: var(--kt-bg);
  border: 1px solid var(--kt-border);
  border-radius: var(--kt-radius-sm);
  display: flex;
  gap: 14px;
  align-items: center;
}

.kt-footer {
  background: #18202c;
  color: #d1d5db;
  padding: 44px 0 28px;
  margin-top: 56px;
  font-size: 0.92rem;
}

.kt-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.kt-footer h4 {
  color: #fff;
  margin: 0 0 12px;
  font-size: 1.05rem;
}

.kt-footer a {
  color: #d1d5db;
}

.kt-footer a:hover {
  color: #fff;
}

.kt-footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Responsive Breakpoints */
@media (max-width: 960px) {
  .kt-main-layout {
    grid-template-columns: 1fr;
  }
  .kt-footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .kt-menu-toggle {
    display: inline-flex;
  }
  .kt-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 10px 0;
  }
  .kt-nav.open {
    display: flex;
  }
  .kt-header-inner {
    flex-wrap: wrap;
    padding: 10px 0;
  }
  .kt-article-box {
    padding: 18px 16px;
  }
  .kt-post-title {
    font-size: 1.45rem;
  }
}

/* Print Stylesheet for Recipe / DIY Guide Printing */
@media print {
  .kt-header,
  .kt-pillar-bar,
  .kt-sidebar,
  .kt-sxo-toolbar,
  .kt-ad-slot,
  .kt-footer,
  .kt-related-section,
  #comments {
    display: none !important;
  }
  .kt-main-layout {
    display: block;
  }
  .kt-article-box {
    border: none;
    box-shadow: none;
    padding: 0;
  }
}