/*
Theme Name: TellTrip Style
Theme URI: https://example.com/
Author: Your Name
Author URI: https://example.com/
Description: Theme tạp chí du lịch lấy cảm hứng bố cục từ telltrip.com. Header logo + menu, trang chủ dạng bài nổi bật và các khối chuyên mục lưới ảnh, footer với menu và mạng xã hội.
Version: 1.0
Requires at least: 5.8
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: LICENSE
Text Domain: telltrip-style
*/

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

:root {
  --color-accent: #1c6dd0;
  --color-accent-dark: #12508f;
  --color-text: #1a1a1a;
  --color-text-light: #666666;
  --color-border: #ececec;
  --color-bg: #ffffff;
  --color-footer-bg: #16181d;
  --color-footer-text: #b7bac1;
  --max-width: 1200px;
  --radius: 10px;
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR",
    "Malgun Gothic", "Helvetica Neue", Arial, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.55;
  font-size: 16px;
}

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

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

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 20px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.section-title a.view-all {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-light);
}

.section-title a.view-all:hover {
  color: var(--color-accent);
}

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

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.site-branding a {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 22px;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -0.5px;
}

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

.main-navigation {
  display: flex;
  align-items: center;
}

.main-navigation ul {
  display: flex;
  gap: 30px;
}

.main-navigation li {
  position: relative;
}

.main-navigation > ul > li > a {
  font-size: 15px;
  font-weight: 600;
  padding: 10px 0;
  display: inline-block;
}

.main-navigation > ul > li > a:hover {
  color: var(--color-accent);
}

.main-navigation ul ul {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  min-width: 200px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  border-radius: 8px;
  padding: 8px 0;
}

.main-navigation li:hover > ul {
  display: block;
}

.main-navigation ul ul li a {
  display: block;
  padding: 8px 18px;
  font-size: 14px;
  font-weight: 500;
}

.main-navigation ul ul li a:hover {
  background: #f5f7fa;
  color: var(--color-accent);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  display: block;
}

@media (max-width: 880px) {
  .menu-toggle {
    display: flex;
  }

  .main-navigation {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding: 10px 20px 20px;
  }

  .main-navigation.is-open {
    display: flex;
  }

  .main-navigation ul {
    flex-direction: column;
    width: 100%;
    gap: 0;
  }

  .main-navigation ul ul {
    display: block;
    position: static;
    box-shadow: none;
    padding-left: 12px;
  }

  .main-navigation li {
    width: 100%;
    border-bottom: 1px solid var(--color-border);
  }

  .main-navigation > ul > li > a {
    width: 100%;
    padding: 12px 0;
  }
}

/* ==========================================================================
   2. HERO / FEATURED SECTION
   ========================================================================== */
.hero-section {
  padding: 30px 0;
  border-bottom: 1px solid var(--color-border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 24px;
}

.hero-main {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16 / 9.5;
}

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

.hero-main:hover img {
  transform: scale(1.04);
}

.hero-main .overlay {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 30px 26px 22px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.75), transparent);
}

.hero-main .cat-label {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}

.hero-main h2 {
  color: #fff;
  font-size: 26px;
  margin: 0;
  line-height: 1.3;
}

.hero-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-list-item {
  display: flex;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.hero-list-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.hero-list-item .thumb {
  width: 96px;
  height: 72px;
  flex: none;
  border-radius: 8px;
  overflow: hidden;
}

.hero-list-item .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-list-item .info span.cat-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
}

.hero-list-item .info h3 {
  font-size: 15px;
  margin: 4px 0 0;
  line-height: 1.4;
  font-weight: 600;
}

.hero-list-item:hover h3 {
  color: var(--color-accent);
}

@media (max-width: 880px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   3. CATEGORY BLOCKS (magazine grid)
   ========================================================================== */
.category-block {
  padding: 40px 0;
  border-bottom: 1px solid var(--color-border);
}

.category-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.category-feature {
  border-radius: var(--radius);
  overflow: hidden;
}

.category-feature .thumb {
  aspect-ratio: 16/10;
  overflow: hidden;
  border-radius: var(--radius);
}

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

.category-feature:hover .thumb img {
  transform: scale(1.05);
}

.category-feature h3 {
  font-size: 19px;
  margin: 14px 0 6px;
  line-height: 1.4;
}

.category-feature:hover h3 {
  color: var(--color-accent);
}

.category-feature p.excerpt {
  color: var(--color-text-light);
  font-size: 14px;
  margin: 0;
}

.small-post-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 20px;
}

.small-post {
  display: flex;
  flex-direction: column;
}

.small-post .thumb {
  aspect-ratio: 4/3;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 10px;
}

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

.small-post:hover .thumb img {
  transform: scale(1.06);
}

.small-post h4 {
  font-size: 14.5px;
  font-weight: 600;
  margin: 0;
  line-height: 1.4;
}

.small-post:hover h4 {
  color: var(--color-accent);
}

@media (max-width: 880px) {
  .category-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .small-post-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   4. SINGLE / PAGE / ARCHIVE CONTENT
   ========================================================================== */
.content-area {
  padding: 40px 0 60px;
}

.entry-header .entry-title {
  font-size: 30px;
  line-height: 1.35;
  margin: 0 0 12px;
}

.entry-meta {
  color: var(--color-text-light);
  font-size: 13px;
  margin-bottom: 24px;
}

.entry-thumbnail {
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 28px;
}

.entry-content {
  font-size: 17px;
  line-height: 1.8;
}

.entry-content img {
  border-radius: 8px;
  margin: 20px 0;
}

.entry-content h2,
.entry-content h3 {
  margin-top: 36px;
}

.archive-title {
  font-size: 26px;
  margin-bottom: 30px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--color-text);
  display: inline-block;
}

.post-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

@media (max-width: 880px) {
  .post-list-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .post-list-grid {
    grid-template-columns: 1fr;
  }
}

.pagination {
  margin-top: 40px;
  display: flex;
  gap: 10px;
  justify-content: center;
}

.pagination a,
.pagination span {
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 14px;
}

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

/* ==========================================================================
   5. FOOTER
   ========================================================================== */
.site-footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 50px 0 24px;
  margin-top: 20px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-branding a {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
}

.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-nav a {
  font-size: 14px;
}

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

.footer-social {
  display: flex;
  gap: 14px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
}

.footer-social a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.footer-bottom {
  padding-top: 22px;
  font-size: 12.5px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

@media (max-width: 700px) {
  .footer-top,
  .footer-bottom {
    flex-direction: column;
  }
}

/* ==========================================================================
   6. WIDGETS / MISC
   ========================================================================== */
.screen-reader-text {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px);
}