/*
Theme Name:   Newspaper Child — Bloomberg Style
Theme URI:    https://tng-inc.vn
Description:  High-performance child theme for Newspaper theme. Modern editorial design inspired by Bloomberg. Mobile-first, optimized for Core Web Vitals.
Author:       Your Name
Template:     Newspaper
Version:      1.0.0
Text Domain:  newspaper-child
*/

/* ============================================================
   DESIGN TOKENS — Bloomberg-Inspired Editorial System
   ============================================================ */
:root {
  /* Brand Colors */
  --c-black:        #0a0a0a;
  --c-white:        #ffffff;
  --c-gray-950:     #0f0f0f;
  --c-gray-900:     #1a1a1a;
  --c-gray-800:     #2d2d2d;
  --c-gray-700:     #404040;
  --c-gray-600:     #595959;
  --c-gray-400:     #8c8c8c;
  --c-gray-200:     #d4d4d4;
  --c-gray-100:     #f0f0f0;
  --c-gray-50:      #f8f8f8;

  /* Accent — Bloomberg signature orange-red */
  --c-accent:       #e84118;
  --c-accent-dark:  #c43410;
  --c-accent-light: #ff6b47;

  /* Secondary accent — Bloomberg blue */
  --c-blue:         #0066cc;
  --c-blue-dark:    #004fa3;

  /* Semantic */
  --c-bg:           var(--c-white);
  --c-surface:      var(--c-gray-50);
  --c-border:       #e0e0e0;
  --c-border-dark:  #c8c8c8;
  --c-text:         var(--c-black);
  --c-text-muted:   var(--c-gray-600);
  --c-text-subtle:  var(--c-gray-400);

  /* Typography */
  --font-headline:  'Merriweather', Georgia, 'Times New Roman', serif;
  --font-ui:        'DM Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono:      'JetBrains Mono', 'Courier New', monospace;

  /* Type Scale */
  --text-xs:    0.6875rem;   /* 11px */
  --text-sm:    0.8125rem;   /* 13px */
  --text-base:  1rem;        /* 16px */
  --text-md:    1.125rem;    /* 18px */
  --text-lg:    1.25rem;     /* 20px */
  --text-xl:    1.5rem;      /* 24px */
  --text-2xl:   1.875rem;    /* 30px */
  --text-3xl:   2.25rem;     /* 36px */
  --text-4xl:   3rem;        /* 48px */
  --text-5xl:   3.75rem;     /* 60px */

  /* Spacing (4px base) */
  --sp-1:   0.25rem;
  --sp-2:   0.5rem;
  --sp-3:   0.75rem;
  --sp-4:   1rem;
  --sp-5:   1.25rem;
  --sp-6:   1.5rem;
  --sp-8:   2rem;
  --sp-10:  2.5rem;
  --sp-12:  3rem;
  --sp-16:  4rem;
  --sp-20:  5rem;
  --sp-24:  6rem;

  /* Layout */
  --max-w-content:  1280px;
  --max-w-article:  740px;
  --max-w-narrow:   960px;
  --sidebar-w:      300px;
  --gutter:         clamp(1rem, 4vw, 2rem);

  /* Elevation */
  --shadow-sm:  0 1px 2px rgba(0,0,0,.06), 0 1px 3px rgba(0,0,0,.1);
  --shadow-md:  0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg:  0 10px 25px rgba(0,0,0,.1), 0 4px 10px rgba(0,0,0,.06);
  --shadow-xl:  0 20px 40px rgba(0,0,0,.12);

  /* Motion */
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:    cubic-bezier(0.7, 0, 0.84, 0);
  --dur-fast:   150ms;
  --dur-base:   250ms;
  --dur-slow:   400ms;

  /* Border radius */
  --radius-sm:  2px;
  --radius-md:  4px;
  --radius-lg:  8px;
}

/* ============================================================
   PERFORMANCE: Critical CSS resets
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-ui);
  font-size: var(--text-base);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* Lazy load placeholder */
img[loading="lazy"] {
  background: var(--c-gray-100);
}

/* ============================================================
   FONT LOADING — Preloaded via functions.php
   ============================================================ */
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('https://fonts.gstatic.com/s/dmsans/v15/rP2tp2ywxg089UriI5-g4vlH9VoD8CmcqZG40F9JadbnoEwAkJxhTmf3ZGMZpg.woff2') format('woff2');
}

/* ============================================================
   NEWSPAPER THEME OVERRIDES — Targeted, specific overrides
   ============================================================ */

/* --- Reset Newspaper's default colors --- */
.td-header-wrap,
#td-header-menu,
.td_block_wrap .td-block-title-wrap .td-block-title,
.td-block-title-wrap .td-block-title > * {
  color: inherit;
}

/* ============================================================
   HEADER — Bloomberg-style top bar
   ============================================================ */
.td-header-wrap {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--c-black) !important;
  border-bottom: 3px solid var(--c-accent) !important;
  box-shadow: 0 2px 20px rgba(0,0,0,.3);
}

/* Breaking news ticker strip */
.td-header-top-menu-full,
.td-header-top-menu {
  background: var(--c-gray-950) !important;
  border-bottom: 1px solid var(--c-gray-800) !important;
}

/* Logo area */
.td-header-logo-wrap .td-header-logo img,
.td_stretch_content .td-header-logo-wrap .td-header-logo img {
  max-height: 48px;
  width: auto;
}

/* Main nav */
#td-header-menu,
.td-header-menu-wrap-full,
.td-header-menu-wrap {
  background: var(--c-black) !important;
}

.sf-menu > li > a,
#td-header-menu .sf-menu > li > a {
  font-family: var(--font-ui) !important;
  font-size: var(--text-sm) !important;
  font-weight: 700 !important;
  letter-spacing: 0.08em !important;
  text-transform: uppercase !important;
  color: var(--c-gray-200) !important;
  padding: var(--sp-5) var(--sp-4) !important;
  transition: color var(--dur-fast) ease !important;
}

.sf-menu > li > a:hover,
.sf-menu > li.current-menu-item > a,
.sf-menu > li.sfHover > a {
  color: var(--c-accent) !important;
  background: transparent !important;
}

/* Dropdown menu */
.sf-menu .sub-menu {
  background: var(--c-gray-950) !important;
  border-top: 2px solid var(--c-accent) !important;
  border: 1px solid var(--c-gray-800);
  border-top-color: var(--c-accent) !important;
  box-shadow: var(--shadow-xl) !important;
  min-width: 220px !important;
}

.sf-menu .sub-menu a {
  color: var(--c-gray-300, #d1d1d1) !important;
  font-size: var(--text-sm) !important;
  font-weight: 500 !important;
  border-bottom: 1px solid var(--c-gray-800) !important;
  padding: var(--sp-3) var(--sp-5) !important;
  transition: all var(--dur-fast) ease !important;
}

.sf-menu .sub-menu a:hover {
  color: var(--c-white) !important;
  background: var(--c-gray-900) !important;
  padding-left: var(--sp-6) !important;
}

/* Search */
.td-header-search-wrap .td-search-input {
  background: var(--c-gray-900) !important;
  border: 1px solid var(--c-gray-700) !important;
  color: var(--c-white) !important;
  border-radius: var(--radius-sm);
}

/* ============================================================
   BREAKING NEWS BAR
   ============================================================ */
.td-breaking-news-wrap,
.td-breaking-news {
  background: var(--c-accent) !important;
  color: var(--c-white) !important;
}

.td-breaking-news-title {
  background: var(--c-gray-950) !important;
  font-family: var(--font-ui) !important;
  font-weight: 700 !important;
  font-size: var(--text-xs) !important;
  letter-spacing: 0.1em !important;
  text-transform: uppercase !important;
}

/* ============================================================
   LAYOUT CONTAINER
   ============================================================ */
.td-container,
.td-container-wrap .td-container {
  max-width: var(--max-w-content) !important;
  padding-left: var(--gutter) !important;
  padding-right: var(--gutter) !important;
}

/* ============================================================
   BLOCK TITLES — Category section headers
   ============================================================ */
.td-block-title-wrap {
  margin-bottom: var(--sp-4) !important;
  padding-bottom: var(--sp-3) !important;
  border-bottom: 3px solid var(--c-black) !important;
  position: relative;
}

.td-block-title-wrap::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--c-accent);
}

.td-block-title > *,
.td-block-title,
h4.block-title {
  font-family: var(--font-ui) !important;
  font-size: var(--text-xs) !important;
  font-weight: 800 !important;
  letter-spacing: 0.12em !important;
  text-transform: uppercase !important;
  color: var(--c-black) !important;
}

/* ============================================================
   POST CARDS — List / Grid view
   ============================================================ */
.td_module_wrap,
.td-animation-stack {
  transition: transform var(--dur-base) var(--ease-out) !important;
}

.td_module_wrap:hover {
  transform: translateY(-2px);
}

/* Card image wrapper */
.td-module-image {
  overflow: hidden;
  border-radius: var(--radius-sm);
}

.td-module-image img {
  transition: transform var(--dur-slow) var(--ease-out) !important;
  will-change: transform;
}

.td-module-image:hover img {
  transform: scale(1.04) !important;
}

/* Post title */
.entry-title a,
.td-module-title a {
  font-family: var(--font-headline) !important;
  color: var(--c-black) !important;
  text-decoration: none !important;
  line-height: 1.3 !important;
  transition: color var(--dur-fast) ease !important;
}

.entry-title a:hover,
.td-module-title a:hover {
  color: var(--c-accent) !important;
}

/* Category label on cards */
.td-post-category,
.td-post-category:hover {
  background: var(--c-accent) !important;
  color: var(--c-white) !important;
  font-family: var(--font-ui) !important;
  font-size: var(--text-xs) !important;
  font-weight: 700 !important;
  letter-spacing: 0.08em !important;
  text-transform: uppercase !important;
  padding: 2px var(--sp-2) !important;
  border-radius: var(--radius-sm) !important;
}

/* Meta info */
.td-post-date,
.td-module-meta-info,
.entry-meta,
.td-post-author-name {
  font-family: var(--font-ui) !important;
  font-size: var(--text-xs) !important;
  color: var(--c-text-subtle) !important;
  letter-spacing: 0.02em;
}

.td-post-author-name a,
.td-post-author-name a:hover {
  color: var(--c-blue) !important;
  font-weight: 600 !important;
}

/* ============================================================
   FEATURED / HERO BLOCK
   ============================================================ */
.td_block_big_grid_9 .td-block-row .td-block-span8 .entry-title,
.td-big-grid-post .entry-title {
  font-size: clamp(var(--text-xl), 3vw, var(--text-3xl)) !important;
  font-weight: 700 !important;
  line-height: 1.2 !important;
}

/* Overlay on featured images */
.td-big-grid-post .td-image-wrap::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 70%;
  background: linear-gradient(to top, rgba(0,0,0,.85) 0%, transparent 100%);
  pointer-events: none;
}

/* ============================================================
   SINGLE POST — Article typography
   ============================================================ */
.td-post-content,
.post .entry-content,
.page .entry-content {
  font-family: var(--font-headline) !important;
  font-size: clamp(var(--text-base), 1.5vw, var(--text-md)) !important;
  line-height: 1.8 !important;
  color: #1a1a1a !important;
  max-width: var(--max-w-article);
}

.td-post-content p {
  margin-bottom: var(--sp-6) !important;
}

.td-post-content h2 {
  font-family: var(--font-ui) !important;
  font-size: clamp(var(--text-xl), 2.5vw, var(--text-2xl)) !important;
  font-weight: 800 !important;
  letter-spacing: -0.02em;
  margin: var(--sp-10) 0 var(--sp-4) !important;
  padding-bottom: var(--sp-3);
  border-bottom: 2px solid var(--c-border);
}

.td-post-content h3 {
  font-family: var(--font-ui) !important;
  font-size: var(--text-lg) !important;
  font-weight: 700 !important;
  margin: var(--sp-8) 0 var(--sp-3) !important;
}

.td-post-content a {
  color: var(--c-blue) !important;
  text-decoration: underline !important;
  text-decoration-thickness: 1px !important;
  text-underline-offset: 2px !important;
  transition: color var(--dur-fast) ease !important;
}

.td-post-content a:hover {
  color: var(--c-accent) !important;
}

/* Blockquote */
.td-post-content blockquote {
  border-left: 4px solid var(--c-accent) !important;
  padding: var(--sp-4) var(--sp-6) !important;
  margin: var(--sp-8) 0 !important;
  background: var(--c-gray-50) !important;
  font-style: italic;
  color: var(--c-gray-700) !important;
}

/* Post header */
.td-post-header .entry-title {
  font-family: var(--font-headline) !important;
  font-size: clamp(var(--text-2xl), 4vw, var(--text-5xl)) !important;
  font-weight: 700 !important;
  line-height: 1.15 !important;
  letter-spacing: -0.02em;
  color: var(--c-black) !important;
}

.td-post-sub-title {
  font-family: var(--font-ui) !important;
  font-size: var(--text-lg) !important;
  color: var(--c-gray-600) !important;
  line-height: 1.5 !important;
  margin-top: var(--sp-3) !important;
  font-weight: 400 !important;
}

/* Author box */
.td-author-info,
.td-author-line {
  font-family: var(--font-ui) !important;
  border-top: 1px solid var(--c-border) !important;
  padding-top: var(--sp-4) !important;
}

.td-author-name a {
  font-weight: 700 !important;
  color: var(--c-black) !important;
  font-size: var(--text-sm) !important;
  text-transform: uppercase !important;
  letter-spacing: 0.06em !important;
}

/* Reading time / share bar */
.td-post-sharing-top {
  border-bottom: 1px solid var(--c-border) !important;
  padding-bottom: var(--sp-4) !important;
  margin-bottom: var(--sp-6) !important;
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.td-pb-sidebar-right .td-pb-span4,
.td-sidebar {
  font-family: var(--font-ui) !important;
}

.widget {
  margin-bottom: var(--sp-8) !important;
}

.widget .widgettitle,
.td-sidebar .widget .widgettitle {
  font-family: var(--font-ui) !important;
  font-size: var(--text-xs) !important;
  font-weight: 800 !important;
  letter-spacing: 0.12em !important;
  text-transform: uppercase !important;
  color: var(--c-black) !important;
  padding-bottom: var(--sp-3) !important;
  margin-bottom: var(--sp-4) !important;
  border-bottom: 3px solid var(--c-black) !important;
  position: relative;
}

.widget .widgettitle::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 40px; height: 3px;
  background: var(--c-accent);
}

/* Popular posts sidebar */
.td-list-item .td-image-wrap {
  border-radius: var(--radius-sm) !important;
  overflow: hidden;
}

.td-list-item .entry-title a {
  font-family: var(--font-ui) !important;
  font-size: var(--text-sm) !important;
  font-weight: 600 !important;
  line-height: 1.4 !important;
}

/* ============================================================
   CATEGORY PAGE
   ============================================================ */
.td-category-header {
  background: var(--c-black) !important;
  padding: var(--sp-8) var(--gutter) !important;
  margin-bottom: var(--sp-8) !important;
}

.td-category-header h1,
.page-header .page-title {
  font-family: var(--font-ui) !important;
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl)) !important;
  font-weight: 900 !important;
  color: var(--c-white) !important;
  letter-spacing: -0.02em;
}

/* ============================================================
   PAGINATION
   ============================================================ */
.page-nav .current,
.page-nav a:hover,
.td-page-wrap .page-nav .td-icon-menu-right {
  background: var(--c-accent) !important;
  color: var(--c-white) !important;
  border-color: var(--c-accent) !important;
}

.page-nav a {
  font-family: var(--font-ui) !important;
  font-weight: 600 !important;
  font-size: var(--text-sm) !important;
  border: 1px solid var(--c-border) !important;
  transition: all var(--dur-fast) ease !important;
}

/* ============================================================
   FOOTER
   ============================================================ */
.td-footer-wrapper,
#td-footer-wrapper {
  background: var(--c-gray-950) !important;
  color: var(--c-gray-300, #d1d1d1) !important;
  border-top: 3px solid var(--c-accent) !important;
  padding-top: var(--sp-12) !important;
}

.td-footer-wrapper .widgettitle,
#td-footer-wrapper .widgettitle {
  color: var(--c-white) !important;
  font-size: var(--text-xs) !important;
  font-weight: 800 !important;
  letter-spacing: 0.12em !important;
  text-transform: uppercase !important;
  border-bottom-color: var(--c-gray-700) !important;
}

.td-footer-wrapper .widgettitle::after {
  background: var(--c-accent);
}

.td-footer-wrapper a,
#td-footer-wrapper a {
  color: var(--c-gray-400) !important;
  transition: color var(--dur-fast) ease !important;
}

.td-footer-wrapper a:hover,
#td-footer-wrapper a:hover {
  color: var(--c-accent) !important;
}

.td-sub-footer-container {
  background: var(--c-black) !important;
  border-top: 1px solid var(--c-gray-800) !important;
}

.td-sub-footer-copyright {
  color: var(--c-gray-600) !important;
  font-size: var(--text-xs) !important;
  font-family: var(--font-ui) !important;
}

/* ============================================================
   TAGS
   ============================================================ */
.td-tags-and-cats-holder .entry-cats a,
.td-tags li a {
  font-family: var(--font-ui) !important;
  font-size: var(--text-xs) !important;
  font-weight: 600 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.06em !important;
  padding: var(--sp-1) var(--sp-3) !important;
  border: 1px solid var(--c-border-dark) !important;
  border-radius: var(--radius-sm) !important;
  color: var(--c-gray-700) !important;
  transition: all var(--dur-fast) ease !important;
}

.td-tags-and-cats-holder .entry-cats a:hover,
.td-tags li a:hover {
  background: var(--c-accent) !important;
  border-color: var(--c-accent) !important;
  color: var(--c-white) !important;
}

/* ============================================================
   BUTTONS & CTAs
   ============================================================ */
.td-read-more a,
.td_module_wrap .td-read-more a {
  font-family: var(--font-ui) !important;
  font-size: var(--text-xs) !important;
  font-weight: 700 !important;
  letter-spacing: 0.08em !important;
  text-transform: uppercase !important;
  color: var(--c-accent) !important;
  border-bottom: 1px solid var(--c-accent) !important;
  padding-bottom: 1px !important;
  transition: all var(--dur-fast) ease !important;
}

/* ============================================================
   MOBILE-FIRST RESPONSIVE — 320px baseline
   ============================================================ */

/* --- Mobile: 320px – 767px --- */
@media (max-width: 767px) {

  :root {
    --gutter: 1rem;
  }

  /* Header */
  .td-header-wrap {
    border-bottom-width: 2px !important;
  }

  /* Mobile menu toggle */
  .td-menu-btn .td-icon-menu,
  .td-menu-login-section .td-icon-profile {
    color: var(--c-white) !important;
  }

  /* Hamburger */
  .td-header-mobile-wrap .td-affix,
  .td-header-mobile-bg {
    background: var(--c-black) !important;
    border-bottom: 2px solid var(--c-accent) !important;
  }

  /* Mobile nav drawer */
  #td-mobile-nav {
    background: var(--c-gray-950) !important;
  }

  #td-mobile-nav .td-mobile-main-menu > li > a {
    font-family: var(--font-ui) !important;
    font-size: var(--text-base) !important;
    font-weight: 700 !important;
    color: var(--c-gray-100, #f3f3f3) !important;
    border-bottom: 1px solid var(--c-gray-800) !important;
    padding: var(--sp-4) var(--sp-5) !important;
    letter-spacing: 0.04em;
  }

  #td-mobile-nav .td-mobile-main-menu > li > a:hover,
  #td-mobile-nav .td-mobile-main-menu > li.current-menu-item > a {
    color: var(--c-accent) !important;
    background: var(--c-gray-900) !important;
  }

  /* Post header on mobile */
  .td-post-header .entry-title {
    font-size: clamp(var(--text-xl), 6vw, var(--text-2xl)) !important;
    line-height: 1.2 !important;
  }

  /* Body text on mobile */
  .td-post-content,
  .post .entry-content {
    font-size: var(--text-base) !important;
    line-height: 1.75 !important;
  }

  /* Card titles on mobile */
  .td-module-title a {
    font-size: var(--text-base) !important;
  }

  /* Full width images on mobile */
  .td-post-content img,
  .td-post-content .wp-block-image {
    margin-left: calc(-1 * var(--gutter)) !important;
    margin-right: calc(-1 * var(--gutter)) !important;
    max-width: calc(100% + 2 * var(--gutter)) !important;
    width: calc(100% + 2 * var(--gutter)) !important;
    border-radius: 0 !important;
  }

  /* Footer on mobile */
  .td-footer-wrapper {
    padding-top: var(--sp-8) !important;
  }

  /* Touch targets — minimum 44px */
  .sf-menu > li > a,
  #td-mobile-nav a,
  .page-nav a,
  .td-post-category,
  .td-tags li a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
}

/* --- Tablet: 768px – 1023px --- */
@media (min-width: 768px) and (max-width: 1023px) {

  :root {
    --gutter: 1.5rem;
  }

  .td-post-header .entry-title {
    font-size: clamp(var(--text-2xl), 4vw, var(--text-3xl)) !important;
  }

  /* 2-col grid on tablet */
  .td-pb-row .td-pb-span4 {
    flex: 0 0 50% !important;
    max-width: 50% !important;
  }
}

/* --- Desktop: 1024px+ --- */
@media (min-width: 1024px) {
  .td-header-wrap {
    position: sticky;
    top: 0;
    z-index: 1000;
  }
}

/* --- Large: 1280px+ --- */
@media (min-width: 1280px) {
  :root {
    --gutter: 2rem;
  }
}

/* ============================================================
   PERFORMANCE: Reduce motion for accessibility
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
  .td-header-wrap,
  .td-footer-wrapper,
  .td-sidebar,
  .td-related-posts,
  .td-post-sharing-top,
  .td-ps-wrap {
    display: none !important;
  }

  .td-post-content {
    font-size: 12pt !important;
    max-width: 100% !important;
    color: #000 !important;
  }

  a[href]::after {
    content: " (" attr(href) ")";
    font-size: 10pt;
    color: #666;
  }
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.nc-visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.nc-skip-link {
  position: absolute;
  top: -100%;
  left: var(--gutter);
  background: var(--c-accent);
  color: var(--c-white);
  padding: var(--sp-3) var(--sp-5);
  font-weight: 700;
  z-index: 9999;
  transition: top var(--dur-fast) ease;
}

.nc-skip-link:focus {
  top: var(--sp-3);
}