/*
Theme Name: eCommpulse
Theme URI: https://ecommpulse.co
Author: eCommpulse
Author URI: https://ecommpulse.co
Description: Data-driven eCommerce intelligence blog for US market entry. SmartScout data + real experience + AI-era perspective.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: ecommpulse
Tags: blog, custom-header, custom-menu, featured-images, threaded-comments, translation-ready
*/

/* =========================================================
   ECOMMPULSE — CSS VARIABLES & RESET
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* ── DARK ZONE (Header / Hero / Footer) */
  --color-dark-bg:       #0A0F1E;
  --color-dark-surface:  #0F1628;
  --color-dark-surface2: #141D35;
  --color-dark-border:   rgba(0, 212, 255, 0.14);

  /* ── LIGHT ZONE (Body / Cards / Content) */
  --color-bg:        #F7F9FC;
  --color-surface:   #FFFFFF;
  --color-surface2:  #F0F4F8;
  --color-border:    #E2E8F0;
  --color-border2:   #EDF2F7;

  /* Brand Colors */
  --color-primary:   #0066FF;
  --color-primary-light: #3B82F6;
  --color-cyan:      #00D4FF;
  --color-accent:    #FF6B35;
  --color-gold:      #F59E0B;
  --color-green:     #10B981;

  /* Text — Light Zone */
  --color-text:      #0F172A;
  --color-text-muted:#475569;
  --color-text-dim:  #94A3B8;

  /* Text — Dark Zone */
  --color-dark-text:      #F1F5F9;
  --color-dark-text-muted:#94A3B8;
  --color-dark-text-dim:  #4A5A78;

  /* Gradients */
  --grad-primary:    linear-gradient(135deg, #0066FF 0%, #00D4FF 100%);
  --grad-accent:     linear-gradient(135deg, #FF6B35 0%, #FF3CAC 100%);

  /* Shadows */
  --shadow-sm:       0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:       0 4px 16px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
  --shadow-lg:       0 12px 40px rgba(0,0,0,0.1);

  /* Glow Effects */
  --glow-primary:    0 0 30px rgba(0, 102, 255, 0.25);
  --glow-accent:     0 0 30px rgba(255, 107, 53, 0.25);

  /* Extended Palette (light zone) */
  --color-blue-600:  #2563EB;
  --color-blue-50:   #EFF6FF;
  --color-blue-100:  #DBEAFE;
  --color-blue-soft: #F0F7FF;
  --color-slate-100: #F0F4F8;
  --color-slate-200: #CBD5E1;
  --color-text-body: #334155;
  --color-text-head: #0F172A;
  --color-text-sub:  #1E293B;

  /* Typography */
  --font-display:    'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body:       'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:       'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs:   4px;
  --space-sm:   8px;
  --space-md:   16px;
  --space-lg:   24px;
  --space-xl:   40px;
  --space-2xl:  64px;
  --space-3xl:  96px;

  /* Layout */
  --container:  1200px;
  --sidebar:    300px;
  --radius:     8px;
  --radius-lg:  16px;

  /* Transitions */
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: #fff;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

p { margin-bottom: 1.25rem; }
ul, ol { padding-left: 1.5rem; margin-bottom: 1.25rem; }
li { margin-bottom: 0.4rem; }

/* =========================================================
   LAYOUT
   ========================================================= */

.ep-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.ep-layout {
  display: grid;
  grid-template-columns: 1fr var(--sidebar);
  gap: var(--space-2xl);
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-3xl);
  align-items: start;
}

@media (max-width: 1024px) {
  .ep-layout {
    grid-template-columns: 1fr;
  }
  .ep-sidebar {
    display: none;
  }
}

@media (max-width: 768px) {
  .ep-container {
    padding: 0 var(--space-md);
  }
}

/* =========================================================
   SCROLLBAR
   ========================================================= */

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-slate-100); }
::-webkit-scrollbar-thumb { background: var(--color-slate-200); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-primary); }

/* =========================================================
   HEADER
   ========================================================= */

#ep-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 15, 30, 0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

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

/* Logo */
.ep-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.ep-logo-mark {
  width: 36px;
  height: 36px;
  position: relative;
  flex-shrink: 0;
}

.ep-logo-pulse {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.ep-logo-pulse::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1.5px solid rgba(0, 212, 255, 0.4);
  animation: ep-pulse-ring 2s ease-out infinite;
}

.ep-logo-pulse::after {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  border: 1px solid rgba(0, 212, 255, 0.15);
  animation: ep-pulse-ring 2s ease-out 0.5s infinite;
}

@keyframes ep-pulse-ring {
  0%   { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.5); opacity: 0; }
}

.ep-logo-icon {
  font-size: 16px;
  position: relative;
  z-index: 1;
}

.ep-logo-text {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
  color: #fff;
}

.ep-logo-text span {
  color: var(--color-primary);
}

/* Nav */
.ep-nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.ep-nav a {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(203, 213, 225, 0.85);
  padding: 7px 13px;
  border-radius: var(--radius);
  transition: all var(--transition);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.ep-nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.ep-nav a.current-menu-item {
  color: var(--color-primary);
  background: rgba(0, 212, 255, 0.08);
}

.ep-header-cta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

/* Free AI Scan 버튼 */
.ep-header-scan-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  background: transparent;
  color: #00D4FF;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 100px;
  border: 1.5px solid rgba(0, 212, 255, 0.5);
  letter-spacing: 0.01em;
  text-decoration: none;
  white-space: nowrap;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  flex-shrink: 0;
}

.ep-header-scan-btn:hover {
  background: rgba(0, 212, 255, 0.1);
  border-color: #00D4FF;
  color: #00D4FF;
  transform: translateY(-1px);
}

/* Mobile Menu Toggle */
.ep-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--color-text);
}

.ep-menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  margin: 5px 0;
  transition: all var(--transition);
  border-radius: 2px;
}

@media (max-width: 900px) {
  .ep-nav { display: none; }
  .ep-nav.is-open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md);
    z-index: 999;
  }
  .ep-nav.is-open a {
    width: 100%;
    padding: 12px 16px;
    font-size: 1rem;
  }
  .ep-menu-toggle { display: block; }
}

/* =========================================================
   TICKER / MARQUEE
   ========================================================= */

.ep-ticker {
  background: var(--color-dark-surface);
  border-bottom: 2px solid rgba(0, 102, 255, 0.15);
  overflow: hidden;
  height: 38px;
  display: flex;
  align-items: center;
}

.ep-ticker-label {
  background: var(--color-primary);
  color: #000;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0 14px;
  height: 100%;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  white-space: nowrap;
}

.ep-ticker-track {
  display: flex;
  animation: ep-ticker-scroll 40s linear infinite;
  white-space: nowrap;
  padding-left: var(--space-xl);
}

.ep-ticker-item {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-dark-text-muted);
  padding: 0 var(--space-xl);
  display: flex;
  align-items: center;
  gap: 8px;
}

.ep-ticker-item .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-primary);
}

@keyframes ep-ticker-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* =========================================================
   HERO — FRONT PAGE
   ========================================================= */

.ep-hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-3xl) 0 calc(var(--space-2xl) + 20px);
  min-height: 560px;
  display: flex;
  align-items: center;
  background: var(--color-dark-bg);
}

.ep-hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 50%, rgba(0, 212, 255, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(255, 107, 53, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

.ep-hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.ep-hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.ep-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: var(--space-lg);
  padding: 6px 14px;
  border: 1px solid rgba(0, 212, 255, 0.25);
  border-radius: 100px;
  background: rgba(0, 212, 255, 0.06);
}

.ep-hero-eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: blink 1.5s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

.ep-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
  color: #fff;
}

.ep-hero-desc {
  color: var(--color-dark-text-muted) !important;
}

.ep-hero h1 em {
  font-style: normal;
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.ep-hero-desc {
  font-size: 1.05rem;
  color: var(--color-dark-text-muted);
  line-height: 1.75;
  margin-bottom: var(--space-xl);
  max-width: 560px;
}

.ep-hero-stats {
  display: flex;
  gap: var(--space-xl);
  flex-wrap: wrap;
}

.ep-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ep-stat-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-cyan);
  letter-spacing: -0.03em;
}

.ep-stat-label {
  font-size: 0.75rem;
  color: var(--color-dark-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* =========================================================
   CATEGORY FILTER TABS
   ========================================================= */

.ep-cat-tabs {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 68px;
  z-index: 100;
}

.ep-cat-tabs-inner {
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.ep-cat-tabs-inner::-webkit-scrollbar { display: none; }

.ep-cat-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 var(--space-lg);
  height: 50px;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-text-dim);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  position: relative;
}

.ep-cat-tab:first-child { padding-left: 0; }

.ep-cat-tab:hover,
.ep-cat-tab.active {
  color: var(--color-text);
  border-bottom-color: var(--color-primary);
}

.ep-cat-tab.active {
  color: var(--color-primary);
}

.ep-cat-tab .count {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-dim);
  background: var(--color-surface2);
  padding: 1px 7px;
  border-radius: 100px;
}

.ep-cat-tab.active .count {
  background: rgba(0, 212, 255, 0.12);
  color: var(--color-primary);
}

/* =========================================================
   POST CARDS
   ========================================================= */

/* Featured Card — 상하 구조 (이미지 위, 텍스트 아래) */
.ep-card-featured {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-2xl);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  position: relative;
  box-shadow: var(--shadow-md);
}

.ep-card-featured:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* 이미지 영역 - 고정 높이 */
.ep-card-featured .ep-card-img {
  width: 100%;
  height: 340px;
  overflow: hidden;
  background: var(--color-surface2);
  flex-shrink: 0;
  position: relative;
}

.ep-card-featured .ep-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.5s ease;
}

.ep-card-featured:hover .ep-card-img img {
  transform: scale(1.03);
}

/* 텍스트 영역 - 이미지 아래 */
.ep-card-featured .ep-card-body {
  padding: var(--space-lg) var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.ep-card-featured-badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 100px;
  z-index: 2;
}

/* Featured card image link */
.ep-card-featured .ep-card-img a {
  display: block;
  width: 100%;
  height: 100%;
}

.ep-card-featured .ep-card-img a img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform 0.5s ease;
}

/* Standard Card */
.ep-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
}

.ep-card:hover {
  border-color: var(--color-primary-light);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.ep-card-img {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-surface2);
  position: relative;
}

.ep-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.ep-card:hover .ep-card-img img {
  transform: scale(1.05);
}

.ep-card-img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  background: linear-gradient(135deg, var(--color-surface2) 0%, #1a2440 100%);
}

.ep-card-body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  flex: 1;
}

.ep-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.ep-cat-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 100px;
  border: 1px solid;
  text-decoration: none;
  transition: all var(--transition);
}

/* Category color variants */
.ep-cat--us-market    { color: #60A5FA; border-color: rgba(96,165,250,0.3); background: rgba(96,165,250,0.06); }
.ep-cat--amazon       { color: #F59E0B; border-color: rgba(245,158,11,0.3); background: rgba(245,158,11,0.06); }
.ep-cat--kbeauty      { color: #F472B6; border-color: rgba(244,114,182,0.3); background: rgba(244,114,182,0.06); }
.ep-cat--digital      { color: #34D399; border-color: rgba(52,211,153,0.3); background: rgba(52,211,153,0.06); }
.ep-cat--data         { color: #A78BFA; border-color: rgba(167,139,250,0.3); background: rgba(167,139,250,0.06); }
.ep-cat--ai           { color: #00D4FF; border-color: rgba(0,212,255,0.3); background: rgba(0,212,255,0.06); }

.ep-card-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #94A3B8;
  margin-left: auto;
}

/* Card footer border light */
.ep-card-footer {
  border-top-color: var(--color-border) !important;
}

.ep-card-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--color-text);
  text-decoration: none;
  display: block;
  transition: color var(--transition);
}

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

/* Card body text */
.ep-card-excerpt {
  color: var(--color-text-muted) !important;
}

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

/* Card body text */
.ep-card-excerpt {
  color: var(--color-text-muted) !important;
}

.ep-card-excerpt {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ep-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border2);
  margin-top: auto;
}

.ep-read-time {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-dim);
}

.ep-read-more {
  color: var(--color-primary) !important;
}

.ep-read-more {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  transition: gap var(--transition);
}

.ep-read-more:hover {
  gap: 9px;
  color: var(--color-primary);
}

/* Post Grid */
.ep-posts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 640px) {
  .ep-posts-grid {
    grid-template-columns: 1fr;
  }
}

/* =========================================================
   SECTION HEADERS
   ========================================================= */

.ep-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
  gap: var(--space-md);
}

.ep-section-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}

.ep-section-link {
  color: var(--color-text-dim);
}

.ep-section-title::before {
  content: '';
  display: block;
  width: 3px;
  height: 20px;
  background: linear-gradient(180deg, #0066FF, #00D4FF);
  border-radius: 2px;
  flex-shrink: 0;
}

.ep-section-link {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-dim);
  text-decoration: none;
  transition: color var(--transition);
  white-space: nowrap;
}

.ep-section-link:hover {
  color: var(--color-primary);
}

/* =========================================================
   CATEGORIES GRID (home)
   ========================================================= */

.ep-cats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

@media (max-width: 900px) {
  .ep-cats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .ep-cats-grid { grid-template-columns: 1fr; }
}

.ep-cat-card {
  display: block;
  padding: var(--space-xl) var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.ep-cat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  opacity: 1;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  transition: all var(--transition);
}

.ep-cat-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.ep-cat-card:hover::before { height: 5px; }

/* Category card color accents */
.ep-cat-card--us::before    { background: #60A5FA; }
.ep-cat-card--amazon::before { background: #F59E0B; }
.ep-cat-card--kbeauty::before { background: #F472B6; }
.ep-cat-card--digital::before { background: #34D399; }
.ep-cat-card--data::before  { background: #A78BFA; }
.ep-cat-card--ai::before    { background: var(--color-primary); }

.ep-cat-card-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
  display: block;
}

.ep-cat-card-name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.ep-cat-card-count {
  color: var(--color-text-dim) !important;
  background: var(--color-surface2) !important;
}

.ep-cat-card-desc {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  line-height: 1.55;
}

.ep-cat-card-count {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--color-text-dim);
  background: var(--color-surface2);
  padding: 3px 8px;
  border-radius: 100px;
}

/* =========================================================
   SIDEBAR
   ========================================================= */

.ep-sidebar {
  position: sticky;
  top: calc(68px + var(--space-lg));
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.ep-widget {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.ep-widget-title {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-dim);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
}

/* Newsletter Widget */
.ep-newsletter-widget {
  background: linear-gradient(135deg, #0A0F1E 0%, #0F1E3D 100%);
  border: 1px solid rgba(0,212,255,0.2);
  position: relative;
  overflow: hidden;
  color: var(--color-dark-text);
}

.ep-newsletter-widget::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,0.1) 0%, transparent 70%);
  pointer-events: none;
}

.ep-newsletter-widget .ep-widget-title {
  color: var(--color-primary);
  border-color: rgba(0,212,255,0.15);
}

.ep-nl-tagline {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-dark-text);
  margin-bottom: var(--space-xs);
  line-height: 1.4;
}

.ep-nl-desc {
  font-size: 0.8rem;
  color: var(--color-dark-text-muted);
  margin-bottom: var(--space-md);
  line-height: 1.55;
}

.ep-nl-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.ep-nl-input {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text);
  width: 100%;
  transition: border-color var(--transition);
}

.ep-nl-input::placeholder { color: var(--color-text-dim); }
.ep-nl-input:focus { outline: none; border-color: var(--color-primary); }

.ep-nl-btn {
  background: var(--grad-primary);
  color: #000;
  border: none;
  border-radius: var(--radius);
  padding: 11px 16px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity var(--transition), transform var(--transition);
  letter-spacing: 0.02em;
}

.ep-nl-btn:hover { opacity: 0.9; transform: translateY(-1px); }
.ep-nl-note { font-size: 0.7rem; color: var(--color-text-dim); text-align: center; }

/* Sidebar Post List */
.ep-sidebar-posts {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.ep-sidebar-post {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  text-decoration: none;
}

.ep-sidebar-post-img {
  width: 60px;
  height: 60px;
  border-radius: var(--radius);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-surface2);
}

.ep-sidebar-post-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ep-sidebar-post-title {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}

.ep-sidebar-post-date {
  color: var(--color-text-dim);
}

.ep-sidebar-post:hover .ep-sidebar-post-title {
  color: var(--color-primary);
}

.ep-sidebar-post-date {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--color-text-dim);
  margin-top: 3px;
}

/* Tag Cloud */
.ep-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.ep-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-muted);
  padding: 4px 10px;
  border: 1px solid var(--color-border);
  border-radius: 100px;
  text-decoration: none;
  transition: all var(--transition);
  background: var(--color-surface);
}

.ep-tag:hover {
  color: var(--color-primary);
  border-color: rgba(0,212,255,0.3);
  background: rgba(0,212,255,0.06);
}

/* =========================================================
   CATEGORY PAGE HERO
   ========================================================= */

.ep-cat-hero {
  padding: var(--space-3xl) 0 var(--space-2xl);
  position: relative;
  border-bottom: 1px solid var(--color-border);
}

.ep-cat-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--hero-accent, rgba(0,212,255,0.05));
  pointer-events: none;
}

.ep-cat-hero-inner {
  position: relative;
  z-index: 1;
}

.ep-cat-hero-emoji {
  font-size: 3.5rem;
  margin-bottom: var(--space-md);
  display: block;
  filter: drop-shadow(0 0 20px rgba(255,255,255,0.2));
}

.ep-cat-hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-sm);
  color: var(--color-text-head);
}

.ep-cat-hero-tagline {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
  font-weight: 500;
}

.ep-cat-hero-count {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

/* =========================================================
   SINGLE POST
   ========================================================= */

.ep-single-hero {
  padding: var(--space-2xl) 0 var(--space-xl);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.ep-single-hero-inner {
  max-width: 760px;
}

.ep-single-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.ep-single-title {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
  color: #0F172A;
}

.ep-single-intro {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: var(--space-xl);
  max-width: 660px;
}

.ep-single-feat-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-xl);
  background: var(--color-surface2);
}

.ep-single-feat-img img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
}

/* Article Content */
.ep-content {
  max-width: 720px;
}

.ep-content h1,
.ep-content h2,
.ep-content h3,
.ep-content h4 {
  color: var(--color-text-head);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.ep-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-head);
  margin: var(--space-2xl) 0 var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-border);
  letter-spacing: -0.02em;
}

.ep-content h3 {
  font-size: 1.15rem;
  margin: var(--space-xl) 0 var(--space-sm);
  color: var(--color-text-sub);
}

.ep-content h4 {
  font-size: 1rem;
  margin: var(--space-lg) 0 var(--space-xs);
  color: var(--color-text-body);
}

.ep-content p {
  color: var(--color-text-body);
  line-height: 1.85;
  font-size: 1.025rem;
  margin-bottom: 1.4rem;
}

.ep-content a {
  color: var(--color-primary);
  border-bottom: 1px solid rgba(0,102,255,0.25);
  transition: all var(--transition);
  text-decoration: none;
}

.ep-content a:hover {
  border-bottom-color: var(--color-primary);
  color: var(--color-primary);
}

.ep-content blockquote {
  border-left: 4px solid var(--color-primary);
  margin: var(--space-xl) 0;
  padding: var(--space-md) var(--space-xl);
  background: var(--color-blue-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 1.05rem;
  font-style: italic;
  color: #1E293B;
}

.ep-content code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-blue-50);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--color-blue-600);
  border: 1px solid var(--color-blue-100);
}

.ep-content pre {
  background: #0F172A;
  border: 1px solid #1E293B;
  border-radius: var(--radius);
  padding: var(--space-lg);
  overflow-x: auto;
  margin: var(--space-xl) 0;
  box-shadow: var(--shadow-md);
}

.ep-content pre code {
  background: none;
  padding: 0;
  font-size: 0.875rem;
  color: #E2E8F0;
  border: none;
}

.ep-content ul,
.ep-content ol {
  color: #334155;
  padding-left: 1.5rem;
  margin-bottom: 1.4rem;
}

.ep-content li {
  margin-bottom: 0.5rem;
  line-height: 1.75;
}

.ep-content strong {
  color: var(--color-text-head);
  font-weight: 600;
}

.ep-content em {
  color: var(--color-text-muted);
}

.ep-content hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-2xl) 0;
}

.ep-content img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  margin: var(--space-xl) 0;
}


/* Data callout box */
.ep-data-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin: var(--space-xl) 0;
  position: relative;
}

.ep-data-box::before {
  content: '📊 DATA';
  position: absolute;
  top: -10px;
  left: var(--space-lg);
  background: var(--color-surface2);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  padding: 2px 10px;
  border: 1px solid var(--color-border);
  border-radius: 100px;
}

/* =========================================================
   CTA SECTION
   ========================================================= */

.ep-cta-section {
  background: linear-gradient(135deg, var(--color-surface) 0%, #0D1A30 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  margin: var(--space-2xl) 0;
}

.ep-cta-section::before {
  content: '';
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.ep-cta-section h3 {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
  position: relative;
}

.ep-cta-section p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  position: relative;
}

.ep-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  letter-spacing: 0.01em;
}

.ep-btn-primary {
  background: var(--grad-primary);
  color: #000;
}

.ep-btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: var(--glow-primary);
  color: #000;
}

.ep-btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.ep-btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* =========================================================
   FOUNDINAI CTA
   ========================================================= */

.ep-foundinai-cta {
  background: linear-gradient(135deg, #0A0F1E 0%, #0D1A2E 100%);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
  text-decoration: none;
  transition: all var(--transition);
}

.ep-foundinai-cta:hover {
  border-color: rgba(0,212,255,0.5);
  box-shadow: var(--glow-primary);
  transform: translateY(-2px);
}

.ep-foundinai-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.ep-foundinai-text h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}

.ep-foundinai-text p {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin: 0;
}

.ep-foundinai-arrow {
  margin-left: auto;
  font-size: 1.2rem;
  color: var(--color-primary);
  transition: transform var(--transition);
}

.ep-foundinai-cta:hover .ep-foundinai-arrow {
  transform: translateX(4px);
}

/* =========================================================
   PAGINATION
   ========================================================= */

.ep-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-2xl) 0;
}

.ep-page-num {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border2);
  transition: all var(--transition);
}

.ep-page-num:hover,
.ep-page-num.current {
  color: var(--color-primary);
  border-color: rgba(0,212,255,0.3);
  background: rgba(0,212,255,0.06);
}

/* =========================================================
   FOOTER
   ========================================================= */

#ep-footer {
  background: var(--color-dark-bg);
  border-top: 1px solid rgba(0,212,255,0.1);
  margin-top: var(--space-3xl);
}

.ep-footer-top {
  padding: var(--space-3xl) 0 var(--space-2xl);
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr;
  gap: var(--space-2xl);
}

@media (max-width: 900px) {
  .ep-footer-top { grid-template-columns: 1fr 1fr; }
  .ep-footer-top > *:first-child { grid-column: 1 / -1; }
}
@media (max-width: 580px) {
  .ep-footer-top { grid-template-columns: 1fr; }
}

.ep-footer-brand .ep-logo {
  margin-bottom: var(--space-md);
}

.ep-footer-tagline {
  font-size: 0.85rem;
  color: var(--color-dark-text-muted);
  line-height: 1.65;
  margin-bottom: var(--space-lg);
}

.ep-footer-social {
  display: flex;
  gap: var(--space-sm);
}

.ep-social-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.15);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--color-dark-text-muted);
  text-decoration: none;
  transition: all var(--transition);
}

.ep-social-btn:hover {
  border-color: rgba(255,255,255,0.4);
  color: var(--color-dark-text);
}

.ep-footer-col-title {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-dark-text-muted);
  margin-bottom: var(--space-md);
}

.ep-footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ep-footer-links li { margin: 0; }

.ep-footer-links a {
  font-size: 0.85rem;
  color: var(--color-dark-text-muted);
  text-decoration: none;
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

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

/* Footer Newsletter */
.ep-footer-nl input {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-dark-text);
  width: 100%;
  margin-bottom: var(--space-sm);
  transition: border-color var(--transition);
}

.ep-footer-nl input::placeholder { color: var(--color-dark-text-dim); }
.ep-footer-nl input:focus { outline: none; border-color: var(--color-cyan); }

.ep-footer-nl-btn {
  width: 100%;
  background: var(--grad-primary);
  color: #000;
  border: none;
  border-radius: var(--radius);
  padding: 11px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  transition: opacity var(--transition);
}

.ep-footer-nl-btn:hover { opacity: 0.9; }

.ep-footer-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.07);
}

.ep-footer-bottom {
  padding: var(--space-lg) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.ep-footer-copy {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-dark-text-dim);
}

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

.ep-footer-bottom-links a {
  font-size: 0.75rem;
  color: var(--color-dark-text-dim);
  text-decoration: none;
  transition: color var(--transition);
}

.ep-footer-bottom-links a:hover { color: var(--color-dark-text-muted); }

/* =========================================================
   UTILITIES
   ========================================================= */

.ep-divider {
  border: none;
  border-top: 1px solid var(--color-border2);
  margin: var(--space-2xl) 0;
}

.ep-no-posts {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  min-height: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.ep-no-posts-icon { font-size: 3rem; margin-bottom: var(--space-md); }
.ep-no-posts h2 { font-size: 1.3rem; color: var(--color-text); margin-bottom: 8px; }

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

/* Animations */
@keyframes ep-fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.ep-animate {
  animation: ep-fade-up 0.6s ease forwards;
}

.ep-animate-delay-1 { animation-delay: 0.1s; }
.ep-animate-delay-2 { animation-delay: 0.2s; }
.ep-animate-delay-3 { animation-delay: 0.3s; }