@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Merriweather:ital,wght@0,300;0,400;0,700;1,400&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* ===================================================
   LOGO — PROMINENT IMAGE WITH FULLNAME BELOW
   =================================================== */
.header-logo-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}
.header-logo-main {
  height: 108px;
  width: auto;
  object-fit: contain;
  display: block;
}
.header-brand-fullname {
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
  max-width: 340px;
  white-space: nowrap;
}
.header-brand-publisher {
  font-size: 10.5px;
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.03em;
}
/* keep legacy classes inert */
.brand-abbr, .brand-name, .brand-tagline, .header-brand-text { display: none; }

/* Top-bar separator */
.top-bar-sep { opacity: 0.3; }

/* ===================================================
   HERO EYEBROW + STATS
   =================================================== */
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--r-full);
  padding: 6px 16px;
  font-size: 12px;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  margin-bottom: 20px;
  backdrop-filter: blur(6px);
}
.hero-eyebrow svg { color: var(--accent); }

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.hero-stat { display: flex; flex-direction: column; gap: 2px; }
.hero-stat-val {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.hero-stat-lbl {
  font-size: 11px;
  font-weight: 600;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.hero-stat-div {
  width: 1px;
  height: 36px;
  background: rgba(255,255,255,0.15);
}

/* Hero outline button */
.btn-hero-outline {
  border: 1.5px solid rgba(255,255,255,0.35);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13.5px;
  padding: 13px 28px;
  border-radius: var(--r-md);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.05em;
  transition: var(--t);
}
.btn-hero-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255,255,255,0.05);
}

/* ===================================================
   SECTION EYEBROW
   =================================================== */
.section-eyebrow {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 8px;
}

/* ===================================================
   ABOUT BANNER IMAGE WITH OVERLAY
   =================================================== */
.about-banner-wrap {
  position: relative;
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  height: 380px;
}
.about-banner-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}
.about-banner-wrap:hover .about-banner-img {
  transform: scale(1.03);
}
.about-banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(13, 33, 55, 0.92) 0%,
    rgba(13, 33, 55, 0.4) 50%,
    rgba(13, 33, 55, 0.05) 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
}
.about-banner-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--primary);
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 800;
  padding: 6px 14px;
  border-radius: var(--r-full);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
  width: fit-content;
}
.about-banner-stat-row {
  display: flex;
  gap: 24px;
}
.about-banner-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.about-banner-stat strong {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.about-banner-stat span {
  font-size: 11px;
  font-weight: 600;
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===================================================
   ABOUT ISSN CHIPS
   =================================================== */
.about-issn-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 16px 0 24px;
}
.about-issn-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--border-light);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 6px 14px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-dark);
}
.about-issn-chip svg { color: var(--accent); }

/* ===================================================
   FOOTER — PUBLISHER CARD
   =================================================== */
.footer-brand-col { display: flex; flex-direction: column; gap: 10px; }
.footer-logo-row { margin-bottom: 4px; }
.footer-logo-img { height: 44px; width: auto; object-fit: contain; filter: brightness(0) invert(1); opacity: 0.85; }
.footer-brand-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 4px;
}
.footer-publisher-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 4px;
}
.footer-publisher-name {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 4px;
}
.footer-publisher-detail {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 12.5px;
  color: rgba(255,255,255,0.55);
  line-height: 1.5;
}
.footer-publisher-detail svg { flex-shrink: 0; margin-top: 2px; color: var(--accent); }
.footer-publisher-detail a { color: var(--accent); }
.footer-publisher-detail a:hover { text-decoration: underline; }

/* Footer indexing row */
.footer-index-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid rgba(255,255,255,0.07);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  flex-wrap: wrap;
}
.footer-index-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.4);
  white-space: nowrap;
}
.footer-index-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.footer-index-chips span {
  padding: 3px 10px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--r-full);
  font-size: 11px;
  font-weight: 600;
  color: rgba(255,255,255,0.45);
}

/* ===================================================
   CONTACT PUBLISHER BADGE
   =================================================== */
.contact-publisher-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  padding: 10px 14px;
  border-radius: var(--r-md);
  margin-bottom: 20px;
}
.contact-publisher-badge svg { color: var(--accent); }

/* ===================================================
   DESIGN SYSTEM - PREMIUM HSL VARIANT
   =================================================== */
:root {
  /* HSL Palette */
  --primary-h: 213;
  --primary-s: 62%;
  --primary-l: 14%; /* #0d2137 */
  
  --primary:        hsl(var(--primary-h), var(--primary-s), var(--primary-l));
  --primary-mid:    hsl(var(--primary-h), var(--primary-s), 20%);
  --primary-light:  hsl(var(--primary-h), var(--primary-s), 28%);
  
  --secondary:      #1a3a60;
  --accent:         #f59e0b; /* Amber 500 */
  --accent-rgb:     245, 158, 11;
  --accent-light:   #fffbeb;

  /* Neutrals */
  --bg:             #f8fafc; /* Slate 50 */
  --bg-white:       #ffffff;
  --card-bg:        #ffffff;
  --border:         #e2e8f0; /* Slate 200 */
  --border-light:   #f1f5f9; /* Slate 100 */

  /* Text colors */
  --text-dark:      #0f172a; /* Slate 900 */
  --text-body:      #334155; /* Slate 700 */
  --text-muted:     #64748b; /* Slate 500 */
  --text-light:     #94a3b8; /* Slate 400 */

  /* Typography */
  --font-sans:      'Inter', system-ui, -apple-system, sans-serif;
  --font-display:   'Outfit', var(--font-sans);
  --font-serif:     'Merriweather', Georgia, serif;

  /* Spacings */
  --container:      1200px;
  
  /* Radii */
  --r-sm:           4px;
  --r-md:           8px;
  --r-lg:           12px;
  --r-xl:           20px;
  --r-full:         9999px;

  /* Shadow layers */
  --shadow-sm:      0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-md:      0 4px 6px -1px rgba(15, 23, 42, 0.05), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg:      0 10px 15px -3px rgba(15, 23, 42, 0.05), 0 4px 6px -4px rgba(15, 23, 42, 0.05);
  --shadow-xl:      0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.08);
  --shadow-glow:    0 0 20px rgba(245, 158, 11, 0.15);

  /* Transitions */
  --t:              0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --t-fast:         0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===================================================
   SYSTEM RESET & BASE RULES
   =================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  overflow-x: hidden;
  overflow-x: clip;
}
html { scroll-behavior: smooth; -webkit-tap-highlight-color: transparent; }
body {
  font-family: var(--font-sans);
  font-size: 15px;
  color: var(--text-body);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow-wrap: break-word;
}
a { color: inherit; text-decoration: none; transition: var(--t-fast); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--text-dark);
  font-weight: 700;
  line-height: 1.2;
}

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }

/* ===================================================
   TOP BAR
   =================================================== */
.top-bar {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-weight: 500;
}
.top-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.top-bar-left, .top-bar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}
.top-bar-issn {
  display: flex;
  align-items: center;
  gap: 8px;
}
.top-bar-issn span {
  display: flex;
  align-items: center;
  gap: 4px;
}
.top-bar-issn strong {
  color: var(--accent);
  font-weight: 600;
}
.top-bar-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.top-bar-actions a {
  display: flex;
  align-items: center;
  gap: 5px;
}
.top-bar-actions a:hover {
  color: #fff;
}
.top-bar-social {
  display: flex;
  gap: 12px;
}
.top-bar-social a {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
}
.top-bar-social a:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255,255,255,0.05);
}

/* ===================================================
   HEADER & NAVIGATION
   =================================================== */
.site-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 200;
  transition: var(--t-fast);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  gap: 20px;
}
.header-brand {
  display: flex;
  align-items: flex-start;
  gap: 0;
  flex-shrink: 0;
}
.header-logo-svg {
  width: 46px;
  height: 46px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 12px rgba(13, 33, 55, 0.15);
}
.header-logo-svg svg {
  width: 24px;
  height: 24px;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.02em;
}
.brand-tagline {
  font-size: 10.5px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  margin-top: 2px;
}

/* Navigation items */
.main-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-close-btn {
  display: none;
}
.main-nav a {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dark);
  padding: 8px 14px;
  border-radius: var(--r-sm);
  letter-spacing: 0.02em;
  position: relative;
}
.main-nav a:hover, .main-nav a.active {
  color: var(--primary);
  background: var(--border-light);
}
.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: 0; left: 14px; right: 14px;
  height: 2.5px;
  background: var(--accent);
  border-radius: 1px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.btn-search-icon {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  transition: var(--t-fast);
}
.btn-search-icon:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--border-light);
}
.mobile-toggle {
  display: none;
  cursor: pointer;
  color: var(--text-dark);
  font-size: 24px;
  padding: 4px;
}

/* ===================================================
   HERO BANNER
   =================================================== */
.hero-section {
  background:
    linear-gradient(135deg, rgba(10,25,45,0.88) 0%, rgba(15,40,70,0.72) 100%),
    url('../images/hero_banner.png') no-repeat center center / cover;
  color: #fff;
  padding: 90px 0 130px;
  position: relative;
}
.hero-section::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 90px;
  background: linear-gradient(to top, var(--bg), transparent);
  pointer-events: none;
}

/* Two-column layout */
.hero-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

/* Left column */
.hero-text { display: flex; flex-direction: column; gap: 0; }

.hero-heading {
  font-family: var(--font-display);
  font-size: 3.2rem;
  font-weight: 800;
  color: #fff !important;
  line-height: 1.15;
  margin: 16px 0 20px;
  letter-spacing: -0.02em;
}
.hero-heading-accent {
  color: #fbbf24 !important;
  display: inline;
  -webkit-text-fill-color: #fbbf24;
}
.hero-para {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.82) !important;
  line-height: 1.7;
  margin-bottom: 32px;
  font-weight: 400;
  max-width: 600px;
}
.hero-para strong { color: rgba(255,255,255,0.98); font-weight: 700; }

/* CTA row */
.hero-cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 0;
}
.btn-hero-primary {
  background: linear-gradient(to right, #fbbf24, #f59e0b);
  color: #0d2137;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 13px;
  padding: 13px 28px;
  border-radius: var(--r-md);
  box-shadow: 0 4px 16px rgba(245,158,11,0.4);
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--t);
}
.btn-hero-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(245,158,11,0.55);
  color: #0d2137;
}

/* Stats row */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.12);
  flex-wrap: wrap;
}
.hero-stat { display: flex; flex-direction: column; gap: 3px; }
.hero-stat-val {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  color: #fbbf24;
  line-height: 1;
}
.hero-stat-lbl {
  font-size: 10.5px;
  font-weight: 600;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.hero-stat-div {
  width: 1px;
  height: 32px;
  background: rgba(255,255,255,0.15);
  flex-shrink: 0;
}

/* Hero outline button */
.btn-hero-outline {
  border: 1.5px solid rgba(255,255,255,0.32);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  padding: 13px 26px;
  border-radius: var(--r-md);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.05em;
  transition: var(--t);
}
.btn-hero-outline:hover {
  border-color: #fbbf24;
  color: #fbbf24;
  background: rgba(255,255,255,0.04);
}

/* Right column — floating info card */
.hero-right { display: flex; justify-content: center; }
.hero-info-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-radius: 18px;
  padding: 28px 24px;
  width: 100%;
  box-shadow: 0 24px 48px rgba(0,0,0,0.25);
}
.hero-info-card-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 16px;
}
.hero-info-divider {
  height: 1px;
  background: rgba(255,255,255,0.12);
  margin: 14px 0;
}
.hero-info-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  color: rgba(255,255,255,0.65);
  margin-bottom: 10px;
}
.hero-info-row svg { color: #fbbf24; flex-shrink: 0; }
.hero-info-row strong { color: #fff; }
.hero-info-publisher { }
.hero-info-pub-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #fbbf24;
  margin-bottom: 6px;
}
.hero-info-pub-name {
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 3px;
}
.hero-info-pub-loc {
  font-size: 11.5px;
  color: rgba(255,255,255,0.5);
}

/* ===================================================
   FEATURE OVERLAY CARDS
   =================================================== */
.features-strip {
  margin-top: -70px;
  position: relative;
  z-index: 10;
  margin-bottom: 48px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: rgba(226, 232, 240, 0.8);
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(8px);
}
.feature-item {
  background: rgba(255, 255, 255, 0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 30px 20px;
  text-align: center;
  transition: var(--t);
}
.feature-item:hover {
  background: #fff;
  transform: translateY(-4px);
}
.feature-icon {
  width: 46px; height: 46px;
  background: rgba(245, 158, 11, 0.1);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
}
.feature-icon svg { width: 22px; height: 22px; }
.feature-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-dark);
}
.feature-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.45;
}

/* ===================================================
   ABOUT THE JOURNAL
   =================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-text { }
.about-heading {
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--text-dark);
  margin: 10px 0 20px;
  position: relative;
  padding-bottom: 14px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.about-heading::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 48px; height: 4px;
  background: var(--accent);
  border-radius: 2px;
}
.about-text p {
  color: var(--text-body);
  line-height: 1.75;
  margin-bottom: 18px;
  font-size: 0.97rem;
}
.btn-read-more {
  background: var(--primary);
  color: white;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  padding: 12px 24px;
  border-radius: var(--r-md);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-md);
  transition: var(--t);
}
.btn-read-more:hover {
  background: var(--accent);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(245,158,11,0.3);
}

/* Issue abbr box */
.issue-abbr-box {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

/* Why publish header */
.why-publish-header {
  text-align: center;
  margin-bottom: 48px;
}
.why-publish-header h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  margin: 10px 0 14px;
}
.why-publish-header p {
  color: rgba(255,255,255,0.65);
  font-size: 0.97rem;
  max-width: 520px;
  margin: 0 auto;
}

/* btn-view-all */
.btn-view-all {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--primary);
  border: 1.5px solid var(--primary);
  padding: 9px 20px;
  border-radius: var(--r-md);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--t);
  align-self: flex-end;
  white-space: nowrap;
}
.btn-view-all:hover {
  background: var(--primary);
  color: #fff;
}

/* article-card-type badge */
.article-card-type {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  background: rgba(255,255,255,0.12);
  padding: 3px 10px;
  border-radius: var(--r-full);
  position: absolute;
  bottom: 12px;
  right: 12px;
}
.article-card-banner { position: relative; }

.about-text h2 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 14px;
  letter-spacing: -0.02em;
}
.about-text h2::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 48px; height: 4px;
  background: var(--accent);
  border-radius: 2px;
}
.about-text p {
  color: var(--text-body);
  line-height: 1.75;
  margin-bottom: 20px;
  font-size: 1rem;
}
.btn-read-more {
  background: var(--primary);
  color: white;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  padding: 12px 24px;
  border-radius: var(--r-md);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-md);
}
.btn-read-more:hover {
  background: var(--accent);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
}

.about-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #fff 0%, var(--border-light) 100%);
  border-radius: var(--r-xl);
  padding: 44px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

/* Re-engineered CSS 3D Stack Mockup */
.book-stack-mockup {
  position: relative;
  width: 250px;
  height: 330px;
  perspective: 1200px;
}
.book-shadow-3d {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #152e4d 0%, #0d2137 100%);
  border-radius: 3px 14px 14px 3px;
  padding: 30px 24px;
  position: relative;
  transform: rotateY(-14deg) rotateX(6deg) rotateZ(-2deg);
  transform-style: preserve-3d;
  box-shadow: 
    -1px 1px 1px rgba(255,255,255,0.1),
    -6px 0 0 #050b12,
    -12px 6px 1px rgba(0,0,0,0.1),
    -20px 20px 30px rgba(13,33,55,0.3);
  display: flex;
  flex-direction: column;
  color: white;
}
/* Pages overlay mock */
.book-shadow-3d::after {
  content: '';
  position: absolute;
  top: 4px; bottom: 4px; right: -4px;
  width: 4px;
  background: linear-gradient(to right, #ccc, #fff, #aaa);
  border-radius: 0 4px 4px 0;
  box-shadow: inset 1px 0 0 #fff;
}
.book-shadow-3d .book-logo-box {
  width: 44px; height: 44px;
  border: 2px solid rgba(245, 158, 11, 0.6);
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
  color: var(--accent);
  background: rgba(245, 158, 11, 0.08);
  box-shadow: var(--shadow-glow);
}
.book-code {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 10px;
}
.book-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  line-height: 1.3;
  color: #fff;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}
.book-footer-txt {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.4);
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* ===================================================
   CURRENT ISSUE SECTION
   =================================================== */
.current-issue-section {
  background: #f8fafc;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 0;
}
.current-issue-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 48px;
}
.issue-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 40px 28px;
  text-align: center;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: var(--t);
}
.issue-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.issue-cover-graphic {
  width: 140px;
  height: 190px;
  background: linear-gradient(135deg, #1c385a, #0d2137);
  border-radius: 3px 10px 10px 3px;
  box-shadow: 
    -4px 0 0 #050b12,
    -8px 8px 16px rgba(13,33,55,0.2);
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: white;
  padding: 12px;
  position: relative;
}
.issue-cover-graphic::after {
  content: '';
  position: absolute;
  top: 3px; bottom: 3px; right: -3px;
  width: 3px;
  background: #fff;
  opacity: 0.7;
}
.issue-vol-num {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
}
.issue-title-num {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  margin-top: 2px;
}
.issue-date-lbl {
  font-size: 11px;
  color: rgba(255,255,255,0.5);
  margin-top: 4px;
}
.issue-card h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--text-dark);
  margin-bottom: 4px;
  font-weight: 700;
}
.issue-card p {
  font-size: 13.5px;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.btn-view-issue {
  background: var(--primary);
  color: white;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  padding: 10px 28px;
  border-radius: var(--r-md);
  box-shadow: var(--shadow-sm);
}
.btn-view-issue:hover {
  background: var(--accent);
  color: var(--primary);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
}

/* Articles List in current issue */
.current-issue-list-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--border);
  padding-bottom: 12px;
}
.current-issue-list-header h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-dark);
}
.current-issue-list-header a {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
}
.current-issue-list-header a:hover {
  color: var(--primary);
}

.article-row-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: var(--t-fast);
}
.article-row-item:last-child {
  border-bottom: none;
}
.article-row-item:hover {
  background: rgba(245, 158, 11, 0.02);
  padding-left: 8px;
}
.article-row-dot {
  width: 7px; height: 7px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 8px;
}
.article-row-content {
  flex: 1;
}
.article-row-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.5;
  display: block;
  margin-bottom: 6px;
}
.article-row-title:hover {
  color: var(--accent);
}
.article-row-authors {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}
.article-row-pages {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text-muted);
  font-family: monospace;
  background: var(--border-light);
  padding: 3px 8px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
}

/* ===================================================
   WHY PUBLISH WITH US
   =================================================== */
.why-publish-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-mid) 100%);
  color: white;
  padding: 80px 0;
  text-align: center;
}
.why-publish-section h2 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}
.why-publish-section p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.why-publish-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}
.why-publish-card {
  padding: 24px 12px;
  border-radius: var(--r-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: var(--t);
  background: rgba(255, 255, 255, 0.02);
}
.why-publish-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent);
  transform: translateY(-4px);
}
.why-publish-icon {
  width: 50px; height: 50px;
  border: 1.5px solid rgba(245, 158, 11, 0.4);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
  color: var(--accent);
  background: rgba(245, 158, 11, 0.08);
  box-shadow: var(--shadow-glow);
}
.why-publish-icon svg { width: 22px; height: 22px; }
.why-publish-title {
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}
.why-publish-desc {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.45;
}

/* ===================================================
   LATEST ARTICLES GRID
   =================================================== */
.latest-articles-section {
  padding: 80px 0;
}
.latest-articles-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 32px;
}
.latest-articles-header h2 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: -0.02em;
}
.latest-articles-header a {
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
}
.latest-articles-header a:hover {
  color: var(--primary);
}

.latest-articles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.article-card-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--t);
}
.article-card-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(245, 158, 11, 0.3);
}
.article-card-banner {
  height: 130px;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.article-card-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.08) 1px, transparent 1px);
  background-size: 16px 16px;
}
.article-card-icon-box {
  width: 48px; height: 48px;
  border: 1.5px solid rgba(245, 158, 11, 0.5);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  z-index: 2;
  background: rgba(245, 158, 11, 0.1);
  box-shadow: var(--shadow-glow);
}
.article-card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.article-card-category {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 800;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.article-card-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.45;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  height: 60px;
}
.article-card-title:hover {
  color: var(--accent);
}
.article-card-authors {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-bottom: 16px;
  font-weight: 500;
}
.article-card-meta {
  font-size: 12px;
  color: var(--text-light);
  border-top: 1px solid var(--border-light);
  padding-top: 12px;
  margin-top: auto;
  font-weight: 500;
}
.btn-card-read {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 12px;
  align-self: flex-start;
}
.btn-card-read:hover {
  color: var(--primary);
}

/* ===================================================
   STANDARD INNER PAGE LAYOUTS
   =================================================== */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  padding: 56px 0;
  color: white;
}
.page-hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.page-hero-label {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: 2.25rem;
  color: #fff;
  font-weight: 800;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: rgba(255,255,255,0.6);
}
.breadcrumb a { color: rgba(255,255,255,0.6); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { color: rgba(255,255,255,0.3); }
.breadcrumb .current { color: var(--accent); font-weight: 600; }

.layout-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 310px;
  gap: 40px;
  margin: 48px 0 80px;
  align-items: start;
}
.content-card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 36px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.card-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--text-dark);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
  position: relative;
  font-weight: 700;
}
.card-title::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 40px; height: 3px;
  background: var(--accent);
  border-radius: 1px;
}
.card-body { font-size: 14.5px; line-height: 1.7; color: var(--text-body); }
.card-body p { margin-bottom: 16px; }
.card-body p:last-child { margin-bottom: 0; }
.card-body ul { padding-left: 20px; list-style: disc; margin-bottom: 16px; }
.card-body ul li { margin-bottom: 8px; }

/* Scope items grid */
.scope-items-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 20px;
}
.scope-item {
  display: flex; gap: 10px; padding: 12px 16px;
  border: 1px solid var(--border); border-radius: var(--r-md);
  background: var(--bg); font-size: 13.5px; align-items: center;
}
.scope-item svg { width: 16px; height: 16px; color: var(--accent); flex-shrink: 0; }

/* Guidelines Table */
.guidelines-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  margin: 20px 0;
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.guidelines-table th { background: var(--primary); color: white; padding: 12px 16px; text-align: left; font-family: var(--font-display); font-weight: 700; }
.guidelines-table td { padding: 12px 16px; border-bottom: 1px solid var(--border); }

/* ===================================================
   TOC LIST
   =================================================== */
.toc-list { display: flex; flex-direction: column; }
.toc-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-light);
}
.toc-item:last-child { border-bottom: none; }
.toc-num { font-size: 11px; font-weight: 700; color: var(--text-light); min-width: 24px; margin-top: 3px; }
.toc-dot { width: 7px; height: 7px; background: var(--accent); border-radius: 50%; flex-shrink: 0; margin-top: 8px; }
.toc-content { flex: 1; }
.toc-title { font-size: 15px; font-weight: 600; color: var(--text-dark); line-height: 1.45; display: block; margin-bottom: 4px; }
.toc-title:hover { color: var(--accent); }
.toc-authors { font-size: 13px; color: var(--text-muted); }
.toc-meta { display: flex; gap: 16px; font-size: 12px; color: var(--text-muted); margin-top: 8px; align-items: center; }
.toc-badge {
  font-family: var(--font-display);
  font-size: 10px; font-weight: 700; padding: 2px 8px; border-radius: var(--r-full);
}
.badge-oa { background: var(--accent-light); color: var(--accent); border: 1px solid rgba(245, 158, 11, 0.25); }
.toc-actions { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; }
.btn-pdf {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--font-display);
  font-size: 11.5px; font-weight: 700; color: #dc2626;
  padding: 4px 10px; border: 1px solid rgba(220,38,38,0.25);
  background: rgba(220,38,38,0.03); border-radius: var(--r-sm);
}
.btn-pdf:hover { background: #dc2626; color: white; }

/* ===================================================
   SIDEBAR WIDGETS
   =================================================== */
.sidebar { display: flex; flex-direction: column; gap: 24px; }
.widget {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.widget-title {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dark);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
  position: relative;
}
.widget-title::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 28px; height: 2px;
  background: var(--accent);
}
.info-rows { display: flex; flex-direction: column; gap: 10px; }
.info-row { display: flex; justify-content: space-between; font-size: 13px; }
.info-label { color: var(--text-muted); font-weight: 500; }
.info-val { font-weight: 600; color: var(--text-dark); }
.metrics-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.metric-box { background: var(--bg); border: 1px solid var(--border); border-radius: var(--r-md); padding: 14px 10px; text-align: center; }
.metric-val { font-family: var(--font-display); font-size: 1.55rem; font-weight: 700; color: var(--primary); }
.metric-lbl { font-size: 10px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; margin-top: 2px; }

.editor-profile { display: flex; flex-direction: column; align-items: center; text-align: center; }
.editor-avatar {
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--accent); color: var(--primary);
  font-weight: 700; display: flex; align-items: center; justify-content: center;
  margin-bottom: 10px; font-size: 15px;
}
.editor-name { font-size: 14px; font-weight: 700; color: var(--text-dark); }
.editor-aff { font-size: 12px; color: var(--text-muted); margin-top: 3px; line-height: 1.4; }

.indexing-chips { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.indexing-chip {
  border: 1px solid var(--border); border-radius: var(--r-sm);
  height: 38px; display: flex; align-items: center; justify-content: center;
  font-size: 11.5px; font-weight: 600; color: var(--text-muted); background: var(--bg);
}

.search-widget-form { display: flex; border: 1.5px solid var(--border); border-radius: var(--r-md); overflow: hidden; background: var(--bg); }
.search-widget-form input { flex: 1; padding: 10px 14px; font-size: 13px; }
.search-submit { background: var(--primary); color: white; padding: 0 16px; cursor: pointer; display: flex; align-items: center; }
.search-submit svg { width: 15px; height: 15px; }

/* Announcement Box */
.announcement-box {
  background: var(--accent-light);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--r-xl) var(--r-xl) 0;
  padding: 20px 24px;
  margin-bottom: 24px;
}
.announcement-box h4 { display: flex; align-items: center; gap: 8px; font-size: 14.5px; font-weight: 700; margin-bottom: 8px; }
.announcement-box h4 svg { width: 18px; height: 18px; color: var(--accent); }
.announcement-box p { font-size: 13.5px; color: var(--text-muted); line-height: 1.6; }

/* ===================================================
   EDITORIAL BOARD & BOARD MEMBER CARDS
   =================================================== */
.board-section-title { font-family: var(--font-display); font-size: 1.25rem; color: var(--text-dark); margin: 28px 0 16px; padding-bottom: 8px; border-bottom: 2px solid var(--border); position: relative; font-weight: 700; }
.board-section-title::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 32px; height: 2.5px; background: var(--accent); }
.board-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.board-member-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 16px 20px; display: flex; gap: 16px; align-items: center; transition: var(--t-fast); }
.board-member-card:hover { background: #fff; border-color: var(--accent); box-shadow: var(--shadow-sm); }
.board-info { flex: 1; }
.board-name { font-size: 14px; font-weight: 700; color: var(--text-dark); }
.board-role { font-size: 10px; font-weight: 700; text-transform: uppercase; color: var(--accent); margin: 2px 0; display: block; letter-spacing: 0.05em; }
.board-aff { font-size: 12.5px; color: var(--text-muted); line-height: 1.4; }
.board-country { font-size: 11px; font-weight: 600; color: var(--text-light); margin-top: 4px; }
.board-email { font-size: 12px; color: var(--accent); margin-top: 4px; display: inline-flex; align-items: center; gap: 4px; }
.board-email svg { width: 12px; height: 12px; }

/* ===================================================
   ARCHIVES ACCORDIONS
   =================================================== */
.archive-volume { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden; margin-bottom: 16px; box-shadow: var(--shadow-sm); }
.archive-vol-header { padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; user-select: none; }
.archive-vol-header:hover { background: var(--border-light); }
.archive-vol-title { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; display: flex; align-items: center; gap: 10px; color: var(--text-dark); }
.archive-vol-title svg { width: 18px; height: 18px; color: var(--accent); }
.archive-vol-arrow { width: 16px; height: 16px; transition: var(--t-fast); color: var(--text-muted); }
.archive-volume.active .archive-vol-arrow { transform: rotate(180deg); color: var(--accent); }
.archive-vol-content { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.archive-volume.active .archive-vol-content { max-height: 600px; border-top: 1px solid var(--border); }
.archive-issue-list { padding: 16px; display: flex; flex-direction: column; gap: 10px; }
.archive-issue-row { display: flex; align-items: center; justify-content: space-between; padding: 10px 16px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--r-md); }
.archive-issue-name { font-size: 14px; font-weight: 600; color: var(--text-dark); }
.archive-issue-date { font-size: 12px; color: var(--text-muted); }
.btn-view-sm { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; font-weight: 700; color: var(--accent); padding: 5px 12px; border: 1.5px solid rgba(245,158,11,0.25); border-radius: var(--r-md); }
.btn-view-sm:hover { background: var(--accent); color: var(--primary); }

/* ===================================================
   ARTICLE DETAIL PAGE
   =================================================== */
.article-detail-header { margin-bottom: 24px; }
.article-detail-title { font-family: var(--font-display); font-size: 1.75rem; font-weight: 800; line-height: 1.35; color: var(--text-dark); margin-bottom: 16px; letter-spacing: -0.01em; }
.article-detail-authors { font-size: 14.5px; font-weight: 600; color: var(--text-body); margin-bottom: 6px; }
.article-detail-affiliations { font-size: 13px; color: var(--text-muted); border-left: 4px solid var(--accent); padding-left: 12px; margin-bottom: 24px; display: flex; flex-direction: column; gap: 3px; }
.article-meta-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 18px; margin-bottom: 24px; }
.article-meta-lbl { font-size: 10px; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700; color: var(--text-muted); }
.article-meta-val { font-size: 13.5px; font-weight: 600; color: var(--text-dark); margin-top: 3px; }
.article-cta-row { display: flex; gap: 12px; margin-bottom: 28px; }
.btn-download { display: inline-flex; align-items: center; gap: 8px; background: var(--primary); color: white; font-family: var(--font-display); font-weight: 700; font-size: 13.5px; padding: 12px 22px; border-radius: var(--r-md); box-shadow: var(--shadow-sm); }
.btn-download:hover { background: var(--accent); color: var(--primary); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-download svg { width: 18px; height: 18px; }
.btn-read-online { display: inline-flex; align-items: center; gap: 8px; border: 1.5px solid var(--border); color: var(--text-body); font-family: var(--font-display); font-weight: 600; font-size: 13.5px; padding: 11px 22px; border-radius: var(--r-md); }
.btn-read-online:hover { border-color: var(--accent); color: var(--accent); }
.btn-read-online svg { width: 18px; height: 18px; }
.abstract-box { margin-bottom: 28px; }
.abstract-label { font-family: var(--font-display); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--accent); margin-bottom: 10px; }
.abstract-text { font-size: 14.5px; line-height: 1.75; color: var(--text-body); text-align: justify; }
.keywords-line { font-size: 13px; margin-top: 18px; padding-top: 12px; border-top: 1px dashed var(--border); }

/* Citation tabs */
.citation-widget { margin-top: 12px; }
.citation-tabs { display: flex; gap: 6px; margin-bottom: 12px; }
.cite-tab-btn { font-family: var(--font-display); font-size: 12px; font-weight: 600; color: var(--text-muted); padding: 5px 12px; border-radius: var(--r-sm); border: 1px solid var(--border); cursor: pointer; }
.cite-tab-btn.active { background: var(--accent); color: var(--primary); border-color: var(--accent); }
.citation-content-box { background: var(--bg); border: 1px solid var(--border); border-radius: var(--r-md); padding: 16px; font-size: 13.5px; line-height: 1.6; }
.citation-box { display: none; }
.citation-box.active { display: block; }
.btn-copy { display: inline-flex; align-items: center; gap: 4px; font-family: var(--font-display); font-size: 12px; font-weight: 700; color: var(--accent); margin-top: 8px; cursor: pointer; }

/* ===================================================
   CONTACT INFO & FORM
   =================================================== */
.contact-grid-2 { display: grid; grid-template-columns: 1fr 1.25fr; gap: 32px; }
.contact-info-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--r-xl); padding: 28px; }
.contact-item { display: flex; gap: 14px; margin-bottom: 20px; }
.contact-icon-box { width: 38px; height: 38px; background: rgba(245,158,11,0.1); border-radius: var(--r-md); display: flex; align-items: center; justify-content: center; color: var(--accent); flex-shrink: 0; }
.contact-icon-box svg { width: 18px; height: 18px; }
.contact-text-lbl { font-size: 10.5px; font-weight: 700; text-transform: uppercase; color: var(--text-muted); }
.contact-text-val { font-size: 14px; font-weight: 600; color: var(--text-dark); margin-top: 2px; }
.contact-form-card { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--r-xl); padding: 32px; }
.form-grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 700; color: var(--text-body); margin-bottom: 6px; }
.form-control { width: 100%; padding: 10px 14px; border: 1.5px solid var(--border); border-radius: var(--r-md); font-size: 13.5px; background: var(--bg); }
.form-control:focus { border-color: var(--accent); background: white; box-shadow: 0 0 0 3px rgba(245,158,11,0.15); }
.btn-form-submit { display: inline-flex; align-items: center; gap: 6px; background: var(--primary); color: white; font-family: var(--font-display); font-weight: 700; font-size: 13.5px; padding: 12px 28px; border-radius: var(--r-md); cursor: pointer; }
.btn-form-submit:hover { background: var(--accent); color: var(--primary); }

/* ===================================================
   FOOTER
   =================================================== */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.65);
  padding: 64px 0 0;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1.25fr;
  gap: 36px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-col-logo { display: flex; align-items: center; gap: 10px; }
.footer-logo-box {
  width: 40px; height: 40px;
  background: rgba(255, 255, 255, 0.05);
  border: 1.5px solid rgba(245, 158, 11, 0.4);
  border-radius: var(--r-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
}
.footer-logo-box svg { width: 20px; height: 20px; }
.footer-brand-title { font-family: var(--font-display); font-size: 1rem; font-weight: 800; color: #fff; letter-spacing: -0.01em; }
.footer-desc { font-size: 13px; line-height: 1.6; color: rgba(255, 255, 255, 0.45); }
.footer-col-title { font-family: var(--font-display); font-size: 12.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: #fff; margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; padding-left: 0; }
.footer-links a { font-size: 13px; color: rgba(255, 255, 255, 0.5); }
.footer-links a:hover { color: var(--accent); }
.footer-social { display: flex; gap: 8px; }
.footer-social-link {
  width: 32px; height: 32px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; color: rgba(255, 255, 255, 0.5);
}
.footer-social-link:hover { border-color: var(--accent); color: var(--accent); background: rgba(255,255,255,0.05); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 18px 0; border-top: 1px solid rgba(255,255,255,0.05); }

/* ===================================================
   SCROLL TO TOP BUTTON
   =================================================== */
#scroll-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(13,33,55,0.28);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s;
  z-index: 999;
  pointer-events: none;
}
#scroll-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
#scroll-top:hover {
  background: var(--accent);
  color: var(--primary);
}
#scroll-top svg {
  width: 18px;
  height: 18px;
  stroke-width: 2.5;
}

/* ===================================================
   RESPONSIVE — TABLET (max 1024px)
   =================================================== */
@media (max-width: 1024px) {
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .hero-right { display: none; }
  .hero-heading { font-size: 2.6rem; }
  .hero-section { padding: 70px 0 110px; }

  .layout-with-sidebar { grid-template-columns: 1fr; }
  .sidebar { order: -1; }

  .about-grid { grid-template-columns: 1fr; gap: 36px; }
  .about-banner-wrap { height: 300px; }

  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .latest-articles-grid { grid-template-columns: repeat(2, 1fr); }
  .why-publish-grid { grid-template-columns: repeat(3, 1fr); }
  .features-grid { grid-template-columns: repeat(3, 1fr); }
  .current-issue-grid { grid-template-columns: 1fr; }

  .header-logo-main { height: 80px; }
}

/* ===================================================
   RESPONSIVE — MOBILE (max 768px)
   =================================================== */
@media (max-width: 768px) {
  /* ── Top bar ── */
  .top-bar { display: none; }

  /* ── Header ── */
  .site-header {
    z-index: 300;
  }
  .header-inner {
    padding: 10px 0;
    gap: 12px;
  }
  .header-logo-main { height: 64px; }
  .header-brand-fullname { display: none; }
  .header-brand-publisher { display: none; }

  /* ── Hamburger button ── */
  .mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border: 1.5px solid var(--border);
    border-radius: var(--r-md);
    background: transparent;
    cursor: pointer;
    flex-shrink: 0;
    z-index: 350;
    position: relative;
    transition: border-color 0.2s, background 0.2s;
  }
  .mobile-toggle:hover,
  .mobile-toggle.open {
    border-color: var(--primary);
    background: var(--border-light);
  }
  .mobile-toggle svg {
    width: 20px;
    height: 20px;
    stroke: var(--text-dark);
  }

  /* ── Mobile nav drawer ── */
  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(300px, 85vw);
    height: 100vh;
    background: rgba(13, 33, 55, 0.94);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 80px 28px 36px;
    z-index: 310;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.35s;
    align-items: flex-start;
    gap: 4px;
    box-shadow: -8px 0 32px rgba(0,0,0,0.3);
    overflow-y: auto;
  }
  .main-nav.active {
    transform: translateX(0);
    visibility: visible;
  }

  /* Nav overlay (backdrop) */
  .nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(13, 33, 55, 0.5);
    z-index: 290;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
  }
  .nav-overlay.active { display: block; }

  .main-nav a {
    color: rgba(255,255,255,0.75);
    width: 100%;
    padding: 12px 14px;
    border-radius: var(--r-md);
    font-size: 14px;
    font-weight: 600;
    border-bottom: 1px solid rgba(255,255,255,0.06);
  }
  .main-nav a:hover,
  .main-nav a.active {
    color: var(--accent);
    background: rgba(255,255,255,0.07);
  }
  .main-nav a.active::after { display: none; }

  /* nav close button inside drawer */
  .nav-close-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.15);
    cursor: pointer;
    color: #fff;
  }
  .nav-close-btn svg { width: 16px; height: 16px; }

  /* ── Header actions (search only visible on mobile) ── */
  .btn-search-icon { display: none; }

  /* ── Hero ── */
  .hero-section {
    padding: 56px 0 100px;
  }
  .hero-layout {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .hero-right { display: none; }
  .hero-heading { font-size: 2rem; }
  .hero-para { font-size: 0.95rem; }
  .hero-cta { flex-direction: column; gap: 10px; }
  .btn-hero-primary,
  .btn-hero-outline {
    width: 100%;
    justify-content: center;
    padding: 13px 20px;
  }
  .hero-stats {
    gap: 14px;
    flex-wrap: wrap;
  }
  .hero-stat-val { font-size: 1.15rem; }
  .hero-stat-div { display: none; }
  .hero-eyebrow { font-size: 11px; }

  /* ── Features strip ── */
  .features-strip { margin-top: -60px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-item { padding: 20px 14px; }

  /* ── About ── */
  .about-grid { grid-template-columns: 1fr; gap: 28px; }
  .about-banner-wrap { height: 240px; }
  .about-heading { font-size: 1.7rem; }
  .about-issn-row { flex-direction: column; gap: 8px; }

  /* ── Sections spacing ── */
  .section { padding: 48px 0; }
  .content-card { padding: 20px; }

  /* ── Current issue ── */
  .current-issue-grid { grid-template-columns: 1fr; }
  .issue-card { padding: 24px; }

  /* ── Why publish ── */
  .why-publish-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .why-publish-card { padding: 20px 16px; }

  /* ── Latest articles ── */
  .latest-articles-grid { grid-template-columns: 1fr; }
  .latest-articles-header { flex-direction: column; align-items: flex-start; gap: 12px; }

  /* ── Sidebar ── */
  .sidebar { order: 0; }

  /* ── Footer ── */
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; font-size: 12px; }
  .footer-index-row { flex-direction: column; align-items: flex-start; gap: 10px; }

  /* ── Board / contact / forms ── */
  .board-grid { grid-template-columns: 1fr; }
  .contact-grid-2 { grid-template-columns: 1fr; }
  .form-grid-2 { grid-template-columns: 1fr; }

  /* ── Article meta ── */
  .article-meta-grid { grid-template-columns: 1fr; gap: 8px; }

  /* ── Scroll to top ── */
  #scroll-top { bottom: 18px; right: 18px; width: 40px; height: 40px; }
}

/* ===================================================
   RESPONSIVE — SMALL MOBILE (max 480px)
   =================================================== */
@media (max-width: 480px) {
  .hero-heading { font-size: 1.75rem; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .why-publish-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 10px; }
  .about-banner-stat strong { font-size: 1.4rem; }
  .hero-info-card { padding: 18px; }
  .container { padding: 0 16px; }
  .footer-index-chips { gap: 6px; }
}