/* ==========================================================================
   ISJ HOMEPAGE STYLES
   Architecture:
     - Section 1: Display Typography
     - Section 2: Shared Primitives (buttons, links, icons, prose)
     - Section 3: Hero
     - Section 4: Trust Strip
     - Section 5: Mission
     - Section 6: Latest Research
     - Section 7: Why Publish
     - Section 8: Disciplines
     - Section 9: Call-to-Submit
     - Section 10: Additional Content
     - Section 11: Scroll Reveal Animation
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DISPLAY TYPOGRAPHY
   Anton — bold, condensed, uppercase. Used only for hero + section titles.
   -------------------------------------------------------------------------- */
.isj-display {
  font-family: var(--font-display);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  -webkit-font-smoothing: antialiased;
}

/* --------------------------------------------------------------------------
   2. SHARED PRIMITIVES
   -------------------------------------------------------------------------- */

/* --- Section scaffold --- */
.isj-section {
  padding: var(--space-16) 0;
}

@media (min-width: 768px) {
  .isj-section {
    padding: var(--space-20) 0;
  }
}

/* Elevate specificity to override OJS core h2 rules */
.page_index_journal h2.isj-section__title {
  font-size: var(--text-display-sm);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

/* --- Buttons --- */
.isj-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-semi);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-base);
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
}

/* Primary (green bg) */
.isj-btn--primary {
  color: var(--color-white);
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.isj-btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(46, 125, 50, 0.3);
}

/* Secondary (outlined) */
.isj-btn--secondary {
  color: var(--color-text-primary);
  background: transparent;
  border-color: var(--color-border);
}

.isj-btn--secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-bg);
  text-decoration: none;
}

/* Hero Primary (white on dark hero bg) */
.isj-btn--hero-primary {
  color: var(--color-primary-dark);
  background: var(--color-white);
  border-color: var(--color-white);
  font-weight: var(--weight-bold);
}

.isj-btn--hero-primary:hover {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.9);
  color: var(--color-primary-dark);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* Hero Secondary (outlined on dark) */
.isj-btn--hero-secondary {
  color: rgba(255, 255, 255, 0.9);
  background: transparent;
  border-color: rgba(255, 255, 255, 0.3);
}

.isj-btn--hero-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
  color: var(--color-white);
  text-decoration: none;
}

/* --- Link Arrow --- */
.isj-link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-weight: var(--weight-semi);
  font-size: var(--text-sm);
  color: var(--color-primary);
  transition:
    color var(--transition-fast),
    gap var(--transition-fast);
}

.isj-link-arrow:hover {
  color: var(--color-primary-dark);
  gap: var(--space-2);
  text-decoration: none;
}

/* --- Reusable Icon --- */
.isj-icon {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
}

.isj-icon--sm {
  width: 16px;
  height: 16px;
}

/* --- Prose --- */
.isj-prose {
  font-size: var(--text-base);
  line-height: var(--leading-loose);
  color: var(--color-text-secondary);
}

.isj-prose p {
  margin-bottom: var(--space-4);
}

.isj-prose strong {
  color: var(--color-text-primary);
  font-weight: var(--weight-semi);
}

.isj-prose ul {
  margin-left: var(--space-4);
  margin-bottom: var(--space-4);
  list-style-type: disc;
}

.isj-prose li {
  margin-bottom: var(--space-2);
}

/* --------------------------------------------------------------------------
   3. HERO
   Dark green gradient. White text. Display headline. Authority.
   -------------------------------------------------------------------------- */
.isj-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg,
      #0d3b13 0%,
      var(--color-primary-dark) 40%,
      var(--color-primary) 100%);
  color: var(--color-white);
  padding: var(--space-16) 0 var(--space-16);
}

@media (min-width: 768px) {
  .isj-hero {
    padding: var(--space-20) 0 var(--space-24);
  }
}

/* Subtle grain / texture overlay */
.isj-hero__bg {
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}

.isj-hero__layout {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
}

@media (min-width: 993px) {
  .isj-hero__layout {
    flex-direction: row;
    align-items: center;
    gap: var(--space-16);
  }
}

.isj-hero__content {
  flex: 1;
  max-width: 1100px;
  /* Allow the headline to breathe fully and scale upwards */
}

.isj-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-semi);
  color: rgba(255, 255, 255, 0.8);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-5);
}

.isj-hero__pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #66bb6a;
  display: inline-block;
  box-shadow: 0 0 0 rgba(102, 187, 106, 0.5);
}

/* Elevate specificity using the ID to mathematically defeat OJS core h1 rules (.pkp_structure_main h1) */
#isj-journal-title.isj-hero__title {
  font-size: var(--text-display);
  font-weight: var(--weight-bold);
  /* Extra bold for maximum impact */
  letter-spacing: var(--tracking-tight);
  /* Ultra-tight kerning for massive text */
  line-height: var(--leading-tight);
  /* Tighter line height for large typography */
  color: var(--color-white);
  margin-top: 0;
  margin-bottom: var(--space-8);
  max-width: 1100px;
  /* Wider to handle the huge text */
}

.isj-hero__tagline {
  font-size: var(--text-md);
  color: rgba(255, 255, 255, 0.85);
  /* Slightly higher contrast for editorial feel */
  line-height: var(--leading-normal);
  font-weight: var(--weight-regular);
  /* Distinct contrast with headline */
  margin-bottom: var(--space-10);
  max-width: 600px;
  /* Better measure (CPL) for reading */
}

.isj-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
}

/* Hero image */
.isj-hero__media {
  flex: 1;
  max-width: 460px;
  display: flex;
  justify-content: center;
}

.isj-hero__img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px -15px rgba(0, 0, 0, 0.4);
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   4. TRUST STRIP
   Compact credibility row. Quiet confidence, not decoration.
   -------------------------------------------------------------------------- */
.isj-trust {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-5) 0;
}

.isj-trust__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-6);
  align-items: center;
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

@media (min-width: 768px) {
  .isj-trust__list {
    gap: var(--space-2) var(--space-10);
  }
}

.isj-trust__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-weight: var(--weight-medium);
  white-space: nowrap;
}

.isj-trust__icon {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   5. MISSION
   Editorial prose. Clean two-column on desktop.
   -------------------------------------------------------------------------- */
.isj-mission {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}

.isj-mission__header {
  margin-bottom: var(--space-8);
}

.isj-mission__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 993px) {
  .isj-mission__layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: start;
  }
}

/* --------------------------------------------------------------------------
   6. LATEST RESEARCH (Current Issue)
   -------------------------------------------------------------------------- */
.isj-latest {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.isj-latest__header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

.isj-latest__title-group {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.isj-latest__issue-badge {
  display: inline-flex;
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--weight-semi);
  color: var(--color-primary);
  background: var(--color-primary-bg);
  border-radius: var(--radius-full);
  white-space: nowrap;
}

/* --- Article Cards (override OJS issue_toc) --- */
.isj-latest__grid .isj-issue-header {
  display: none;
  /* Hide redundant issue heading since we have our own */
}

/* Hide section headings inside issue_toc when rendered on homepage */
.isj-latest__grid .isj-issue-section__title {
  display: none;
}

/* --------------------------------------------------------------------------
   7. WHY PUBLISH
   3-column value proposition cards on light green background.
   -------------------------------------------------------------------------- */
.isj-why {
  background: var(--color-primary-bg);
  border-bottom: 1px solid var(--color-border);
}

.isj-why__header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.isj-why__subtitle {
  font-size: var(--text-md);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
  margin-top: var(--space-3);
}

.isj-why__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .isj-why__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }
}

.isj-why__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  text-align: center;
  transition:
    transform var(--transition-base),
    box-shadow var(--transition-base);
}

.isj-why__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px -12px rgba(46, 125, 50, 0.12);
}

.isj-why__card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-bg);
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}

.isj-why__card-icon svg {
  width: 28px;
  height: 28px;
}

.isj-why__card-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}

.isj-why__card-text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
}

/* --------------------------------------------------------------------------
   8. DISCIPLINES
   Tag cloud of research areas.
   -------------------------------------------------------------------------- */
.isj-disciplines {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.isj-disciplines__subtitle {
  font-size: var(--text-md);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  margin-top: var(--space-2);
  margin-left: auto;
  margin-right: auto;
  max-width: 600px;
}

.isj-disciplines__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.isj-tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-primary);
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  cursor: default;
}

.isj-tag:hover {
  background: var(--color-primary-bg);
  border-color: var(--color-primary-light);
  color: var(--color-primary-dark);
}

/* --------------------------------------------------------------------------
   9. CALL TO SUBMIT
   Full-width dark banner. Strong closing CTA.
   -------------------------------------------------------------------------- */
.isj-cta {
  background: linear-gradient(135deg,
      #0d3b13 0%,
      var(--color-primary-dark) 50%,
      var(--color-primary) 100%);
  color: var(--color-white);
  padding: var(--space-16) 0;
}

@media (min-width: 768px) {
  .isj-cta {
    padding: var(--space-20) 0;
  }
}

.isj-cta__layout {
  text-align: center;
  max-width: 680px;
}

.page_index_journal h2.isj-cta__title {
  font-size: var(--text-display-sm);
  color: var(--color-white);
  margin-bottom: var(--space-5);
}

.isj-cta__text {
  font-size: var(--text-md);
  color: rgba(255, 255, 255, 0.8);
  line-height: var(--leading-normal);
  margin-bottom: var(--space-8);
  max-width: 100%;
}

.isj-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
}

/* --------------------------------------------------------------------------
   10. ADDITIONAL CONTENT
   -------------------------------------------------------------------------- */
.isj-additional-content {
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

/* --------------------------------------------------------------------------
   11. SCROLL REVEAL ANIMATION
   Sections fade in on scroll via IntersectionObserver.
   -------------------------------------------------------------------------- */
.isj-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.isj-reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.isj-reveal[data-delay="1"] {
  transition-delay: 0.1s;
}

.isj-reveal[data-delay="2"] {
  transition-delay: 0.2s;
}

.isj-reveal[data-delay="3"] {
  transition-delay: 0.3s;
}