/* ==========================================================================
   OCE DESIGN SYSTEM - CENTRAL STYLESHEET
   Clean authoritative build for PD One-Stop
   ========================================================================== */

/* 1. Brand Tokens & Identity */
:root {
  --c-deep-navy: #001a4e;
  --c-navy: #003087;
  --c-gold: #c9a84c;
  --c-surface: #f8f7f5;
  --c-white: #ffffff;
  --c-text-primary: #1a1a2e;
  --c-text-muted: #5a6475;
  --c-text-light: #ffffff;
  --c-text-light-muted: rgba(255, 255, 255, 0.7);

  /* Semantic page tokens */
  --pd-bg: var(--c-surface) !important;
  --pd-card: var(--c-white);
  --pd-text: var(--c-text-primary) !important;
  --pd-muted: var(--c-text-muted);
  --pd-primary: var(--c-gold) !important;
  --pd-navy: var(--c-deep-navy) !important;
  --pd-indigo: var(--c-navy) !important;
  --pd-violet: var(--c-navy) !important;
  --pd-cyan: #16a3c7;
  --pd-gold: var(--c-gold);
  --pd-card-tint: #f8fbff;
  --pd-card-line: rgba(0, 48, 135, 0.12) !important;
  --pd-border: #e2e8f0;
  --pd-success: #198754;
  --pd-danger: #b42318;
  --pd-shadow: 0 10px 28px rgba(15, 23, 42, 0.07);
  --pd-card-shadow-strong: 0 18px 42px rgba(15, 23, 42, 0.12);
  --pd-card-shadow-soft: 0 12px 30px rgba(15, 23, 42, 0.08);

  --pd-heading-font: "Be Vietnam Pro", sans-serif !important;
  --pd-body-font: "Be Vietnam Pro", sans-serif !important;
}

/* 2. Global Base & Sticky Footer Structure */
body {
  display: flex !important;
  flex-direction: column !important;
  min-height: 100vh !important;
  margin: 0;
  font-family: var(--pd-body-font) !important;
  background: var(--c-surface) !important;
  color: var(--c-text-primary) !important;
}

/* 3. Typography Standards */
h1,
h2,
h3,
h4,
h5,
h6,
.intro-title,
.card-title,
.section-title {
  font-family: var(--pd-heading-font) !important;
  letter-spacing: -0.02em !important;
  line-height: 1.1 !important;
  color: var(--c-deep-navy) !important;
}

p,
span,
div,
label,
input,
button,
select,
textarea {
  font-family: var(--pd-body-font) !important;
}

/* Ensure headings inside dark legacy headers and modals remain white */
header h1,
header h2,
header h3,
header h4,
header h5,
header h6,
.modal-header h1,
.modal-header h2,
.modal-header h3,
.modal-header h4,
.modal-header h5,
.modal-header h6 {
  color: var(--c-white) !important;
}

/* 4. Unified OCE Header (64px, Deep Navy, sticky) */
.pd-oce-header {
  height: 64px;
  position: sticky;
  top: 0;
  z-index: 1030;
  background: var(--c-deep-navy);
  width: 100%;
}

.pd-oce-header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pd-oce-logo {
  height: 36px;
  max-height: 80px;
  width: auto;
}

.pd-oce-dept {
  color: var(--c-text-light-muted);
  font-weight: 500;
  font-size: 0.875rem;
}

/* 5. Unified OCE Footer (Sticky bottom, 96px logo) */
.pd-oce-footer {
  background: var(--c-deep-navy);
  padding: 4rem 0 2rem;
  color: var(--c-text-light-muted);
  margin-top: auto !important;
  width: 100%;
}

.pd-oce-footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.pd-oce-footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.pd-oce-footer-logo {
  height: 96px !important;
  width: auto !important;
  max-width: 100%;
  object-fit: contain;
  align-self: flex-start;
}

.pd-oce-footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.pd-oce-footer-text {
  color: var(--c-text-light-muted);
  font-size: 0.875rem;
  line-height: 1.6;
}

.pd-oce-footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
}

/* 6. Buttons & Interactions */
.btn-primary {
  background: var(--c-gold) !important;
  color: var(--c-deep-navy) !important;
  border-radius: 8px !important;
  padding: 0.875rem 1.5rem !important;
  font-weight: 600 !important;
  border: none !important;
  transition:
    transform 0.2s cubic-bezier(0.16, 1, 0.3, 1),
    filter 0.2s !important;
  box-shadow: none !important;
}

.btn-primary:hover {
  filter: brightness(1.1) !important;
  transform: translateY(-2px) !important;
}

.btn-primary:active {
  transform: scale(0.98) !important;
}

.btn-secondary,
.btn-outline-secondary {
  background: var(--c-deep-navy) !important;
  color: var(--c-white) !important;
  border-radius: 8px !important;
  padding: 0.875rem 1.5rem !important;
  font-weight: 600 !important;
  border: none !important;
  box-shadow: none !important;
}

.btn-secondary:active,
.btn-outline-secondary:active {
  transform: scale(0.98) !important;
}

/* 7. Layout & Container */
.container {
  max-width: 1400px !important;
  padding-left: 2rem !important;
  padding-right: 2rem !important;
}

/* 8. Cards & Bento Components */
.card,
.hero-card,
.section-card,
.course-card {
  border-radius: 12px !important;
  background: var(--c-white) !important;
  border: none !important;
  border-left: 4px solid var(--c-navy) !important;
  box-shadow: 0 10px 30px rgba(0, 26, 78, 0.05) !important;
  transition:
    transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.card:hover,
.hero-card:hover,
.section-card:hover,
.course-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: 0 12px 24px -10px rgba(0, 26, 78, 0.15) !important;
}

/* 9. Portal Cards (Main Index) */
.portal-card h4,
.portal-card h6,
.portal-card p,
.portal-card span,
.portal-card div {
  color: var(--c-text-primary) !important;
}

.portal-card .text-muted,
.portal-card .small {
  color: var(--c-text-muted) !important;
}

/* 10. Local Sub-page Tabs & Navigation */
.pd-local-tabs {
  max-width: 1400px !important;
  margin: 1.5rem auto 2rem !important;
  padding: 0 2rem !important;
  display: flex;
  justify-content: space-between !important;
  align-items: center !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  width: 100%;
}

.pd-local-tabs .pd-app-nav-inner,
.pd-local-tabs > div {
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  width: 100% !important;
}

.pd-page-title h2 {
  margin: 0;
  color: var(--c-deep-navy) !important;
}

.pd-page-title .text-muted {
  color: var(--c-text-muted) !important;
}

/* Gated nav for portals before login */
#mainNav.pd-local-tabs {
  display: none;
  background: transparent !important;
  box-shadow: none !important;
  border-bottom: none !important;
}

/* Ensure inline display: none is strictly honored */
#mainNav[style*="display: none"],
#mainNav[style*="display:none"],
.pd-local-tabs[style*="display: none"],
.pd-local-tabs[style*="display:none"] {
  display: none !important;
}

/* Override legacy client nav background */
.pd-client-nav #mainNav {
  background: transparent !important;
  box-shadow: none !important;
  border-bottom: none !important;
}

#navItems.pd-app-tabs,
.pd-app-tabs {
  display: flex !important;
  flex-direction: row !important;
  flex-wrap: nowrap !important;
  gap: 0.5rem !important;
  background: var(--c-surface) !important;
  border: 1px solid rgba(0, 26, 78, 0.1) !important;
  border-radius: 999px !important;
  padding: 0.35rem !important;
  box-shadow: 0 4px 12px rgba(0, 26, 78, 0.05) !important;
  width: auto !important;
  overflow-x: auto !important;
}

#navItems.pd-app-tabs .nav-link,
.pd-app-tabs .nav-link {
  color: var(--c-text-muted) !important;
  background: transparent !important;
  border-radius: 999px !important;
  padding: 0.6rem 1.2rem !important;
  font-weight: 600 !important;
  font-size: 0.9rem !important;
  text-decoration: none !important;
  white-space: nowrap !important;
  min-height: auto !important;
  display: block !important;
}

#navItems.pd-app-tabs .nav-link:hover,
.pd-app-tabs .nav-link:hover {
  background: rgba(0, 26, 78, 0.05) !important;
  color: var(--c-deep-navy) !important;
}

#navItems.pd-app-tabs .nav-link.active,
.pd-app-tabs .nav-link.active {
  background: var(--c-deep-navy) !important;
  color: var(--c-white) !important;
  box-shadow: 0 4px 10px rgba(0, 26, 78, 0.15) !important;
}

.nav-link.text-danger {
  color: var(--pd-danger) !important;
}

.nav-link.text-danger:hover {
  opacity: 0.85;
}

/* Ensure hidden links inside pd-app-tabs remain strictly hidden */
#navItems.pd-app-tabs .nav-link.hidden,
.pd-app-tabs .nav-link.hidden,
.pd-app-tabs .hidden,
.hidden {
  display: none !important;
}

/* 11. Bento Grid Enforcements */
#catalogList,
#activeList {
  display: grid !important;
  grid-template-columns: repeat(12, 1fr) !important;
  gap: 1.5rem !important;
}

#catalogList > div,
#activeList > div {
  width: auto !important;
  max-width: 100% !important;
  margin: 0 !important;
}

#catalogList > div:nth-child(odd),
#activeList > div:nth-child(odd) {
  grid-column: span 7 !important;
}

#catalogList > div:nth-child(even),
#activeList > div:nth-child(even) {
  grid-column: span 5 !important;
}

/* === Responsive: Tablet Landscape (≤991px) === */
@media (max-width: 991px) {
  #catalogList > div:nth-child(n),
  #activeList > div:nth-child(n) {
    grid-column: span 12 !important;
  }
}

/* 12. Motion & Scroll Reveals */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* === Responsive: Tablet Portrait & Mobile (≤768px) === */
@media (max-width: 768px) {
  .pd-oce-dept {
    display: none;
  }

  .pd-oce-footer-grid {
    grid-template-columns: 1fr;
  }

  .pd-oce-footer .text-md-end {
    text-align: left !important;
  }

  .pd-local-tabs {
    padding: 0 1rem !important;
    justify-content: center !important;
  }

  #navItems.pd-app-tabs,
  .pd-app-tabs {
    flex-wrap: wrap !important;
    justify-content: center !important;
    border-radius: 16px !important;
    padding: 0.5rem !important;
  }

  #navItems.pd-app-tabs .nav-link,
  .pd-app-tabs .nav-link {
    flex: 1 1 auto !important;
    text-align: center !important;
  }
}