/* ==========================================================================
   EDURICH INTERNATIONAL CAMPUS - REDESIGNED GLOBAL FOOTER
   Deep navy (#071225), crisp white typography, vibrant pink (#C40062) accents.
   Desktop: Multi-column grid with pre-footer CTA card.
   Mobile: Compact collapsible accordion with smooth plus/minus transitions.
   ========================================================================== */

:root {
  --color-footer-bg: #071225;
  --color-footer-surface: #0E1A33;
  --color-footer-card: rgba(14, 26, 51, 0.85);
  --color-footer-border: rgba(255, 255, 255, 0.08);
  --color-footer-border-subtle: rgba(255, 255, 255, 0.05);
  --color-footer-text: #94A3B8;
  --color-footer-text-light: #CBD5E1;
  --color-footer-text-bright: #F8FAFC;
}

.global-footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  font-size: var(--font-size-sm);
  border-top: 3px solid var(--color-primary);
  margin-top: auto;
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
}

.global-footer * {
  box-sizing: border-box;
}

/* ==========================================================================
   1. Pre-Footer Contact Call-to-Action (Get in Touch Card)
   ========================================================================== */
.footer-cta-section {
  padding-top: 40px;
  padding-bottom: 8px;
  position: relative;
}

.footer-cta-card {
  position: relative;
  background: linear-gradient(135deg, rgba(14, 26, 51, 0.95) 0%, rgba(9, 18, 38, 0.98) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 28px 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(3, 7, 18, 0.35);
}

.footer-cta-card::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(196, 0, 98, 0.16) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.footer-cta-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 36px;
  right: 36px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(196, 0, 98, 0.4), transparent);
  pointer-events: none;
}

.footer-cta-content {
  position: relative;
  z-index: 1;
  max-width: 660px;
}

.footer-cta-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  background: rgba(196, 0, 98, 0.1);
  border: 1px solid rgba(196, 0, 98, 0.25);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 8px;
}

.footer-cta-title {
  font-family: var(--font-family-heading);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text-white);
  margin: 0 0 6px 0;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.footer-cta-desc {
  color: var(--color-footer-text);
  font-size: 0.88rem;
  margin: 0;
  line-height: 1.55;
}

.footer-cta-action {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.footer-cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background-color: var(--color-primary);
  color: var(--color-text-white) !important;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  white-space: nowrap;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 14px rgba(196, 0, 98, 0.35);
  cursor: pointer;
}

.footer-cta-btn:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(196, 0, 98, 0.45);
}

.footer-cta-btn svg {
  transition: transform 0.2s ease;
}

.footer-cta-btn:hover svg {
  transform: translateX(4px);
}

/* ==========================================================================
   2. Main Footer Body (Top Section)
   ========================================================================== */
.footer-top {
  padding-top: 36px;
  padding-bottom: 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.45fr 1fr 1.15fr 1.3fr;
  gap: var(--spacing-2xl);
  align-items: flex-start;
}

/* Brand Column */
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.footer-logo-main {
  font-family: var(--font-family-heading);
  font-size: 1.6rem;
  font-weight: var(--font-weight-extrabold);
  color: var(--color-primary);
  letter-spacing: -0.03em;
}

.footer-logo-divider {
  width: 1.5px;
  height: 24px;
  background-color: #475569;
}

.footer-logo-sub {
  font-size: 0.68rem;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-white);
  line-height: 1.1;
  display: flex;
  flex-direction: column;
}

.footer-tagline {
  color: var(--color-footer-text-light);
  font-size: 0.88rem;
  line-height: var(--line-height-relaxed);
  margin: 0;
}

.footer-cmi-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  max-width: fit-content;
  transition: all var(--transition-fast);
}

.footer-cmi-badge:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.22);
}

.footer-cmi-badge img {
  height: 28px;
  width: auto;
  object-fit: contain;
  display: block;
}

.footer-cmi-badge span {
  font-size: var(--font-size-xs);
  color: #FFFFFF;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.02em;
}

.footer-social-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: 4px;
}

.social-icon-btn {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-pill);
  background-color: rgba(255, 255, 255, 0.08);
  color: #CBD5E1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.social-icon-btn:hover {
  background-color: var(--color-primary);
  color: var(--color-text-white);
  transform: translateY(-2px);
}

.social-icon-btn.social-icon-pending {
  cursor: not-allowed;
  opacity: 0.65;
}

.social-icon-btn.social-icon-pending:hover {
  background-color: rgba(255, 255, 255, 0.12);
  color: #CBD5E1;
  transform: none;
}

.social-icon-btn svg {
  width: 16px;
  height: 16px;
}

/* ==========================================================================
   3. Desktop Navigation Columns & Accordion Base
   ========================================================================== */
.footer-accordion-header {
  background: transparent;
  border: none;
  padding: 0;
  width: 100%;
  text-align: left;
  display: block;
  cursor: default;
  color: inherit;
  font: inherit;
}

.footer-heading {
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-white);
  margin-bottom: var(--spacing-lg);
  position: relative;
  display: inline-block;
  letter-spacing: -0.01em;
}

.footer-heading::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
}

.footer-accordion-indicator {
  display: none;
}

.footer-accordion-panel {
  display: block;
}

.footer-accordion-inner {
  display: block;
}

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

.footer-nav-list a {
  color: var(--color-footer-text);
  text-decoration: none;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-size-sm);
}

.footer-nav-list a:hover {
  color: var(--color-primary);
  transform: translateX(3px);
}

/* Contact Info Column */
.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--color-footer-text);
  line-height: 1.45;
  font-size: var(--font-size-sm);
}

.footer-contact-item svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer-contact-item a {
  color: var(--color-footer-text-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-contact-item a:hover {
  color: var(--color-primary);
}

.footer-email-stack {
  display: flex;
  flex-direction: column;
  gap: 3px;
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* ==========================================================================
   4. Bottom Legal Bar
   ========================================================================== */
.footer-bottom {
  border-top: 1px solid var(--color-footer-border);
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  font-size: var(--font-size-xs);
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-copyright {
  margin-bottom: 0;
  color: #64748B;
  font-size: var(--font-size-xs);
  line-height: 1.5;
}

.footer-legal-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.footer-legal-links a {
  color: var(--color-footer-text);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-legal-links a:hover {
  color: var(--color-primary);
}

.footer-legal-separator {
  color: rgba(255, 255, 255, 0.2);
  user-select: none;
}

/* ==========================================================================
   5. Tablet View (<= 992px)
   ========================================================================== */
@media (max-width: 992px) {
  .footer-cta-card {
    padding: 24px 28px;
    gap: 20px;
  }

  .footer-cta-title {
    font-size: 1.2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
  }
}

@media (max-width: 768px) {
  /* Pre-Footer CTA Hidden on Mobile View */
  .footer-cta-section {
    display: none !important;
  }

  /* Footer Top Section */
  .footer-top {
    padding-top: 32px;
    padding-bottom: 24px;
  }

  /* Single Column Stack */
  .footer-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

  /* Brand Column at the Top */
  .footer-brand {
    margin-bottom: 20px;
    padding-bottom: 16px;
    gap: 12px;
  }

  .footer-tagline {
    font-size: 0.84rem;
    line-height: 1.55;
  }

  .footer-cmi-badge {
    padding: 7px 12px;
  }

  .footer-cmi-badge img {
    height: 24px;
  }

  .footer-cmi-badge span {
    font-size: 0.72rem;
  }

  .footer-social-links {
    margin-top: 6px;
  }

  /* Accordion Groups */
  .footer-accordion-group {
    border-top: 1px solid var(--color-footer-border);
    width: 100%;
  }

  .footer-accordion-group:last-child {
    border-bottom: 1px solid var(--color-footer-border);
  }

  /* Accordion Header Buttons */
  .footer-accordion-header {
    width: 100%;
    min-height: 52px;
    padding: 15px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    transition: color 0.2s ease;
  }

  .footer-accordion-header:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 3px;
    border-radius: 4px;
  }

  .footer-heading {
    font-size: 0.94rem;
    font-weight: 700;
    color: var(--color-text-white);
    margin: 0;
    letter-spacing: -0.01em;
  }

  .footer-heading::after {
    display: none; /* Hide desktop underline in mobile accordion header */
  }

  /* Plus / Minus Indicator Icon */
  .footer-accordion-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--color-primary);
    flex-shrink: 0;
    transition: background-color 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
  }

  .footer-accordion-indicator svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    stroke-width: 2.5;
  }

  .footer-accordion-indicator .icon-plus {
    display: block;
  }

  .footer-accordion-indicator .icon-minus {
    display: none;
  }

  /* Expanded Accordion State */
  .footer-accordion-group.is-open .footer-accordion-header,
  .footer-accordion-header[aria-expanded="true"] {
    color: var(--color-primary);
  }

  .footer-accordion-group.is-open .footer-accordion-indicator,
  .footer-accordion-header[aria-expanded="true"] .footer-accordion-indicator {
    background-color: rgba(196, 0, 98, 0.18);
    border-color: rgba(196, 0, 98, 0.45);
    color: #FFFFFF;
    transform: rotate(180deg);
  }

  .footer-accordion-group.is-open .footer-accordion-indicator .icon-plus,
  .footer-accordion-header[aria-expanded="true"] .footer-accordion-indicator .icon-plus {
    display: none;
  }

  .footer-accordion-group.is-open .footer-accordion-indicator .icon-minus,
  .footer-accordion-header[aria-expanded="true"] .footer-accordion-indicator .icon-minus {
    display: block;
  }

  /* Smooth Grid Transition for Accordion Panel */
  .footer-accordion-panel {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
    opacity: 0;
    visibility: hidden;
  }

  .footer-accordion-group.is-open .footer-accordion-panel,
  .footer-accordion-header[aria-expanded="true"] + .footer-accordion-panel {
    grid-template-rows: 1fr;
    opacity: 1;
    visibility: visible;
  }

  .footer-accordion-inner {
    overflow: hidden;
    padding-top: 2px;
    padding-bottom: 18px;
  }

  /* Nav Links Inside Mobile Accordion */
  .footer-nav-list {
    gap: 4px;
  }

  .footer-nav-list a {
    min-height: 42px;
    display: flex;
    align-items: center;
    font-size: 0.86rem;
    color: var(--color-footer-text);
    padding: 6px 0;
    width: 100%;
    -webkit-tap-highlight-color: transparent;
  }

  .footer-nav-list a:active {
    color: var(--color-primary);
  }

  /* Contact Items Inside Mobile Accordion */
  .footer-contact-list {
    gap: 12px;
  }

  .footer-contact-item {
    font-size: 0.85rem;
    gap: 12px;
    padding: 3px 0;
  }

  .footer-contact-item a {
    min-height: 38px;
    display: inline-flex;
    align-items: center;
  }

  .footer-email-stack {
    gap: 4px;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .footer-email-stack a {
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    font-size: 0.85rem;
  }

  /* Bottom Legal Bar on Mobile */
  .footer-bottom {
    padding-top: 18px;
    padding-bottom: 24px;
  }

  .footer-bottom .container {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    gap: 8px;
  }

  .footer-copyright {
    font-size: 0.78rem;
    color: #64748B;
    text-align: left;
    line-height: 1.45;
  }

  .footer-legal-links {
    justify-content: flex-start;
    gap: 8px;
    font-size: 0.76rem;
    flex-wrap: wrap;
    text-align: left;
  }

  .footer-legal-links a {
    min-height: 32px;
    display: inline-flex;
    align-items: center;
  }

  .footer-legal-separator {
    display: inline;
  }
}

/* ==========================================================================
   7. Compact Mobile Devices (<= 375px)
   ========================================================================== */
@media (max-width: 375px) {
  .footer-logo-main {
    font-size: 1.45rem;
  }

  .footer-heading {
    font-size: 0.9rem;
  }

  .footer-nav-list a {
    font-size: 0.83rem;
  }

  .footer-contact-item {
    font-size: 0.82rem;
  }

  .footer-legal-links {
    gap: 6px;
    font-size: 0.72rem;
  }
}

/* ==========================================================================
   8. Floating Back to Top Button
   ========================================================================== */
.back-to-top-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #C40062 0%, #8A0042 100%);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 8px 24px rgba(196, 0, 98, 0.4), 0 2px 6px rgba(0, 0, 0, 0.25);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 995;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(16px) scale(0.9);
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              background 0.25s ease,
              box-shadow 0.25s ease;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.back-to-top-btn svg {
  width: 22px;
  height: 22px;
  stroke: #FFFFFF;
  stroke-width: 2.6;
  fill: none;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.back-to-top-btn.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.back-to-top-btn:hover {
  background: linear-gradient(135deg, #E00070 0%, #9E004C 100%);
  transform: translateY(-3px) scale(1.06);
  box-shadow: 0 14px 30px rgba(196, 0, 98, 0.52), 0 4px 10px rgba(0, 0, 0, 0.3);
}

.back-to-top-btn:hover svg {
  transform: translateY(-2px);
}

.back-to-top-btn:focus-visible {
  outline: 3px solid #FFFFFF;
  outline-offset: 3px;
}

.back-to-top-btn:active {
  transform: translateY(-1px) scale(0.96);
}

@media (max-width: 768px) {
  .back-to-top-btn {
    bottom: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
  }

  .back-to-top-btn svg {
    width: 19px;
    height: 19px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .back-to-top-btn {
    transition: opacity 0.15s ease !important;
    transform: none !important;
  }

  .back-to-top-btn svg {
    transition: none !important;
  }
}