/**
 * AbhiHub — Apple-Style Card Navigation & Loading Transition Styles
 * Brand Palette: Deep Navy (#1B3A6B), Sky Blue (#4FA9E0), Primary Red (#E8262A)
 */

/* ── 1. Top Branded Progress Bar (Safari/Apple HIG Style) ── */
#abhihub-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, #1B3A6B 0%, #4FA9E0 50%, #E8262A 100%);
  z-index: 100000;
  pointer-events: none;
  opacity: 0;
  transition: width 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease;
  box-shadow: 0 0 10px rgba(79, 169, 224, 0.6), 0 0 4px rgba(232, 38, 42, 0.4);
}

#abhihub-progress-bar.is-active {
  opacity: 1;
}

#abhihub-progress-bar.is-finishing {
  width: 100% !important;
  opacity: 0;
  transition: width 0.15s ease, opacity 0.25s 0.1s ease;
}

/* ── 2. Card Micro-Interaction Feedback ── */
.pcard,
[data-nav-card] {
  transition: transform 0.2s cubic-bezier(0.2, 0, 0, 1), box-shadow 0.2s ease, opacity 0.2s ease;
  position: relative;
  -webkit-tap-highlight-color: transparent;
}

/* Instant tap / active feedback */
.pcard:active,
[data-nav-card]:active {
  transform: scale(0.985);
}

/* Loading state applied on click */
.pcard.is-navigating,
[data-nav-card].is-navigating {
  transform: scale(0.985);
  box-shadow: 0 0 0 2px #4FA9E0, 0 4px 14px rgba(27, 58, 107, 0.15) !important;
  pointer-events: none !important; /* Prevents double-navigation clicks */
  cursor: wait !important;
}

/* Subtle inline loading pulse badge */
.pcard.is-navigating::after,
[data-nav-card].is-navigating::after {
  content: "";
  position: absolute;
  top: 10px;
  right: 10px;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(79, 169, 224, 0.25);
  border-top-color: #1B3A6B;
  border-radius: 50%;
  animation: abhihub-spin 0.6s linear infinite;
  z-index: 10;
  pointer-events: none;
}

:root[data-theme="dark"] .pcard.is-navigating::after,
[data-theme="dark"] .pcard.is-navigating::after {
  border-top-color: #4FA9E0;
}

@keyframes abhihub-spin {
  to { transform: rotate(360deg); }
}

/* Dim sibling cards slightly to focus attention on selected card */
.hscroll-row:has(.is-navigating) .pcard:not(.is-navigating),
.card-grid:has(.is-navigating) .pcard:not(.is-navigating) {
  opacity: 0.7;
  transition: opacity 0.25s ease;
}

/* ── 3. Slow Network Escalation Banner (>5s) ── */
#abhihub-nav-notice {
  position: fixed;
  bottom: calc(5.5rem + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(27, 58, 107, 0.95);
  color: #FFFFFF;
  padding: 0.625rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(79, 169, 224, 0.3);
  z-index: 99999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
}

#abhihub-nav-notice.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

#abhihub-nav-notice .notice-cancel {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: #FFFFFF;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 6px;
  cursor: pointer;
  margin-left: 0.5rem;
}

/* ── 4. Full-Screen Branded Loading Overlay (Option 1) ── */
#abhihub-loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 999999;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

:root[data-theme="dark"] #abhihub-loading-overlay,
[data-theme="dark"] #abhihub-loading-overlay {
  background: rgba(11, 17, 32, 0.65);
}

#abhihub-loading-overlay.is-visible {
  opacity: 1;
  pointer-events: auto; /* Blocks duplicate taps during page transition */
}

.abhihub-overlay-card {
  background: #FFFFFF;
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: 20px;
  padding: 24px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  box-shadow: 0 20px 45px rgba(27, 58, 107, 0.18), 0 4px 12px rgba(0, 0, 0, 0.08);
  transform: scale(0.92);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 280px;
  text-align: center;
}

:root[data-theme="dark"] .abhihub-overlay-card,
[data-theme="dark"] .abhihub-overlay-card {
  background: #1E293B;
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.45);
}

#abhihub-loading-overlay.is-visible .abhihub-overlay-card {
  transform: scale(1);
}

/* Branded Dual-Ring Spinner */
.abhihub-branded-spinner {
  position: relative;
  width: 44px;
  height: 44px;
}

.abhihub-branded-spinner::before,
.abhihub-branded-spinner::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 3px solid transparent;
}

.abhihub-branded-spinner::before {
  border-top-color: #1B3A6B;
  border-right-color: #4FA9E0;
  animation: abhihub-spin 0.75s cubic-bezier(0.5, 0, 0.5, 1) infinite;
}

:root[data-theme="dark"] .abhihub-branded-spinner::before,
[data-theme="dark"] .abhihub-branded-spinner::before {
  border-top-color: #4FA9E0;
  border-right-color: #70BAE8;
}

.abhihub-branded-spinner::after {
  inset: 5px;
  border-top-color: #E8262A;
  animation: abhihub-spin 1.1s linear infinite reverse;
}

.abhihub-overlay-text {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #1A1A1A;
  letter-spacing: -0.01em;
}

:root[data-theme="dark"] .abhihub-overlay-text,
[data-theme="dark"] .abhihub-overlay-text {
  color: #F8FAFC;
}

.abhihub-overlay-subtext {
  font-size: 0.75rem;
  color: #64748B;
  margin-top: -6px;
}

:root[data-theme="dark"] .abhihub-overlay-subtext,
[data-theme="dark"] .abhihub-overlay-subtext {
  color: #94A3B8;
}

/* ── 5. Accessibility (Screen Reader & Reduced Motion) ── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  #abhihub-loading-overlay,
  .abhihub-overlay-card,
  #abhihub-progress-bar,
  .pcard,
  [data-nav-card] {
    transition: none !important;
  }
  .abhihub-branded-spinner::before,
  .abhihub-branded-spinner::after,
  .pcard.is-navigating::after,
  [data-nav-card].is-navigating::after {
    animation: none !important;
    border: 3px solid #4FA9E0 !important;
  }
}