/* ============================================================
   BroPro Times — Premium News Card Design System
   JioNews-inspired · Material Design 3 · Glassmorphism Dark Mode
   ============================================================ */

/* ─── 1. Card Design Tokens ─────────────────────────────────── */

:root {
  --jio-card-radius: 16px;
  --jio-card-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  --jio-card-shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.12);
  --jio-card-transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 0.3s ease;
  --jio-card-lift: -4px;
  --jio-card-image-scale: 1.03;

  /* Source brand colours */
  --source-bptimes: #052962;
  --source-amarujala: #e53e3e;
  --source-jagran: #2563eb;
  --source-ndtv: #dc2626;

  /* Skeleton loading palette */
  --skeleton-base: #e2e8f0;
  --skeleton-shine: #f1f5f9;
}

html.dark {
  --jio-card-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
  --jio-card-shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.5);
  --skeleton-base: #1e293b;
  --skeleton-shine: #334155;
}

/* ─── 2. Base Card ──────────────────────────────────────────── */

.jio-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--jio-card-radius);
  overflow: hidden;
  box-shadow: var(--jio-card-shadow);
  transition: var(--jio-card-transition);
  cursor: pointer;
  animation: cardEntrance 0.4s ease both;
  animation-delay: calc(var(--card-index, 0) * 0.06s);
}

.jio-card:hover {
  transform: translateY(var(--jio-card-lift));
  box-shadow: var(--jio-card-shadow-hover);
}

/* Dark-mode glassmorphism */
html.dark .jio-card {
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* ─── 3. Hero Card & Hero Container ─────────────────────────── */

.jio-hero-container {
  margin-bottom: 8px;
}

.jio-card-hero {
  position: relative;
  min-height: 420px;
  border-radius: var(--jio-card-radius);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.jio-card-hero .jio-card-hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
  z-index: 0;
}

.jio-card-hero:hover .jio-card-hero-img {
  transform: scale(var(--jio-card-image-scale));
}

.jio-card-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.85) 0%,
    rgba(0, 0, 0, 0.4) 50%,
    transparent 100%
  );
  z-index: 1;
  pointer-events: none;
}

.jio-card-hero .jio-card-hero-content {
  position: relative;
  z-index: 2;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.jio-card-hero .jio-card-hero-title {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: "Noto Serif", serif;
  color: #fff;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.jio-card-hero .jio-card-hero-summary {
  font-size: 1rem;
  font-family: "Public Sans", sans-serif;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.jio-card-hero .jio-card-badges {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
}

@media (max-width: 639px) {
  .jio-card-hero {
    min-height: 320px;
  }
  .jio-card-hero .jio-card-hero-title {
    font-size: 1.35rem;
  }
}

/* ─── 4. Image Container & Image ────────────────────────────── */

.jio-card-image-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--surface-container-high);
  flex-shrink: 0;
}

.jio-card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.jio-card:hover .jio-card-image {
  transform: scale(var(--jio-card-image-scale));
}

/* ─── 5. Image Placeholder (no image fallback) ──────────────── */

.jio-card-image-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: linear-gradient(
    135deg,
    var(--surface-container) 0%,
    var(--surface-container-high) 100%
  );
  color: var(--on-surface-variant);
  font-size: 12px;
  font-weight: 700;
  font-family: "Public Sans", sans-serif;
  letter-spacing: 0;
  text-transform: uppercase;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.jio-card-image-placeholder .placeholder-icon {
  font-size: 36px;
  opacity: 0.7;
  color: var(--placeholder-accent, var(--primary));
  filter: drop-shadow(0 8px 18px color-mix(in srgb, var(--placeholder-accent, var(--primary)) 28%, transparent));
}

.jio-card-image-placeholder::before {
  content: "";
  position: absolute;
  inset: -35%;
  z-index: -2;
  background:
    radial-gradient(circle at 24% 20%, color-mix(in srgb, var(--placeholder-accent, var(--primary)) 32%, transparent), transparent 34%),
    linear-gradient(135deg, color-mix(in srgb, var(--placeholder-accent, var(--primary)) 14%, var(--surface-container)) 0%, var(--surface-container-high) 72%);
}

.jio-card-image-placeholder::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.75), transparent 86%);
}

.jio-placeholder-source {
  max-width: min(84%, 260px);
  color: var(--on-surface);
  font-size: 13px;
  font-weight: 800;
  text-align: center;
  text-transform: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.jio-placeholder-kicker {
  max-width: min(84%, 260px);
  color: var(--on-surface-variant);
  font-size: 11px;
  font-weight: 700;
  text-align: center;
  text-transform: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.jio-card-hero-placeholder {
  position: absolute;
  inset: 0;
  height: 100%;
  aspect-ratio: auto;
  color: rgba(255, 255, 255, 0.92);
  background: #07111f;
}

.jio-card-hero-placeholder::before {
  background:
    radial-gradient(circle at 18% 16%, color-mix(in srgb, var(--placeholder-accent, #2563eb) 42%, transparent), transparent 34%),
    radial-gradient(circle at 78% 18%, rgba(255, 255, 255, 0.14), transparent 30%),
    linear-gradient(135deg, #050914 0%, color-mix(in srgb, var(--placeholder-accent, #2563eb) 30%, #081224) 58%, #050914 100%);
}

.jio-card-hero-placeholder .placeholder-icon {
  font-size: 48px;
  color: rgba(255, 255, 255, 0.82);
}

.jio-card-hero-placeholder .jio-placeholder-source,
.jio-card-hero-placeholder .jio-placeholder-kicker {
  color: rgba(255, 255, 255, 0.82);
}

/* ─── 6. Read-Time Pill (on image) ──────────────────────────── */

.jio-card-read-time {
  position: absolute;
  bottom: 10px;
  left: 10px;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  font-size: 11px;
  font-family: "Public Sans", sans-serif;
  padding: 3px 10px;
  border-radius: 20px;
  z-index: 1;
  line-height: 1.5;
}

/* ─── 7. Source Pill (on image) ──────────────────────────────── */

.jio-card-source-pill {
  position: absolute;
  bottom: 10px;
  right: 10px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  font-family: "Public Sans", sans-serif;
  color: #fff;
  z-index: 1;
  line-height: 1.5;
  /* background-color set via inline style */
}

/* ─── 8. Card Body ──────────────────────────────────────────── */

.jio-card-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-grow: 1;
}

/* ─── 9. Badges Row ─────────────────────────────────────────── */

.jio-card-badges {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* ─── 10. Category Badge ────────────────────────────────────── */

.jio-card-cat-badge {
  font-size: 10px;
  font-weight: 800;
  font-family: "Public Sans", sans-serif;
  padding: 3px 10px;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 1.5;
  /* Default */
  background: var(--surface-container);
  color: var(--on-surface-variant);
}

/* — Category colour variants — */
.jio-card-cat-badge[data-cat="school_news"]  { background: #eff6ff; color: #1d4ed8; }
.jio-card-cat-badge[data-cat="education"]    { background: #ecfdf5; color: #047857; }
.jio-card-cat-badge[data-cat="achievements"] { background: #fffbeb; color: #b45309; }
.jio-card-cat-badge[data-cat="campus_life"]  { background: #faf5ff; color: #7c3aed; }
.jio-card-cat-badge[data-cat="careers"]      { background: #f0fdfa; color: #0f766e; }
.jio-card-cat-badge[data-cat="politics"]     { background: #fff1f2; color: #be123c; }
.jio-card-cat-badge[data-cat="science_tech"] { background: #eef2ff; color: #4338ca; }
.jio-card-cat-badge[data-cat="environment"]  { background: #f0fdf4; color: #15803d; }
.jio-card-cat-badge[data-cat="sports"]       { background: #f0f9ff; color: #0369a1; }
.jio-card-cat-badge[data-cat="business"]     { background: #fff7ed; color: #c2410c; }
.jio-card-cat-badge[data-cat="health"]       { background: #fdf2f8; color: #be185d; }
.jio-card-cat-badge[data-cat="local"]        { background: #ecfeff; color: #0e7490; }
.jio-card-cat-badge[data-cat="opinion"]      { background: #f5f3ff; color: #6d28d9; }

/* Dark-mode category badges */
html.dark .jio-card-cat-badge[data-cat="school_news"]  { background: rgba(59, 130, 246, 0.15); color: #93c5fd; }
html.dark .jio-card-cat-badge[data-cat="education"]    { background: rgba(16, 185, 129, 0.15); color: #6ee7b7; }
html.dark .jio-card-cat-badge[data-cat="achievements"] { background: rgba(245, 158, 11, 0.15); color: #fcd34d; }
html.dark .jio-card-cat-badge[data-cat="campus_life"]  { background: rgba(139, 92, 246, 0.15); color: #c4b5fd; }
html.dark .jio-card-cat-badge[data-cat="careers"]      { background: rgba(20, 184, 166, 0.15); color: #5eead4; }
html.dark .jio-card-cat-badge[data-cat="politics"]     { background: rgba(244, 63, 94, 0.15);  color: #fda4af; }
html.dark .jio-card-cat-badge[data-cat="science_tech"] { background: rgba(99, 102, 241, 0.15); color: #a5b4fc; }
html.dark .jio-card-cat-badge[data-cat="environment"]  { background: rgba(34, 197, 94, 0.15);  color: #86efac; }
html.dark .jio-card-cat-badge[data-cat="sports"]       { background: rgba(14, 165, 233, 0.15); color: #7dd3fc; }
html.dark .jio-card-cat-badge[data-cat="business"]     { background: rgba(249, 115, 22, 0.15); color: #fdba74; }
html.dark .jio-card-cat-badge[data-cat="health"]       { background: rgba(236, 72, 153, 0.15); color: #f9a8d4; }
html.dark .jio-card-cat-badge[data-cat="local"]        { background: rgba(6, 182, 212, 0.15);  color: #67e8f9; }
html.dark .jio-card-cat-badge[data-cat="opinion"]      { background: rgba(124, 58, 237, 0.15); color: #c4b5fd; }

/* ─── 11. City Badge ────────────────────────────────────────── */

.jio-card-city-badge {
  font-size: 10px;
  font-weight: 700;
  font-family: "Public Sans", sans-serif;
  padding: 3px 10px;
  border-radius: 9999px;
  background: rgba(5, 41, 98, 0.06);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 3px;
  line-height: 1.5;
}

html.dark .jio-card-city-badge {
  background: rgba(56, 189, 248, 0.1);
  color: #38bdf8;
}

/* ─── 12. Title & Summary ───────────────────────────────────── */

.jio-card-title {
  font-family: "Noto Serif", serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--on-surface);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.jio-card-summary {
  font-family: "Public Sans", sans-serif;
  font-size: 0.85rem;
  color: var(--on-surface-variant);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: 2px;
}

/* ─── 13. Divider ───────────────────────────────────────────── */

.jio-card-divider {
  height: 1px;
  background: var(--outline-variant);
  margin: 4px 0;
  opacity: 0.5;
}

/* ─── 14. Footer & Metadata ─────────────────────────────────── */

.jio-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  font-family: "Public Sans", sans-serif;
  color: var(--on-surface-variant);
  padding-top: 4px;
}

.jio-card-footer-left {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  min-width: 0;
}

.jio-card-source-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  /* background-color set via inline style */
}

/* ─── 15. Action Buttons ────────────────────────────────────── */

.jio-card-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.jio-card-action-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--on-surface-variant);
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 16px;
  padding: 0;
}

.jio-card-action-btn:hover {
  background: var(--surface-container);
  color: var(--primary);
}

.jio-card-action-btn.bookmarked {
  color: var(--primary);
  background: rgba(5, 41, 98, 0.08);
}

html.dark .jio-card-action-btn.bookmarked {
  background: rgba(173, 198, 255, 0.12);
}

/* ─── 16. External Article Variant ──────────────────────────── */

.jio-card.external {
  border-left: 3px solid;
  /* border-color set via inline style matching source colour */
}

/* ─── 17. Already-Read State ────────────────────────────────── */

.jio-card.read {
  opacity: 0.7;
}

.jio-card.read .jio-card-title::after {
  content: " ✓";
  font-size: 0.75em;
  color: var(--on-surface-variant);
  margin-left: 4px;
}

/* ─── 18. Skeleton Card & Shimmer ───────────────────────────── */

.jio-card-skeleton {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--jio-card-radius);
  overflow: hidden;
  box-shadow: var(--jio-card-shadow);
  opacity: 1 !important;
  animation: none !important;
  cursor: default;
}

html.dark .jio-card-skeleton {
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.skeleton-shimmer {
  background-color: var(--skeleton-base);
  background-image: linear-gradient(
    90deg,
    var(--skeleton-base) 0px,
    var(--skeleton-shine) 40px,
    var(--skeleton-base) 80px
  );
  background-size: 300% 100%;
  animation: shimmer 1.8s infinite linear;
  border-radius: 8px;
}

.skeleton-image  { aspect-ratio: 16 / 9; width: 100%; border-radius: 0; }
.skeleton-badge  { width: 70px; height: 16px; }
.skeleton-title  { height: 20px; width: 85%; }
.skeleton-title-2 { height: 20px; width: 60%; }
.skeleton-text   { height: 14px; width: 100%; }
.skeleton-text-2 { height: 14px; width: 75%; }
.skeleton-footer { height: 12px; width: 50%; }

/* ─── 19. Responsive Card Grid ──────────────────────────────── */

.jio-card-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .jio-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .jio-card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ─── 20. Source Filter Bar ─────────────────────────────────── */

.jio-source-filter {
  display: flex;
  gap: 8px;
  padding: 12px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;          /* Firefox */
  -ms-overflow-style: none;       /* IE / Edge */
}

.jio-source-filter::-webkit-scrollbar {
  display: none;
}

/* ─── 21. Source Filter Chip ────────────────────────────────── */

.jio-source-chip {
  padding: 6px 16px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 600;
  font-family: "Public Sans", sans-serif;
  border: 1px solid var(--outline-variant);
  background: var(--surface);
  color: var(--on-surface-variant);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.25s ease;
  flex-shrink: 0;
  line-height: 1.5;
}

.jio-source-chip:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.jio-source-chip.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(5, 41, 98, 0.25);
}

html.dark .jio-source-chip.active {
  background: var(--primary);
  color: #0f172a;
}

.jio-source-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.jio-source-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.jio-source-chip.active .jio-source-dot {
  background: #fff !important;
}

/* ─── 22. Feed End Indicator ────────────────────────────────── */

.jio-feed-end {
  text-align: center;
  padding: 40px 20px;
  color: var(--on-surface-variant);
  font-size: 14px;
  font-family: "Public Sans", sans-serif;
}

.jio-feed-end .material-symbols-outlined {
  font-size: 40px;
  color: var(--primary);
  margin-bottom: 8px;
  display: block;
}

/* ─── 23. Scroll Sentinel (IntersectionObserver target) ──── */

.jio-scroll-sentinel {
  height: 1px;
  width: 100%;
}

/* ─── 24. Animations ────────────────────────────────────────── */

@keyframes shimmer {
  0%   { background-position: -300% 0; }
  100% { background-position: 300% 0; }
}

@keyframes cardEntrance {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── 25. Accessibility — Reduced Motion ────────────────────── */

@media (prefers-reduced-motion: reduce) {
  .jio-card,
  .skeleton-shimmer {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }
  .jio-card {
    opacity: 1;
  }
}