@tailwind base;
@tailwind components;
@tailwind utilities;

@import url("https://fonts.googleapis.com/css2?family=Sora:wght@100..800&display=swap");
:root {
  --bg-light: #f8fafc;
  --card-bg: rgba(255, 255, 255, 0.6);
  --card-border: rgba(255, 255, 255, 0.4);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
  --text-primary: #1e293b;
  --text-secondary: #64748b;

  /* Gradient Palette */
  --grad-purple: linear-gradient(135deg, #a855f7 0%, #7e22ce 100%);
  --grad-blue: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  --grad-green: linear-gradient(135deg, #22c55e 0%, #15803d 100%);
  --grad-orange: linear-gradient(135deg, #f97316 0%, #c2410c 100%);
  --grad-pink: linear-gradient(135deg, #ec4899 0%, #be185d 100%);
  --grad-cyan: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
  --grad-indigo: linear-gradient(135deg, #6366f1 0%, #4338ca 100%);
}
body {
  font-family: "Sora", sans-serif;
}
.banner {
  background-image: url("../images/earth-half.png");
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
}

/* Mobile Dark Overlay */
@media (max-width: 767px) {
  .banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgb(0 7 37 / 65%);
    backdrop-filter: blur(2px);
    z-index: 1;
  }

  .banner > * {
    position: relative;
    z-index: 2;
  }
}

@keyframes floatSlow {
  0% {
    transform: translateY(-6px);
  }
  50% {
    transform: translateY(-12px);
  }
  100% {
    transform: translateY(-6px);
  }
}

.floating-card {
  animation: floatSlow 3s ease-in-out infinite;
  will-change: transform;
}
.float-delay-1 {
  animation-delay: 0s;
}

.float-delay-2 {
  animation-delay: 0.3s;
}

.float-delay-3 {
  animation-delay: 2.4s;
}

.gradient-text {
  background: linear-gradient(90deg, #a3e635, #34d399, #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Background Blobs */
.bg-blobs {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: blob-float 20s infinite alternate ease-in-out;
}

.blob-1 {
  width: 400px;
  height: 400px;
  background: #e0e7ff;
  top: -100px;
  left: -100px;
}

.blob-2 {
  width: 500px;
  height: 500px;
  background: #fdf2f8;
  bottom: -100px;
  right: -100px;
  animation-delay: -5s;
}

.blob-3 {
  width: 300px;
  height: 300px;
  background: #f0fdf4;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -10s;
}

@keyframes blob-float {
  0% {
    transform: translate(0, 0) scale(1);
  }

  100% {
    transform: translate(50px, 50px) scale(1.1);
  }
}

/* Main Portal Container */
.portal-container {
  width: 100%;
  min-height: 100vh;
  padding: 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

/* Search Section */
.search-section {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  max-width: 600px;
  z-index: 100;
  padding: 0;
}

.search-box-wrapper {
  position: relative;
  width: 100%;
  max-width: 600px;
  background: #f3f3f3;
  backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: 100px;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  box-shadow: 3px 3px 10px rgba(128, 128, 128, 0.419);
  transition:
    transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1),
    box-shadow 0.3s ease;
  animation: floating 6s infinite ease-in-out;
}

.search-box-wrapper:focus-within {
  transform: scale(1.02);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.search-icon {
  color: var(--text-secondary);
  margin-right: 1rem;
  width: 20px;
  height: 20px;
}

#programme-search {
  border: none;
  background: transparent;
  width: 100%;
  font-size: 1.1rem;
  color: var(--text-primary);
  outline: none;
}

#programme-search::placeholder {
  color: var(--text-secondary);
}

/* Categories Layout */
.categories-layout {
  flex-grow: 1;
  position: relative;
  width: 100%;
  max-width: 1300px;
  margin: 0 auto;
  height: 85vh;
  /* Consistent height for centering */
  min-height: 700px;
}

/* Card Wrapper (Positioning) */
.card-wrapper {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: 260px;
  transform: translate(-50%, -50%);
  /* Center the card on its coords */
  animation: organic-float 8s infinite ease-in-out;
  animation-delay: var(--delay);
  transition:
    opacity 0.5s ease,
    filter 0.5s ease,
    transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Category Card */
.category-card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 1.5rem;
  box-shadow: var(--glass-shadow);
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
  user-select: none;
  box-shadow: 3px 5px 13px #80808085;
}

.category-card:hover {
  transform: translateY(-10px) scale(1.02);
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.icon-box {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.icon-box i {
  width: 24px;
  height: 24px;
}

.programme-count {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(0, 0, 0, 0.05);
  youtube-slider.dragging .iframe-overlay {
    cursor: grabbing;
  }
  border-radius: 100px;
}

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
}

/* Floating Chips */
.chips-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0 0.5rem;
  justify-content: center;
}

.chip {
  font-size: 0.7rem;
  font-weight: 600;
  background: var(--card-bg);
  backdrop-filter: blur(8px);
  border: 1px solid var(--card-border);
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  color: var(--text-secondary);
  animation: organic-float 6s infinite ease-in-out alternate;
  animation-delay: calc(var(--delay) + 0.5s);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03);
}

/* Animations */
@keyframes floating {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

@keyframes organic-float {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }

  33% {
    transform: translateY(-15px) rotate(1deg);
  }

  66% {
    transform: translateY(5px) rotate(-1deg);
  }
}

/* Gradient Classes */
.gradient-purple {
  background: var(--grad-purple);
  box-shadow: 0 8px 20px rgba(168, 85, 247, 0.3);
}

.gradient-blue {
  background: var(--grad-blue);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.gradient-green {
  background: var(--grad-green);
  box-shadow: 0 8px 20px rgba(34, 197, 94, 0.3);
}

.gradient-orange {
  background: var(--grad-orange);
  box-shadow: 0 8px 20px rgba(249, 115, 22, 0.3);
}

.gradient-pink {
  background: var(--grad-pink);
  box-shadow: 0 8px 20px rgba(236, 72, 153, 0.3);
}

.gradient-cyan {
  background: var(--grad-cyan);
  box-shadow: 0 8px 20px rgba(6, 182, 212, 0.3);
}

.gradient-indigo {
  background: var(--grad-indigo);
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

/* Filtering States */
.card-wrapper.filtered-out {
  opacity: 0.3;
  filter: blur(8px);
  pointer-events: none;
  transform: scale(0.95);
}

.card-wrapper.filtered-in {
  opacity: 1;
  filter: none;
  pointer-events: all;
  transform: scale(1.05);
}

.card-wrapper.filtered-in .category-card {
  border-color: rgba(99, 102, 241, 0.5);
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
}

.card-wrapper.active-card .category-card {
  border-color: #6366f1;
  background: rgba(255, 255, 255, 0.9);
  transform: scale(1.05);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

/* YouTube slider styles */
.youtube-slider-wrapper {
  width: 100%;
  overflow: hidden;
}
.youtube-slider {
  display: flex;
  gap: 1rem;
  padding: 0.5rem 0;
  overflow-x: auto;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}
.youtube-slider::-webkit-scrollbar {
  display: none;
}
.slide {
  flex: 0 0 calc(33.333% - 0.67rem);
  box-sizing: border-box;
}
.video-thumb {
  display: block;
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.06);
}
.video-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.play-btn {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-weight: 700;
  border-radius: 999px;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

/* Responsive: 2 columns on tablet, 1 on mobile */
@media (max-width: 1024px) {
  .slide {
    flex: 0 0 calc(50% - 0.5rem);
  }
}
@media (max-width: 640px) {
  .slide {
    flex: 0 0 calc(100% - 0.5rem);
  }
}

/* Slider pagination dots */
.slider-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1rem;
}
.slider-dots .dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #cbd5e1;
  cursor: pointer;
  transition:
    transform 150ms ease,
    background 150ms ease;
}
.slider-dots .dot.active {
  background: #374151;
  transform: scale(1.2);
}

/* Related Section Styles */
.related-section {
  margin-top: 4rem;
  padding: 3rem 2rem;
  background: rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--card-border);
  border-radius: 40px 40px 0 0;
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

.related-section.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.related-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
  text-align: center;
  color: var(--text-primary);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.course-details-section {
  margin-top: 4rem;
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--card-border);
  border-radius: 40px 40px 0 0;
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

.course-details-section.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.details-grid {
  display: grid;
  gap: 1.5rem;
}

.course-detail-panel {
  display: none;
}

.course-detail-panel.visible {
  display: block;
}

.details-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.details-column {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 1.5rem;
  box-shadow: var(--glass-shadow);
}

.detail-number {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--grad-purple);
  color: white;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.85rem;
}

.details-column h4 {
  margin-bottom: 1rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.details-column ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.details-column li {
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
  padding: 0 1rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  color: var(--text-secondary);
  transition: background 0.2s ease;
}

.details-column li:hover {
  background: rgba(255, 255, 255, 0.8);
}

.details-column li::before {
  content: "→";
  color: var(--grad-purple);
  font-weight: 700;
}

.related-point {
  background: var(--card-bg);
  padding: 1rem 1.5rem;
  border-radius: 16px;
  border: 1px solid var(--card-border);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: var(--glass-shadow);
  transition:
    transform 0.3s ease,
    background 0.3s ease;
}

.related-point:hover {
  transform: translateY(-5px);
  background: white;
}

.related-point::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--grad-purple);
}

/* Responsiveness Update */
@media (max-width: 1200px) {
  .categories-layout {
    height: auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 1rem;
  }

  .search-section {
    position: relative;
    top: auto;
    left: auto;
    transform: none;
    margin: 2rem auto;
  }

  .card-wrapper {
    position: relative;
    left: auto;
    top: auto;
    width: 100%;
    transform: none;
    animation: floating 6s infinite ease-in-out;
  }
}

@media (max-width: 768px) {
  .details-column {
    padding: 10px;
  }
  .course-details-section {
    margin-top: 4rem;
    padding: 3rem 0;
  }
  .search-section {
    padding: 0;
    position: relative;
    top: auto;
    left: auto;
    transform: none;
    background: transparent;
    backdrop-filter: none;
  }

  .categories-layout {
    display: flex;
    flex-direction: column;
    gap: 0rem;
  }

  .portal-container {
    padding: 1rem;
    justify-content: flex-start;
  }
}

/* Particles */
.particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: -1;
}

.particle {
  position: absolute;
  background: rgba(99, 102, 241, 0.2);
  border-radius: 50%;
  animation: float-particle 15s infinite linear;
}

@keyframes float-particle {
  0% {
    transform: translate(0, 0);
    opacity: 0;
  }

  50% {
    opacity: 0.5;
  }

  100% {
    transform: translate(100px, -100px);
    opacity: 0;
  }
}

/* Accessibility */
.category-card:focus-visible {
  outline: 3px solid #6366f1;
  outline-offset: 4px;
}

/* Hover toggler: reveal description on parent hover */
.hover-toggler-card {
  position: relative;
  min-height: 130px;
}
.hover-toggler-card .hover-toggler-desc {
  max-height: 0;
  opacity: 0;
  transform: translateY(8px);
  overflow: hidden;
  transition:
    max-height 0.35s ease,
    opacity 0.25s ease 0s,
    transform 0.35s ease;
}
.hover-toggler-card:hover .hover-toggler-desc,
.hover-toggler-card:focus-within .hover-toggler-desc {
  max-height: 200px; /* enough to show content; adjust if needed */
  opacity: 1;
  transform: translateY(0);
}