client/src/index.css

/* Design System & Core Styles - Wise TV */
:root {
  /* HSL Color Palette */
  --bg-deep: hsl(224, 71%, 4%);
  --bg-dark: hsl(222, 47%, 7%);
  --bg-card: hsla(223, 47%, 11%, 0.65);
  --border-glow: rgba(99, 102, 241, 0.15);
  
  --primary: hsl(250, 95%, 68%);
  --primary-glow: hsla(250, 95%, 68%, 0.35);
  --secondary: hsl(265, 89%, 60%);
  
  --accent: hsl(190, 100%, 50%);
  --accent-glow: hsla(190, 100%, 50%, 0.25);
  
  --text-main: hsl(210, 40%, 98%);
  --text-muted: hsl(217, 30%, 75%);
  --text-dark: hsl(215, 25%, 55%);
  
  --live-red: hsl(0, 84%, 60%);
  --live-red-glow: hsla(0, 84%, 60%, 0.4);
  
  /* Layout Values */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
}

/* Global Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: radial-gradient(circle at top right, var(--secondary), transparent 45%),
              radial-gradient(circle at bottom left, var(--bg-deep), var(--bg-dark));
  background-color: var(--bg-deep);
  color: var(--text-main);
  min-height: 100vh;
  overflow: hidden;
}

h1, h2, h3, h4, .title-font {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.02);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* Glassmorphism Panel Utility */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
}

/* Glow Borders */
.glow-card {
  position: relative;
}

.glow-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.5px;
  background: linear-gradient(135deg, var(--primary), var(--accent), transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.4;
  transition: var(--transition);
}

.glow-card:hover::before {
  opacity: 1;
}

/* Pulse Animation for Live Status */
.pulse-live {
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--live-red);
  border-radius: 50%;
  box-shadow: 0 0 0 0 var(--live-red-glow);
  animation: pulse 1.6s infinite;
}

@keyframes pulse {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 var(--live-red-glow);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(0, 0, 0, 0);
  }
  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(0, 0, 0, 0);
  }
}

/* CSS Grid Layout */
.app-container {
  display: grid;
  grid-template-columns: 320px 1fr;
  grid-template-rows: 70px 1fr;
  height: 100vh;
  width: 100vw;
}

.app-header {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(10, 11, 20, 0.5);
  backdrop-filter: blur(10px);
  z-index: 10;
}

.app-sidebar {
  grid-column: 1;
  border-right: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  height: calc(100vh - 70px);
  overflow-y: auto;
  padding: 16px;
  background: rgba(10, 11, 20, 0.3);
}

.app-main {
  grid-column: 2;
  display: grid;
  grid-template-columns: 1fr;
  height: calc(100vh - 70px);
  overflow: hidden;
  background: rgba(10, 11, 20, 0.1);
}

@media (max-width: 1024px) {
  .app-container {
    grid-template-columns: 1fr;
    grid-template-rows: 70px auto 1fr;
  }
  .app-sidebar {
    grid-column: 1;
    height: auto;
    max-height: 250px;
  }
  .app-main {
    grid-column: 1;
    grid-template-columns: 1fr;
    grid-template-rows: 1fr auto;
    height: auto;
    overflow-y: auto;
  }
}

/* Components Styling */
.input-search {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  padding: 10px 14px 10px 38px;
  color: var(--text-main);
  outline: none;
  font-size: 14px;
  transition: var(--transition);
}

.input-search:focus {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--primary);
  box-shadow: 0 0 10px var(--primary-glow);
}

/* Neon buttons */
.btn-neon {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--text-main);
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  border: none;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 0 15px var(--primary-glow);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-neon:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px var(--primary-glow), 0 0 10px var(--accent-glow);
}

.btn-neon:active {
  transform: translateY(0);
}

/* Category Tabs */
.tab-container {
  display: flex;
  gap: 6px;
  margin-top: 14px;
}

.tab-btn {
  flex: 1;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
}

.tab-btn.active {
  background: var(--primary-glow);
  border-color: var(--primary);
  color: var(--text-main);
}

/* Channel Card */
.channel-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
}

.channel-card:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.06);
}

.channel-card.active {
  background: linear-gradient(90deg, var(--primary-glow), transparent);
  border-color: var(--primary);
}

.channel-logo-container {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.channel-logo-container img {
  width: 80%;
  height: 80%;
  object-fit: contain;
}

/* Video Player controls */
.player-container {
  position: relative;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  box-shadow: var(--shadow);
}

.player-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.player-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent 30%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.3s;
}

.player-container:hover .player-overlay {
  opacity: 1;
}

/* Match item in World Cup schedule */
.match-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  padding: 12px;
  margin-bottom: 10px;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.match-card:hover {
  background: rgba(255, 255, 255, 0.04);
  transform: translateX(4px);
}

/* Mock chat elements */
.chat-msg {
  animation: slideIn 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28) forwards;
  opacity: 0;
  transform: translateY(10px);
}

@keyframes slideIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}