:root {
  /* Colors */
  --color-bg-base: #0a0a0a;
  --color-surface-base: #141414;
  --color-surface-hover: #1c1c1c;
  --color-border-base: #595959;
  
  --color-text-main: #f0f0f0;
  --color-text-muted: #959595;
  
  --color-accent-base: #E5FF00;
  --color-accent-hover: #B8CC00;
  --color-accent-muted: rgba(229, 255, 0, 0.05);
  
  --color-sentiment-pos: #00FF66;
  --color-sentiment-neg: #FF0055;
  --color-sentiment-neu: #888888;
  --color-sentiment-mix: #FFBB00;
  --color-error-bg: rgba(255, 0, 85, 0.1);

  /* Spacing Scale */
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.15rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-16: 4rem;

  /* Typography Ramp */
  --text-xs: 0.75rem;
  --text-sm: 0.85rem;
  --text-base: 1rem;
  --text-lg: 1.2rem;
  --text-xl: 1.5rem;
  --text-2xl: 2.2rem;
  --text-3xl: 2.5rem;

  /* Radii & Layout */
  --radius-sm: 4px;
  --radius-full: 50%;
  --focus-ring: 2px solid var(--color-accent-base);
  --focus-offset: 2px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background-color: var(--color-bg-base);
  color: var(--color-text-main);
  min-height: 100vh;
  margin: 0;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  overflow-x: hidden;
}

/* CRT Noise Overlay */
.noise-overlay {
  position: fixed;
  top: 0; left: 0; width: 100vw; height: 100vh;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Layout */
.layout-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 100vh;
  width: 100%;
}

.sidebar {
  background: var(--color-surface-base);
  border-right: 1px solid var(--color-border-base);
  padding: var(--space-10);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.content-area {
  padding: var(--space-10) var(--space-16);
  min-width: 0; /* Prevents grid blowout */
}

@media (max-width: 900px) {
  .layout-grid { 
    grid-template-columns: 1fr; 
  }
  .sidebar { 
    border-right: none; 
    border-bottom: 1px solid var(--color-border-base);
    position: relative;
    height: auto;
    overflow-y: visible;
  }
  .content-area { 
    padding: var(--space-8) var(--space-6); 
  }
}

/* Typography & Brand */
.brand {
  margin-bottom: var(--space-16);
}

.logo-text {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: var(--text-2xl);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-text-main);
  text-transform: uppercase;
  margin-bottom: var(--space-4);
  max-width: min-content;
  word-wrap: break-word;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-accent-base);
}

.pulse {
  width: 8px; height: 8px;
  background: var(--color-accent-base);
  border-radius: var(--radius-full);
  animation: blink 1.5s infinite;
}

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

/* Controls */
.control-panel {
  flex-grow: 1;
}

.panel-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.brutal-input {
  width: 100%;
  background: transparent;
  border: 1px solid var(--color-border-base);
  color: var(--color-text-main);
  padding: var(--space-4);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: var(--text-base);
  outline: none;
  border-radius: var(--radius-sm);
  transition: border-color 0.2s, background 0.2s;
}

.brutal-input:focus {
  border-color: var(--color-accent-base);
  background: var(--color-accent-muted);
}

.brutal-slider {
  width: 100%;
  appearance: none;
  height: 4px;
  background: var(--color-border-base);
  outline: none;
  margin-top: var(--space-4);
  margin-bottom: var(--space-6);
}

.brutal-slider::-webkit-slider-thumb {
  appearance: none;
  width: 44px;
  height: 44px;
  background: var(--color-accent-base);
  cursor: pointer;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-bg-base);
  transition: transform 0.2s;
}

.brutal-slider::-moz-range-thumb {
  width: 44px;
  height: 44px;
  background: var(--color-accent-base);
  cursor: pointer;
  border-radius: var(--radius-sm);
  border: 2px solid var(--color-bg-base);
}

.brutal-slider:focus-visible::-webkit-slider-thumb {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.slider-val {
  font-size: var(--text-sm);
  color: var(--color-accent-base);
  text-align: right;
  font-weight: 700;
  margin-bottom: var(--space-8);
}

.brutal-btn {
  width: 100%;
  background: var(--color-text-main);
  color: var(--color-bg-base);
  border: none;
  padding: var(--space-5);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: var(--text-base);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}

.brutal-btn:hover {
  background: var(--color-accent-base);
}

.brutal-btn:active {
  transform: scale(0.98);
}

.brutal-btn:disabled {
  background: var(--color-border-base);
  color: var(--color-text-muted);
  cursor: not-allowed;
}

.error-box {
  margin-top: var(--space-4);
  padding: var(--space-4);
  background: var(--color-error-bg);
  border-left: 4px solid var(--color-sentiment-neg);
  color: var(--color-sentiment-neg);
  font-size: var(--text-sm);
  font-weight: 500;
}

.meta-info {
  margin-top: var(--space-8);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.meta-info .smallcaps {
  margin-top: var(--space-2);
  font-weight: 700;
  color: var(--color-border-base);
}

/* Main Content Area */
.empty-state {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: var(--color-border-base);
  border: 1px dashed var(--color-border-base);
  padding: 4rem;
}

.crosshair {
  width: 40px; height: 40px;
  border: 2px solid var(--color-border-base);
  border-radius: var(--radius-full);
  position: relative;
  margin-bottom: var(--space-6);
}
.crosshair::before { content: ''; position: absolute; top: 50%; left: -10px; right: -10px; height: 2px; background: var(--color-border-base); }
.crosshair::after { content: ''; position: absolute; left: 50%; top: -10px; bottom: -10px; width: 2px; background: var(--color-border-base); }

.empty-state h2 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: 0;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.loading-state {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.loader-bar {
  width: 200px;
  height: 2px;
  background: var(--color-border-base);
  position: relative;
  overflow: hidden;
  margin-bottom: var(--space-4);
}

.loader-bar::after {
  content: '';
  position: absolute;
  top: 0; left: 0; height: 100%; width: 50px;
  background: var(--color-accent-base);
  animation: scan 1s infinite ease-in-out alternate;
}

@keyframes scan { 0% { left: 0; } 100% { left: 150px; } }

/* Results */
.video-meta-card {
  border-bottom: 2px solid var(--color-border-base);
  padding-bottom: var(--space-8);
  margin-bottom: var(--space-8);
}

.meta-header {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-accent-base);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.video-title {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: var(--space-6);
}

.video-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.stat-pill {
  background: var(--color-surface-base);
  border: 1px solid var(--color-border-base);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

.stat-pill span {
  color: var(--color-text-main);
  font-weight: 700;
  margin-left: var(--space-2);
}

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-6);
  margin-bottom: calc(var(--space-16) * 0.75);
}

.dash-card {
  background: var(--color-surface-base);
  border: 1px solid var(--color-border-base);
  padding: var(--space-6);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.dash-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 4px; height: 100%;
  background: var(--color-border-base);
}

.total-card::before { background: var(--color-text-main); }
.warning-card::before { background: var(--color-sentiment-neg); }

.dash-title {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.dash-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.2;
  word-break: break-all;
}

.sentiment-dist {
  grid-column: 1 / -1;
}

.distribution-bars {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.dist-row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.dist-label {
  font-weight: 700;
  font-size: var(--text-sm);
  width: 40px;
}

.dist-label.pos { color: var(--color-sentiment-pos); }
.dist-label.neu { color: var(--color-sentiment-neu); }
.dist-label.neg { color: var(--color-sentiment-neg); }
.dist-label.mixed { color: var(--color-sentiment-mix); }

.bar-track {
  flex-grow: 1;
  height: 8px;
  background: var(--color-surface-hover);
}

.bar-fill {
  height: 100%;
  width: 0%;
  transition: width 1s cubic-bezier(0.2, 1, 0.3, 1);
}

.pos-bg { background: var(--color-sentiment-pos); }
.neu-bg { background: var(--color-sentiment-neu); }
.neg-bg { background: var(--color-sentiment-neg); }
.mixed-bg { background: var(--color-sentiment-mix); }

.dist-count {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  width: 50px;
  text-align: right;
}

/* Comments List */
.section-heading {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  font-size: var(--text-lg);
  border-bottom: 1px solid var(--color-border-base);
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-6);
  letter-spacing: 0.05em;
}

.comments-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.comment-item {
  background: var(--color-surface-base);
  border: 1px solid var(--color-border-base);
  padding: var(--space-6);
  transition: transform 0.2s;
}

.comment-item:hover {
  transform: translateX(5px);
  border-color: var(--color-border-base);
}

.comment-header {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
}

.comment-author {
  font-weight: 700;
  color: var(--color-accent-base);
  word-break: break-all;
}

.comment-stats {
  color: var(--color-text-muted);
  display: flex;
  gap: var(--space-4);
}

.comment-text {
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text-main);
  word-break: break-word;
}

/* Animation utilities */
.slide-up-item {
  opacity: 0;
  transform: translateY(20px);
  animation: slideIn 0.5s forwards;
}

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

*:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.brutal-input:hover {
  border-color: var(--color-text-muted);
}

.brutal-input:disabled {
  background: var(--color-surface-hover);
  color: var(--color-text-muted);
  cursor: not-allowed;
  border-color: var(--color-border-base);
}

.brutal-input[aria-invalid="true"] {
  border-color: var(--color-sentiment-neg);
}

@media (max-width: 1024px) {
  .top-comments-section {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 480px) {
  .content-area {
    padding: var(--space-4) var(--space-2);
  }
  .brand {
    margin-bottom: var(--space-8);
  }
  .video-stats {
    flex-direction: column;
  }
}