/* Base theme variables */
:root {
  --color-bg: #0a0a0a;
  --color-surface: #1f1f1f;
  --color-border: #333;
  --color-text: #f5f5f5;
  --color-primary: #3b82f6;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: system-ui, sans-serif;
}

/* Layout containers */
.layout-center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.layout-stack {
  display: flex;
  flex-direction: column;
}

.layout-grid {
  display: grid;
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(0.5rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.3s ease-in-out;
}

/* Message list */
.message-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem;
  overflow-y: auto;
}

.message {
  background: var(--color-surface);
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem;
}

.message.me {
  align-self: flex-end;
  background: var(--color-primary);
  color: #fff;
}

/* Video tiles */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.5rem;
}

.video-tile {
  position: relative;
  background: var(--color-surface);
  border-radius: 0.5rem;
  overflow: hidden;
}

.video-tile video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Controls */
button,
.btn {
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 0.375rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: background 0.2s ease-in-out;
}

button:hover,
.btn:hover {
  background: #2563eb;
}

input,
textarea,
.input {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 0.375rem;
  padding: 0.5rem;
}

input:focus,
textarea:focus,
.input:focus {
  outline: none;
  border-color: var(--color-primary);
}