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

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --border: #2a2d3a;
  --text: #e4e4e7;
  --text-muted: #888;
  --accent: #6c63ff;
  --accent-hover: #5a52e0;
  --accent2: orange;
  --danger: #e5484d;
  --success: #30a46c;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
}

/* Screen toggling */
.screen {
  display: none;
  width: 100%;
  max-width: 480px;
}
.screen.active {
  display: block;
}

/* Welcome screen */
#welcome-screen {
  padding-top: 15vh;
  text-align: center;
}

#welcome-screen h1 {
  font-size: 1.8rem;
  margin-bottom: 0.25rem;
}

.subtitle {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.form-group {
  text-align: left;
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
}

input[type="text"] {
  width: 100%;
  padding: 0.7rem 0.9rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.15s;
}

input[type="text"]:focus {
  border-color: var(--accent);
}

#code-input {
  text-transform: uppercase;
  font-family: "SF Mono", "Fira Code", monospace;
  letter-spacing: 0.15em;
  font-size: 1.1rem;
  text-align: center;
}

/* Buttons */
.btn {
  display: inline-block;
  width: 100%;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition:
    background 0.15s,
    opacity 0.15s;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--accent);
}

.btn-small {
  width: auto;
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-icon {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.3rem;
  line-height: 1;
}

.divider {
  display: flex;
  align-items: center;
  margin: 1.5rem 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.divider span {
  padding: 0 0.75rem;
}

/* Channel screen */
.channel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.channel-code-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.channel-code {
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent);
}

/* Map */
.map {
  width: 100%;
  height: 60vh;
  border-radius: 10px;
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  overflow: hidden;
}

.map-marker {
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 1px 3px rgba(0, 0, 0, 0.5));
  transition: transform 0.3s ease;
}

/* Peer list */
.peer-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 3rem 1rem;
}

.peer-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.peer-card.self {
  border-color: var(--accent);
}

.peer-compass {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.peer-compass .arrow {
  font-size: 1.4rem;
  transition: transform 0.3s ease;
  display: inline-block;
}

.peer-info {
  flex: 1;
  min-width: 0;
}

.peer-name {
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.peer-name .you-badge {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 400;
  margin-left: 0.4rem;
}

.peer-coords {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: "SF Mono", "Fira Code", monospace;
}

.peer-meta {
  text-align: right;
  flex-shrink: 0;
}

.peer-heading {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.peer-time {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(100%);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.7rem 1.2rem;
  border-radius: 8px;
  font-size: 0.9rem;
  opacity: 0;
  transition:
    transform 0.25s ease,
    opacity 0.25s ease;
  pointer-events: none;
  max-width: 90vw;
  text-align: center;
  z-index: 100;
}

.toast.visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast.error {
  border-color: var(--danger);
}