/* ── Fonts ─────────────────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500&family=Space+Mono:ital,wght@0,400;1,400&display=swap');

/* ── Reset & base ──────────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0d0d0f;
  --surface: #141418;
  --border: rgba(255,255,255,0.07);
  --text: #e8e8e0;
  --muted: rgba(232,232,224,0.35);
  --accent: #c8ff00;
  --font-sans: 'Space Grotesk', sans-serif;
  --font-mono: 'Space Mono', monospace;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

/* ── Utility ───────────────────────────────────────────────────────────── */
.hidden {
  display: none !important;
}

.fade-out {
  animation: fadeOut 0.5s ease forwards;
}

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

@keyframes fadeOut {
  to { opacity: 0; transform: scale(0.98); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Entry Screen ──────────────────────────────────────────────────────── */
#entry-screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  z-index: 100;
  overflow: hidden;
}

.entry-noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  pointer-events: none;
  opacity: 0.6;
}

.entry-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.entry-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.entry-title {
  font-size: clamp(3rem, 10vw, 7rem);
  font-weight: 300;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--text);
}

#entry-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 260px;
}

#entry-form input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text);
  text-align: center;
  outline: none;
  transition: border-color 0.2s;
}

#entry-form input::placeholder {
  color: var(--muted);
}

#entry-form input:focus {
  border-bottom-color: var(--accent);
}

#entry-form button {
  background: transparent;
  border: 1px solid var(--border);
  padding: 10px 28px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

#entry-form button:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ── Room Screen ───────────────────────────────────────────────────────── */
#room-screen {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
}

/* ── Cursor layer ──────────────────────────────────────────────────────── */
#cursor-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
}

.remote-cursor {
  position: absolute;
  transform: translate(-2px, -2px);
  transition: left 0.05s linear, top 0.05s linear;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.cursor-pointer {
  width: 14px;
  height: 20px;
  filter: drop-shadow(0 1px 4px rgba(0,0,0,0.6));
}

.cursor-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  background: currentColor;
  color: var(--bg);
  padding: 2px 5px;
  border-radius: 3px;
  white-space: nowrap;
  opacity: 0.9;
}

/* ── Reaction stage ────────────────────────────────────────────────────── */
#reaction-stage {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 40;
  overflow: hidden;
}

.floating-reaction {
  position: absolute;
  bottom: 80px;
  font-size: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  animation: floatUp 2.8s ease forwards;
}

.floating-reaction-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  opacity: 0.7;
}

@keyframes floatUp {
  0%   { opacity: 0;   transform: translateY(0) scale(0.7); }
  15%  { opacity: 1;   transform: translateY(-20px) scale(1.1); }
  80%  { opacity: 0.8; transform: translateY(-140px) scale(1); }
  100% { opacity: 0;   transform: translateY(-200px) scale(0.9); }
}

/* ── Presence bar ──────────────────────────────────────────────────────── */
#presence-bar {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  flex-shrink: 0;
}

.presence-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  flex-shrink: 0;
}

#presence-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.presence-dot {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--user-color, var(--accent));
  padding: 3px 10px;
  border: 1px solid currentColor;
  border-radius: 99px;
  opacity: 0.85;
  animation: presencePop 0.3s ease;
}

@keyframes presencePop {
  from { opacity: 0; transform: scale(0.85); }
  to   { opacity: 0.85; transform: scale(1); }
}

/* ── Messages area ─────────────────────────────────────────────────────── */
#messages-area {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

#messages-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: auto;
}

.message {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 10px;
  max-width: 680px;
  animation: msgIn 0.25s ease;
}

@keyframes msgIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.message--mine {
  align-self: flex-end;
}

.msg-author {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 400;
  white-space: nowrap;
  flex-shrink: 0;
}

.msg-text {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  word-break: break-word;
  color: var(--text);
}

.msg-time {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--muted);
  white-space: nowrap;
  flex-shrink: 0;
  align-self: center;
}

.message--system {
  display: block;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding: 4px 0;
}

/* ── Input bar ─────────────────────────────────────────────────────────── */
#input-bar {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
}

#reaction-picker {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  padding: 6px 16px;
}

.reaction-btn {
  background: transparent;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: background 0.15s, transform 0.1s;
  color: var(--muted);
  filter: grayscale(0.3);
}

.reaction-btn:hover {
  background: rgba(255,255,255,0.06);
  transform: scale(1.2);
  color: var(--text);
  filter: none;
}

.reaction-btn:active {
  transform: scale(0.95);
}

#message-form {
  display: flex;
  align-items: center;
  gap: 0;
}

#message-input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 16px 20px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text);
  outline: none;
}

#message-input::placeholder {
  color: var(--muted);
}

#message-form button {
  background: transparent;
  border: none;
  border-left: 1px solid var(--border);
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s;
  flex-shrink: 0;
}

#message-form button:hover {
  color: var(--accent);
}

/* ── Scrollbar ─────────────────────────────────────────────────────────── */
#messages-area::-webkit-scrollbar {
  width: 4px;
}

#messages-area::-webkit-scrollbar-track {
  background: transparent;
}

#messages-area::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}