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

:root {
  --bg-deep:      #0a0a1a;
  --bg-card:      rgba(255, 255, 255, 0.04);
  --border-card:  rgba(255, 255, 255, 0.08);
  --text-primary: #f0f0f5;
  --text-muted:   #8888a8;
  --accent-x:     #6c63ff;
  --accent-x-glow:#6c63ff55;
  --accent-o:     #ff6b81;
  --accent-o-glow:#ff6b8155;
  --accent-green: #34d399;
  --radius:       16px;
  --radius-sm:    10px;
  --transition:   .25s cubic-bezier(.4,0,.2,1);
  --font:         'Inter', system-ui, -apple-system, sans-serif;
}

html { font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100dvh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  position: relative;
}

/* ── Animated Background Orbs ──────────────────────────────────────── */
.bg-orbs { position: fixed; inset: 0; z-index: 0; pointer-events: none; }
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: .45;
  animation: float 18s ease-in-out infinite alternate;
}
.orb-1 { width: 420px; height: 420px; background: var(--accent-x); top: -10%; left: -8%;  animation-delay: 0s; }
.orb-2 { width: 350px; height: 350px; background: var(--accent-o); bottom: -12%; right: -6%; animation-delay: -5s; }
.orb-3 { width: 260px; height: 260px; background: #7c3aed; top: 55%; left: 50%;  animation-delay: -10s; }
.orb-4 { width: 300px; height: 300px; background: #0ea5e9; top: 10%; right: 25%; animation-delay: -14s; opacity: .3; }

@keyframes float {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(40px, -30px) scale(1.12); }
  100% { transform: translate(-20px, 20px) scale(.95); }
}

/* ── Glass Card ────────────────────────────────────────────────────── */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  position: relative;
  z-index: 1;
  box-shadow: 0 8px 32px rgba(0,0,0,.35);
}

/* ── Views ─────────────────────────────────────────────────────────── */
.view {
  display: none;
  position: absolute;
  inset: 0;
  justify-content: center;
  align-items: center;
  z-index: 1;
}
.view.active { display: flex; }

/* ── Lobby ─────────────────────────────────────────────────────────── */
.lobby-card {
  width: 100%;
  max-width: 400px;
  text-align: center;
  animation: slideUp .5s ease-out;
}

.logo {
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: 2px;
  margin-bottom: .15rem;
  user-select: none;
}
.logo-x { color: var(--accent-x); text-shadow: 0 0 24px var(--accent-x-glow); }
.logo-o { color: var(--accent-o); text-shadow: 0 0 24px var(--accent-o-glow); margin-left: 4px; }

h1 {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -.5px;
  margin-bottom: .15rem;
}

.subtitle {
  color: var(--text-muted);
  font-size: .85rem;
  margin-bottom: 1.8rem;
}

.input-group { text-align: left; margin-bottom: 1.2rem; }
.input-group label {
  display: block;
  font-size: .75rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: .35rem;
  letter-spacing: .3px;
  text-transform: uppercase;
}

input {
  width: 100%;
  padding: .7rem 1rem;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,.05);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: .95rem;
  outline: none;
  transition: border var(--transition);
}
input:focus { border-color: var(--accent-x); }
input::placeholder { color: var(--text-muted); opacity: .6; }

/* ── Buttons ───────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .75rem 1.5rem;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.btn-primary {
  width: 100%;
  background: linear-gradient(135deg, var(--accent-x), #7c3aed);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-x-glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px var(--accent-x-glow);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: rgba(255,255,255,.08);
  color: var(--text-primary);
  border: 1px solid var(--border-card);
  padding: .7rem 1.4rem;
}
.btn-secondary:hover { background: rgba(255,255,255,.14); }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-card);
  font-size: .85rem;
}
.btn-ghost:hover { color: var(--text-primary); border-color: var(--accent-x); }

/* ── Divider ───────────────────────────────────────────────────────── */
.divider {
  display: flex;
  align-items: center;
  margin: 1.4rem 0;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-card);
}
.divider span {
  padding: 0 .8rem;
  font-size: .78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .5px;
}

/* ── Join row ──────────────────────────────────────────────────────── */
.join-row {
  display: flex;
  gap: .6rem;
}
.join-row input {
  flex: 1;
  text-transform: uppercase;
  letter-spacing: 3px;
  text-align: center;
  font-weight: 700;
}

.error-msg {
  color: var(--accent-o);
  font-size: .8rem;
  margin-top: .8rem;
  min-height: 1.2rem;
}

/* ── Waiting ───────────────────────────────────────────────────────── */
.waiting-card {
  text-align: center;
  max-width: 400px;
  width: 100%;
  animation: slideUp .5s ease-out;
}
.waiting-card h2 { font-size: 1.3rem; margin-bottom: .6rem; }

.room-code-label {
  color: var(--text-muted);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: .5rem;
}
.room-code-display {
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: 8px;
  color: var(--accent-x);
  text-shadow: 0 0 20px var(--accent-x-glow);
  margin-bottom: 1rem;
  user-select: all;
}

/* loader dots */
.loader { display: flex; justify-content: center; gap: 6px; margin-top: 1.5rem; }
.loader span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent-x);
  animation: bounce 1.4s ease-in-out infinite;
}
.loader span:nth-child(2) { animation-delay: .16s; }
.loader span:nth-child(3) { animation-delay: .32s; }
@keyframes bounce {
  0%, 80%, 100% { transform: scale(0); opacity: .4; }
  40% { transform: scale(1); opacity: 1; }
}

/* ── Game Header ───────────────────────────────────────────────────── */
.game-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 480px;
  padding: 0 .5rem;
  margin-bottom: 1.2rem;
  z-index: 1;
  position: relative;
}

.player-tag {
  display: flex;
  align-items: center;
  gap: .45rem;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-sm);
  padding: .5rem .85rem;
}
.player-tag .symbol {
  font-weight: 900;
  font-size: 1.1rem;
}
.player-x .symbol { color: var(--accent-x); }
.player-o .symbol { color: var(--accent-o); }

.player-tag .pname {
  font-size: .8rem;
  max-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.player-tag .score {
  font-weight: 800;
  font-size: 1rem;
  min-width: 1.2rem;
  text-align: center;
}

.round-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .25rem;
}
.turn-badge {
  font-size: .8rem;
  font-weight: 700;
  padding: .25rem .75rem;
  border-radius: 20px;
  background: rgba(108,99,255,.15);
  color: var(--accent-x);
  border: 1px solid rgba(108,99,255,.25);
  transition: all var(--transition);
}
.turn-badge.o-turn {
  background: rgba(255,107,129,.15);
  color: var(--accent-o);
  border-color: rgba(255,107,129,.25);
}
.draw-score { font-size: .7rem; color: var(--text-muted); }

/* ── Board ─────────────────────────────────────────────────────────── */
#game {
  flex-direction: column;
  padding: 1rem;
}

.board-wrapper { position: relative; z-index: 1; }

.board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  width: min(88vw, 380px);
  aspect-ratio: 1;
}

.cell {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 3rem;
  font-weight: 900;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  user-select: none;
}
.cell:hover:not(.taken) {
  background: rgba(255,255,255,.08);
  transform: scale(1.04);
}
.cell.taken { cursor: default; }
.cell.x-mark { color: var(--accent-x); text-shadow: 0 0 18px var(--accent-x-glow); }
.cell.o-mark { color: var(--accent-o); text-shadow: 0 0 18px var(--accent-o-glow); }
.cell.win-cell {
  animation: winPulse .6s ease-in-out infinite alternate;
  border-color: var(--accent-green);
  box-shadow: 0 0 20px rgba(52,211,153,.3);
}

@keyframes winPulse {
  from { transform: scale(1); }
  to   { transform: scale(1.06); }
}

.cell.pop {
  animation: popIn .3s ease-out;
}
@keyframes popIn {
  0%   { transform: scale(0); }
  70%  { transform: scale(1.15); }
  100% { transform: scale(1); }
}

/* ── Result Overlay ────────────────────────────────────────────────── */
.result-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10,10,26,.7);
  backdrop-filter: blur(6px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10;
  animation: fadeIn .3s ease;
}
.result-overlay.hidden { display: none; }

.result-card {
  text-align: center;
  max-width: 340px;
  width: 90%;
  animation: slideUp .4s ease-out;
}
.result-card h2 {
  font-size: 1.6rem;
  margin-bottom: 1.2rem;
}

/* ── Room Code Footer ──────────────────────────────────────────────── */
.room-code-footer {
  position: relative;
  z-index: 1;
  margin-top: 1rem;
  font-size: .75rem;
  color: var(--text-muted);
  letter-spacing: 1px;
}
.room-code-footer strong { color: var(--accent-x); letter-spacing: 3px; }

/* ── Toast ─────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-o);
  color: #fff;
  padding: .7rem 1.4rem;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 600;
  z-index: 20;
  box-shadow: 0 4px 20px rgba(255,107,129,.4);
  animation: slideUp .4s ease-out;
}
.toast.hidden { display: none; }

/* ── Animations ────────────────────────────────────────────────────── */
@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ── Responsive ────────────────────────────────────────────────────── */
@media (max-width: 500px) {
  .glass-card { padding: 2rem 1.4rem; }
  .logo { font-size: 2.4rem; }
  h1 { font-size: 1.3rem; }
  .game-header { gap: .4rem; }
  .player-tag { padding: .4rem .6rem; gap: .3rem; }
  .player-tag .pname { max-width: 50px; font-size: .72rem; }
  .cell { font-size: 2.2rem; }
}