/* KaBoomz — shared brand styles (DESIGN.md: fun, colourful, Kahoot-like;
   purple/magenta stage, multicolour tiles, big type, mobile-first). */

:root {
  --purple: #4c1d95;
  --purple-deep: #2e1065;
  --violet: #7c3aed;
  --magenta: #db2777;
  --pink: #ec4899;
  --yellow: #facc15;
  --orange: #fb923c;
  --cyan: #22d3ee;
  --green: #4ade80;
  --white: #ffffff;
  --ink: #1f1235;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: 'Segoe UI', 'Trebuchet MS', system-ui, -apple-system, sans-serif;
  background:
    radial-gradient(circle at 15% 15%, rgba(236, 72, 153, 0.35) 0%, transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(124, 58, 237, 0.45) 0%, transparent 50%),
    linear-gradient(160deg, var(--violet) 0%, var(--purple) 45%, var(--purple-deep) 100%);
  background-attachment: fixed;
  color: var(--white);
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

/* ---------- brand ---------- */

.brand {
  font-size: clamp(3rem, 12vw, 5.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  text-align: center;
  color: var(--yellow);
  text-shadow:
    3px 3px 0 var(--magenta),
    6px 6px 0 rgba(31, 18, 53, 0.35);
  transform: rotate(-2deg);
}

.brand-small {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  text-shadow: 2px 2px 0 var(--magenta);
  transform: none;
  text-align: left;
}

.brand-tag {
  text-align: center;
  font-size: 1rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 0.25rem;
}

/* ---------- layout ---------- */

.player #app {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.view {
  width: 100%;
  max-width: 26rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-align: center;
}

/* ---------- join form ---------- */

.join-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.field {
  font-size: 1.15rem;
  padding: 1rem 1.1rem;
  border: 3px solid rgba(255, 255, 255, 0.35);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  width: 100%;
  outline: none;
  min-height: 3.5rem;
}

.field::placeholder { color: rgba(255, 255, 255, 0.6); }
.field:focus { border-color: var(--yellow); background: rgba(255, 255, 255, 0.18); }

.pin-field {
  text-align: center;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: 0.6em;
  text-indent: 0.6em;
}

.join-row { display: flex; gap: 0.75rem; }
.join-row .btn { flex: 1; }

.form-error {
  margin: 0;
  color: #fecaca;
  font-weight: 600;
  min-height: 1.4em;
}

/* ---------- buttons ---------- */

.btn {
  font-size: 1.05rem;
  font-weight: 800;
  border: none;
  border-radius: 1rem;
  padding: 0.95rem 1.4rem;
  min-height: 3.5rem;
  cursor: pointer;
  color: var(--ink);
  background: var(--yellow);
  box-shadow: 0 4px 0 rgba(31, 18, 53, 0.45);
  transition: transform 0.06s ease, box-shadow 0.06s ease, filter 0.12s ease;
}

.btn:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 rgba(31, 18, 53, 0.45);
}

.btn:disabled { filter: grayscale(0.8); opacity: 0.55; cursor: default; }

.btn.join-btn { background: linear-gradient(180deg, var(--pink), var(--magenta)); color: var(--white); flex: 2; }
.btn.surprise { background: var(--orange); }
.btn.ghost { background: rgba(255, 255, 255, 0.14); color: var(--white); box-shadow: none; }
.btn.danger { background: #ef4444; color: var(--white); }
.btn.primary { background: linear-gradient(180deg, var(--cyan), #0891b2); color: var(--white); }
.btn.start-activity { width: 100%; background: linear-gradient(180deg, var(--green), #16a34a); color: var(--white); }

/* ---------- idle / status screens ---------- */

.idle-nick {
  font-size: 2rem;
  font-weight: 800;
  background: var(--yellow);
  color: var(--ink);
  padding: 0.5rem 1.4rem;
  border-radius: 999px;
  box-shadow: 0 5px 0 rgba(31, 18, 53, 0.45);
  max-width: 100%;
  overflow-wrap: anywhere;
}

.idle-waiting {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  animation: pulse 2.2s ease-in-out infinite;
}

.idle-result {
  font-size: 1.05rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.14);
  border: 2px solid rgba(255, 255, 255, 0.3);
  padding: 0.7rem 1.2rem;
  border-radius: 1rem;
}

.status-text { font-size: 1.2rem; margin: 0.5rem 0; }

.activity-info {
  font-size: 1.6rem;
  font-weight: 800;
  background: rgba(255, 255, 255, 0.14);
  border: 3px solid rgba(255, 255, 255, 0.35);
  border-radius: 1.5rem;
  padding: 2rem 1.5rem;
  width: 100%;
  animation: pulse 1.6s ease-in-out infinite;
}

/* Activity modules render inside this mount; it must take the full
   column width even though the surrounding view centers its children. */
#activity-mount { width: 100%; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.65; }
}

/* ---------- loading / reconnect / toast ---------- */

.loading {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(160deg, var(--violet) 0%, var(--purple) 45%, var(--purple-deep) 100%);
  z-index: 50;
}

.loading-brand {
  font-size: 3rem;
  font-weight: 900;
  color: var(--yellow);
  text-shadow: 3px 3px 0 var(--magenta);
  animation: bounce 0.9s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-14px) scale(1.06); }
}

.reconnect-banner {
  position: fixed;
  top: 0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--yellow);
  font-weight: 700;
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  z-index: 60;
}

.toast {
  position: fixed;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  max-width: min(90vw, 30rem);
  background: var(--ink);
  color: var(--white);
  font-weight: 600;
  padding: 0.8rem 1.3rem;
  border-radius: 999px;
  z-index: 70;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

/* ---------- host page ---------- */

.host-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.25rem;
  border-bottom: 2px solid rgba(255, 255, 255, 0.15);
}

.host-tools { display: flex; gap: 0.6rem; }
.host-tools .btn { font-size: 0.9rem; padding: 0.55rem 1rem; min-height: 2.6rem; }

.host-auth-error {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
  background: rgba(239, 68, 68, 0.18);
  border: 2px solid rgba(239, 68, 68, 0.55);
  border-radius: 1.25rem;
  padding: 1.4rem;
  text-align: center;
  font-weight: 700;
}

.host-signin {
  display: flex;
  justify-content: center;
  padding: 1rem 0;
}

.host-signin-box {
  width: 100%;
  max-width: 24rem;
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid rgba(255, 255, 255, 0.18);
  border-radius: 1.5rem;
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.host-signin-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.host-main {
  max-width: 56rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.lobby-card {
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid rgba(255, 255, 255, 0.18);
  border-radius: 1.5rem;
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
}

.pin-label {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.4em;
  color: rgba(255, 255, 255, 0.7);
}

.pin {
  font-size: clamp(4rem, 14vw, 7rem);
  font-weight: 900;
  letter-spacing: 0.18em;
  line-height: 1;
  color: var(--yellow);
  text-shadow: 4px 4px 0 var(--magenta);
  font-variant-numeric: tabular-nums;
}

.lobby-row {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.qr-box {
  background: var(--white);
  border-radius: 1rem;
  padding: 0.6rem;
  line-height: 0;
}

.qr-box svg { display: block; }

.lobby-stats { text-align: center; }

.count-label {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.3em;
  color: rgba(255, 255, 255, 0.7);
}

.count {
  font-size: clamp(3.5rem, 10vw, 5.5rem);
  font-weight: 900;
  line-height: 1.05;
  color: var(--green);
  font-variant-numeric: tabular-nums;
}

.join-url {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 16rem;
  overflow-wrap: anywhere;
}

/* names: newest at the bottom, oldest fade away at the top */

.names-box {
  max-height: 34vh;
  overflow: hidden;
}

.names {
  max-height: 34vh;
  overflow-y: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-content: flex-start;
  padding-bottom: 0.4rem;
  scrollbar-width: none;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, black 3.5rem);
  mask-image: linear-gradient(to bottom, transparent 0, black 3.5rem);
}

.names::-webkit-scrollbar { display: none; }

.name-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.55rem 0.45rem 0.9rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ink);
  animation: chip-in 0.25s ease;
}

.name-chip:nth-child(5n + 1) { background: var(--yellow); }
.name-chip:nth-child(5n + 2) { background: var(--pink); }
.name-chip:nth-child(5n + 3) { background: var(--cyan); }
.name-chip:nth-child(5n + 4) { background: var(--orange); }
.name-chip:nth-child(5n) { background: var(--green); }

.name-chip-label { max-width: 11rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.kick-btn {
  border: none;
  background: rgba(31, 18, 53, 0.18);
  color: var(--ink);
  width: 1.7rem;
  height: 1.7rem;
  min-width: 1.7rem;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 900;
  line-height: 1;
  cursor: pointer;
}

.kick-btn:hover { background: rgba(31, 18, 53, 0.32); }

@keyframes chip-in {
  from { transform: scale(0.7); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

/* activity panel (placeholder until Phase 2) */

.activity-panel {
  background: rgba(255, 255, 255, 0.08);
  border: 2px solid rgba(255, 255, 255, 0.18);
  border-radius: 1.5rem;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 1.15rem;
}

.activity-type { font-weight: 900; color: var(--yellow); }

.activity-controls { display: flex; gap: 0.75rem; margin-top: 0.4rem; }
.activity-controls .btn { flex: 1; }

/* ---------- small screens ---------- */

@media (max-width: 480px) {
  .host-tools .btn { padding: 0.5rem 0.75rem; }
  .lobby-row { gap: 1rem; }
  .qr-box { padding: 0.45rem; }
}