:root {
  --bg: #f4e2d4;
  --pk: #e8869f;
  --pk2: #cf6683;
  --mint: #9fcfb4;
  --lem: #f0cf8e;
  --lav: #bba9d8;
  --ink: #4d3140;
  --mu: #957a82;
  --line: #e6c3b0;
  --card: #fff6ec;
  --sh: 0 6px 0 #e0b9a6
}

* {
  box-sizing: border-box
}

body {
  margin: 0;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  color: var(--ink);
  font: 700 15px/1.45 "Nunito", "Segoe UI", system-ui, sans-serif;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
  background: radial-gradient(circle at 12% 8%, #f2cdc0 0, transparent 42%), radial-gradient(circle at 92% 95%, #d5e4d0 0, transparent 42%), var(--bg);
  align-items: center;
  justify-content: center;
}

.brand,
h1,
.fr {
  font-family: "Fredoka", "Nunito", system-ui, sans-serif
}

.brand {
  font-size: 24px;
  font-weight: 700;
  color: var(--pk2);
  text-shadow: 2px 2px 0 #fff
}

button,
input {
  font: inherit;
  color: inherit
}

button {
  cursor: pointer;
  background: var(--card);
  border: 2.5px solid var(--line);
  border-radius: 16px;
  padding: 8px 14px;
  box-shadow: 0 3px 0 var(--line);
  transition: transform .1s, box-shadow .1s;
  white-space: nowrap;
  flex-shrink: 0
}

button:hover {
  transform: translateY(-2px)
}

button:active {
  transform: translateY(3px);
  box-shadow: none
}

button.pri {
  background: var(--pk);
  border-color: var(--pk2);
  color: #fff;
  box-shadow: 0 4px 0 var(--pk2)
}

button.mint {
  background: var(--mint);
  border-color: #7fb89b;
  box-shadow: 0 4px 0 #7fb89b
}

button:disabled {
  opacity: .4;
  cursor: not-allowed;
  transform: none
}

input {
  width: 100%;
  background: var(--card);
  border: 2.5px solid var(--line);
  border-radius: 16px;
  padding: 10px 14px;
  outline: 0;
  transition: border-color .15s
}

input:focus {
  border-color: var(--pk)
}

.hidden {
  display: none !important
}

.mu {
  color: var(--mu)
}

.sm {
  font-size: 12.5px
}

.tag {
  font-size: 12px;
  padding: 3px 11px;
  border: 2px solid var(--line);
  border-radius: 99px;
  background: #fff
}

.tag.demo {
  border-color: var(--lem);
  background: #fff9e0
}

.tag.mint {
  border-color: #7fb89b;
  background: #e8f5ee;
  color: #2e6d4e;
}

#join {
  margin: auto;
  width: min(400px, 92vw);
  max-width: calc(100vw - 20px);
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px;
  max-height: 94dvh;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--card);
  border: 3px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--sh);
  animation: pop .5s cubic-bezier(.3, 1.5, .5, 1);
  box-sizing: border-box;
}

#join::-webkit-scrollbar {
  width: 5px;
}

#join::-webkit-scrollbar-track {
  background: transparent;
}

#join::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 99px;
}

@keyframes pop {
  from {
    opacity: 0;
    transform: scale(.85) translateY(20px)
  }
}

#join h1 {
  margin: 0;
  font-size: clamp(26px, 8vw, 42px);
  text-align: center;
  color: var(--pk2);
  text-shadow: 2.5px 2.5px 0 var(--lem);
  line-height: 1.15;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

#join p {
  margin: 0;
  text-align: center;
  font-size: 13px;
  line-height: 1.35;
  word-break: break-word;
}

.seg {
  display: flex;
  background: var(--bg);
  border-radius: 16px;
  padding: 3.5px;
  gap: 4px;
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
}

.seg button {
  flex: 1;
  border: 0;
  box-shadow: none;
  background: none;
  border-radius: 12px;
  padding: 7px 12px;
  font-size: 14px;
}

.seg .on {
  background: var(--pk);
  color: #fff
}

.recent-rooms-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 2px 0;
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
}

.recent-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 800;
  color: var(--mu);
  margin: 0;
  padding: 0 2px;
}

.recent-title span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.recent-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
}

.room-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  background: #fff;
  border: 2px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 3px 0 var(--line);
  cursor: pointer;
  transition: all .18s cubic-bezier(.4, 0, .2, 1);
  text-align: left;
  user-select: none;
  min-width: 0;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.room-card:hover {
  transform: translateY(-2px);
  border-color: var(--pk);
  box-shadow: 0 4px 0 var(--pk2);
  background: #fffafa;
}

.room-card:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 var(--pk2);
}

.room-card.selected {
  border-color: var(--pk2);
  background: #fff2f5;
  box-shadow: 0 3px 0 var(--pk2);
}

.room-card-left {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex: 1 1 0%;
  overflow: hidden;
}

.room-card-icon {
  width: 30px;
  height: 30px;
  border-radius: 10px;
  background: var(--card);
  border: 1.5px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}

.room-card-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 1 1 0%;
  overflow: hidden;
}

.room-card-name {
  font-family: "Fredoka", "Nunito", sans-serif;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  display: block;
}

.room-card-code {
  font-size: 11px;
  font-weight: 800;
  color: var(--mu);
  letter-spacing: .5px;
  white-space: nowrap;
}

.room-card-right {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.room-badge {
  font-size: 10.5px;
  font-weight: 800;
  padding: 2.5px 7px;
  border-radius: 99px;
  white-space: nowrap;
  flex-shrink: 0;
}

.room-badge.public {
  background: #eaf7ef;
  color: #2b7a4b;
  border: 1.5px solid #a3dcba;
}

.room-badge.private {
  background: #f4effc;
  color: #6b46c1;
  border: 1.5px solid #d1bbf4;
}

.room-card-arrow {
  font-size: 12px;
  color: var(--mu);
  transition: transform .18s, color .18s;
  flex-shrink: 0;
}

.room-card:hover .room-card-arrow {
  color: var(--pk2);
  transform: translateX(3px);
}

.recent-loading,
.recent-empty {
  padding: 10px;
  text-align: center;
  background: rgba(255, 255, 255, 0.6);
  border: 1.5px dashed var(--line);
  border-radius: 14px;
  color: var(--mu);
  font-size: 12.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.spin-dot {
  display: inline-block;
  animation: spin 2s linear infinite;
}

@keyframes spin {
  100% {
    transform: rotate(360deg);
  }
}

#app {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  width: 100%;
}

header, header.app-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  background: var(--card);
  border-bottom: 2px solid var(--line);
}

.hdr-brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.hdr-room-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
  flex-wrap: wrap;
}

.rname-text {
  font-weight: 700;
  font-size: 14px;
  color: var(--ink);
}

.cnt-text {
  font-size: 12px;
  color: var(--mu);
}

.hdr-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex-shrink: 0;
}

header .sp {
  flex: 1
}

#strip {
  display: flex;
  gap: 8px;
  padding: 2px 16px 8px;
  overflow-x: auto;
  min-height: 40px;
  align-items: center;
  scrollbar-width: none
}

.who {
  display: flex;
  gap: 6px;
  align-items: center;
  white-space: nowrap;
  font-size: 13px;
  background: var(--card);
  padding: 3px 12px 3px 4px;
  border-radius: 99px;
  border: 2px solid var(--line)
}

.av {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--lem);
  display: grid;
  place-items: center;
  font-size: 14px
}

.body {
  flex: 1;
  display: flex;
  min-height: 0;
  gap: 12px;
  padding: 0 12px 6px
}

#stageWrap {
  flex: 1;
  position: relative;
  min-width: 0;
  overflow: hidden;
  border-radius: 28px;
  border: 3px solid var(--line);
  box-shadow: var(--sh);
  background: linear-gradient(180deg, #f3cfc2, #f6e1c8 60%, #d3e3cf)
}

#cv {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%
}

#nowline {
  position: absolute;
  left: 14px;
  top: 14px;
  max-width: calc(100% - 28px);
  background: #fff6ecd9;
  padding: 8px 16px;
  border-radius: 20px;
  border: 2px solid var(--line);
  z-index: 5
}

#nowline b {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--pk2);
  font-size: 16px
}

#pip {
  position: fixed;
  left: -400px;
  top: 0;
  width: 240px;
  height: 240px;
  opacity: .01;
  pointer-events: none
}

#pip iframe,
#pip div,
#pip audio {
  width: 100%;
  height: 100%;
  border: 0
}

#gate {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: #f8e8dcee;
  text-align: center;
  padding: 20px;
  z-index: 20;
  transition: opacity 0.3s;
}

/* Thêm class ẩn màn hình chờ để tránh lỗi đè lớp */
#gate.hidden {
  display: none !important;
  opacity: 0;
  pointer-events: none;
}

#gate .big {
  font-size: 60px;
  animation: bob 1s ease-in-out infinite
}

@keyframes bob {
  50% {
    transform: translateY(-10px)
  }
}

#gate button {
  font-size: 18px;
  padding: 12px 28px;
  margin-top: 8px
}

#err {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 12px;
  color: #d44;
  font-size: 13px;
  background: var(--card);
  padding: 4px 14px;
  border-radius: 99px;
  border: 2px solid #ffb3b3;
  z-index: 6
}

#err:empty {
  display: none
}

.fl {
  position: absolute;
  font-size: 34px;
  pointer-events: none;
  animation: up 2.2s ease-out forwards;
  z-index: 7
}

@keyframes up {
  to {
    transform: translateY(-220px) rotate(14deg) scale(1.25);
    opacity: 0
  }
}

aside {
  width: 320px;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 3px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--sh);
  min-height: 0;
  overflow: hidden
}

.tabs {
  display: flex;
  padding: 8px;
  gap: 6px
}

.tabs button {
  flex: 1;
  border: 0;
  box-shadow: none;
  background: none;
  color: var(--mu)
}

.tabs .on {
  background: #f6d3cb;
  color: var(--pk2)
}

.pane {
  flex: 1;
  overflow: auto;
  padding: 4px 12px;
  min-height: 0
}

.msg {
  margin-bottom: 8px;
  padding: 6px 12px;
  background: var(--bg);
  border-radius: 6px 16px 16px 16px
}

.msg small {
  color: var(--mu)
}

.msg p {
  margin: 0;
  overflow-wrap: anywhere
}

.msg.s {
  background: none;
  color: var(--mu);
  font-size: 12.5px;
  padding: 2px 4px
}

.qi {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 8px 10px;
  margin-bottom: 6px;
  border-radius: 16px;
  background: var(--bg);
  border: 2px solid transparent
}

.qi.cur {
  background: #f6d3cb;
  border-color: var(--pk)
}

.qi .t {
  flex: 1;
  min-width: 0
}

.qi b {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis
}

.qi button {
  padding: 3px 9px
}

.foot {
  padding: 10px;
  display: flex;
  gap: 8px
}

#dock {
  display: flex;
  gap: 10px;
  padding: 8px 14px 12px;
  align-items: center;
  flex-wrap: wrap
}

#addF {
  flex: 1;
  min-width: 300px;
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: nowrap
}

#addF input#url {
  flex: 1 1 200px;
  min-width: 100px
}

#addF input#customTitle {
  flex: 0 1 150px;
  min-width: 80px
}

#addF button {
  flex: 0 0 auto;
  white-space: nowrap
}

#bPlay {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  font-size: 22px;
  padding: 0
}

.rx {
  display: inline-flex;
  gap: 2px;
  padding: 3px 6px;
  background: var(--card);
  border-radius: 99px;
  border: 2px solid var(--line)
}

.rx button {
  border: 0;
  background: none;
  box-shadow: none;
  font-size: 22px;
  padding: 2px 6px
}

#hostCtl {
  flex-wrap: wrap
}

#xSide {
  display: none;
  flex: 0 0 44px;
  padding: 6px
}

#bd {
  position: fixed;
  inset: 0;
  background: #4d314066;
  z-index: 39
}

@media(max-width:800px) {
  .body {
    padding: 0 8px 2px;
    flex: 1 1 auto;
    height: 44dvh;
    min-height: 230px;
    max-height: 50dvh;
  }

  aside {
    position: fixed;
    right: 8px;
    top: 8px;
    bottom: 8px;
    width: min(320px, 86vw);
    z-index: 40;
    transform: translateX(120%);
    transition: transform .3s
  }

  aside.open {
    transform: none
  }

  #app {
    overflow-y: auto;
    overflow-x: hidden;
  }

  header, header.app-header {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
    row-gap: 8px;
    column-gap: 8px;
    padding: 8px 12px;
    align-items: center;
    background: var(--card);
    border-bottom: 2px solid var(--line);
  }

  .hdr-brand {
    grid-column: 1 / 2;
    grid-row: 1 / 2;
    display: flex;
    align-items: center;
    justify-content: flex-start;
  }

  .hdr-brand .brand {
    font-size: 20px;
    font-weight: 900;
    line-height: 1;
  }

  .hdr-actions {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
    margin-left: 0;
  }

  .hdr-actions button {
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 700;
    border-radius: 12px;
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .hdr-room-bar {
    grid-column: 1 / 3;
    grid-row: 2 / 3;
    display: flex;
    align-items: center;
    gap: 6px;
    width: 100%;
    padding: 6px 10px;
    background: rgba(255, 255, 255, 0.7);
    border: 1.5px solid var(--line);
    border-radius: 14px;
    overflow-x: auto;
    white-space: nowrap;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    box-sizing: border-box;
  }

  .hdr-room-bar::-webkit-scrollbar {
    display: none;
  }

  .hdr-room-bar .rname-text {
    font-size: 13px;
    font-weight: 800;
    color: var(--ink);
    max-width: 120px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .hdr-room-bar .tag {
    font-size: 11px;
    padding: 2.5px 8px;
    border-radius: 8px;
    white-space: nowrap;
    font-weight: 600;
  }

  .hdr-room-bar .cnt-text {
    font-size: 11.5px;
    white-space: nowrap;
    color: var(--mu);
    margin-left: auto;
    padding-left: 4px;
    font-weight: 600;
  }

  #tgl {
    display: block;
  }

  #xSide {
    display: block;
  }

  /* Bố cục Dock trong phòng to rõ như cũ, sắp xếp hợp lý */
  #dock {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px 10px 14px;
    align-items: center;
    justify-content: center;
    width: 100%;
    box-sizing: border-box;
  }

  #addF {
    width: 100%;
    flex: 1 1 100%;
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    min-width: 0;
  }

  #addF input#url {
    width: 100%;
    flex: 1 1 100%;
    padding: 9px 12px;
    font-size: 14px;
    border-radius: 14px;
  }

  #addF input#customTitle {
    width: 100%;
    flex: 1 1 100%;
    max-width: none;
    padding: 8px 12px;
    font-size: 13.5px;
    border-radius: 14px;
  }

  #addF button[type="submit"] {
    flex: 1 1 calc(55% - 4px);
    padding: 9px 14px;
    font-size: 14.5px;
    border-radius: 14px;
    text-align: center;
    box-shadow: 0 3px 0 var(--pk2);
  }

  #addF #bFile {
    flex: 1 1 calc(45% - 4px);
    padding: 9px 14px;
    font-size: 14.5px;
    border-radius: 14px;
    text-align: center;
    box-shadow: 0 3px 0 #7fb89b;
  }

  #hostCtl {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
  }

  #hostCtl button {
    padding: 8px 14px;
    font-size: 16px;
    border-radius: 14px;
  }

  #bPlay {
    width: 50px;
    height: 50px;
    font-size: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 0 var(--pk2);
  }

  #bSkip {
    padding: 8px 15px;
    font-size: 14px;
    border-radius: 14px;
  }

  .rx {
    display: inline-flex;
    gap: 5px;
    padding: 3px 9px;
    background: var(--card);
    border-radius: 99px;
    border: 2px solid var(--line);
    margin-top: 2px;
  }

  .rx button {
    font-size: 21px;
    padding: 2px 6px;
    border: 0;
    background: none;
    box-shadow: none;
  }
}

/* Fix riêng biệt cho màn hình Vào phòng / Tạo phòng (#join) trên Mobile để không bị cắt hoặc ép */
@media(max-width:480px) {
  body {
    overflow-x: hidden;
  }

  #join {
    width: min(350px, 94vw);
    max-width: calc(100vw - 16px);
    padding: 14px 12px;
    gap: 6px;
    border-radius: 20px;
    box-shadow: 0 4px 0 #e0b9a6;
  }

  #join h1 {
    font-size: 25px;
    text-shadow: 2px 2px 0 var(--lem);
    margin-bottom: 2px;
  }

  #join p {
    font-size: 11.5px;
    line-height: 1.3;
  }

  #modeJ {
    font-size: 10.5px;
    padding: 2px 8px;
  }

  #nick, #rin, #rpass {
    padding: 7px 10px;
    font-size: 13px;
    border-radius: 12px;
  }

  .seg {
    padding: 3px;
    border-radius: 13px;
    gap: 3px;
  }

  .seg button {
    padding: 5px 8px;
    font-size: 12.5px;
    border-radius: 10px;
  }

  .recent-rooms-wrap {
    gap: 5px;
    margin: 1px 0;
  }

  .recent-title {
    font-size: 11.5px;
    padding: 0 2px;
  }

  .recent-list {
    gap: 5px;
  }

  .room-card {
    padding: 6px 8px;
    border-radius: 12px;
  }

  .room-card-left {
    gap: 6px;
  }

  .room-card-icon {
    width: 26px;
    height: 26px;
    font-size: 12px;
    border-radius: 8px;
  }

  .room-card-name {
    font-size: 12px;
  }

  .room-card-code {
    font-size: 10px;
  }

  .room-badge {
    font-size: 9.5px;
    padding: 2px 5px;
  }

  .room-card-arrow {
    display: none;
  }

  #go {
    padding: 8px 12px;
    font-size: 14.5px;
    border-radius: 12px;
  }

  #pubL {
    font-size: 11px;
    margin: 0;
  }

  #jerr {
    font-size: 11.5px;
    min-height: 14px;
    line-height: 1.2;
  }
}

@media(max-height:700px) {
  #join {
    gap: 5px;
    padding: 10px 12px;
  }

  #join h1 {
    font-size: 23px;
  }

  .room-card {
    padding: 4px 7px;
  }

  #nick, #rin, #rpass {
    padding: 6px 9px;
  }

  #go {
    padding: 7px;
  }
}

@media(min-width:801px) {
  #tgl {
    display: none
  }

  #bd {
    display: none !important
  }
}

@media(prefers-reduced-motion:reduce) {
  * {
    animation: none !important;
    transition: none !important
  }
}