/* ==========================================================================================
   screens/room.css — room/waiting screen: invite key, 4 seat cards, bottom action bar.
   ========================================================================================== */

.room-screen .topbar { height: 1.36rem; }
.room-ping { display: flex; flex-direction: column; align-items: flex-start; gap: .04rem; }

/* ---- invite key ---------------------------------------------------------------------------------------- */
.invite {
  --bk-c: var(--mint-500);
  display: grid;
  grid-template-columns: auto auto;
  column-gap: .2rem;
  row-gap: .06rem;
  align-items: center;
  padding: .1rem .16rem .12rem;
  background: rgba(0, 0, 0, .38);
  border: 1px solid var(--line);
}
.invite__label { grid-column: 1 / -1; display: flex; align-items: center; gap: .07rem; font-size: .14rem; color: var(--text-lo); }
.invite__label .icon { width: .16rem; height: .16rem; color: var(--mint-500); }
.invite__code { display: flex; gap: .06rem; }
.invite__code span {
  display: grid;
  place-items: center;
  width: .46rem;
  height: .58rem;
  background: linear-gradient(180deg, rgba(78, 216, 175, .1), rgba(78, 216, 175, .02));
  border-bottom: 2px solid var(--mint-600);
  color: var(--mint-400);
  font-size: .44rem;
  font-weight: 700;
  line-height: 1;
  text-shadow: 0 0 .16rem rgba(23, 249, 183, .45);
}
.invite__btns { display: flex; flex-direction: column; gap: .06rem; }
.solo-note { display: flex; flex-direction: column; align-items: flex-end; gap: .03rem; font-size: .16rem; color: var(--text-lo); }

/* ---- seats ------------------------------------------------------------------------------------------------ */
.seats {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 3.8rem));
  grid-template-rows: minmax(0, 6rem);
  justify-content: center;
  align-content: center;
  gap: .3rem;
  padding: .3rem .6rem .24rem;
}
.seats--solo { grid-template-columns: 3.8rem minmax(0, 6.4rem); }
/* Remake: a co-op room may be widened past the official 4 seats (房间人数 1–10). Above 4 the host's stepper
   switches the grid to --seat-cols columns of two rows (set inline from the seat count), each column an equal
   share but never wider than the natural 3.8rem card. Nothing hardcodes 4 here any more. */
.seats--wide {
  grid-template-columns: repeat(var(--seat-cols, 4), minmax(0, 1fr));
  grid-template-rows: none;
  grid-auto-rows: minmax(0, 1fr);
  gap: .22rem;
  width: 100%;
  max-width: calc(var(--seat-cols, 4) * 3.8rem + (var(--seat-cols, 4) - 1) * .22rem);
  margin-inline: auto;
}

.seat {
  --bk-c: var(--line-3);
  --bk-l: .18rem;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .07rem;
  height: 100%;
  min-height: 0;
  padding: .16rem .2rem .18rem;
  background:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, .014) 0 1px, transparent 1px 3px),
    linear-gradient(180deg, rgba(29, 35, 32, .95), rgba(11, 14, 13, .97));
  border: 1px solid var(--line);
  box-shadow: 0 .14rem .34rem rgba(0, 0, 0, .4);
  transition: border-color var(--t-med), box-shadow var(--t-med);
  animation: seat-in var(--t-slow) var(--ease-out) backwards;
  animation-delay: calc(var(--seat-i, 0) * 60ms);
}
@keyframes seat-in { from { opacity: 0; transform: translateY(.18rem); } }
.seat::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 3px;
  background: var(--line-2);
  transition: background var(--t-med), box-shadow var(--t-med);
}
.seat__head { align-self: stretch; display: flex; align-items: center; gap: .1rem; }
.seat__no { font-size: .22rem; font-weight: 700; color: var(--text-md); padding-left: .08rem; border-left: 3px solid var(--line-3); line-height: 1.1; }
.seat__host {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: .04rem;
  padding: .02rem .09rem;
  background: var(--gold);
  color: #1d1400;
  font-size: .13rem;
  font-weight: 700;
}
.seat__host .icon { width: .15rem; height: .15rem; }
.seat__art {
  position: relative;
  flex: 1;
  min-height: 0;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .08rem;
  margin: .06rem 0 .04rem;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 42%, rgba(78, 216, 175, .08), transparent 62%),
    linear-gradient(rgba(78, 216, 175, .04) 1px, transparent 1px) 0 0 / .3rem .3rem,
    linear-gradient(90deg, rgba(78, 216, 175, .04) 1px, transparent 1px) 0 0 / .3rem .3rem,
    #0b0e0d;
  border: 1px solid rgba(255, 255, 255, .04);
}
.seat__stripes {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: .14rem;
  background: repeating-linear-gradient(-45deg, rgba(255, 255, 255, .06) 0 .05rem, transparent .05rem .1rem);
}
.seat__art .avatar { --av: 2.1rem; }
.seat__bot-label {
  display: flex;
  align-items: center;
  gap: .05rem;
  padding: .02rem .1rem;
  background: rgba(159, 212, 255, .1);
  border: 1px solid rgba(159, 212, 255, .35);
  color: var(--ice);
  font-size: .14rem;
  font-weight: 700;
}
.seat__bot-label .icon { width: .16rem; height: .16rem; }
.seat__who { display: flex; align-items: center; gap: .08rem; max-width: 100%; }
.seat__name { font-size: .26rem; font-weight: 700; max-width: 3rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.seat__you { flex: none; padding: .01rem .07rem; background: var(--mint-500); color: var(--text-on-mint); font-size: .13rem; font-weight: 700; }
.seat__foot {
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .1rem;
  min-height: .46rem;
  margin-top: .06rem;
  padding-top: .1rem;
  border-top: 1px solid var(--line);
}
.seat__foot .tt-anchor { position: absolute; right: .14rem; bottom: .14rem; }
.seat__state { display: flex; align-items: center; gap: .06rem; font-size: .18rem; font-weight: 700; letter-spacing: .06em; }
.seat__state .icon { width: .22rem; height: .22rem; }
.seat__state--ready { color: var(--mint-400); }
.seat__state--waiting { color: var(--text-lo); }
.seat__state--offline { color: var(--orange-hi); }
.seat__state--host { color: var(--gold-2); }

.seat.is-ready { --bk-c: var(--mint-500); border-color: var(--mint-800); }
.seat.is-ready::before { background: var(--mint-500); box-shadow: 0 0 .12rem rgba(23, 249, 183, .6); }
.seat.is-host .seat__no { border-left-color: var(--gold); }
.seat.is-me { box-shadow: 0 0 0 1px rgba(78, 216, 175, .28), 0 0 .44rem rgba(23, 249, 183, .12), 0 .14rem .34rem rgba(0, 0, 0, .4); }
.seat.is-me .seat__no { color: var(--mint-400); }
.seat.is-offline::before { background: var(--orange); }
.seat.is-bot .seat__art { background:
    radial-gradient(circle at 50% 42%, rgba(159, 212, 255, .08), transparent 62%),
    linear-gradient(rgba(159, 212, 255, .04) 1px, transparent 1px) 0 0 / .3rem .3rem,
    linear-gradient(90deg, rgba(159, 212, 255, .04) 1px, transparent 1px) 0 0 / .3rem .3rem,
    #0b0e10; }

.seat--empty { background: rgba(10, 13, 12, .5); border-style: dashed; border-color: var(--line-2); box-shadow: none; }
.seat--empty .seat__art { background: transparent; border: 0; }
.seat__radar {
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 50%;
  background:
    repeating-radial-gradient(circle, transparent 0 .2rem, rgba(78, 216, 175, .14) .2rem .21rem),
    /* same geometry as .title-bg__sweep: bright edge at 100% (== 0deg) so it leads the clockwise
       rotation and the glow trails behind; see the comment in screens/title.css. */
    conic-gradient(from 0deg, transparent 0 75%, rgba(23, 249, 183, .2) 100%);
  -webkit-mask-image: radial-gradient(circle, #000 60%, transparent 71%);
  mask-image: radial-gradient(circle, #000 60%, transparent 71%);
  animation: radar-sweep 4s linear infinite;
}
@keyframes radar-sweep { to { transform: rotate(360deg); } }
.seat__wait { font-size: .2rem; color: var(--text-lo); letter-spacing: .08em; }
.seat--empty .seat__foot { border-top-style: dashed; }

.solo-brief {
  --bk-c: var(--mint-500);
  align-self: stretch;
  display: flex;
  flex-direction: column;
  gap: .14rem;
  height: 100%;
  padding: .34rem .4rem;
  background:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, .014) 0 1px, transparent 1px 3px),
    linear-gradient(180deg, rgba(24, 29, 27, .92), rgba(11, 14, 13, .95));
  border: 1px solid var(--line);
  animation: seat-in var(--t-slow) 80ms var(--ease-out) backwards;
}
.solo-brief h2 { font-size: .36rem; font-weight: 900; letter-spacing: .06em; }
.solo-brief p { font-size: .18rem; color: var(--text-md); }
.solo-brief ul { margin: .06rem 0 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: .08rem; font-size: .16rem; color: var(--text-lo); }
.solo-brief li::before { content: ''; display: inline-block; width: .06rem; height: .06rem; margin: 0 .12rem .02rem 0; background: var(--mint-600); transform: rotate(45deg); vertical-align: middle; }
.solo-brief b { color: var(--text-hi); }

/* ---- spectator seats (观战席, community report #26) -------------------------------------------------------------- */
.specbar {
  flex: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .14rem;
  padding: 0 .6rem .16rem;
  font-size: .15rem;
  color: var(--text-lo);
}
.specbar__label { display: flex; align-items: baseline; gap: .06rem; font-weight: 700; color: var(--text-md); }
.specbar__label .icon { width: .18rem; height: .18rem; align-self: center; color: var(--mint-500); }
.specbar__label b { color: var(--mint-400); }
.specbar__who {
  display: inline-flex;
  align-items: center;
  gap: .06rem;
  min-height: .36rem;
  padding: 0 .14rem;
  border: 1px solid var(--line-2);
  background: rgba(0, 0, 0, .32);
  color: var(--text-hi);
}
.specbar__who.is-me { border-color: var(--mint-600); }
.specbar__who.is-offline { color: var(--text-dim); }
.specbar__who > .icon { width: .16rem; height: .16rem; }

/* ---- bottom bar ----------------------------------------------------------------------------------------- */
.room-bar {
  position: relative;
  flex: none;
  display: grid;
  /* 4 个子元素：难度 / 人数+自定义规则 / 就绪状态 / 干员调配+开始。
     规则的 9 个开关（其中 4 个还带数字输入）横排远超一行的宽度，所以让它单独占
     第二行、整行铺开并自行换行；其余三个走第一行。
     原先是 3 列 + 固定 1.5rem 高，第 4 个子元素被迫挤进不存在的第二行 → 溢出重叠。 */
  grid-template-columns: auto minmax(0, 1fr) auto;
  grid-template-areas:
    'left   center right'
    'rules  rules  rules';
  align-items: center;
  gap: .12rem .3rem;
  min-height: 1.5rem;
  padding: .16rem .6rem;
  background: linear-gradient(0deg, rgba(7, 9, 8, .96), rgba(10, 13, 12, .7));
  border-top: 1px solid var(--line);
}
.room-bar::before {
  content: '';
  position: absolute;
  left: .6rem;
  right: .6rem;
  top: -1px;
  height: 1px;
  background: linear-gradient(90deg, var(--mint-700), transparent 30%, transparent 70%, var(--mint-700));
}
.room-bar__left { grid-area: left; display: flex; align-items: center; gap: .22rem; min-width: 0; }
.room-bar__label { display: flex; flex-direction: column; font-size: .17rem; font-weight: 700; color: var(--text-md); line-height: 1.35; }
.room-bar__center { grid-area: center; display: flex; flex-direction: column; align-items: center; gap: .06rem; min-width: 0; }
.room-bar__right { grid-area: right; justify-self: end; display: flex; align-items: center; gap: .16rem; }
.room-bar__status { font-size: .15rem; }
.room-bar__status .icon { width: .18rem; height: .18rem; margin-right: .05rem; vertical-align: -.03rem; }

.dpick { display: flex; border: 1px solid var(--line-2); background: rgba(0, 0, 0, .3); }
.dpick__opt {
  --d-color: var(--amber);
  position: relative;
  display: flex;
  align-items: center;
  gap: .06rem;
  height: .54rem;
  padding: 0 .2rem;
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--text-lo);
  font-size: .18rem;
  font-weight: 700;
  letter-spacing: .08em;
  transition: color var(--t-fast), background-color var(--t-med), box-shadow var(--t-med);
}
.dpick__opt:last-child { border-right: 0; }
.dpick__opt .icon { width: .2rem; height: .2rem; color: var(--d-color); opacity: .55; transition: opacity var(--t-fast); }
.dpick__opt:hover:not(:disabled) { color: var(--text-hi); background: rgba(255, 255, 255, .03); }
.dpick__opt:hover:not(:disabled) .icon { opacity: 1; }
.dpick__opt:disabled { cursor: default; }
.dpick__opt.is-active {
  color: var(--d-color);
  background: transparent; background: color-mix(in srgb, var(--d-color) 17%, transparent);
  box-shadow: inset 0 -3px 0 var(--d-color);
}
.dpick__opt.is-active .icon { opacity: 1; filter: drop-shadow(0 0 5px var(--d-color)); }
.dpick--ro { border: 0; background: none; gap: .18rem; align-items: center; font-size: .14rem; }

.ready-count[hidden] { display: none; }
.ready-count { display: flex; align-items: baseline; gap: .06rem; font-size: .16rem; }
.ready-count b { font-size: .36rem; line-height: 1; color: var(--mint-400); text-shadow: 0 0 .14rem rgba(23, 249, 183, .45); }
.ready-count .t-dim { font-size: .22rem; }
.ready-count__icons { display: flex; gap: .02rem; margin-left: .12rem; align-self: center; }
.ready-count__icons .icon { width: .28rem; height: .28rem; color: var(--line-3); transition: color var(--t-med); }
.ready-count__icons .icon.is-on { color: var(--mint-400); filter: drop-shadow(0 0 4px var(--mint-glow)); }

.room-bar .btn--xl { min-width: 3.2rem; letter-spacing: .2em; }

/* ---- non-official rules panel (rulesbar) + seat capacity stepper ----------------------------------------- */
/* 第二行：只放自定义规则面板（9 开关 + 4 数字输入），整行铺开、内部自行换行，容器永远不溢出。
   「房间人数」步进器已移到第一行（.room-bar__left），与难度并排 —— 它是房间属性，不是规则开关。 */
.room-bar__rules {
  grid-area: rules;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .08rem .22rem;
  min-width: 0;
}
.room-bar__rules .rulesbar { flex: 1 1 auto; min-width: 0; }

.rulesbar {
  flex: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: .08rem .1rem;
  padding: 0;
  font-size: .15rem;
  color: var(--text-lo);
}
.rulesbar__label { display: flex; align-items: baseline; gap: .06rem; font-weight: 700; color: var(--text-md); }
.rulesbar__micro { font-size: .12rem; color: var(--text-dim); letter-spacing: .08em; }
.rulesbar__list { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: .06rem; }
.rulesbar__state { font-size: .14rem; color: var(--text-dim); }

.rules-sw {
  display: inline-flex;
  align-items: center;
  gap: .06rem;
  min-height: .36rem;
  padding: 0 .08rem 0 .1rem;
  border: 1px solid var(--line-2);
  background: rgba(0, 0, 0, .32);
  color: var(--text-lo);
  font-size: .15rem;
  transition: color var(--t-fast), border-color var(--t-fast), background-color var(--t-fast);
}
.rules-sw__toggle {
  display: inline-flex;
  align-items: center;
  gap: .06rem;
  padding: 0;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  cursor: pointer;
}
.rules-sw__name { font-size: .14rem; }
.rules-sw__knob { position: relative; flex: none; width: .4rem; height: .2rem; background: var(--bg-3); }
.rules-sw__knob::after {
  content: '';
  position: absolute;
  left: .02rem;
  top: .02rem;
  width: .16rem;
  height: .16rem;
  background: var(--text-lo);
  transition: transform var(--t-fast), background var(--t-fast);
}
.rules-sw__field {
  display: inline-flex;
  align-items: center;
  gap: .04rem;
  padding-left: .06rem;
  border-left: 1px solid var(--line-2);
}
.rules-sw__num {
  width: .72rem;
  padding: .02rem .05rem;
  border: 1px solid var(--line-2);
  background: rgba(0, 0, 0, .5);
  color: var(--text-hi);
  font-family: inherit;
  font-size: .15rem;
  text-align: right;
  appearance: textfield;
}
.rules-sw__num::-webkit-outer-spin-button,
.rules-sw__num::-webkit-inner-spin-button { margin: 0; -webkit-appearance: none; }
.rules-sw__num:focus { border-color: var(--mint-600); outline: none; }
.rules-sw__num:disabled { color: var(--text-lo); cursor: default; }
.rules-sw__unit { font-size: .14rem; color: var(--text-dim); }
.rules-sw:not(.is-on) .rules-sw__num { color: var(--text-md); }
.rules-sw:not(.is-on) .rules-sw__field { opacity: .7; }

.rules-sw.is-on { color: var(--mint-400); border-color: var(--mint-700); }
.rules-sw.is-on .rules-sw__knob { background: var(--mint-800); }
.rules-sw.is-on .rules-sw__knob::after { transform: translateX(.2rem); background: var(--mint-400); }
.rules-sw.is-on .rules-sw__unit { color: var(--mint-700); }

.rules-sw:hover { border-color: var(--mint-600); }
.rules-sw:hover .rules-sw__toggle { color: var(--text-hi); }
.rules-sw__toggle:disabled { cursor: default; }
.rulesbar--ro .rules-sw { opacity: .85; }
.rulesbar--ro .rules-sw:hover { border-color: var(--line-2); }
.rulesbar--ro .rules-sw.is-on { opacity: 1; }

/* ---- room capacity stepper (room.setSeats) ---- */
.seatcap { display: flex; align-items: center; gap: .06rem; border: 1px solid var(--line-2); background: rgba(0, 0, 0, .3); padding: .04rem .1rem; }
.seatcap__label { font-size: .14rem; color: var(--text-md); }
.seatcap__btn {
  display: flex; align-items: center; justify-content: center; width: .26rem; height: .26rem;
  border: 0; background: none; color: var(--text-md); cursor: pointer; transition: color var(--t-fast), background var(--t-fast);
}
.seatcap__btn:hover:not(:disabled) { color: var(--text-hi); background: rgba(255, 255, 255, .06); }
.seatcap__btn:disabled { opacity: .3; cursor: default; }
.seatcap__val { font-size: .28rem; line-height: 1; min-width: .34rem; text-align: center; color: var(--text-hi); }