/* ====================================================================
   Damas multijogador — folha de estilo
   (variaveis de base, botões e inputs partilhados vêm de ../base.css)
   ==================================================================== */

:root {
  --sq-light: #ded0ab;
  --sq-dark: #2f6b48;
  --wood: #4a2f1c;
  --pc-black: #16201b;
  --pc-white: #f4efe2;
}

html, body { height: 100%; margin: 0; }
body { overflow: hidden; }

.screen { height: 100%; }

/* ------------------------------------------------------------ ecrã inicial */

#home {
  display: grid;
  grid-template-rows: 1fr auto;
  place-items: center;
  overflow: auto;
  padding: 24px 16px;
}

.home-card {
  width: min(460px, 100%);
  background: linear-gradient(180deg, rgba(28,44,35,.95), rgba(15,25,20,.95));
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 30px 28px 22px;
  box-shadow: 0 30px 70px rgba(0,0,0,.55);
}
.home-card .backhome { margin: -8px 0 10px -6px; }

.logo {
  margin: 0 0 4px;
  font-size: 36px;
  letter-spacing: -.02em;
  text-align: center;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.logo .pip {
  width: 20px; height: 20px; border-radius: 50%;
  box-shadow: inset 0 -2px 3px rgba(0,0,0,.35), 0 2px 4px rgba(0,0,0,.5);
}
.logo .pip.black { background: radial-gradient(circle at 34% 28%, #4a5a52, var(--pc-black) 70%); }
.logo .pip.white { background: radial-gradient(circle at 34% 28%, #fff, #cfc7b4 78%); }
.tagline { margin: 0 0 26px; text-align: center; color: var(--txt-dim); font-size: 14px; }

.field { display: block; margin-bottom: 18px; }
.field > span { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--txt-dim); margin-bottom: 6px; }

.home-actions { display: grid; gap: 14px; }
.home-actions .btn.primary { padding: 13px; font-size: 16px; }
.or { text-align: center; color: var(--txt-dim); font-size: 12px; text-transform: uppercase; letter-spacing: .1em; }
.joinrow { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.code-input { text-transform: uppercase; letter-spacing: .35em; font-weight: 700; text-align: center; }

.error { color: var(--danger); font-size: 13px; margin: 14px 0 0; text-align: center; }

.rules { margin-top: 22px; border-top: 1px solid var(--line); padding-top: 14px; }
.rules summary { cursor: pointer; color: var(--txt-dim); font-size: 13px; }
.rules-body { font-size: 13px; color: var(--txt-dim); }
.rules-body p { margin: 10px 0; }
.rules-body strong { color: var(--txt); }

.home-foot { color: #5f7268; font-size: 12px; padding: 14px; text-align: center; }

.seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.seg.seg2x2 { grid-template-columns: 1fr 1fr; }
.segbtn {
  background: rgba(0,0,0,.32);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 6px;
  cursor: pointer;
  color: var(--txt-dim);
  font-size: 14px; font-weight: 700;
  transition: border-color .15s, background .15s, color .15s;
}
.segbtn em {
  display: block;
  font-style: normal;
  font-weight: 500;
  font-size: 10.5px;
  letter-spacing: .01em;
  color: #7e9488;
  margin-top: 2px;
}
.segbtn:hover { border-color: rgba(255,255,255,.22); color: var(--txt); }
.segbtn.on { border-color: #3ec488; background: rgba(62,196,136,.12); color: var(--txt); }
.segbtn.on em { color: #9fc9b3; }

/* ------------------------------------------------------------- a mesa --- */

#room {
  display: grid;
  grid-template-columns: 1fr 330px;
  grid-template-rows: auto 1fr;
  grid-template-areas: "top top" "stage panel";
  height: 100%;
}

.topbar {
  grid-area: top;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 14px;
  background: rgba(0,0,0,.35);
  border-bottom: 1px solid var(--line);
}

.room-code { display: flex; align-items: center; gap: 8px; }
.room-code .label { font-size: 11px; text-transform: uppercase; letter-spacing: .1em; color: var(--txt-dim); }
.room-code strong { font-size: 19px; letter-spacing: .18em; color: var(--gold); }

.scoreboard {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
  max-width: 55%;
}
.scoreboard .schip {
  display: flex; align-items: baseline; gap: 5px;
  background: rgba(0,0,0,.3); border: 1px solid var(--line);
  border-radius: 999px; padding: 4px 10px; white-space: nowrap; flex: none;
}
.scoreboard .schip .n { font-size: 11px; color: var(--txt-dim); max-width: 80px; overflow: hidden; text-overflow: ellipsis; }
.scoreboard .schip .p { font-size: 14px; font-weight: 800; color: var(--gold); }
.scoreboard .schip.you { border-color: rgba(62,196,136,.5); background: rgba(62,196,136,.12); }
.scoreboard .target {
  font-size: 10px; text-transform: uppercase; letter-spacing: .08em;
  color: var(--txt-dim); flex: none; margin-left: 4px;
}

/* --------------------------------------------------------------- palco --- */

.stage {
  grid-area: stage;
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 0;
  padding: 12px 14px 14px;
  gap: 10px;
}

/* ----------------------------------------------------------- jogadores --- */

.players { display: flex; justify-content: center; gap: 10px; flex-wrap: wrap; }

.pcardbox {
  display: flex; align-items: center; gap: 10px;
  padding: 6px 14px 6px 8px;
  border-radius: 999px;
  background: rgba(0,0,0,.36);
  border: 1px solid rgba(255,255,255,.10);
  transition: box-shadow .2s, border-color .2s, background .2s;
  min-width: 190px;
}
.pcardbox.turn {
  border-color: var(--gold);
  box-shadow: 0 0 0 2px rgba(242,193,78,.35), 0 0 22px rgba(242,193,78,.28);
  background: rgba(60,45,10,.5);
}
.pcardbox.you { border-left: 3px solid #3ec488; }
.pcardbox.offline .pname { color: var(--txt-dim); }
.pcardbox.empty { opacity: .6; }

.stone {
  width: 30px; height: 30px; border-radius: 50%;
  flex: none;
  box-shadow: inset 0 -3px 4px rgba(0,0,0,.4), 0 2px 5px rgba(0,0,0,.5);
}
.stone.b { background: radial-gradient(circle at 34% 28%, #4a5a52, var(--pc-black) 72%); }
.stone.w { background: radial-gradient(circle at 34% 28%, #fff, #cdc5b2 80%); }
.stone.none { background: rgba(255,255,255,.08); box-shadow: none; }

.pcardbox .who { min-width: 0; flex: 1; }
.pcardbox .pname { font-weight: 600; font-size: 13.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 130px; }
.pcardbox .meta { font-size: 10.5px; color: var(--txt-dim); display: flex; gap: 5px; align-items: center; white-space: nowrap; }
.pcardbox .chip {
  font-size: 10px; text-transform: uppercase; letter-spacing: .05em;
  border: 1px solid var(--line); border-radius: 999px; padding: 1px 6px;
}
.pcardbox .chip.ready { color: var(--green); border-color: rgba(46,163,106,.5); }
.pcardbox .pieces {
  font-size: 19px; font-weight: 800; color: var(--txt);
  font-variant-numeric: tabular-nums; text-align: right; line-height: 1.05;
}
.pcardbox .pieces em {
  display: block; font-style: normal; font-weight: 600;
  font-size: 9.5px; letter-spacing: .04em; color: var(--gold);
}

/* ---------------------------------------------------------- tabuleiro --- */

.boardwrap {
  position: relative;
  min-height: 0;
  display: grid;
  place-items: center;
  /* Nada de overflow:auto aqui: com o tabuleiro dimensionado em % da largura
     e quadrado por aspect-ratio, uma barra de deslocamento estreitaria a
     caixa, que encolheria, que faria desaparecer a barra... sem fim. */
  overflow: hidden;
}

.boardbox {
  width: min(100%, 68vh, 620px);
  aspect-ratio: 1 / 1;
  padding: 10px;
  border-radius: 14px;
  background: linear-gradient(160deg, #5d3c24, var(--wood));
  box-shadow: 0 22px 50px rgba(0,0,0,.55), inset 0 0 0 1px rgba(255,255,255,.08);
  /* O contentor tem de ser o PAI: um elemento com container-type nao se
     consulta a si proprio, e um cqw posto aqui mediria a janela inteira. */
  container-type: inline-size;
}

.board {
  width: 100%; height: 100%;
  display: grid;
  border-radius: 6px;
  overflow: hidden;
  /* As letras das bordas, o anel das damas e as sombras das peças medem-se
     pela largura do tabuleiro, e escalam sozinhos em qualquer ecrã. */
  font-size: 11px;
}
@supports (font-size: 1cqw) {
  /* Com o clamp: num tabuleiro pequeno as letras nao ficam ilegiveis (chegaram
     a dar 5 px num palco estreito) e num grande nao incham. */
  .board { font-size: clamp(8px, 2.2cqw, 16px); }
}

.cell {
  position: relative;
  border: none;
  padding: 0;
  cursor: default;
  -webkit-tap-highlight-color: transparent;
}
.cell.light { background: var(--sq-light); }
.cell.dark { background: var(--sq-dark); }

/* Coordenadas discretas na borda da vista: o histórico fala em C3, F6... */
.cell[data-file]::after,
.cell[data-rank]::before {
  position: absolute;
  font-size: .95em;
  font-weight: 700;
  line-height: 1;
  opacity: .5;
  pointer-events: none;
}
.cell[data-file]::after { content: attr(data-file); right: .35em; bottom: .25em; }
.cell[data-rank]::before { content: attr(data-rank); left: .35em; top: .25em; }
.cell.light[data-file]::after, .cell.light[data-rank]::before { color: #6b5a35; }
.cell.dark[data-file]::after, .cell.dark[data-rank]::before { color: #cfe6d8; }

/* ------------------------------------------------------------- as peças */

.pc {
  position: absolute;
  inset: 11%;
  border-radius: 50%;
  transform: scale(.25);
  opacity: 0;
  transition: transform .18s ease, opacity .14s ease;
  pointer-events: none;
}
.cell[data-v="b"] .pc, .cell[data-v="B"] .pc,
.cell[data-v="w"] .pc, .cell[data-v="W"] .pc { opacity: 1; transform: scale(1); }

.cell[data-v="b"] .pc, .cell[data-v="B"] .pc {
  background: radial-gradient(circle at 34% 28%, #5a6a60, var(--pc-black) 72%);
  box-shadow: inset 0 -.18em .28em rgba(0,0,0,.55), 0 .12em .3em rgba(0,0,0,.5),
              0 0 0 1px rgba(255,255,255,.16);
}
.cell[data-v="w"] .pc, .cell[data-v="W"] .pc {
  background: radial-gradient(circle at 34% 28%, #fff, #cdc5b2 80%);
  box-shadow: inset 0 -.18em .28em rgba(0,0,0,.28), 0 .12em .3em rgba(0,0,0,.45),
              0 0 0 1px rgba(0,0,0,.28);
}

/* A dama leva um anel dourado — lê-se em cima de peça preta e de peça branca. */
.pc i {
  position: absolute;
  inset: 24%;
  border-radius: 50%;
  border: .13em solid var(--gold);
  box-shadow: 0 0 .3em rgba(242,193,78,.55), inset 0 0 .25em rgba(242,193,78,.4);
  opacity: 0;
  transition: opacity .18s ease;
}
.cell[data-v="B"] .pc i, .cell[data-v="W"] .pc i { opacity: 1; }

/* --------------------------------------------------------- interacção */

.cell.pickable, .cell.target, .cell.chosen { cursor: pointer; }

/* Peça que pode partir: anel dourado leve. Verde nao servia — as casas
   escuras sao verdes e o anel desaparecia contra elas. */
.cell.pickable .pc {
  box-shadow: inset 0 -.18em .28em rgba(0,0,0,.45), 0 0 0 .18em rgba(242,193,78,.55);
}
.board.picking .cell.pickable:not(.chosen) .pc {
  box-shadow: inset 0 -.18em .28em rgba(0,0,0,.45), 0 0 0 .18em rgba(242,193,78,.2);
}
/* Escrito com o .board a frente para ganhar em especificidade a regra de cima
   — senao passar por cima de uma peca esbatida nao lhe acendia o anel. */
.board .cell.pickable:hover .pc,
.board.picking .cell.pickable:hover .pc {
  box-shadow: inset 0 -.18em .28em rgba(0,0,0,.45), 0 0 0 .2em rgba(242,193,78,.9);
  transform: scale(1.06);
}

/* Peça escolhida: o mesmo dourado, mas cheio e com brilho. */
.cell.chosen .pc {
  box-shadow: inset 0 -.18em .28em rgba(0,0,0,.45), 0 0 0 .24em var(--gold), 0 0 1em rgba(242,193,78,.7);
  transform: scale(1.06);
}

/* A marca da casa: disco de pouso ou cruz de peça comida. Vive num elemento
   próprio porque os pseudo-elementos da casa levam as coordenadas da borda. */
.mk {
  position: absolute;
  left: 50%; top: 50%;
  width: 34%; height: 34%;
  transform: translate(-50%, -50%);
  opacity: 0;
  pointer-events: none;
  transition: width .12s, height .12s, opacity .12s;
}
.cell.target .mk {
  opacity: 1;
  border-radius: 50%;
  background: rgba(255,255,255,.45);
  box-shadow: 0 0 .5em rgba(255,255,255,.4);
}
.cell.target:hover .mk { width: 62%; height: 62%; }

/* Casa de onde a peça saiu, enquanto a sequência está a ser montada
   (outline em vez de box-shadow, para não brigar com o .last). */
.cell.stepped { outline: .14em dashed rgba(242,193,78,.75); outline-offset: -.14em; }

/* Peça condenada pela sequência que está a ser montada: esbatida e com a
   mesma cruz das que já foram comidas. O anel sozinho não chegava — a
   opacidade da peça também apaga a sombra, e ficava um vermelho lavado. */
.cell.doomed .pc {
  box-shadow: inset 0 -.18em .28em rgba(0,0,0,.45), 0 0 0 .18em var(--danger);
  opacity: .45;
}

.cell.last { box-shadow: inset 0 0 0 .14em var(--gold); }

/* A cruz vermelha: onde estava uma peça comida no lance anterior, e por cima
   das que a sequência em curso vai comer. */
.cell.eaten:not(.target) .mk,
.cell.doomed .mk {
  width: 44%; height: 44%;
  transform: translate(-50%, -50%) rotate(45deg);
  background:
    linear-gradient(to bottom, transparent 43%, #ff6b6b 43% 57%, transparent 57%),
    linear-gradient(to right, transparent 43%, #ff6b6b 43% 57%, transparent 57%);
}
.cell.eaten:not(.target) .mk { opacity: .7; }
.cell.doomed .mk { opacity: 1; filter: drop-shadow(0 0 .2em rgba(0,0,0,.7)); }

.turnhint { font-size: 13px; color: var(--txt-dim); min-height: 20px; text-align: center; }
.turnhint.active { color: var(--gold); font-weight: 600; }
.turnhint .aviso { color: var(--danger); font-weight: 700; }

/* --------------------------------------------------------------- lobby */

.lobby {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  overflow: auto;
  background: rgba(4,10,7,.62);
  z-index: 5;
}
.lobby-card {
  background: rgba(6,14,10,.92);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px 24px;
  width: min(520px, 100%);
  box-shadow: 0 24px 60px rgba(0,0,0,.5);
}
.lobby-card h2 { margin: 0 0 4px; font-size: 20px; }
.lobby-card .sub { margin: 0 0 18px; color: var(--txt-dim); font-size: 13px; }

.seatgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 16px; }
.seatslot {
  border: 1px solid var(--line);
  border-left: 3px solid rgba(255,255,255,.25);
  border-radius: 12px;
  padding: 10px 12px;
  background: rgba(255,255,255,.03);
  display: flex; align-items: center; gap: 10px;
  min-height: 62px;
}
.seatslot .slotinfo { min-width: 0; flex: 1; }
.seatslot .slotname { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.seatslot .slotsub { font-size: 11px; color: var(--txt-dim); }
.seatslot .slotactions { display: flex; gap: 6px; }
.seatslot .chip.you {
  font-size: 10px; text-transform: uppercase; letter-spacing: .05em;
  border: 1px solid var(--line); border-radius: 999px; padding: 1px 6px; color: var(--txt-dim);
}

.lobby-opts { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.lobby-opts label.wide { grid-column: 1 / -1; }
.lobby-opts label > span { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--txt-dim); display: block; margin-bottom: 4px; }
.lobby-opts select {
  width: 100%;
  background: #0e1713;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--txt);
  padding: 9px 10px;
  font: inherit;
}
.lobby-foot { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.lobby-foot .btn.primary { flex: 1; padding: 12px; }
.invite { font-size: 12px; color: var(--txt-dim); margin-top: 12px; text-align: center; word-break: break-all; }

/* --------------------------------------------------------------- painel */

.panel {
  grid-area: panel;
  background: var(--panel);
  border-left: 1px solid var(--line);
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 0;
}
.panel-tabs { display: flex; gap: 4px; padding: 8px; border-bottom: 1px solid var(--line); }
.tab {
  background: transparent; border: 1px solid transparent; border-radius: 8px;
  padding: 6px 12px; cursor: pointer; color: var(--txt-dim); font-size: 13px;
}
.tab.active { background: var(--panel-2); border-color: var(--line); color: var(--txt); }
.panel-body { min-height: 0; position: relative; }
.tabpane { display: none; height: 100%; min-height: 0; }
.tabpane.active { display: grid; grid-template-rows: 1fr auto; }
.tabpane[data-pane="log"], .tabpane[data-pane="info"] { overflow: auto; display: none; }
.tabpane[data-pane="log"].active, .tabpane[data-pane="info"].active { display: block; padding: 12px; }

.chatlog { overflow: auto; padding: 12px; display: flex; flex-direction: column; gap: 7px; }
.msg { font-size: 13.5px; }
.msg .from { font-weight: 700; color: var(--gold); }
.msg.sys { color: var(--txt-dim); font-style: italic; font-size: 12.5px; }
.chatform { display: grid; grid-template-columns: 1fr auto; gap: 8px; padding: 10px; border-top: 1px solid var(--line); }

.log { list-style: none; margin: 0; padding: 0; font-size: 12.5px; color: var(--txt-dim); }
.log li { padding: 4px 0; border-bottom: 1px solid rgba(255,255,255,.05); }

.info-row { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-bottom: 1px solid rgba(255,255,255,.06); font-size: 13px; }
.info-row .k { color: var(--txt-dim); flex: none; }
#tableInfo h4 { margin: 16px 0 6px; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--txt-dim); }

/* ------------------------------------------------------ modal / toast --- */

.overlay {
  position: fixed; inset: 0;
  background: rgba(2,8,5,.82);
  display: grid; place-items: center;
  z-index: 50;
  padding: 20px;
}
.modal {
  background: linear-gradient(180deg, #1a2a21, #101a14);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 26px 28px;
  width: min(460px, 100%);
  box-shadow: 0 30px 80px rgba(0,0,0,.6);
  text-align: center;
}
.modal h2 { margin: 0 0 6px; font-size: 24px; }
.modal .sub { color: var(--txt-dim); margin: 0 0 18px; }
.modal .actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.badge-result {
  display: inline-block; margin-bottom: 10px;
  padding: 4px 14px; border-radius: 999px;
  background: rgba(242,193,78,.16); border: 1px solid rgba(242,193,78,.45);
  color: var(--gold); font-weight: 700; font-size: 13px;
  text-transform: uppercase; letter-spacing: .08em;
}

.finalscore {
  display: flex; align-items: center; justify-content: center; gap: 18px;
  margin: 16px 0 6px;
}
.finalscore .side { display: grid; justify-items: center; gap: 6px; }
.finalscore .side .stone { width: 38px; height: 38px; }
.finalscore .side .big { font-size: 30px; font-weight: 800; font-variant-numeric: tabular-nums; }
.finalscore .side .nm { font-size: 12px; color: var(--txt-dim); max-width: 110px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.finalscore .side.win .big { color: var(--gold); }
.finalscore .vs { color: var(--txt-dim); font-size: 13px; }

.toast {
  position: fixed;
  bottom: 22px; left: 50%; transform: translateX(-50%);
  background: rgba(10,18,13,.95);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 13.5px;
  z-index: 60;
  box-shadow: 0 10px 30px rgba(0,0,0,.5);
}
.toast.bad { border-color: rgba(255,107,107,.5); color: #ffb3b3; }

.only-mobile { display: none; }

/* ------------------------------------------------------------ responsivo */

@media (max-width: 1080px) {
  #room { grid-template-columns: 1fr 290px; }
}

@media (max-width: 860px) {
  #room {
    grid-template-columns: 1fr;
    grid-template-areas: "top" "stage";
  }
  .panel {
    position: fixed; inset: 0 0 0 auto;
    width: min(360px, 92%);
    z-index: 40;
    transform: translateX(100%);
    transition: transform .22s ease;
    box-shadow: -20px 0 50px rgba(0,0,0,.5);
  }
  .panel.open { transform: none; }
  .only-mobile { display: grid; margin-left: auto; }
  .scoreboard { max-width: 40%; }
  .scoreboard .schip .n { display: none; }
  .boardbox { width: min(100%, 62vh); padding: 7px; }
  .pcardbox { min-width: 0; padding: 4px 10px 4px 6px; gap: 7px; }
  .pcardbox .meta { display: none; }
  .stone { width: 24px; height: 24px; }
  .seatgrid, .lobby-opts { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .topbar { gap: 8px; padding: 6px 8px; }
  .room-code .label { display: none; }
  .stage { padding: 8px; gap: 8px; }
  .boardbox { border-radius: 10px; }
  .seg.seg2x2 { grid-template-columns: 1fr; }
  .pcardbox .pieces { font-size: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .pc, .pc i, .cell.target::after { transition: opacity .1s; }
  .cell.pickable:hover .pc, .cell.chosen .pc { transform: none; }
}