/* Sudoku styles moved from static/chessweb/styles.css */
.sudoku-shell{
  min-height: calc(100vh - 64px);
  display:flex;
  align-items:center;
  justify-content:center;
  padding:32px 16px;
  background:
    radial-gradient(
      1200px 600px at 80% 0%,
      color-mix(in srgb, var(--accent, #caa48a) var(--accent-p20), #ffffff) 0%,
      transparent 60%
    ),
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--accent, #caa48a) var(--accent-p10), #ffffff) 0%,
      color-mix(in srgb, var(--accent, #caa48a) var(--accent-p10), #ffffff) 45%,
      color-mix(in srgb, var(--accent, #caa48a) var(--accent-p10), #ffffff) 100%
    );
}
.sudoku-shell--solo{
  background: transparent;
  padding: 12px 16px 20px;
  align-items:flex-start;
  justify-content:center;
}
.sudoku-card{border:1px solid #e5e5e5; box-shadow:0 12px 28px rgba(0,0,0,0.06); border-radius:24px;
  width: min(650px, 90vw);
  margin: 0 auto;
  padding: 14px 18px 14px;
  background: var(--accent, #caa48a); /* fallback */
  background: color-mix(in srgb, var(--accent, #caa48a) var(--accent-p10), #ffffff);
  border: var(--accent, #caa48a); /* fallback */
  border: 1px solid color-mix(in srgb, var(--accent, #caa48a) var(--accent-p10), #ffffff);
  box-shadow: 0 14px 36px rgba(31,20,10,0.08);
  backdrop-filter: blur(10px);
  --sudoku-size: 62%;
  --sudoku-cell: calc(var(--sudoku-size) / 9);
  --sudoku-numpad-gap: 16px;
  --sudoku-numpad-width: calc(3 * 72px + 2 * 8px + 2 * 14px);
}
html[data-mode="dark"] .sudoku-card{
  background: var(--accent, #caa48a); /* fallback */
  background: color-mix(in srgb, var(--accent, #caa48a) var(--accent-p40), #000000);
  border: var(--accent, #caa48a); /* fallback */
  border: 1px solid color-mix(in srgb, var(--accent, #caa48a) var(--accent-p40), #000000);
  box-shadow: 0 14px 36px rgba(0,0,0,0.18);
}
.sudoku-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  width: 100%;
  margin: 0 auto 12px;
  gap: var(--sudoku-numpad-gap);
}
.sudoku-header-left,
.sudoku-header-right{
  display:flex;
  align-items:center;
  gap:12px;
}
.sudoku-header-left{
  width: var(--sudoku-size);
  justify-content: space-between; /* Memo left, Check right pinned to board edges */
  gap: 0;
}
.sudoku-header-right{
  flex:1;
  justify-content:flex-end;
}
.sudoku-btn-check{
  margin-right: 0;
}

.sudoku-board-wrap{
  display:flex;
  align-items:center;
  justify-content:flex-start;
  gap: 16px;
}
.sudoku-entry-wrap{
  display:flex;
  justify-content:center;
}
.sudoku-numpad-wrap{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap: 6px;
}
.sudoku-table{
  width: var(--sudoku-size);
  border-collapse: collapse;
  border-spacing: 0;
  background: #ffffff;
  border-radius: 0;
  overflow: visible;
  margin: 0 auto;
  position: relative;
  border: 4px solid #2c2320;
  outline: 0;
  box-sizing: border-box;
}
.sudoku-td{
  padding: 0;
  background: #ffffff;
  position: relative;
  z-index: 0;
  border: 1px solid #cfcfcf;
}
.sudoku-td.alt{
  background: #f7f7f7;
  z-index: 0;
}
.sudoku-td.given{
  background: var(--accent, #E2B76F); /* fallback */
  background: color-mix(in srgb, var(--accent, #E2B76F) var(--accent-p10), #ffffff);
}
.sudoku-cell{
  width: calc(100% - 2px);
  aspect-ratio: 1 / 1;
  border: 0;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  background: transparent;
  color:#111827;
  -webkit-text-fill-color: #111827;
  opacity: 1;
  margin: 1px;
  position: relative;
  z-index: 0;
}
.sudoku-notes{
  position: absolute;
  inset: 2px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 1fr;
  gap: 2px;
  font-size: 9px;
  color: #6b5b52;
  pointer-events: none;
}
.sudoku-note{
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.sudoku-cell.given{
  background: transparent;
  color:#111827;
  -webkit-text-fill-color: #111827;
  position: relative;
  z-index: 0;
}
.sudoku-cell:focus{
  outline: none;
  background: transparent;
}
.sudoku-td.active{
  background: var(--accent, #E2B76F); /* fallback */
  background: color-mix(in srgb, var(--accent, #E2B76F) var(--accent-p30), #ffffff);
}
.sudoku-td.box-top{ border-top-width: 3px; border-top-color: #2c2320; }
.sudoku-td.box-left{ border-left-width: 3px; border-left-color: #2c2320; }
.sudoku-td.box-right{ border-right-width: 3px; border-right-color: #2c2320; }
.sudoku-td.box-bottom{ border-bottom-width: 3px; border-bottom-color: #2c2320; }
.sudoku-status{
  margin-top: 14px;
  font-weight: 600;
  color:#6b5b52;
  text-align:center;
}
.sudoku-replay .sudoku-status{
  font-size: 11px;
  color: #8a7c72;
  font-weight: 500;
}

.sudoku-numpad{
  display:grid;
  grid-template-columns: repeat(3, 72px);
  grid-auto-rows: 72px;
  gap: 8px;
  padding: 14px;
  margin-top: 0;
  border-radius: 12px;
  background: #ffffff !important;
  border: 1px solid #d9e2f2;
  box-shadow: 0 10px 18px rgba(31,20,10,0.06);
}
.sudoku-numpad-title{
  display: none;
  font-size: 15px;
  font-weight: 600;
  color:#6b5b52;
  text-align: center;
  margin: 0;
  align-self: center;
}
.sudoku-numpad-title.is-visible{
  display: block;
}
.sudoku-replay .sudoku-board-wrap{
  justify-content:center;
}
.sudoku-replay .sudoku-table{
  width: 450px;
  height: auto;
  box-shadow: none;
  background: #ffffff;
}
.sudoku-replay-profile{
  align-self: flex-start;
  width: auto;
  display: inline-flex;
  justify-content: center;
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 10px;
}
.sudoku-replay .sudoku-header{
  display: flex;
  align-items:center;
  justify-content: space-between;
  width: 100%;
}
.sudoku-replay-btn{
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 10px;
}
.sudoku-replay-footer{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  margin-top: 16px;
}
.sudoku-session-label{
  margin-top: 4px;
  font-size: 11px;
  color: #8a7c72;
  font-weight: 500;
  text-align: center;
}
.sudoku-replay-steps{
  margin-top: 8px;
  margin-bottom: 12px;
  font-weight: 600;
  color:#6b5b52;
  text-align:center;
}
.sudoku-replay .turn-indicator{
  display:flex;
  justify-content:center;
  margin-bottom: 14px;
}
.sudoku-replay #turnLabel{
  min-width: 96px;
  height: 44px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  background: var(--accent, #E2B76F); /* fallback */
  background: color-mix(in srgb, var(--accent, #E2B76F) var(--accent-p10), #ffffff);
  border: var(--accent, #E2B76F); /* fallback */
  border: 1px solid color-mix(in srgb, var(--accent, #E2B76F) var(--accent-p30), #ffffff);
  color: #2c2320;
}
.sudoku-pad-btn{
  border: 1px solid var(--gp-entry-control-border, color-mix(in srgb, var(--accent, #E2B76F) 18%, #ffffff));
  background: var(--gp-entry-control-bg, #ffffff);
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  color: var(--gp-entry-control-text, #0f172a);
  cursor: pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition: background-color 0.04s linear, border-color 0.04s linear, color 0.04s linear, transform 0.04s linear;
}
.sudoku-pad-btn.is-selected{
  background: var(--gp-entry-control-active, color-mix(in srgb, var(--accent, #E2B76F) 28%, #ffffff));
  border-color: var(--gp-entry-control-active-border, color-mix(in srgb, var(--accent, #E2B76F) 42%, #ffffff));
  color: var(--gp-entry-control-text, #0f172a);
}
.sudoku-pad-btn:hover{
  background: var(--gp-entry-control-hover, color-mix(in srgb, var(--accent, #E2B76F) 10%, #ffffff));
}
.sudoku-pad-clear{
  grid-column: span 3;
  font-size: 14px;
  padding: 14px 18px;
  border-radius: 16px;
  border: 1px solid var(--gp-entry-button-border, color-mix(in srgb, var(--accent, #E2B76F) 75%, #ffffff));
  background: var(--gp-entry-button-bg, color-mix(in srgb, var(--accent, #E2B76F) 55%, #ffffff));
  color: var(--gp-entry-control-text, #0f172a);
  font-weight: 800;
  box-shadow: none;
  transition: transform 0.1s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}
.sudoku-pad-clear:hover{
  background: color-mix(in srgb, var(--gp-entry-button-bg, color-mix(in srgb, var(--accent, #E2B76F) 55%, #ffffff)) 85%, #ffffff 15%);
  border-color: var(--gp-entry-button-border, color-mix(in srgb, var(--accent, #E2B76F) 75%, #ffffff));
  box-shadow: 0 10px 20px rgba(0,0,0,0.08);
}
.sudoku-pad-clear:active{
  transform: translateY(1px);
}
.sudoku-pad-icon{
  width: 50px;
  height: 50px;
  display: block;
}

.sudoku-entry-card{
  width: min(653px, 90vw);
}

@media (max-width: 640px){
  .sudoku-shell{
    min-height: calc(100dvh - 64px);
    padding: 12px 8px 16px;
    align-items: flex-start;
  }

  .sudoku-shell--solo{
    padding: 8px 8px 14px;
  }

  .sudoku-card{
    width: min(100%, 100vw - 16px);
    padding: 12px 12px 14px;
    border-radius: 18px;
    --sudoku-size: min(88vw, 390px);
    --sudoku-cell: calc(var(--sudoku-size) / 9);
    --sudoku-numpad-gap: 12px;
    --sudoku-numpad-width: 100%;
  }

  .sudoku-header{
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 10px;
  }

  .sudoku-header-left,
  .sudoku-header-right{
    width: 100%;
  }

  .sudoku-header-left{
    display:grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .sudoku-header-right{
    display:grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .sudoku-header .btn{
    width: 100%;
    min-width: 0;
    min-height: 44px;
    padding: 10px 12px;
    border-radius: 12px;
  }

  .sudoku-board-wrap{
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .sudoku-table{
    width: var(--sudoku-size);
    max-width: 100%;
    margin: 0 auto;
  }

  .sudoku-numpad-wrap{
    width: 100%;
    align-items: stretch;
    gap: 8px;
  }

  .sudoku-numpad-title{
    align-self: flex-start;
    font-size: 13px;
  }

  .sudoku-numpad{
    width: 100%;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-auto-rows: minmax(54px, 1fr);
    gap: 8px;
    padding: 12px;
    border-radius: 14px;
    box-shadow: 0 8px 18px rgba(31,20,10,0.06);
  }

  .sudoku-pad-btn{
    min-height: 54px;
    border-radius: 12px;
    font-size: 15px;
  }

  .sudoku-pad-clear{
    grid-column: span 3;
    min-height: 56px;
    border-radius: 14px;
  }

  .sudoku-pad-icon{
    width: 42px;
    height: 42px;
  }

  .sudoku-entry-card .sudoku-board-wrap{
    align-items: center;
  }

  .sudoku-entry-card .sudoku-entry-wrap{
    justify-content: center;
  }

  .sudoku-entry-card .sudoku-numpad{
    width: min(100%, 276px);
    grid-template-columns: repeat(3, 66px);
    grid-auto-rows: 66px;
    gap: 6px;
    padding: 10px;
    justify-content: center;
    margin-left: auto;
    margin-right: auto;
  }

  .sudoku-entry-card .sudoku-pad-btn{
    min-height: 66px;
    border-radius: 12px;
    font-size: 15px;
  }

  .sudoku-entry-card .sudoku-pad-clear{
    min-height: 52px;
  }

  .sudoku-cell{
    font-size: 16px;
  }

  .sudoku-status{
    margin-top: 10px;
  }
}
.sudoku-entry-header{
  margin-bottom: 18px;
}
.sudoku-entry-title{
  font-size: 32px;
  font-weight: 700;
  color: var(--gp-entry-title, #111827);
}
.sudoku-entry-sub{
  margin-top: 6px;
  font-size: 13px;
  color: var(--gp-entry-text, #334155);
}

html[data-mode="dark"] .sudoku-entry-title{
  color: var(--gp-entry-title, #ffffff);
}
html[data-mode="dark"] .sudoku-entry-sub{
  color: var(--gp-entry-text, #f3f4f6);
}
html[data-mode="dark"] .sudoku-entry-card .sudoku-pad-btn{
  background: #ffffff;
  color: #111827;
  border-color: #4f5d78;
}
html[data-mode="dark"] .sudoku-entry-card .sudoku-pad-btn:not(.is-selected){
  color: #111827;
}
html[data-mode="dark"] .sudoku-entry-card .sudoku-pad-btn.is-selected{
  background: var(--gp-entry-control-active, color-mix(in srgb, var(--accent, #E2B76F) 28%, #ffffff));
  border-color: var(--gp-entry-control-active-border, color-mix(in srgb, var(--accent, #E2B76F) 42%, #ffffff));
  color: var(--gp-entry-control-text, #0f172a);
}