/* ── Game-level CSS variables (defaults = Steel & Ice theme) ───── */
:root {
  --banner-bg:    #3a3f48;
  --body-bg:      #8090a0;
  --target-border:#4a8aaa;
  --target-digit: #40d8f0;
  --tile-bg:      #f0f2f4;
  --tile-empty-bg:#e0e4e8;
  --tile-border-r:#d0d4d8;
  --tile-border-t:#ffffff;
  --tile-border-b:#b0b8c0;
  --tile-color:   #222;
  --ctrl-bg:      linear-gradient(180deg,#c8d4dc,#b0c0cc);
  --ctrl-text:    #1e2c38;
  --btn-bg:       #b0bec8;
  --btn-border:   #8898a8;
  --btn-color:    #222;
  --btn-hover:    #c0ccd6;
  --ctrlbtn-bg:   #b0bec8;
  --ctrlbtn-border:#8898a8;
  --ctrlbtn-color:#222;
  --ctrlbtn-hover:#c0ccd6;
  /* Modal */
  --modal-bg:       #dce4e8;
  --modal-border:   #8898a8;
  --modal-text:     #1e2c38;
  --modal-subtext:  #4a5a68;
  --modal-header-bg:#3a3f48;
  --accent:         #2a6a8a;
  --accent-hover:   #1a5a7a;
  --modal-cancel-bg:#b8c8d0;
  --modal-cancel-color:#1e2c38;
  --modal-cancel-hover:#c8d8e0;
  /* Face-down selection tiles */
  --card-small-bg:     #4a6a8a;
  --card-small-border: #2a4a6a;
  --card-large-bg:     #2a4a6a;
  --card-large-border: #1a3050;
  /* Validator number keys */
  --numkey-small-bg:   #2a6a8a;
  --numkey-large-bg:   #2a4a6a;
  /* Input/text areas */
  --input-bg:          #f0f4f8;
  --input-color:       #1e2c38;
}

html, body {
  width: 100%; height: 100%; overflow: hidden;
  font-family: 'Oswald', 'Arial Narrow', Arial, sans-serif;
  background: var(--body-bg);
}

/* ── Master 3-band layout — offset by SM header ─────────────── */
#ng-layout {
  width: 100vw;
  height: calc(100vh - var(--sm-header-height, 26px));
  margin-top: var(--sm-header-height, 26px);
  display: flex;
  flex-direction: column;
}

/* Band 1 – banner */
#ng-banner {
  flex: 0 0 38vh;
  background: var(--banner-bg);
  display: flex; align-items: center; justify-content: center; position: relative;
}
#ng-menubar {
  position: absolute; top: 0; left: 0; display: flex;
  background: rgba(0,0,0,.15); z-index: 10;
}
.ng-menu-item {
  padding: 7px 18px; font-size: 16px; color: #fff; cursor: pointer;
  letter-spacing: 1px; user-select: none; transition: background .15s;
}
.ng-menu-item:hover { background: rgba(0,0,0,.3); }

#ng-target-box {
  background: #000; border: 8px solid var(--target-border);
  padding: 16px 48px; text-align: center;
}
#ng-target-num {
  /* Properties from original rule 1 — min-width:3ch is what forces the landscape shape
     in the blank state; without it the box collapses to portrait around a single   */
  font-size: clamp(80px,12vw,170px);
  font-weight: 700;
  color: var(--target-digit);
  letter-spacing: 8px;
  line-height: 1;
  min-width: 3ch;
  /* Properties from original rule 2 */
  display: flex;
  gap: 4px;
  justify-content: center;
  align-items: flex-end;
}
.ng-digit-slot {
  display: inline-block; overflow: hidden;
  height: 1.1em; line-height: 1.1;
  font-size: clamp(80px,12vw,170px); font-weight: 700;
  color: var(--target-digit); letter-spacing: 4px;
}
.ng-digit-reel {
  display: flex; flex-direction: column;
  transition: none;
}
.ng-digit-reel span { display: block; text-align: center; }
@keyframes ngReelSpin {
  0%   { transform: translateY(0); }
  100% { transform: translateY(var(--reel-end)); }
}
.ng-digit-reel.spinning {
  animation: ngReelSpin var(--reel-dur) cubic-bezier(.15,.5,.4,1) forwards;
}
@keyframes ngUrgPulse {
  0%,100% { border-color: var(--target-border); }
  50% { border-color: #ff2200; box-shadow: 0 0 40px rgba(255,34,0,.8); }
}
#ng-target-box.urgent { animation: ngUrgPulse .55s ease-in-out infinite; }

/* Prepared badge */
#ng-prepared-badge {
  display: none; position: absolute; top: 36px; right: 12px;
  background: rgba(0,100,0,.75); color: #fff; padding: 6px 14px;
  font-size: 14px; font-weight: 700; letter-spacing: 2px; border-radius: 4px;
  border: 1px solid rgba(255,255,255,.3);
}
#ng-prepared-badge.visible { display: block; }

/* Band 2 – tiles bar */
#ng-tiles-bar {
  flex: 0 0 auto; min-height: 72px; max-height: 100px; height: 9vh;
  display: flex;
}
.ng-tile-cell {
  flex: 1; display: flex; align-items: center; justify-content: center;
  font-size: clamp(30px,5.5vw,70px); font-weight: 700; color: var(--tile-color);
  background: var(--tile-bg); border-right: 3px solid var(--tile-border-r);
  border-top: 4px solid var(--tile-border-t); border-bottom: 4px solid var(--tile-border-b);
  user-select: none;
}
.ng-tile-cell:last-child { border-right: none; }
.ng-tile-cell.empty { background: var(--tile-empty-bg); }
.ng-tile-cell:not(.empty) { cursor: pointer; transition: background .12s; }
.ng-tile-cell:not(.empty):hover { filter: brightness(1.25); }

@keyframes ngTileArrive {
  0%   { transform: scale(.4); opacity: 0; }
  70%  { transform: scale(1.08); }
  100% { transform: scale(1);   opacity: 1; }
}
@keyframes ngTileSort {
  0%   { transform: scale(1);   opacity: 1; }
  30%  { transform: scale(.85); opacity: .5; }
  100% { transform: scale(1);   opacity: 1; }
}
.ng-tile-cell.arriving    { animation: ngTileArrive .3s ease-out forwards; }
.ng-tile-cell.rearranging { animation: ngTileSort .35s ease-in-out forwards; }

/* Band 3 – control zone */
#ng-control-zone {
  flex: 1; background: var(--ctrl-bg);
  display: flex; position: relative; overflow: hidden;
}
#ng-ctrl-left {
  flex: 1; display: flex; flex-direction: column;
  padding: 14px 18px 70px; gap: 10px; overflow: hidden;
}
#ng-ctrl-right {
  flex: 0 0 auto; width: min(36%,350px);
  display: flex; align-items: center; justify-content: center;
  padding: 10px 18px 60px 0;
}

/* Screens */
.ng-screen { display: none; flex-direction: column; gap: 10px; height: 100%; overflow: hidden; }
.ng-screen.active { display: flex; }

/* Select screen */
#ng-sel-instructions {
  font-size: clamp(14px,1.7vw,21px); color: var(--ctrl-text); line-height: 1.5;
}
#ng-sel-grid { display: flex; flex-direction: column; gap: 5px; flex: 1; }
.ng-sel-row { display: flex; gap: 5px; flex: 1; }

.ng-sel-tile {
  flex: 1; display: flex; align-items: center; justify-content: center;
  font-size: clamp(16px,2.4vw,30px); font-weight: 700; color: transparent;
  background: var(--card-small-bg); border: 2px solid var(--card-small-border);
  border-radius: 3px; cursor: pointer; user-select: none;
  transition: background .12s;
  background-image: repeating-linear-gradient(
    45deg, rgba(255,255,255,.06) 0px, rgba(255,255,255,.06) 2px,
    transparent 2px, transparent 8px);
}
.ng-sel-tile:hover:not(.ng-tile-gone) {
  filter: brightness(1.15);
  box-shadow: 0 0 0 3px rgba(255,255,255,.4);
}
.ng-sel-tile.large-t {
  background-color: var(--card-large-bg); border-color: var(--card-large-border);
  max-width: 100px;
}
.ng-sel-tile.large-t:hover:not(.ng-tile-gone) { filter: brightness(1.15); }

@keyframes ngTileFlip {
  0%   { transform: rotateY(0deg);  color: transparent; }
  40%  { transform: rotateY(90deg); color: transparent; }
  60%  { transform: rotateY(90deg); color: #fff; }
  100% { transform: rotateY(0deg);  color: #fff; }
}
@keyframes ngTileVanish {
  0%   { transform: scale(1); opacity: 1; }
  100% { transform: scale(0); opacity: 0; }
}
.ng-sel-tile.ng-tile-revealing {
  animation: ngTileFlip .35s ease-in-out forwards; pointer-events: none;
}
.ng-sel-tile.ng-tile-vanishing {
  animation: ngTileVanish .25s ease-in forwards; pointer-events: none;
}
.ng-sel-tile.ng-tile-gone {
  opacity: 0; pointer-events: none;
  background: transparent !important; border-color: transparent !important;
  box-shadow: none !important;
}

/* Ready screen */
#ng-ready-screen .ng-ready-msg {
  font-size: clamp(18px,2.5vw,30px); color: var(--ctrl-text); letter-spacing: 1px; padding: 8px 0;
}

/* Play screen */
#ng-play-hint {
  font-size: clamp(18px,2.5vw,30px); color: var(--ctrl-text); letter-spacing: 1px; padding: 8px 0;
}

/* After screen */
#ng-ctrl-btns { display: flex; gap: 10px; flex-wrap: wrap; }
.ng-ctrl-btn {
  font-family: 'Oswald', sans-serif; font-size: clamp(14px,1.8vw,21px);
  font-weight: 600; letter-spacing: 2px; background: var(--ctrlbtn-bg);
  border: 2px solid var(--ctrlbtn-border); color: var(--ctrlbtn-color);
  padding: 8px 22px; cursor: pointer; transition: background .15s;
}
.ng-ctrl-btn:hover { background: var(--ctrlbtn-hover); }
.ng-ctrl-btn:disabled { opacity: .4; cursor: not-allowed; }

#ng-sol-status { font-size: clamp(13px,1.5vw,18px); color: var(--ctrl-text); letter-spacing: .5px; }
#ng-sol-list {
  flex: 1; overflow-y: auto; background: rgba(255,255,255,.2);
  border: 1px solid rgba(0,0,0,.2); padding: 10px 14px;
  font-size: clamp(13px,1.5vw,18px); color: var(--ctrl-text);
  font-family: 'Courier New', monospace; line-height: 2;
}
#ng-sol-list::-webkit-scrollbar { width: 6px; }
#ng-sol-list::-webkit-scrollbar-track { background: rgba(0,0,0,.1); }
#ng-sol-list::-webkit-scrollbar-thumb { background: rgba(0,0,0,.25); border-radius: 3px; }

.ng-sol-item { cursor: pointer; border-radius: 2px; padding: 0 4px; transition: background .1s; }
.ng-sol-item:hover { background: rgba(0,100,200,.15); }

/* Big button bar */
#ng-big-btn-area {
  position: absolute; bottom: 0; left: 0; right: 0;
  height: clamp(50px,8vh,78px); display: flex;
  align-items: stretch; justify-content: center; z-index: 5;
}
.ng-big-btn {
  font-family: 'Oswald', sans-serif; font-size: clamp(20px,2.8vw,38px);
  font-weight: 700; letter-spacing: 4px; background: var(--btn-bg);
  border: 2px solid var(--btn-border); color: var(--btn-color);
  cursor: pointer; flex: 1; max-width: 640px; transition: background .15s;
}
.ng-big-btn:hover { background: var(--btn-hover); }
.ng-big-btn:disabled { opacity: .35; cursor: not-allowed; }

/* Clock */
#ng-clock-wrap { width: 100%; aspect-ratio: 1; max-width: 310px; }

/* Spinner */
@keyframes ngSpin { to { transform: rotate(360deg); } }
.ng-spinner {
  display: inline-block; width: 13px; height: 13px;
  border: 2px solid #888; border-top-color: #333;
  border-radius: 50%; animation: ngSpin .8s linear infinite;
  vertical-align: middle; margin-right: 7px;
}

/* Start countdown overlay — offset below SM header */
#ng-start-overlay {
  position: fixed !important;
  top: var(--sm-header-height, 26px) !important;
  bottom: 0; left: 0; right: 0;
  z-index: 200;
}

/* ── Modals ─────────────────────────────────────────────────── */
.ng-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.55);
  display: flex; align-items: center; justify-content: center; z-index: 200;
}
.ng-overlay.hidden { display: none; }
.ng-modal {
  background: var(--modal-bg); border: 2px solid var(--modal-border);
  border-radius: 3px; min-width: 400px; max-width: 90vw;
  box-shadow: 0 8px 32px rgba(0,0,0,.45); overflow: hidden;
}
.ng-modal-header {
  background: var(--modal-header-bg); color: #fff; padding: 9px 14px;
  font-size: 17px; font-weight: 700; letter-spacing: 2px;
  display: flex; justify-content: space-between; align-items: center;
}
.ng-modal-close {
  background: #c03020; color: #fff; border: none;
  width: 22px; height: 22px; cursor: pointer; font-size: 13px; font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.ng-modal-body { padding: 18px 22px; display: flex; flex-direction: column; gap: 12px; }

.ng-tabs { display: flex; border-bottom: 2px solid var(--modal-border); }
.ng-tab {
  padding: 7px 16px; font-size: 14px; cursor: pointer;
  border: 1px solid transparent; border-bottom: none; margin-bottom: -2px;
  letter-spacing: 1px; color: var(--modal-subtext);
}
.ng-tab.active {
  background: var(--modal-bg); border-color: var(--modal-border);
  color: var(--modal-text); font-weight: 700;
}
.ng-tab-panel { display: none; padding: 14px 0 4px; }
.ng-tab-panel.active { display: block; }

.ng-field-row { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.ng-field-label { font-size: 14px; color: var(--modal-text); min-width: 120px; }
.ng-field-input {
  background: #fff; border: 1px solid var(--modal-border); border-radius: 2px;
  font-family: 'Oswald', sans-serif; font-size: 16px; font-weight: 600;
  padding: 5px 10px; width: 80px; text-align: center;
}
.ng-field-input:focus { outline: none; border-color: var(--accent); }
select.ng-field-input { width: 90px; }

.ng-modal-footer { padding: 8px 22px 16px; display: flex; gap: 8px; justify-content: flex-end; }
.ng-modal-btn {
  font-family: 'Oswald', sans-serif; font-size: 14px; font-weight: 600;
  letter-spacing: 1px; padding: 7px 18px; border: 1px solid var(--modal-border); cursor: pointer;
}
.ng-modal-btn-ok {
  background: var(--accent); color: #fff; border-color: var(--accent-hover);
}
.ng-modal-btn-ok:hover { background: var(--accent-hover); }
.ng-modal-btn-cancel { background: var(--modal-cancel-bg); color: var(--modal-cancel-color); }
.ng-modal-btn-cancel:hover { background: var(--modal-cancel-hover); }

/* Settings modal */
#ng-modal-settings .ng-modal { width: 420px; }
#ng-modal-settings .ng-modal-body { height: 400px; overflow: hidden; }
#ng-modal-settings .ng-tab-panel { height: 340px; overflow: hidden; }
#ng-modal-settings #ng-tab-theme { overflow-y: auto; }

/* Difficulty presets */
.ng-preset-row { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.ng-preset-btn {
  font-family: 'Oswald', sans-serif; font-size: 14px; font-weight: 700;
  letter-spacing: 1px; padding: 7px 16px;
  border: 2px solid var(--modal-border); border-radius: 3px; cursor: pointer;
  background: var(--modal-cancel-bg); color: var(--modal-cancel-color);
  transition: filter .12s;
}
.ng-preset-btn:hover { filter: brightness(1.08); }
.ng-preset-btn.active { background: var(--accent); color: #fff; border-color: var(--accent-hover); }
.ng-custom-range { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
#ng-custom-range-fields { display: flex; flex-direction: column; }
#ng-custom-range-fields.hidden { display: none; }

/* Validator */
#ng-val-target-line {
  text-align: center; font-size: 26px; font-weight: 700;
  color: #fff; background: var(--modal-header-bg); padding: 12px; letter-spacing: 2px;
}
#ng-val-working {
  background: var(--input-bg);
  height: 290px; overflow-y: auto;
  padding: 18px 24px; font-size: 22px; font-weight: 700; color: var(--input-color);
  font-family: 'Courier New', monospace; line-height: 2.2;
}
.ng-wline-ok   { color: #006600; }
.ng-wline-err  { color: #cc0000; }
.ng-wline-live { color: var(--modal-subtext); font-style: italic; }
.ng-wline-warn { color: #aa6600; font-style: italic; font-size: .85em; }

#ng-val-keypad { display: flex; flex-direction: column; gap: 6px; }
#ng-val-numrow { display: flex; gap: 5px; flex-wrap: wrap; }
.ng-val-numkey {
  min-width: 54px; flex: 1; height: 52px; background: var(--numkey-small-bg); color: #fff;
  font-family: 'Oswald', sans-serif; font-size: 22px; font-weight: 700;
  border: 2px solid rgba(0,0,0,.25); border-radius: 3px; cursor: pointer;
  transition: filter .12s;
}
.ng-val-numkey:hover:not(:disabled) { filter: brightness(1.15); }
.ng-val-numkey:disabled { opacity: .3; cursor: not-allowed; }
.ng-val-numkey.large-n { background: var(--numkey-large-bg); }
#ng-val-oprow { display: flex; gap: 5px; }
.ng-val-opkey {
  flex: 1; height: 48px; background: var(--modal-cancel-bg); color: var(--modal-text);
  font-family: 'Oswald', sans-serif; font-size: 22px; font-weight: 700;
  border: 1px solid var(--modal-border); border-radius: 3px; cursor: pointer;
  transition: filter .12s;
}
.ng-val-opkey:hover { filter: brightness(1.08); }
#ng-val-bottom-row { display: flex; gap: 5px; }
.ng-val-sidekey {
  background: var(--modal-cancel-bg); color: var(--modal-cancel-color);
  font-family: 'Oswald', sans-serif; font-size: 17px; font-weight: 700;
  border: 1px solid var(--modal-border); border-radius: 3px; cursor: pointer;
  padding: 10px 22px;
}
.ng-val-sidekey:hover { filter: brightness(1.08); }
.ng-val-eqkey {
  flex: 1; height: 48px; background: var(--accent); color: #fff;
  font-family: 'Oswald', sans-serif; font-size: 22px; font-weight: 700;
  border: 1px solid var(--accent-hover); border-radius: 3px; cursor: pointer;
}
.ng-val-eqkey:hover { background: var(--accent-hover); }
#ng-val-verdict {
  text-align: center; font-size: 22px; font-weight: 700; padding: 12px;
  border-radius: 3px; letter-spacing: 2px; display: none; margin-top: 2px;
}
#ng-val-verdict.ok { background: #ccffcc; color: #005500; border: 1px solid #00aa00; display: block; }
#ng-val-verdict.err { background: #ffcccc; color: #660000; border: 1px solid #cc0000; display: block; }

/* Solution Walkthrough Modal */
#ng-modal-walk .ng-modal { width: min(700px,92vw); }
#ng-walk-header-bar {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--modal-header-bg); color: #fff; padding: 10px 16px;
  font-size: 16px; font-weight: 700; letter-spacing: 1px;
}
#ng-walk-nav { display: flex; align-items: center; gap: 10px; }
.ng-walk-nav-btn {
  background: rgba(255,255,255,.2); border: 1px solid rgba(255,255,255,.4);
  color: #fff; font-family: 'Oswald', sans-serif; font-size: 18px; font-weight: 700;
  width: 34px; height: 34px; cursor: pointer; border-radius: 3px;
  display: flex; align-items: center; justify-content: center;
}
.ng-walk-nav-btn:disabled { opacity: .3; cursor: not-allowed; }
.ng-walk-nav-btn:not(:disabled):hover { background: rgba(255,255,255,.35); }
#ng-walk-sol-count { font-size: 15px; min-width: 60px; text-align: center; }
#ng-walk-target-bar {
  text-align: center; background: #000; color: var(--target-digit);
  font-size: clamp(28px,4vw,48px); font-weight: 700; padding: 12px; letter-spacing: 6px;
}
#ng-walk-steps {
  background: var(--input-bg); height: 278px; padding: 18px 24px;
  font-family: 'Courier New', monospace; font-size: 22px;
  font-weight: 700; line-height: 2.2; overflow-y: auto; color: var(--input-color);
}
.ng-walk-step { color: var(--input-color); }
.ng-walk-step.ng-walk-final { color: #006600; }
.ng-walk-step-hidden { color: transparent; user-select: none; height: 2.2em; display: block; }
#ng-walk-footer {
  display: flex; align-items: center; gap: 10px; padding: 12px 18px;
  background: var(--modal-cancel-bg); border-top: 2px solid var(--modal-border);
  justify-content: space-between; flex-wrap: wrap;
}
#ng-walk-step-counter { font-size: 15px; font-weight: 700; color: var(--modal-subtext); min-width: 90px; }
.ng-walk-ctrl-btn {
  font-family: 'Oswald', sans-serif; font-size: 15px; font-weight: 700;
  letter-spacing: 1px; padding: 8px 20px; border: 2px solid var(--modal-border);
  background: var(--modal-cancel-bg); color: var(--modal-cancel-color);
  cursor: pointer; border-radius: 3px;
}
.ng-walk-ctrl-btn:hover { background: var(--modal-cancel-hover); }
.ng-walk-ctrl-btn.primary { background: var(--accent); color: #fff; border-color: var(--accent-hover); }
.ng-walk-ctrl-btn.primary:hover { background: var(--accent-hover); }
.ng-walk-ctrl-btn:disabled { opacity: .35; cursor: not-allowed; }

/* Walkthrough Mode A (bracket collapse) */
#ng-walk-expr {
  height: 278px; background: var(--input-bg);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 12px 20px; overflow: hidden; gap: 14px;
}
.ng-wa-expr-row { display: flex; align-items: center; justify-content: center; width: 100%; }
.ng-wa-annot-row { display: flex; align-items: center; justify-content: center; min-height: 1.4em; }
.ng-wa-wrap {
  font-family: 'Oswald', sans-serif; font-size: clamp(18px,3vw,34px);
  font-weight: 700; text-align: center; letter-spacing: 1px;
  line-height: 1.9; word-break: break-word; color: var(--input-color); max-width: 100%;
}
.ng-wa-answer {
  font-family: 'Oswald', sans-serif; font-size: clamp(24px,4vw,48px);
  font-weight: 700; letter-spacing: 3px; color: var(--accent);
}
.ng-wa-answer-final { color: #006600; }
.ng-wa-num    { color: var(--input-color); }
.ng-wa-op     { color: var(--modal-subtext); margin: 0 3px; font-weight: 700; }
.ng-wa-bracket { color: var(--modal-subtext); opacity: .55; }
.ng-wa-collapsed { color: var(--accent); font-weight: 700; }
.ng-wa-future { opacity: 1; }
.ng-wa-future .ng-wa-num { opacity: .7; }
.ng-wa-future .ng-wa-op  { opacity: .55; }
.ng-wa-active {
  border-radius: 5px; padding: 1px 5px;
  box-shadow: 0 0 0 2px var(--accent), 0 2px 10px rgba(0,0,0,.15);
  background: var(--modal-cancel-bg); display: inline;
}
.ng-wa-active > .ng-wa-bracket { color: var(--accent); opacity: 1; }
.ng-wa-active.ng-wa-final { box-shadow: 0 0 0 2px #006600, 0 2px 10px rgba(0,100,0,.2); }
.ng-wa-active.ng-wa-final > .ng-wa-bracket { color: #006600; }
#ng-walk-mode-toggle {
  font-family: 'Oswald', sans-serif; font-size: 12px; font-weight: 700;
  letter-spacing: .5px; padding: 3px 9px; border-radius: 3px;
  border: 1px solid var(--modal-border); background: var(--modal-bg);
  color: var(--modal-subtext); cursor: pointer;
}
#ng-walk-mode-toggle:hover { background: var(--modal-cancel-bg); }

/* Print Worksheet Modal */
#ng-modal-print .ng-modal { width: 420px; }
#ng-print-area { display: none; }
@media print {
  body > * { display: none !important; }
  #ng-print-area {
    display: block !important; font-family: 'Arial Narrow', Arial, sans-serif;
    color: #000; background: #fff;
  }
  #ng-print-area h1 {
    font-size: 20pt; font-weight: bold; text-align: center;
    margin: 0 0 12pt; letter-spacing: 2pt;
  }
  .print-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12pt; }
  .puzzle-card { border: 2pt solid #333; padding: 10pt; break-inside: avoid; }
  .puzzle-target-box {
    border: 3pt solid #333; background: #111; color: #fff;
    text-align: center; font-size: 26pt; font-weight: bold;
    padding: 5pt 0; margin-bottom: 7pt; letter-spacing: 4pt;
  }
  .puzzle-tiles { display: flex; gap: 4pt; margin-bottom: 7pt; }
  .puzzle-tile {
    flex: 1; border: 2pt solid #333; text-align: center;
    font-size: 15pt; font-weight: bold; padding: 4pt 0;
  }
  .puzzle-tile.large-tile { background: #ddd; }
  .puzzle-working { border-top: 1pt solid #999; margin-top: 5pt; }
  .puzzle-working-line { border-bottom: 1pt solid #ccc; height: 17pt; }
  .puzzle-answer { font-size: 9pt; color: #555; margin-top: 5pt; border-top: 1pt dotted #999; padding-top: 3pt; }
  .print-grid[data-count="6"] { gap: 8pt; }
  #ng-print-area:has(.print-grid[data-count="6"]) h1 { font-size: 16pt; margin-bottom: 7pt; }
  .print-grid[data-count="6"] .puzzle-card { padding: 7pt; }
  .print-grid[data-count="6"] .puzzle-target-box { font-size: 20pt; padding: 4pt 0; margin-bottom: 5pt; }
  .print-grid[data-count="6"] .puzzle-tile { font-size: 12pt; padding: 3pt 0; }
  .print-grid[data-count="6"] .puzzle-working-line { height: 14pt; }
  .print-grid[data-count="8"] { gap: 6pt; }
  #ng-print-area:has(.print-grid[data-count="8"]) h1 { font-size: 13pt; margin-bottom: 5pt; }
  .print-grid[data-count="8"] .puzzle-card { padding: 5pt; }
  .print-grid[data-count="8"] .puzzle-target-box { font-size: 16pt; padding: 3pt 0; margin-bottom: 4pt; letter-spacing: 2pt; }
  .print-grid[data-count="8"] .puzzle-tile { font-size: 10pt; padding: 2pt 0; border-width: 1pt; }
  .print-grid[data-count="8"] .puzzle-working-line { height: 11pt; }
  .print-grid[data-count="10"] { gap: 5pt; }
  #ng-print-area:has(.print-grid[data-count="10"]) h1 { font-size: 11pt; margin-bottom: 4pt; }
  .print-grid[data-count="10"] .puzzle-card { padding: 4pt; }
  .print-grid[data-count="10"] .puzzle-target-box { font-size: 13pt; padding: 2pt 0; margin-bottom: 3pt; letter-spacing: 1pt; }
  .print-grid[data-count="10"] .puzzle-tile { font-size: 9pt; padding: 2pt 0; border-width: 1pt; }
  .print-grid[data-count="10"] .puzzle-working-line { height: 10pt; }
  @page { size: A4; margin: 12mm; }
}

/* Theme swatches */
#ng-theme-swatches { display: flex; flex-wrap: wrap; gap: 8px; padding: 4px 0; }
.ng-theme-swatch {
  width: calc(50% - 4px); cursor: pointer; border: 3px solid transparent;
  border-radius: 3px; overflow: hidden; transition: border-color .12s;
}
.ng-theme-swatch:hover { border-color: var(--accent); }
.ng-theme-swatch.active { border-color: var(--accent); }
.ng-swatch-banner { height: 26px; }
.ng-swatch-tiles  { height: 16px; display: flex; }
.ng-swatch-tile   { flex: 1; border-right: 1px solid rgba(0,0,0,.25); }
.ng-swatch-tile:last-child { border-right: none; }
.ng-swatch-ctrl   { height: 14px; }
.ng-swatch-name {
  font-size: 12px; font-weight: 700; padding: 3px 6px; text-align: center;
  background: var(--modal-cancel-bg); color: var(--modal-text); letter-spacing: .5px;
}
.ng-theme-swatch.active .ng-swatch-name { background: var(--accent); color: #fff; }

/* Manual setup modal */
#ng-manual-grid { display: flex; flex-direction: column; gap: 4px; }
.ng-manual-row { display: flex; gap: 4px; }
.ng-msel-tile {
  flex: 1; height: 38px; background: var(--card-small-bg);
  border: 2px solid var(--card-small-border); border-radius: 3px;
  font-size: 17px; font-weight: 700; color: #fff;
  cursor: pointer; user-select: none;
  display: flex; align-items: center; justify-content: center;
  transition: background .12s;
}
.ng-msel-tile:hover:not(.ng-msel-disabled) { filter: brightness(1.15); }
.ng-msel-tile.ng-msel-selected { filter: brightness(0.75); border-color: rgba(255,255,255,.5); }
.ng-msel-tile.ng-msel-large { background: var(--card-large-bg); border-color: var(--card-large-border); max-width: 80px; }
.ng-msel-tile.ng-msel-large:hover:not(.ng-msel-disabled) { filter: brightness(1.15); }
.ng-msel-tile.ng-msel-large.ng-msel-selected { filter: brightness(0.75); }
.ng-msel-tile.ng-msel-disabled { opacity: .32; cursor: not-allowed; }
#ng-manual-slots { display: flex; gap: 5px; margin: 5px 0; }
.ng-manual-slot {
  flex: 1; height: 42px; border: 2px dashed var(--modal-border); border-radius: 3px;
  display: flex; align-items: center; justify-content: center;
  font-size: 21px; font-weight: 700; color: var(--modal-subtext); transition: all .2s;
}
.ng-manual-slot.filled { background: var(--numkey-small-bg); border-color: var(--numkey-small-bg); color: #fff; }
.ng-manual-slot.filled.large { background: var(--numkey-large-bg); border-color: var(--numkey-large-bg); }