/* cobalt-khamas-tetris.css — Khamas Tetris chrome on the Cobalt schema (claude_20261002_cobalt, sub-agent training-a, 2026-10-03).
 * Loads last. The board, its pieces and the touch pad deck keep their own look; HUD, cards, type and buttons use the tokens. */

:root, :root[data-theme] {
  --of-paper: var(--paper); --of-ink: var(--ink); --of-muted: var(--muted); --pressed: var(--accent-subtle);
  --btn: var(--card); --btn-line: var(--rule); --accent-fill: var(--cobalt);
  color: var(--ink); font-family: var(--font); color-scheme: light dark;
}
:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] { color-scheme: dark; }
@media (display-mode: standalone) { :root, :root[data-theme] { --of-paper: var(--paper); --of-ink: var(--ink); --of-muted: var(--muted); --pressed: var(--accent-subtle); --btn: var(--card); --btn-line: var(--rule); } }
.c-game button { font-family: var(--font); }
.c-game button:focus-visible { outline: 2px solid var(--cobalt); outline-offset: 2px; }

/* HUD: one thin glass line; readouts are small labels over bold numbers */
.c-game .hud { background: var(--glass-strong); color: var(--ink); border-bottom: 1px solid var(--glass-line); }
.c-game .hud-btn { border-color: transparent; border-radius: 6px; background: transparent; color: var(--ink); }
.c-game .hud-btn:hover { background: var(--accent-subtle); }
.c-game .hud-btn:active { background: var(--accent-subtle); }
.c-game .hud-btn svg { width: 18px; height: 18px; stroke-width: 1.5; }
.c-game .hud-label { color: var(--muted); font-size: 10px; font-weight: 700; letter-spacing: .08em; }
.c-game .hud-val { font-size: 16px; font-weight: 700; }
/* Pause and the touch pads do nothing behind the lobby card: hide them until play starts (training.md) */
.c-game:has(#lobby:not([hidden])) #btn-pause, .c-game:has(#lobby:not([hidden])) .deck { visibility: hidden; }
.c-game .chip { background: var(--glass-strong); border-color: var(--glass-line); color: var(--ink); font-size: 12px; }

/* card layers: glass, content-sized, small type with bold ledes */
.c-game .card-layer { background: var(--scrim); }
html[data-theme=light] .c-game .card-layer { background: var(--scrim); }
.c-game .card-layer > .card-body { max-width: 26rem; padding: 16px; border-radius: var(--r-sheet); background: var(--glass); border-color: var(--glass-line); box-shadow: var(--shadow); color: var(--ink); -webkit-backdrop-filter: var(--blur); backdrop-filter: var(--blur); }
@media (prefers-reduced-transparency: reduce) { .c-game .card-layer > .card-body { background: var(--glass-strong); -webkit-backdrop-filter: none; backdrop-filter: none; } }
.c-game .eyebrow, html[data-theme] .c-game .eyebrow { margin-bottom: 4px !important; color: var(--muted); font: 700 10px/1.2 var(--font); letter-spacing: .08em; text-transform: uppercase; }
.c-game .lobby-card h1 { font-size: var(--fs-title); font-weight: 700; }
.c-game .pause-dialog h2, .c-game .over-dialog h2 { font-size: 17px; font-weight: 700; }
.c-game .lede { color: var(--muted); font-size: var(--fs-body); line-height: 1.5; }
.c-game .mode-select { margin-top: 12px; padding: 2px; gap: 2px; border-radius: 6px; background: var(--card); border: 1px solid var(--rule); }
.c-game .mode-btn { min-height: 44px; border-radius: 4px; color: var(--ink); font-size: 12.5px; font-weight: 700; }
.c-game .mode-btn.active { background: var(--cobalt); color: var(--on-accent); box-shadow: none; }
.c-game .mode-note, .c-game .card-note { font-size: var(--fs-small); color: var(--muted); }
.c-game .start-btn, .c-game .primary-btn { min-height: 48px; border-radius: 6px; border-color: var(--cobalt); background: var(--cobalt); color: var(--on-accent); font-size: 14px; font-weight: 700; letter-spacing: 0; }
.c-game .start-btn:active, .c-game .primary-btn:active { background: color-mix(in srgb, var(--cobalt) 80%, var(--ink)); }
.c-game .secondary-btn, .c-game .lobby-secondary .kit-install-btn { border-radius: 6px; background: var(--card); border-color: var(--rule); color: var(--cobalt); font-size: 13px; font-weight: 700; }
.c-game .text-btn { min-height: 44px; color: var(--muted); font-size: 12px; font-weight: 400; }
.c-game .best-score { font-size: var(--fs-body); color: var(--muted); }
.c-game .best-score strong { color: var(--ink); }
.c-game .over-reason { font-size: var(--fs-body); }
.c-game .over-stats div { border-radius: var(--r-card); background: var(--paper-soft); }
.c-game .over-stats dt { font-size: 10px; font-weight: 700; letter-spacing: .08em; color: var(--muted); }
.c-game .over-stats dd { font-size: 17px; font-weight: 700; }
.c-game .over-scores h3 { font-size: 10px; font-weight: 700; letter-spacing: .08em; color: var(--muted); }
.c-game .over-scores li { font-size: 12.5px; }
.c-game .over-scores li.mine { background: var(--accent-subtle); }
.c-game .card-layer .field-note { padding: 9px 11px; border-left: 0; border-radius: var(--r-card); background: var(--paper-soft); }
.c-game .card-layer .field-note .label, html[data-theme] .c-game .card-layer .field-note .label { color: var(--muted); font-size: 10px; font-weight: 700; letter-spacing: .08em; }
.c-game .card-layer .field-note p { font-size: var(--fs-body); }

/* the How to play sheet replaces the old blurred scrim card */
.c-game .scrim.c-howto-layer { -webkit-backdrop-filter: none; backdrop-filter: none; }