/* ============================================================
   Word Search — Standalone Game UI
   Modern, soft, glass-morphism. Reuses app theme tokens so it
   adapts to light/dark automatically. Designed to stay easy on
   the eyes: low-glare surfaces, gentle highlight capsules.
   ============================================================ */

#game-wordsearch-screen {
    --ws-accent: var(--accent, #6C5CE7);
    --ws-accent-2: #00CEC9;
}

.ws-wrap {
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 14px 16px 28px;
    min-height: 100%;
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
}

/* Soft ambient glow — subtle, never glaring */
.ws-wrap::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(closest-side at 18% 8%, color-mix(in srgb, var(--ws-accent) 16%, transparent), transparent),
        radial-gradient(closest-side at 88% 92%, color-mix(in srgb, var(--ws-accent-2) 14%, transparent), transparent);
    opacity: .7;
}
.ws-wrap > * { position: relative; z-index: 1; }

/* ── Top bar ─────────────────────────────────────────────── */
.ws-topbar {
    display: flex;
    align-items: center;
    gap: 12px;
}
.ws-back-btn,
.ws-restart-btn {
    flex: 0 0 auto;
    width: 42px;
    height: 42px;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text-secondary);
    display: grid;
    place-items: center;
    cursor: pointer;
    transition: transform .15s ease, background .15s ease, color .15s ease;
}
.ws-back-btn:hover,
.ws-restart-btn:hover {
    background: var(--bg-card-hover);
    color: var(--ws-accent);
    transform: translateY(-1px);
}
.ws-title {
    flex: 1 1 auto;
    font-size: 1.18rem;
    font-weight: 800;
    letter-spacing: .2px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}
.ws-title .ws-title-badge {
    font-size: 1.35rem;
}

/* ── Stat pills ──────────────────────────────────────────── */
.ws-stats {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}
.ws-stat {
    flex: 1 1 0;
    min-width: 78px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 10px 12px;
    text-align: center;
    box-shadow: 0 6px 18px -14px rgba(0,0,0,.35);
}
.ws-stat-label {
    display: block;
    font-size: .68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .6px;
    color: var(--text-muted);
}
.ws-stat-value {
    display: block;
    font-size: 1.32rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.1;
    margin-top: 2px;
}
.ws-stat.accent .ws-stat-value { color: var(--ws-accent); }

/* ── Stage layout ────────────────────────────────────────── */
.ws-stage {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    justify-content: center;
}

/* ── Grid card ───────────────────────────────────────────── */
.ws-grid-card {
    flex: 1 1 0;
    min-width: 0;
    max-width: 560px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 14px;
    box-shadow: 0 24px 60px -38px rgba(31,35,80,.6);
}
.ws-grid-inner {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 16px;
    background: var(--bg-sunken);
    overflow: hidden;
    /* Faint grid lines for structure — low-contrast, never glaring */
    background-image:
        linear-gradient(to right, var(--border) 1px, transparent 1px),
        linear-gradient(to bottom, var(--border) 1px, transparent 1px);
    background-size:
        calc(100% / var(--ws-size, 8)) calc(100% / var(--ws-size, 8));
    background-position: -1px -1px;
}
.ws-grid {
    position: absolute;
    inset: 0;
    display: grid;
    grid-template-columns: repeat(var(--ws-size, 8), 1fr);
    grid-template-rows: repeat(var(--ws-size, 8), 1fr);
    container-type: inline-size;
    z-index: 2;
    touch-action: none;          /* let pointer drag own the gesture */
    user-select: none;
    -webkit-user-select: none;
}
.ws-cell {
    position: relative;
    display: grid;
    place-items: center;
    cursor: pointer;
}
/* Soft rounded highlight pad for the cell currently under the finger */
.ws-cell::before {
    content: '';
    position: absolute;
    inset: 9%;
    border-radius: 30%;
    background: var(--ws-accent);
    opacity: 0;
    transform: scale(.5);
    transition: opacity .14s ease, transform .14s ease;
}
.ws-cell.selecting::before {
    opacity: .16;
    transform: scale(1);
}
.ws-cell > span {
    position: relative;
    font-size: calc(58cqw / var(--ws-size, 8));
    font-weight: 700;
    color: var(--text-secondary);
    letter-spacing: .5px;
    transition: color .18s ease, transform .12s ease;
    will-change: transform;
}
.ws-cell.selecting > span {
    color: var(--ws-accent);
    transform: scale(1.12);
}
.ws-cell.found > span {
    color: var(--text-primary);
    font-weight: 800;
}
.ws-cell.miss > span {
    color: var(--wrong, #FF6B6B);
    animation: ws-shake .34s ease;
}
@keyframes ws-shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-2px); }
    75% { transform: translateX(2px); }
}

/* SVG capsule overlay — sits behind the letters */
#ws-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}
.ws-sel-line {
    stroke: var(--ws-accent);
    stroke-width: .74;
    stroke-linecap: round;
    transition: opacity .12s ease;
}
.ws-found-line {
    stroke-width: .74;
    stroke-linecap: round;
    opacity: .26;
    animation: ws-pop .35s cubic-bezier(.34,1.56,.64,1);
}
@keyframes ws-pop {
    0% { opacity: 0; stroke-width: .2; }
    100% { opacity: .26; stroke-width: .74; }
}

/* ── Word list panel ─────────────────────────────────────── */
.ws-words-panel {
    flex: 0 0 270px;
    align-self: stretch;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 16px 14px;
    box-shadow: 0 24px 60px -42px rgba(31,35,80,.55);
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.ws-words-title {
    font-size: .82rem;
    font-weight: 800;
    letter-spacing: .4px;
    color: var(--text-secondary);
    text-transform: uppercase;
}
.ws-words {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
    max-height: 460px;
    overflow-y: auto;
    padding-right: 2px;
}
.ws-chip {
    display: flex;
    flex-direction: column;
    gap: 1px;
    padding: 9px 13px;
    border-radius: 13px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    transition: all .2s ease;
}
.ws-chip-en {
    font-size: clamp(0.7rem, 2vw, 0.96rem);
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--text-primary);
}
.ws-chip-vi {
    font-size: .76rem;
    color: var(--text-muted);
}
.ws-chip.done {
    border-color: color-mix(in srgb, var(--ws-found, var(--ws-accent)) 50%, transparent);
    background: color-mix(in srgb, var(--ws-found, var(--ws-accent)) 12%, var(--bg-card));
}
.ws-chip.done .ws-chip-en {
    color: var(--ws-found, var(--ws-accent));
    text-decoration: line-through;
    text-decoration-thickness: 2px;
}
.ws-chip { position: relative; }
.ws-chip.done .ws-chip-en::after {
    content: ' ✓';
    text-decoration: none;
    display: inline-block;
    font-weight: 900;
}

/* ── Overlay ─────────────────────────────────────────────── */
.ws-overlay {
    position: absolute;
    inset: 0;
    z-index: 30;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: color-mix(in srgb, var(--bg) 62%, transparent);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.ws-overlay.show { display: flex; animation: ws-fade .25s ease; }
@keyframes ws-fade { from { opacity: 0; } to { opacity: 1; } }
.ws-overlay-card {
    width: min(420px, 100%);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 26px;
    padding: 30px 26px;
    text-align: center;
    box-shadow: 0 40px 90px -40px rgba(31,35,80,.7);
    animation: ws-rise .3s cubic-bezier(.34,1.4,.64,1);
}
@keyframes ws-rise { from { transform: translateY(16px) scale(.97); opacity: 0; } to { transform: none; opacity: 1; } }
.ws-ov-icon { font-size: 3.2rem; line-height: 1; }
.ws-ov-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-top: 10px;
}
.ws-ov-sub {
    font-size: .96rem;
    color: var(--text-secondary);
    margin-top: 8px;
    line-height: 1.5;
}
.ws-ov-rules {
    margin: 18px 0 22px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
}
.ws-ov-rule {
    background: var(--bg-sunken);
    border-radius: 12px;
    padding: 10px 14px;
    font-size: .88rem;
    color: var(--text-secondary);
}
.ws-ov-btn {
    width: 100%;
    border: none;
    border-radius: 16px;
    padding: 14px;
    font-size: 1.02rem;
    font-weight: 800;
    color: #fff;
    cursor: pointer;
    background: linear-gradient(135deg, var(--ws-accent), color-mix(in srgb, var(--ws-accent) 55%, var(--ws-accent-2)));
    box-shadow: 0 16px 32px -16px color-mix(in srgb, var(--ws-accent) 80%, transparent);
    transition: transform .15s ease, box-shadow .15s ease;
}
.ws-ov-btn:hover { transform: translateY(-2px); box-shadow: 0 20px 38px -16px color-mix(in srgb, var(--ws-accent) 85%, transparent); }
.ws-ov-btn:active { transform: translateY(0); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 860px) {
    .ws-stage { flex-direction: column; align-items: stretch; }
    .ws-grid-card { max-width: 480px; width: 100%; margin: 0 auto; }
    .ws-words-panel { flex: 1 1 auto; max-width: 480px; width: 100%; margin: 0 auto; }
    .ws-words {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        max-height: none;
        overflow: visible;
    }
}
@media (max-width: 520px) {
    .ws-wrap { padding: 10px 12px 22px; gap: 12px; }
    .ws-title { font-size: 1.04rem; }
    .ws-stat-value { font-size: 1.15rem; }
    .ws-grid-card { padding: 10px; border-radius: 20px; }
    .ws-words { grid-template-columns: repeat(auto-fill, minmax(116px, 1fr)); gap: 7px; }
    .ws-chip { padding: 7px 10px; }
}

/* Fallback for browsers without color-mix (graceful, not glaring) */
@supports not (background: color-mix(in srgb, red, blue)) {
    .ws-wrap::before { background: none; }
    .ws-chip.done { background: var(--accent-bg, #EDE8FF); border-color: var(--ws-accent); }
    .ws-ov-btn { background: var(--ws-accent); }
}