/* =============================================================
   Knightoria V2 — Chess board + analysis view
   ============================================================= */


/* ===== Layout: 3-col on desktop, stacked on mobile ===== */
.av-app {
    max-width: 1480px;
    margin: 0 auto;
    padding: 0 1rem 4rem;
}

.av-header {
    display: flex; align-items: center; gap: 1rem;
    padding: 1rem 0.5rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}
.av-header__back {
    width: 40px; height: 40px;
    display: grid; place-items: center;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-soft);
    transition: var(--t);
}
.av-header__back:hover { background: var(--surface-3); color: var(--text); }
.av-header__title { font-size: 1.15rem; margin: 0; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.av-header__sub { color: var(--text-muted); font-size: 0.85rem; }

.av-stage {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}
@media (min-width: 1080px) {
    .av-stage {
        grid-template-columns: 280px 1fr 320px;
        align-items: start;
    }
}

/* ===== Player rows ===== */
.av-player {
    display: flex; align-items: center; gap: 0.85rem;
    padding: 0.85rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.av-player--white {
    border-color: rgba(234,214,182,0.25);
    background: linear-gradient(135deg, rgba(234,214,182,0.06), var(--surface));
}
.av-player--black {
    border-color: rgba(139,74,58,0.35);
    background: linear-gradient(135deg, rgba(139,74,58,0.08), var(--surface));
}
.av-player__avatar {
    width: 40px; height: 40px;
    display: grid; place-items: center;
    background: var(--surface-2);
    border-radius: 50%;
    font-size: 1.4rem;
}
.av-player__info { flex: 1; min-width: 0; }
.av-player__name {
    font-weight: 700;
    color: var(--text);
    font-size: 0.95rem;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.av-player__meta { color: var(--text-muted); font-size: 0.82rem; }
.av-player__accuracy {
    font-family: 'Cinzel', serif;
    font-weight: 900;
    color: var(--gold);
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* ===== Center: board + eval bar ===== */
.av-board-area {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}
@media (min-width: 600px) {
    .av-board-area { grid-template-columns: 18px 1fr; }
}
.av-evalbar {
    display: none;
    position: relative;
    width: 18px;
    background: #1a1428;
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
    min-height: 360px;
}
@media (min-width: 600px) { .av-evalbar { display: block; } }
.av-evalbar__white {
    position: absolute; left: 0; right: 0;
    bottom: 0;
    background: linear-gradient(180deg, #ead6b6, #cdb487);
    transition: height 0.4s var(--t);
    height: 50%;
}
.av-evalbar__center {
    position: absolute; left: 0; right: 0;
    top: 50%;
    height: 1px;
    background: var(--gold);
    opacity: 0.4;
    pointer-events: none;
}
.av-evalbar__value {
    position: absolute; bottom: 0.3rem; left: 50%;
    transform: translateX(-50%);
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text);
    background: rgba(0,0,0,0.5);
    padding: 1px 4px;
    border-radius: 3px;
}

.av-board-wrap {
    position: relative;
    aspect-ratio: 1;
    width: 100%;
    background: var(--surface);
    border: 2px solid var(--gold);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow), var(--shadow-gold);
}
.av-board {
    position: relative;
    width: 100%; height: 100%;
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    grid-template-rows: repeat(8, 1fr);
    /* Force LTR so a-file is on the left regardless of page direction */
    direction: ltr;
}
.av-board__sq {
    position: relative;
    overflow: hidden;
}
.av-board__sq--light { background: #f0d9b5; }   /* chess.com-like light */
.av-board__sq--dark  { background: #b58863; }   /* chess.com-like dark  */
.av-board__sq--from {
    box-shadow: inset 0 0 0 0 transparent;
    background: rgba(255, 207, 110, 0.45) !important;
}
.av-board__sq--to {
    background: rgba(255, 207, 110, 0.55) !important;
}
.av-board__sq--check { background: #d4694b !important; }

/* Coordinate labels — file (bottom row) + rank (left column) */
.av-board__sq__file,
.av-board__sq__rank {
    position: absolute;
    font-family: 'Cinzel', monospace;
    font-size: clamp(0.6rem, 1.2vw, 0.78rem);
    font-weight: 800;
    line-height: 1;
    pointer-events: none;
    user-select: none;
    text-shadow: 0 1px 2px rgba(0,0,0,0.25);
    z-index: 3;
}
.av-board__sq__file {
    bottom: 3px;
    right: 4px;
}
.av-board__sq__rank {
    top: 3px;
    left: 4px;
}
/* Contrast: dark-square label = light tone, light-square label = dark tone */
.av-board__sq--light .av-board__sq__file,
.av-board__sq--light .av-board__sq__rank { color: #b58863; }
.av-board__sq--dark  .av-board__sq__file,
.av-board__sq--dark  .av-board__sq__rank { color: #f0d9b5; }

.av-board__piece {
    position: absolute;
    inset: 6%;
    width: 88%;
    height: 88%;
    user-select: none;
    pointer-events: none;
    filter: drop-shadow(0 2px 3px rgba(0,0,0,0.35));
    transition: transform 200ms cubic-bezier(.2,.8,.2,1);
}
.av-board__sq:hover .av-board__piece {
    transform: scale(1.04);
}

/* Move classification badge */
.av-classify-badge {
    position: absolute;
    width: 28px; height: 28px;
    display: grid; place-items: center;
    border-radius: 50%;
    color: #fff;
    font-size: 0.75rem;
    font-weight: 900;
    border: 2px solid #fff;
    box-shadow: 0 0 0 2px var(--bg), 0 4px 8px rgba(0,0,0,0.4);
    pointer-events: none;
    z-index: 2;
}

/* Better-move hint card */
.av-better {
    margin-top: 1rem;
    padding: 1rem 1.15rem;
    background: linear-gradient(160deg, rgba(77,209,144,0.10), rgba(77,209,144,0.04));
    border: 1px solid rgba(77,209,144,0.30);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 0.85rem;
}
.av-better__icon {
    flex: 0 0 auto;
    width: 36px; height: 36px;
    display: grid; place-items: center;
    background: var(--success);
    color: var(--bg);
    border-radius: 50%;
    font-weight: 900;
    box-shadow: 0 0 14px rgba(77,209,144,0.35);
}
.av-better__body { flex: 1; min-width: 0; }
.av-better__lbl {
    display: block;
    font-size: 0.78rem;
    color: var(--success);
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.av-better__move {
    display: block;
    font-family: 'Cinzel', monospace;
    font-size: 1.1rem;
    font-weight: 900;
    color: var(--text);
    margin-top: 0.15rem;
}

/* Engine progress (during analysis) */
.av-progress {
    margin-top: 1rem;
    padding: 1rem 1.15rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-align: center;
}
.av-progress__label {
    color: var(--text-soft);
    font-size: 0.88rem;
    margin-bottom: 0.5rem;
}
.av-progress__bar {
    height: 6px;
    background: var(--bg-soft);
    border-radius: 3px;
    overflow: hidden;
}
.av-progress__fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--gold), var(--crimson-bright));
    transition: width 0.3s var(--t);
}

/* Move nav bar */
.av-nav {
    margin-top: 1rem;
    display: grid;
    grid-template-columns: 44px 44px 1fr 44px 44px;
    gap: 0.4rem;
    align-items: center;
    padding: 0.5rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.av-nav__btn {
    width: 44px; height: 44px;
    display: grid; place-items: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-soft);
    transition: var(--t);
}
.av-nav__btn:hover:not(:disabled) {
    background: var(--surface-3);
    color: var(--text);
    border-color: var(--border-strong);
}
.av-nav__btn:disabled { opacity: 0.35; cursor: not-allowed; }
.av-nav__center {
    text-align: center;
    overflow: hidden;
}
.av-nav__label {
    display: block;
    font-family: 'Cinzel', serif;
    font-weight: 700;
    color: var(--text);
    font-size: 0.95rem;
}
.av-nav__class {
    display: block;
    font-size: 0.75rem;
    margin-top: 0.15rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}


/* ===== Side: summary + classifications ===== */
.av-summary {
    padding: 1.25rem;
    background: linear-gradient(160deg, var(--surface), var(--surface-2));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
}
.av-summary__title {
    font-family: 'Cinzel', serif;
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.85rem;
}
.av-summary__row {
    display: flex; justify-content: space-between;
    padding: 0.6rem 0;
    border-bottom: 1px dashed var(--border);
    font-size: 0.88rem;
}
.av-summary__row:last-child { border-bottom: none; }
.av-summary__row dt { color: var(--text-muted); font-weight: 600; }
.av-summary__row dd { color: var(--text); font-weight: 700; margin: 0; }

/* Classification grid */
.av-classify {
    padding: 1.25rem;
    background: linear-gradient(160deg, var(--surface), var(--surface-2));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}
.av-classify__title {
    font-family: 'Cinzel', serif;
    font-size: 0.78rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 1rem;
}
.av-classify__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}
.av-classify__cell {
    padding: 0.7rem 0.5rem;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--border);
    border-radius: 8px;
    text-align: center;
}
.av-classify__count {
    display: block;
    font-family: 'Cinzel', serif;
    font-size: 1.3rem;
    font-weight: 900;
    line-height: 1;
}
.av-classify__lbl {
    display: block;
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.av-classify__cell--brilliant  .av-classify__count { color: var(--c-brilliant); }
.av-classify__cell--best       .av-classify__count { color: var(--c-best); }
.av-classify__cell--excellent  .av-classify__count { color: var(--c-excellent); }
.av-classify__cell--good       .av-classify__count { color: var(--c-good); }
.av-classify__cell--inaccuracy .av-classify__count { color: var(--c-inaccuracy); }
.av-classify__cell--mistake    .av-classify__count { color: var(--c-mistake); }
.av-classify__cell--blunder    .av-classify__count { color: var(--c-blunder); }

/* Move list */
.av-movelist {
    padding: 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-top: 1rem;
}
.av-movelist__title {
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
}
.av-movelist__rows {
    max-height: 360px;
    overflow-y: auto;
    display: grid;
    grid-template-columns: 30px 1fr 1fr;
    gap: 0;
    font-family: 'Cinzel', monospace;
    font-size: 0.88rem;
}
.av-movelist__num {
    color: var(--text-muted);
    text-align: center;
    padding: 0.4rem 0.25rem;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border);
}
.av-movelist__cell {
    padding: 0.4rem 0.5rem;
    cursor: pointer;
    transition: var(--t);
    border-bottom: 1px solid var(--border);
    color: var(--text-soft);
    font-weight: 700;
}
.av-movelist__cell:hover { background: var(--surface-2); color: var(--text); }
.av-movelist__cell.is-current {
    background: var(--gold-soft);
    color: var(--gold);
}
.av-movelist__icon { display: inline-block; width: 14px; }


/* ===== Pre-analyze CTA card ===== */
.av-pre {
    text-align: center;
    padding: 3rem 2rem;
    background: linear-gradient(160deg, var(--surface), var(--surface-2));
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow), var(--shadow-gold);
}
.av-pre__icon {
    font-size: 4rem;
    margin-bottom: 1.25rem;
    color: var(--gold);
    filter: drop-shadow(0 0 20px var(--gold-glow));
}
.av-pre__title { font-size: 1.5rem; margin-bottom: 0.85rem; }
.av-pre__desc {
    color: var(--text-soft);
    font-size: 1rem;
    line-height: 1.7;
    max-width: 460px;
    margin: 0 auto 1.5rem;
}
.av-pre__actions { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; }