/* =============================================
   QUEUE MASTERY — SIMULATOR
   Static queue visuals, simulator, logs, pointers
   ============================================= */


/* =============================================
   STATIC QUEUE VISUAL
   ============================================= */

.pointer-labels {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.static-queue-visual {
    display: flex;
    gap: 3px;
}

.sq-cell {
    position: relative;
    width: 68px;
    height: 58px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 2px solid;
    font-family: var(--font-mono);
    font-weight: 600;
    transition: all 0.35s;
}

.sq-cell .val {
    font-size: 1.1rem;
}

.sq-cell .idx {
    position: absolute;
    bottom: -18px;
    font-size: 0.68rem;
    color: var(--text-muted);
}

.sq-cell.empty {
    background: var(--cell-empty);
    border-color: var(--border);
    color: var(--text-muted);
}

.sq-cell.filled {
    background: var(--cell-filled-bg);
    border-color: var(--cell-filled-border);
    color: var(--accent);
}

.sq-cell.front-cell {
    background: var(--cell-front-bg);
    border-color: var(--cell-front-border);
    color: var(--success);
}

.sq-cell.rear-cell {
    background: var(--cell-rear-bg);
    border-color: var(--cell-rear-border);
    color: var(--gold);
}

[data-theme="light"] .sq-cell.rear-cell {
    color: #8A7010;
}

.sq-cell.wasted {
    background: var(--cell-wasted-bg);
    border-color: var(--cell-wasted-border);
    color: var(--error);
}

.arrow-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 1.5rem;
    text-align: center;
}

.wasted-label {
    color: var(--error);
    font-weight: 600;
}


/* =============================================
   SIMULATOR CARD + CONTROLS
   ============================================= */

.simulator-card {
    border-color: var(--accent);
    box-shadow: 0 0 30px var(--accent-glow);
}

.sim-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.sim-input-group {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: wrap;
}

.sim-input {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.6rem 0.9rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 1rem;
    width: 130px;
    outline: none;
    transition: border-color 0.2s;
    min-height: 44px;
}

.sim-input:focus {
    border-color: var(--accent);
}

.sim-size-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.sim-size-control select {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.45rem 0.7rem;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    cursor: pointer;
}


/* =============================================
   POINTER PILLS
   ============================================= */

.sim-pointers {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.ptr {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    padding: 0.35rem 0.8rem;
    border-radius: var(--radius-sm);
}

.front-ptr {
    background: var(--accent-glow);
    color: var(--accent);
    border: 1px solid rgba(164, 180, 101, 0.3);
}

.rear-ptr {
    background: var(--gold-glow);
    color: var(--gold);
    border: 1px solid rgba(255, 207, 80, 0.25);
}

[data-theme="light"] .rear-ptr {
    color: #8A7010;
}

.size-ptr {
    background: var(--olive-glow);
    color: var(--olive);
    border: 1px solid rgba(98, 111, 71, 0.3);
}


/* =============================================
   SIMULATOR ARRAY
   ============================================= */

.sim-array {
    display: flex;
    gap: 4px;
    margin-bottom: 1rem;
    min-height: 80px;
    align-items: flex-end;
    flex-wrap: wrap;
}

.sim-cell {
    position: relative;
    min-width: 82px;
    height: 70px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--cell-empty);
    font-family: var(--font-mono);
    transition: all 0.35s ease;
}

.sim-cell .cell-value {
    font-size: 1.15rem;
    font-weight: 700;
}

.sim-cell .cell-index {
    position: absolute;
    bottom: -20px;
    font-size: 0.68rem;
    color: var(--text-muted);
}

.sim-cell .cell-markers {
    position: absolute;
    top: -22px;
    display: flex;
    gap: 3px;
}

.marker {
    font-size: 0.62rem;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: 3px;
}

.marker-front {
    background: var(--accent);
    color: #fff;
}

.marker-rear {
    background: var(--gold);
    color: #2A2E1E;
}

.sim-cell.filled {
    background: var(--cell-filled-bg);
    border-color: var(--cell-filled-border);
    color: var(--accent);
}

.sim-cell.is-front {
    background: var(--cell-front-bg);
    border-color: var(--cell-front-border);
    color: var(--success);
}

.sim-cell.is-rear {
    background: var(--cell-rear-bg);
    border-color: var(--cell-rear-border);
    color: var(--gold);
}

[data-theme="light"] .sim-cell.is-rear {
    color: #8A7010;
}

.sim-cell.is-front.is-rear {
    background: var(--cell-filled-bg);
    border-color: var(--accent);
    color: var(--accent);
}

.sim-cell.wasted {
    background: var(--cell-wasted-bg);
    border-color: var(--cell-wasted-border);
    color: var(--error);
}


/* =============================================
   SIMULATOR ANIMATIONS
   ============================================= */

.sim-cell.pop-in {
    animation: popIn 0.35s ease;
}

@keyframes popIn {
    0% {
        transform: scale(0.7);
        opacity: 0.5;
    }

    60% {
        transform: scale(1.1);
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.sim-cell.pop-out {
    animation: popOut 0.35s ease;
}

@keyframes popOut {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    100% {
        transform: scale(0.7) translateY(-10px);
        opacity: 0;
    }
}


/* =============================================
   SIMULATOR LOG
   ============================================= */

.sim-log {
    max-height: 170px;
    overflow-y: auto;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.8rem;
    font-family: var(--font-mono);
    font-size: 0.88rem;
    line-height: 1.7;
}

.log-entry {
    padding: 0.15rem 0;
    border-bottom: 1px solid rgba(58, 58, 44, 0.3);
}

.log-entry:last-child {
    border-bottom: none;
}

.log-entry.info {
    color: var(--accent);
}

.log-entry.success {
    color: var(--success);
}

.log-entry.warning {
    color: var(--gold);
}

[data-theme="light"] .log-entry.warning {
    color: #8A7010;
}

.log-entry.error {
    color: var(--error);
}


/* =============================================
   COMPARISON HELPERS USED WITH SIMS
   ============================================= */

.trace-steps {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    margin-bottom: 0.8rem;
}

.trace-info {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.8rem 1rem;
    font-family: var(--font-mono);
    font-size: 0.92rem;
    color: var(--text-secondary);
    min-height: 60px;
    white-space: pre-line;
}

.circular-diagram {
    display: flex;
    justify-content: center;
    margin: 1rem 0;
}

#circularCanvas {
    border-radius: var(--radius);
}


/* =============================================
   RESPONSIVE SIMULATOR
   ============================================= */

@media (max-width: 900px) {
    .comparison-box {
        flex-direction: column;
    }

    .compare-arrow {
        justify-content: center;
        padding: 0.3rem 0;
    }
}

@media (max-width: 600px) {
    .sim-cell {
        min-width: 60px;
        height: 58px;
    }
}