.main-container {
    display: flex;
    gap: 24px;
    margin-bottom: 24px;
    width: 100%;
    max-width: 900px;
    max-height: 300px;
    justify-content: space-between;
}

/* Exercise Display */
.exercise-container {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 16px;
    border: 1px solid var(--key-border);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    /*min-height: 0;*/
}

.exercise-label {
    flex-shrink: 0;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.exercise-text {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.5rem;
    line-height: 1.6;
    letter-spacing: 0.15em;
    min-height: 60px;
    /*display: flex;*/
    flex-wrap: wrap;
    align-items: center;
    max-height: 250px;
    overflow-y: auto;
    scrollbar-color: var(--text-secondary) var(--text-muted);
    scrollbar-width: thin;
    mask-image: linear-gradient(to bottom, black 95%, transparent);

}


.exercise-text::-webkit-scrollbar {
    width: 12px;
}

.exercise-text::-webkit-scrollbar-track {
    background: var(--text-muted);
}

.exercise-text::-webkit-scrollbar-thumb {
    background: var(--text-secondary);
    border-radius: 6px;
}

.exercise-text::-webkit-scrollbar-thumb:hover {
    background: #888;
}


.exercise-texttttt > span:has(+ br)::after {
    content: '⏎';
    color: var(--text-secondary);
    font-size: 0.5em;
    margin-left: 2px;
}


.word {
    display: inline-flex;
    white-space: nowrap;
    align-items: baseline;
}

.char {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.2em;
    height: 1.5em;
    transition: all 0.15s ease;
}


.char.pending {
    color: var(--text-muted);
}

.char.completed {
    color: var(--text-primary);
}

.char.current {
    color: var(--bg-primary);
    background: var(--accent-green);
    border-radius: 6px;
    box-shadow: 0 0 20px var(--accent-green-glow);
    animation: pulse-green 1.5s ease-in-out infinite;
    scroll-margin-top: 45px;
}

.char.current.error {
    background: var(--accent-red);
    box-shadow: 0 0 20px var(--accent-red-glow);
    animation: shake 0.3s ease-in-out, pulse-red 1.5s ease-in-out infinite;
}

@keyframes pulse-green {
    0%, 100% { box-shadow: 0 0 15px var(--accent-green-glow); }
    50% { box-shadow: 0 0 25px var(--accent-green-glow); }
}

@keyframes pulse-red {
    0%, 100% { box-shadow: 0 0 15px var(--accent-red-glow); }
    50% { box-shadow: 0 0 25px var(--accent-red-glow); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-4px); }
    40% { transform: translateX(4px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

/* Exercise List */
.exercise-list-container {
    display:flex;
    flex-direction: column;
    flex-shrink: 0;
    width: 250px;
    background: var(--bg-secondary);
    border-radius: 16px;
    border: 1px solid var(--key-border);
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.exercise-list-header {
    flex-shrink: 0;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-secondary);
    padding: 16px 20px;
    border-bottom: 1px solid var(--key-border);
}
.exercise-list-header > select
{
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    width: 100%;
}
.exercise-list {
    max-height: 300px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--key-border) transparent;
}

.exercise-list::-webkit-scrollbar {
    width: 6px;
}

.exercise-list::-webkit-scrollbar-track {
    background: transparent;
}

.exercise-list::-webkit-scrollbar-thumb {
    background: var(--key-border);
    border-radius: 3px;
}



.exercise-group {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    font-weight: bold;
    text-transform: uppercase;
    padding: 6px 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
    color: var(--text-primary);
    border-bottom: 1px solid var(--text-secondary);
    border-top: 1px solid var(--text-secondary);
    background: var(--bg-primary);
}
.exercise-group.active {

    color: var(--accent-green);
}

.exercise-item {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    padding: 6px 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
    color: var(--text-secondary);
    /*border-bottom: 1px solid var(--text-secondary);*/
}
.exercise-item > span:first-child {
    text-transform: uppercase;
    /*letter-spacing: 1.5px;*/
    font-weight: bold;
}
.exercise-item > span:last-child {
    color: var(--text-secondary);
}



.exercise-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.exercise-item.active {
    background: var(--bg-tertiary);
    border-left-color: var(--accent-green);
    color: var(--text-primary);
}

.exercise-item.completed-exercise {
    color: var(--accent-green);
}

.exercise-item.completed-exercise::after {
    content: ' ✓';
}




/* specific for full keyboard, not present in num keyboard */
.keyboard-row:last-child {
    margin-bottom: 0;
    justify-content: center;
}

.completion-message button:last-of-type {
    background: var(--accent-green);
}
.completion-message button:first-of-type {
    background: var(--text-secondary);
}


.icon-box svg {
    width: 100px;
    height: 100px;
    border: 4px solid var(--key-border);
    border-radius: 16px;
}



/*Chromebook and alike 1366x650 */
@media (max-height: 900px) {
    body {
        padding: 8px 12px !important;
        gap: 8px;
    }
    .stats-bar {
        padding: 4px 24px;
    }
    .main-container {
        gap: 8px;
        max-height: 260px;
    }
    .keyboard {
        padding: 14px;
    }

}