.timer-container {
    text-align: center;
}

.timer-display {
    font-size: 5rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    color: var(--primary-color);
    text-shadow: 0 0 30px rgba(59, 130, 246, 0.4);
    margin: var(--spacing-lg) 0;
    letter-spacing: -2px;
    display: none;
}

.timer-display.active {
    display: block;
}

.input-container {
    margin-bottom: var(--spacing-xl);
}

.input-container.hidden {
    display: none;
}

.time-inputs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    align-items: center;
}

.time-input-group {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.time-input-group input {
    width: 80px;
    height: 80px;
    font-size: 2.5rem;
    text-align: center;
    background: var(--bg-color);
    border: 2px solid var(--card-border);
    border-radius: var(--radius-md);
    color: var(--text-color);
    outline: none;
    transition: border-color var(--transition-fast);
}

.time-input-group input:focus {
    border-color: var(--primary-color);
}

.time-input-group label {
    margin-top: var(--spacing-xs);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.btn-start {
    background: var(--success-color);
    min-width: 120px;
}

.btn-start:hover {
    background: #059669;
}

.btn-stop {
    background: var(--danger-color);
    color: white;
    min-width: 120px;
}

.btn-stop:hover {
    background: #dc2626;
}

@keyframes flash {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.timer-display.finished {
    color: var(--danger-color);
    animation: flash 1s infinite;
}