/* Variables y configuración */
.pomodoro {
    --timer-size: 200px;
    --ring-thickness: 4px;
    --color-work: #4F46E5;
    --color-break: #10B981;
    --color-long-break: #8B5CF6;
    --color-warning: #FFA500;
    
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 1.5rem;
    color: var(--text-primary);
    user-select: none;
    background: var(--accent);
    border-radius: 1rem;
}

/* Fase actual */
.pomodoro__phase {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.75rem;
}

.phase-icon {
    position: relative;
    width: 2.5rem;
    height: 2.5rem;
    flex-shrink: 0;
}

.phase-icon i {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    font-size: 1.5rem;
    opacity: 0;
    transition: all 0.3s ease;
}

.phase-icon__work { color: var(--color-work); }
.phase-icon__break { color: var(--color-break); }
.phase-icon__long-break { color: var(--color-long-break); }

.phase-info__name {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.phase-info__cycle {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Timer */
.pomodoro__timer {
    position: relative;
    width: var(--timer-size);
    height: var(--timer-size);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timer-ring {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.timer-ring svg {
    position: absolute;
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.timer-ring circle {
    fill: none;
    stroke-width: var(--ring-thickness);
    transform-origin: center;
}

.timer-ring__bg {
    stroke: rgba(255, 255, 255, 0.1);
}

.timer-ring__progress {
    stroke: var(--color-work);
    stroke-linecap: round;
    transition: stroke-dashoffset 0.2s ease-in-out;
    stroke-dasharray: 283;  /* 2 * PI * 45 (radio) */
}

.timer-display {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    inset: 0;
    margin: auto;
    font-size: 2.5rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.05em;
    line-height: 1;
    width: 100%;
    text-align: center;
    user-select: none;
}

/* Controles */
.pomodoro__controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 0;
}

.control-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    padding: 0;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.control-btn i {
    font-size: 1rem;
    width: 1em;
    height: 1em;
    display: flex;
    align-items: center;
    justify-content: center;
}

.control-btn:hover {
    background: var(--bg-hover);
}

.control-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.control-btn--primary {
    color: var(--color-work);
    border-color: var(--color-work);
}

.control-btn--primary:hover:not(:disabled) {
    color: white;
    background: var(--color-work);
}

.control-btn--secondary {
    color: var(--text-secondary);
    border-color: var(--text-secondary);
}

.control-btn--danger {
    color: #ef4444;
    border-color: #ef4444;
    margin-left: 1rem;
}

.control-btn--danger:hover:not(:disabled) {
    color: white;
    background: #ef4444;
}

/* Estadísticas */
.pomodoro__stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.stat-item {
    padding: 1rem;
    text-align: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 0.75rem;
}

.stat-item__value {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.stat-item__label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Fases */
.pomodoro__phases {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.phase-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    border-radius: 0.5rem;
    transition: background 0.2s ease;
}

.phase-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.phase-item--work i { color: var(--color-work); }
.phase-item--break i { color: var(--color-break); }
.phase-item--long-break i { color: var(--color-long-break); }

/* Estados del Pomodoro */
.pomodoro[data-phase="work"] .phase-icon__work {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.pomodoro[data-phase="break"] .phase-icon__break {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.pomodoro[data-phase="break"] .timer-ring__progress {
    stroke: var(--color-break);
}

.pomodoro[data-phase="long-break"] .phase-icon__long-break {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.pomodoro[data-phase="long-break"] .timer-ring__progress {
    stroke: var(--color-long-break);
}

/* Estado running */
.pomodoro[data-running="true"] .control-btn--primary {
    color: var(--color-warning);
    border-color: var(--color-warning);
}

.pomodoro[data-running="true"] .control-btn--primary:hover:not(:disabled) {
    color: white;
    background: var(--color-warning);
}

/* Animaciones */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

.pomodoro[data-running="true"] .timer-display {
    animation: pulse 2s infinite;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-2px); }
    75% { transform: translateX(2px); }
}

.control-btn--danger:hover {
    animation: shake 0.3s ease-in-out;
}

/* Responsive */
@media (max-width: 768px) {
    .pomodoro {
        --timer-size: 180px;
    }

    .timer-display {
        font-size: 2rem;
    }

    .control-btn {
        width: 2.5rem;
        height: 2.5rem;
    }
}