* Rebels open to talks after army bombardment
* Pressure mounts for military to hand over power
* Opposition open to joint civilian-military rule (Adds detail on opposition demands, govt reaction)
By Edward McAllister and Mahamat Ramadane
N'DJAMENA, April 25 (Reuters) - Rebels in northern Chad are ready to observe a ceasefire and to discuss a political settlement after the battlefield death of President Idriss Deby last week, a rebel spokesman said on Sunday.
The rebels, known as the Front for Change and Concord in Chad (FACT), came over the northern border from Libya on April 11 calling for an end to Deby's 30-year rule. They came as close as 200-300 km (125-185 miles) from the capital N'Djamena before being pushed back by the army.
Deby was killed on Monday while visiting troops at the front, just after he won an election. His death shocked the Central African country, which has long been a Western ally against Islamist militants.
The air force has since bombarded rebel positions, the military and rebels said. The military said on Saturday it had "annihilated" the rebels.
After Deby's death, a military council headed by his son, Mahamat Idriss Deby, seized power and said it would oversee an 18-month transition to elections. Opposition politicians called this a coup, and the rebels said they would not accept a "monarchy".
"FACT is ready to observe a ceasefire for a political settlement that respects the independence and sovereignty of Chad and does not endorse a coup d'etat," FACT spokesman Kingabe Ogouzeimi de Tapol told Reuters.
The military council is under pressure to hand over power to a civilian transitional government as soon as possible. The African Union has expressed "grave concern" about the military takeover, while France and regional powers are pushing for a civilian-military solution.
A move towards temporary civilian-military rule could offer Chad a way out of the crisis. Niger's President Mohamed Bazoum and Mauritanian President Mohamed Ould Ghazouani are acting as mediators on behalf of the African Union. United Nations representatives are also holding talks with both sides.
A consensus is emerging among opposition politicians and civil society to support a transitional civilian president with a military vice president or prime minister, they told Reuters.
The proposal would mirror a transition in Mali, where a coup last August prompted international calls for the military to relinquish power. A civilian president was appointed with a vice president from the military, although the Malian opposition are still concerned about the military's hold on power.
"Most of us are in favour of cohabitation between the military, politicians and civil society," said Mahamat Ahmat Alhabo, president of the opposition PLD party. "The Malian model ... is very inspiring."
Any agreement will require cooperation from the military council. Its spokesman, Azem Bermendao Agouna, said it was open to discussions, but added: "The army will solve all the major challenges and will organise free and transparent elections." (Reporting by Edward McAllister; Editing by Hugh Lawson, Edmund Blair and Gareth Jones)
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