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#A61820}.categories-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:20px}.formations-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:25px}.loading{color:#888;text-align:center;padding:40px;font-size:1.1rem}.no-data{color:#666;text-align:center;padding:40px}.back-button{background:transparent;border:none;color:#888;font-size:1rem;cursor:pointer;padding:10px 0;margin-bottom:20px;transition:color .2s}.back-button:hover{color:#fff}.formation-detail{background:linear-gradient(135deg,#1a1a2e,#16213e);border-radius:16px;padding:30px}.detail-header{display:flex;gap:30px;margin-bottom:40px}.detail-thumbnail{width:400px;height:225px;border-radius:12px;background:linear-gradient(135deg,#a61820,#5a0d11);flex-shrink:0;overflow:hidden;display:flex;align-items:center;justify-content:center}.detail-thumbnail 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